Detector for building construction and use method thereof

Abstract

The invention relates to the field of building construction detection, and discloses a detector for building construction and a use method thereof.The detector comprises a detection frame, a detection mechanism is installed in the detection frame, the detection mechanism is used for detecting the perpendicularity of a building wall surface and installed on a lifting module, the lifting mechanism is arranged on the detection frame, and the lifting module is connected with the detection frame. The lifting mechanism comprises a lead screw, a lifting mechanism and a detection mechanism, wherein the lead screw is vertically and rotatably mounted on the detection frame; the driving part is connected with one end, extending out of the detection frame, of the screw rod and is used for driving the screw rod to rotate; the polished rod is vertically fixed on the detection frame, and the polished rod and the screw rod are arranged in parallel; the lifting box is arranged on the polished rod and the lead screw in a sleeving mode, and the lifting box is in spiral transmission connection with the lead screw. The detection mechanism is driven by the lifting mechanism to change the height, multi-area measurement is achieved, and the measurement accuracy is improved.

Description

Technical Field

