A handheld detector, a support device for a handheld detector, and a method for operating a handheld detector

Abstract

PROBLEM TO BE SOLVED: To provide a handheld wave detector (10) including at least one base body (14), the base body having at least one wave detection device (20), and a position measuring device for measuring the position of a target in an object (18) to be inspected or a moisture measuring device for determining the humidity in the object (18) to be inspected.SOLUTION: According to the present invention, there are provided at least one first supporting device (28) for movably supporting a base body (14) relatively to an inspection surface (16) of the object (18), and second supporting devices (30, 32, 34) for movably supporting the base body (14) relatively to the inspection surface (16) of the object (18). In that case, the first supporting device (28) is different from the second supporting devices (30, 32, and 34).SELECTED DRAWING: Figure 1e

Description

Background Art

[0001] The present invention relates to a handheld detector, in particular a position measuring device for measuring the position of an object within an object to be inspected, or a moisture measuring device for determining moisture inside or outside an object to be inspected, which comprises at least one base body having at least one detection device. A detector of such a type is known from the prior art, for example Patent Document 1.

Prior Art Documents

Patent Documents

[0002]

Patent Document 1

Summary of the Invention

[0003] The proposed handheld detector for inspecting an object is based on a detector comprising at least one base body having at least one detection device. According to the invention, the detector is provided with at least one first support device for movably supporting the base body relative to the inspection surface of the object, and a second support device for movably supporting the base body relative to the inspection surface of the object, and the first support device and the second support device are different from each other.

[0004] In one embodiment, the detector is realized as a position measuring device for measuring the position of an object within the object to be inspected. In an alternative or additional embodiment, the detector is realized as a moisture measuring device for determining moisture inside or outside the object to be inspected. In such a form, the handheld detector is used to measure the position of a position measurement object hidden under the inspection surface and / or to detect the moisture hidden under the inspection surface or present on the inspection surface of the object to be inspected, in particular the humidity of the moisture hidden under the inspection surface. The handheld detector has at least one handheld base body, which has at least one detection device, in particular a position measurement device.

[0005] The "detection device", in particular the position measurement device, is provided for detecting detection data, that is, in particular, data related to position measurement (hereinafter referred to as position measurement data) and / or data related to moisture (hereinafter referred to as moisture measurement value or humidity measurement value), such as a position measurement object hidden under the inspection surface of the object to be inspected and / or moisture hidden under or present on the inspection surface of the object to be inspected. In this case, the "detection device" should be interpreted as a device having means provided for detecting physical and / or chemical values including the presence of a position measurement object and / or moisture and / or humidity, etc., and converting them into electrically evaluable signals. In particular, the detection device includes the necessary components, electrical circuits, etc. for operating these means.

[0006] In one embodiment, the detection device has at least one detection sensor for performing detection. In principle, the detection sensor is suitable for detecting a position measurement object hidden in the inspection object and / or moisture by evaluating, for example, changes in an electrical and / or magnetic field or changes in the arrival time of a light beam radiated into the material to be inspected. For example, the detection device may have an inductive sensor, an AC sensor, a capacitive sensor, etc. Similarly, sensors provided for detection by electromagnetic radiation, in particular 50 Hz sensors, microwave sensors, radar sensors, terahertz sensors, extremely high frequency sensors, X-ray sensors, infrared sensors or NMR sensors are also suitable. Furthermore, temperature sensors, humidity sensors or acoustic sensors, such as ultrasonic sensors or impact echo sensors or neutron sensors, can be considered as detection devices. Preferably, combinations of a plurality of detection sensors of various types for performing detection are also considered.

[0007] "Provided" should in particular be interpreted as "programmed", "designed" and / or "equipped" specifically for a purpose. For an object to be "provided" with a predetermined function means in particular that the object fulfills and / or executes this predetermined function in at least one usage state and / or operating state and / or is designed to fulfill these functions.

[0008] A "handheld" detector should in particular be interpreted as being one that can be carried by hand alone, in particular with only one hand, without using a transport machine. In particular, the detector can be guided on the inspection surface by hand during the measurement operation by movements freely performed by the user of the detector, in particular one-dimensional or two-dimensional free movements. The mass of the handheld detector is in particular less than 5 kg, preferably less than 3 kg, and particularly preferably less than 1 kg. In one embodiment, the handheld detector has a housing with a handle or handle area that can guide the detector on the inspection surface of the object to be inspected.

[0009] The handheld detector has, in one embodiment, a housing that receives at least the main functional components of the detector. The housing has at least one base body of the detector. In one embodiment, the detector consists of a housing that forms the base body of the detector.

[0010] In particular, the housing receives at least one control device, a detection device including a detection sensor, an input device and / or an output device, in particular a display device, and an energy supply device. In particular, more than 50% of the total volume of the components, preferably more than 75%, and particularly preferably 100% are accommodated within the housing of the detector. In such a form, a detector that is particularly compact and lightweight and can be guided by the user with one hand can be realized. Furthermore, in such a form, the components of the detector can be protected, preferably by the housing of the detector, against damage and environmental influences, in particular against the ingress of moisture and dust.

[0011] The "inspection surface" is, in particular with respect to hidden position measurement objects and / or with respect to moisture and / or humidity, the surface of an object or workpiece to be inspected. In this sense, the concept "object" means all materials that can be inspected by the detector. For example, in an object, building materials or workpieces, walls, floors, roofs, facades, organic substances (in particular also parts of the body) and / or parts of the site are not excluded. The object can consist, for example, in particular of wood, glass, plastic, concrete, stone, brick, plaster, metal, organic materials, etc. Furthermore, in principle, liquids or gases can also be inspected. An example of a position measurement object includes a material that is different from the material of the object to be inspected or whose physical properties are different from the material of the object to be inspected. Typical examples of such position measurement objects are electrical wires, pipes, gas pipes, cavities, reinforcements, etc. hidden within a building wall, or also moisture hidden within a building wall.

[0012] The detector further has a control device for controlling the functional components of the detector, in particular for controlling at least the detection device, the input device and / or the output device, the data communication interface, the memory device and other components that are considered advantageous for those skilled in the art. The control device is provided for controlling the operation of the detector and for evaluating the detection data provided by the detection device.

[0013] The energy supply device of the detection device is provided for operating the detector and for supplying electrical energy during operation. In one embodiment, the energy supply device is an energy accumulator independent of the power grid, in particular a storage battery, a battery, etc.

[0014] The input device is used to input working parameters, i.e. all necessary and / or significant operating parameters of the detector, in particular the operating parameters for controlling the detector, and the parameters relating to the evaluation of the measurement results. The output device is used to output the working parameters and / or the detection information, i.e. in particular the information regarding the object whose position has been measured and / or the humidity that has been position-measured or detected. In an embodiment of the detector, the input device and / or the output device are arranged on the side of the housing facing the user when the detector is in use.

[0015] Furthermore, a storage device, for example in the form of an electronic data memory, may be provided for storing the measurement results and / or the detection information and / or the working parameters.

[0016] The "support device" means, within the framework of this text, a device used to be able to guide the base body of the detector and thus the detection device at a certain distance on the inspection surface in a suitable manner. In one embodiment of a handheld detector, the support device is arranged in relation to the base body of the detector such that at least a part of the support device (for example wheels, sliding parts, brushes, etc.) is arranged between the inspection surface of the object and the base body of the detector when carrying out the detection measurement.

[0017] In this case, the mechanical contact can be realized, for example, by means of hard sliding parts as protrusions of a substrate made of plastic or, for example, sliding parts made of a polymer such as Teflon (Registered Trademark) or nylon or felt, which are optimized for sliding and wear. A support device of this type enables the user to move the detector in a two-dimensional direction relative to the inspection surface, especially in a structurally simple form. In particular, by supporting the detector movably in two dimensions, the user can guide the detector on the inspection surface with a free movement, for example, with a free wiper movement. Due to the free wiper movement of the detector, a free path, which is particularly arbitrarily shaped and independent of a predetermined travel path (path of position change), can be obtained.

[0018] Furthermore, mechanical contact can also be realized by means of a plurality of wheels known from the prior art. By means of these wheels, the substrate of the detector can be made to travel on the inspection surface in a one-dimensional direction having a non-steerable axis. By using a support device of this type, in this case, the user of the detector can be assisted in carrying out the detection measurement accurately in one direction, for example, in a preferred direction.

[0019] Support devices that are different from each other are, for example, based on various functional mechanisms such as the use of wheels, sliding parts, brush edges, etc., or, for example, based on various materials such as the use of Teflon (Registered Trademark) sliding parts, nylon sliding parts, other plastic sliding parts, felt sliding parts, etc., and are each support devices.

[0020] The object to be inspected is often, but not only, a building material such as concrete, mortar, etc., and these building materials have a hard, uneven surface structure and are generally contaminated by dust, etc. Each of the above solutions provides, for example, the following advantages and disadvantages when movably supporting the substrate relative to the inspection surface of the object. The wheel enables a one-dimensional and smoothly guided movable support of the base relative to the inspection surface, in which case the wheel is generally subject to only minor wear. Depending on the choice of the wheel (e.g., size, material), such a type of support device is very sensitive to the unevenness of the inspection surface. Furthermore, the movement is limited to one dimension. The plastic sliding part enables a two-dimensional and movable (i.e., not guided in one dimension) support of the base relative to the inspection surface, in which case the sliding part is generally subject to increased wear on a rough or finely machined inspection surface. The felt sliding part enables a two-dimensional and movable (i.e., not guided in one dimension) support of the base relative to the inspection surface, in which case the sliding part is not at all suitable (the material wears out) on a rough or finely machined inspection surface, but the sliding part is treated very carefully on a smooth inspection surface.

[0021] According to the present invention, the detector is characterized by at least one first support device and at least one second support device provided for movably supporting the base relative to the inspection surface of the object respectively. In this case, the first support device and the second support device are different from each other.

[0022] In such a form, the detector is preferably combined with various support devices or various support devices are used, in which case, in particular, the respective advantages of the individual support devices can be appropriately selected by the user of the detector.

[0023] In one embodiment of the detector, the first support device and the second support device can be reversibly and removably arranged on the base.

[0024] "Reversibly removably arrangeable" means, in particular, that the support device is arranged such that the support device can be separated again from the detector, in particular the substrate, and thus removed, without destroying the detector, in particular the substrate. For example, such a form of reversibly removable arrangement can be effected by means of connections, insertions, snap-fittings, dockings, fixings, attachments or other forms of arrangement or equipment well known to the person skilled in the art. In one embodiment, the support device may be arranged in the form of an attachment using a shaped interface and / or coupling point provided, for example, for reversibly removably arranging the support device on the substrate. Such forms of interface and / or coupling point may have two mating parts, namely the support device and the substrate, in particular mutually adapted centering, locking projections, locking grooves, receptacles, stoppers, etc. In an alternative or additional embodiment, the support device can be arranged on the substrate of the detector using at least one magnet. Alternatively or additionally, the support device may be realized using at least one holding device, hook device, clamping or locking device for reversibly holding and removing the support device with respect to the substrate.

[0025] In this way, easy replacement of each support device is achieved, so that the detector can be provided with different support devices depending on the situation. Preferably, the support device can be selected, in particular removed, replaced or arranged by the user of the detector before performing the measurement. In this way, the detector according to the invention enables the provision of an auxiliary functionality that allows the detector to be used with a selectable support device instead of the movable support of the detector using a predefined support device. The selection of the support device is preferably effected by the selection of an attachment that is reversibly removably arranged on the substrate and is suitable for each situation.

[0026] Furthermore, in one embodiment of the detector, it is conceivable to arrange more than one support device on the substrate. In particular, it is also conceivable to arrange a plurality of support devices on the substrate one behind the other, in which case each respective support device is arranged in a reversibly removable manner in series connection to the already arranged support device.

[0027] In an alternative embodiment of the detector, a first support device is incorporated as a component of the substrate, in which case a second support device can be arranged in a reversibly removable manner on the substrate.

[0028] "Incorporated as a component" means in particular that the corresponding support device is not connected to the substrate in a reversibly removable manner, i.e. without being destroyed. This can be achieved, for example, by realizing an integral construction of the substrate and the support device or by arranging the support device fixedly on the substrate.

[0029] In such a form, an equally simple replacement of the support device is realized, in which case the first support device is pre-incorporated as a component of the substrate. Thereby, a basically simpler structure of the detector can be realized.

[0030] In an alternative embodiment of the detector, a first support device and a second support device are incorporated as components of the substrate.

[0031] For example, in such an embodiment of the detector, the first support device is fixedly incorporated as a component of the base body, while the second support device is foldable, in particular foldably openable and foldably closable, or movable, in particular pull-out movable and push-in movable. Optionally, the two support devices may be realized as foldable, in particular foldably openable and foldably closable, or movable, in particular pull-out movable and push-in movable. Such a foldable realization can be performed, for example, by means of a hinge. The movable realization can be realized, for example, in the form of a running device using a rolling bearing or a sliding bearing. In one embodiment, the second support device can be stored, in particular pushed in or pulled in, and withdrawn, in particular pulled out or foldably opened, in a housing, in particular in the base body. In such a form, a particularly compact detector can be realized in which the two support devices are pre-incorporated as components of the base body. Pull-outable or foldably openable, and push-inable or foldably closable means that the support device can be changed by a mechanism between at least two positional states, "folded open" and "folded closed" or "pulled out" and "pushed in". Between these positional states, they may be particularly clearly different.

[0032] In one embodiment, the first and / or the second support device is actuated manually by an operator of the detector or automatically by a control device of the detector, in particular in response to an input from the operator, to effect folding or movement.

[0033] In one embodiment of the detector, the second support device enables the substrate to be movably supported relative to the inspection surface of the object in at least one operating mode, whereas the first support device prevents the movable support of the substrate relative to the inspection surface of the object. This is achieved, for example, by arranging the second support device such that the distance between the substrate and the inspection surface is slightly increased, whereby the first support device no longer contacts the inspection surface and thus the support of the substrate with respect to the inspection surface becomes ineffective.

[0034] According to one embodiment of the detector, the first support device or the second support device has a brush edge for realizing a two-dimensional movement of the detector relative to the inspection surface.

[0035] The brush edge, as a support device, enables the substrate to be guided on the inspection surface at a constant distance without the inclination of the substrate and thus the detector device being caused by small irregularities of the inspection surface. The individual brush bristles of the brush edge guide the detector better horizontally on the inspection surface. The measurement accuracy depends significantly on the distance and inclination between the detector device and the inspection surface. Therefore, an improvement in measurement accuracy and a reduction in measurement error can be obtained in a structurally simple form. At the same time, the brush edge is either not exposed to wear or only very slightly exposed to wear even when the detector is frequently used on a rough surface. The brush edge, especially the individual brush bristles, elastically reacts to the friction generated by changing the position of the detector relative to the inspection surface by deforming the individual brush bristles. As a result, the brush bristles are either not exposed to wear or clearly only very slightly exposed to wear, so that the distance between the detector device and the inspection surface is kept constant over a long-term use of the device.

[0036] Furthermore, the user finds the use of the detector, particularly the repositioning on the inspection surface, to be particularly preferably tactile by using a brush edge for movably supporting the detector on the inspection surface. Thus, the detector can be slid or repositioned without using great force, and the unevenness of the inspection surface can be overcome or scanned without the detector stopping or tilting. The common sensation using a sliding part, such that the detector catches or rubs on the inspection surface, preferably does not occur. The noise generation that generally can occur on the inspection surface by sliding the detector is also smaller, and thus is felt to be more comfortable by the user. The rubbing noise that generally occurs when using a sliding part preferably does not occur.

[0037] In an alternative embodiment of the detector, the first support device or the second support device has a sliding part to realize a two-dimensional movement of the detector relative to the inspection surface.

[0038] The sliding part forms a bearing part of the support device, which is particularly simple and flexible. The sliding part is produced, for example, as a hard sliding part, for example in the form of plastic protrusions, or as a sliding part with optimized sliding and wear, for example Teflon (Registered Trademark) or a polymer such as nylon or felt. A support device of such a type enables the user to reposition the detector in two-dimensional directions in relation to the inspection surface in a structurally particularly simple and economically suitable form.

[0039] According to an alternative embodiment of the detector, the first support device or the second support device has at least one omnidirectional wheel, particularly a mecanum wheel or a ball bearing, to realize a two-dimensional movement of the detector relative to the inspection surface.

[0040] An omnidirectional wheel means that it enables the substrate to be movably supported in all directions in relation to the inspection surface without performing mechanical steering itself. In this case, the sliding surface of the wheel may consist of, for example, rollers, where the axis of rotation is positioned at a right angle to the axis of rotation of the main wheel. This allows the wheel to slide axially without friction. In contrast, for a mecanum wheel, the drum-shaped rollers arranged on the outer peripheral surface of the wheel are arranged at an angle to the main axis of the wheel. Optionally, the omnidirectional wheel may be realized using balls (ball rollers, ball bearings). In one embodiment of the detector, the first support device or the second support device has three, particularly four, such omnidirectional wheels of this type.

[0041] In an alternative embodiment of the detector, the first support device or the second support device has a plurality of rollers or wheels in order to realize a one-dimensional movement of the detector relative to the inspection surface.

[0042] The wheels or rollers, particularly four wheels or rollers, can realize the movable support of the detector in the one-dimensional direction in a particularly simple and economically advantageous manner. In this case, the one-dimensional direction is given by a perpendicular to the wheel axis or roller axis, which is positioned parallel to the inspection surface.

[0043] According to one embodiment of the detector, the detector has means for detecting the rotation of at least one wheel or roller, particularly by magnetic coupling and / or inductive coupling in terms of signal technology.

[0044] In this way, this means easily realizes a position sensor for detecting the position data of the substrate in relation to the inspection surface. A position sensor is in particular a sensor provided for outputting or transmitting the then particular relative position of the substrate with respect to the inspection surface. In this case, the current position is detected relative to the previous position or in particular absolutely in relation to at least one fixed reference point and output or transmitted as position data. This means is configured, for example, as an optical, mechanical or electromagnetic (in particular inductive) sensor, which sensor detects the movement and / or rotation of at least one wheel or roller in the operating state and converts it into an electrical signal. In particular, with a position sensor of such a type, the detection data can be evaluated depending on the actual position of the detector with respect to the inspection surface. For example, the measurement results can be displayed in the form of multi-dimensional, in particular two-dimensional, map information by means of position-dependent measurement and evaluation of the inspection surface.

[0045] Furthermore, a method for operating a hand-held detector provided with a substrate has been proposed, in which case in a first usage mode, the substrate is supported by a first support device in order to movably support the substrate relative to the inspection surface of the object, in a second usage mode, the substrate is supported by a second support device in order to movably support the substrate relative to the inspection surface of the object, wherein the first support device and the second support device are different from each other.

[0046] Finally, it should be pointed out that the theory of the present invention is not limited only to the first support device and the second support device, but can also be similarly applied to a plurality of second support devices. Thus, in one embodiment of the detector, the first support device may be firmly incorporated into the substrate of the detector, while various second support devices, for example a second support device having a sliding part, another second support device having wheels, and another second support device having omnidirectional wheels, may be arranged on the substrate as required.

Brief Description of the Drawings

[0047]

Figure 1a

Figure 1b

Figure 1c

Figure 1d

Figure 1e

Figure 2a

Figure 2b

Figure 3

DETAILED DESCRIPTION OF THE INVENTION

[0048] The present invention will be specifically described below using the embodiments shown in the drawings. The drawings, the specification, and the claims include combinations of many features. Those skilled in the art may consider these features individually in a suitable form or combine them in another meaningful combination. The same reference numerals in the drawings represent the same components.

[0049] FIG. 1 shows a schematic perspective view of a perspective view of one embodiment of a hand-held detector 10 according to the invention, which is here realized as a hand-held position measuring device by way of example. The detector 10 may also be realized as a moisture measuring device or a moisture detector in alternative embodiments.

[0050] As shown in FIG. 1a, the detector 10 has a housing 12, which simultaneously forms the base body 14 of the detector 10. The housing 12 surrounds all the components of the detector 10 that are necessary or effective for operating the detector 10. The handheld detector 10, in particular the base body 14, is held by hand by the user during a measurement operation by a movement freely performed by the user of the detector 10 and is guided onto the inspection surface 16 of the object 18 to be inspected. The mass of the handheld detector is less than 3 kg in one embodiment.

[0051] The detector 10 has a detecting device 20 (see the parts indicated by the dashed lines in FIGS. 1a, 1e, 3a and 3b), and this detecting device 20 is provided for detecting detection data, here in particular the position measurement data of a position measurement object hidden under the inspection surface (not shown in detail here). For this purpose, the detecting device 20 in the illustrated embodiment of the detector 10 particularly has an LCR antenna.

[0052] The detector 10 further has an input device configured as an operating element (not shown in detail here), and this input device is suitable for turning the detector 10 on and off and for starting a detection measurement. An output device (likewise not shown in detail here) is used in particular for the output and display of working parameters and / or evaluation results of the detection information. The components of the input device are connected to a control device (not shown in detail in the detector 10) for transmitting user input. The output device is particularly provided for displaying the detection information on a display. The output device is connected to the control device for transmitting measurement results or other information.

[0053] A control device, which particularly has an electronic control circuit and is not shown in detail here, is used to individually perform open-loop control and / or closed-loop control on the detector 10 and the detection device 20. For this purpose, the control device has a unit having a processor unit, a memory unit, and an operation program stored in this memory unit, which is not shown in detail here. Further, the control device is provided for evaluating the detection data of the detection device 20, that is, particularly the position measurement data here.

[0054] The detector 10 further has a handle 22 for carrying and guiding the carrying. The handle 22, the input device, and the output device are located on the housing side 24 of the detector 10, which generally faces the user when operating the detector 10.

[0055] To supply energy to the detector 10, the detector 10 has a notch 26, which is provided for receiving at least one energy accumulator independent of the power grid, particularly a battery or a rechargeable battery.

[0056] The detector 10 is designed to be placed on the object 18 to be inspected, particularly on the inspection surface 16 of the object 18, during the performance of the detection measurement (see FIGS. 1a or 1e). In order to stably place the detector 10 on the inspection surface 16 and to support the detector 10 movably relative to the inspection surface 16 in a relatively smooth manner, in the embodiment shown in FIG. 1, the detector 10 has a first support device 28 (see FIG. 1a) for movably supporting the base 14 relative to the inspection surface 16 of the object 18 and a second support device 30 (see FIG. 1b) for movably supporting the base 14 relative to the inspection surface 16 of the object 18. In this case, the first support device 28 and the second support device 30 are different from each other. Further, the detector 10 has another second support device 32, see FIG. 1 c reference, and another second support device 34, see FIG. 1d. The second support devices 30, 32, 34 are different from each other.

[0057] The first support device 28 of the detector 10, shown in FIG. 1a, is realized as a brush edge 28a provided on the base body 14 of the detector 10. In this case, the brush edge 28a is arranged on the side of the base body 14 facing the inspection surface 16 of the object 18 when performing the detection measurement (see particularly FIG. 1a). In this case, the brush edge 28a is realized in the form of a strip-shaped brush that is arranged to be at least partially continuously and linearly movable along the outer contour on the side of the base body 14 facing the inspection surface 16 of the object 18 when performing the detection measurement. In this case, the first support device 28 in the form of the brush edge 28a serves to realize a two-dimensional movement of the detector 10 relative to the inspection surface 16.

[0058] The second support devices 30, 32, 34 of the detector 10 shown in FIGS. 1b, 1c and 1d are each realized in the form of a fitting device or a fitting frame 38. Therefore, these second support devices 30, 32, 34 can be separated from the detector 10, particularly the base body 14, again and thus removed without destroying the detector 10, particularly the base body 14. In the illustrated embodiment, the base body 14 (see FIG. 1a) and the second support devices 30, 32, 34 (see FIGS. 1b, 1c, 1d) each have a specially shaped joint 36, and these joints 36 are provided to reversibly removably arrange the respective support devices 30, 32, 34 on the base body 14. The joint 36 has centering, locking protrusions, locking grooves, receiving portions and stoppers that are adapted to each other for the two mating parts of the support devices 30, 32, 34 and the base body 14 (not shown in detail here). Furthermore, the coupling device 36 has a holding device, a hook device, a clamping device or a locking device (not shown in detail) for reversibly holding and removing the support devices 30, 32, 34 on the base body 14.

[0059] The second support device 30 shown in Fig. 1b has a plurality of wheels 30a, here in particular four wheels 30a. The second support device 30 with wheels 30a is used to realize a one-dimensional movement of the detector 10 relative to the inspection surface 16 along a one-dimensional priority direction (extending perpendicular to the wheel axis on the inspection surface 16). Furthermore, these wheels 30a enable a particularly smooth support of the base body 14 relative to the inspection surface 16, in which case the wheels 30a are basically only exposed to very little wear.

[0060] Another second support device 32 shown in Fig. 1c has a plurality of sliding parts 32a, here in particular four sliding parts 32a. The sliding parts 32a of the support device 32 are used to realize a two-dimensional movement of the detector 10 relative to the inspection surface 16 and may be realized from a polymer such as Teflon (Registered Trademark) or nylon or felt with optimized sliding and wear.

[0061] Another second support device 34 shown in Fig. 1d has a plurality of omnidirectional wheels 34a, here in particular four omnidirectional wheels 34a. The omnidirectional wheels 34a of the support device 34 are used to realize a two-dimensional movement of the detector 10 relative to the inspection surface 16. In this case, the omnidirectional wheels 34a are realized in the form of ball bearings (balls) embedded in a fitting frame 38 that can support the base body 14 movably in all directions in relation to the inspection surface 16.

[0062] Figure 1e shows a detector 10 with a second support device 30 having a plurality of wheels 30a disposed on a substrate 14. In the state of the second support device 30 disposed on the substrate 14, the second support device 30, particularly the plurality of wheels 30a, is only used to support the substrate 14, while the function of the first support device 28 has lost its effectiveness. In the illustrated embodiment, this is achieved by the arrangement of the second support device 30 slightly increasing the distance between the inspection surface 16 and the substrate 14, thereby causing the first support device 28 to no longer contact the inspection surface 16. Thus, the movable support is realized only by the second support device 30.

[0063] All the support devices 28, 30, 32, 34 shown in the figures can guide or move the substrate 14 of the detector 10 and thus the detecting device 20 while maintaining a certain distance on the inspection surface 16 during the detection operation. Position measurement objects (not shown in detail here) arranged within the range below the inspection surface 16, such as exteriors, circuits, pipes, etc., and in principle also the moisture within the object 18, are detected by the detecting device 20 of the detector 10 and provided to the user of the detector 10 using an output device.

[0064] Figures 2a and 2b show alternative embodiments of the detector 10, in which the first support device 28 and the second support device 30 are incorporated as components of the substrate 14. In this case, the first support device 28 of the detector 10 is fixedly incorporated as a component of the substrate 14 and is realized here as a brush edge 28a. In contrast, the second support device 30 is made travelable, particularly pullable and pushable, by a mechanical adjustment device 40 (using, for example, rolling bearings or sliding bearings) not shown in detail. In this case, the second support device 30 can be changed between two position states, "pulled out" and "pushed in", as shown in Figure 2a (pushed in) or Figure 2b (pulled out). In the illustrated embodiment of the detector 10, the second support device 30 can be manually pushed in or pulled out by the operator of the detector 10. In particular, the detector 10 is in the pulled-out state of the second support device 30 (Figure2 In case b), it is supported only by the second support device 30, while the function of the first support device 28 is invalid. The second support device 30 shown in FIGS. 2a and 2b has a plurality of wheels 30a, here specifically four wheels 30a. The second support device 30 having a plurality of wheels 30a is (similar to the second support device 30 in FIG. 1b) used to realize a one-dimensional movement of the detector 10 along a one-dimensional priority direction (extending perpendicular to the wheel axis on the inspection surface 16) relative to the inspection surface 16.

[0065] The detector shown in FIG. 1 and / or FIG. 2 further has means 42 for detecting the rotation of the wheels 30a, in particular by magnetic coupling and / or inductive coupling, when the second support device 30 is arranged. In such a manner, the position of the base body 14 relative to the inspection surface 16 can be detected during its movement.

[0066] Next, FIG. 3 proposes a method according to the invention for operating a hand-held detector 10 having a base body 14. In this case, in the first use mode 100, the base body 14 is supported by the first support device 28 to movably support the base body 14 relative to the inspection surface 16 of the object 18. In the second use mode 200, the base body 14 is supported by the second support devices 30, 32, 34 to movably support the base body 14 relative to the inspection surface 16 of the object 18. In this case, the first support device 28 and the second support devices 30, 32, 34 are different from each other.

Explanation of reference numerals

[0067] 10 Hand-held detector 12 Housing 14 Base body 16 Inspection surface 18 Object 20 Detection device 22 Handle 24 Housing side 26 Notch 28 First support device 28a Brush edge 30 Second support device 30a Wheel 32a Sliding part 32, 34 Another second support device 34a Omnidirectional wheel 38 Fitting device or fitting frame 36 Joint point 40 Adjusting device 42 Means for detecting the rotation of the wheel 30a 100 First operation mode, first usage mode 200 Second operation mode, second usage mode

Claims

Claim 1 A handheld detector (10) comprising at least one base body (14) having at least one detection device (20), characterized in that it is provided with at least one first support device (28) for movably supporting the base body (14) relative to the inspection surface (16) of an object (18) to be inspected, and a second support device (30, 32, 34) for movably supporting the base body (14) relative to the inspection surface (16) of the object (18), the second support device (30, 32, 34) has the shape of a fitting frame and is provided with contact parts (30a, 32a, 34a) for realizing one-dimensional or two-dimensional movement of the detector (10) relative to the inspection surface (16), the first support device (28) is arranged inside the fitting frame of the second support device (30, 32, 34), the first support device (28) and the second support device (30, 32, 34) are reversibly and removably arranged on the base body (14), characterized in that it is a handheld detector (10). Claim 2 The handheld detector (10) according to claim 1, characterized in that the second support device (30, 32, 34) enables the base body (14) to be movably supported relative to the inspection surface (16) of the object (18) in at least one operating mode (200), and the movable support of the base body (14) relative to the inspection surface (16) of the object (18) by the first support device (28) is prevented. Claim 3 The handheld detector (10) according to claim 1 or 2, characterized in that the first support device (28) has a brush edge (28a) for realizing two-dimensional movement of the detector (10) relative to the inspection surface (16). Claim 4 The handheld detector (10) according to any one of claims 1 to 3, characterized in that the second support device (30, 32, 34) has a sliding part (32a) for realizing two-dimensional movement of the detector (10) relative to the inspection surface (16). Claim 5 The handheld geophone (10) according to any one of claims 1 to 3, characterized in that the second support device (30, 32, 34) has at least one omnidirectional wheel (34a) for realizing a two-dimensional movement of the geophone (10) relative to the inspection surface (16).

6. The handheld geophone (10) according to any one of claims 1 to 3, characterized in that the second support device (30, 32, 34) has a plurality of wheels (30a) for realizing a one-dimensional movement of the geophone (10) relative to the inspection surface (16).

7. The handheld geophone (10) according to claim 6, characterized in that the geophone (10) has means (42) for detecting the rotation of at least one wheel (30a) in a signal-technical manner.

8. The handheld geophone (10) according to any one of claims 1 to 7, characterized in that it is configured as a position measuring device for measuring the position of an object in the object (18) to be inspected.

9. The handheld geophone (10) according to any one of claims 1 to 8, characterized in that it is configured as a moisture measuring device for determining the moisture inside and / or outside the object (18) to be inspected.

10. In a method for operating a handheld geophone (10) provided with a base body (14) according to any one of claims 1 to 9, In a first operating mode (100), the base body (14) is supported by a first support device (28) in order to movably support the base body (14) relative to the inspection surface (16) of the object (18). In a second operating mode (200), the base body (14) is supported by a second support device (30, 32, 34) in order to movably support the base body (14) relative to the inspection surface (16) of the object (18). A method for operating a handheld geophone (10), characterized in that the first support device (28) and the second support device (30, 32, 34) are different from each other.

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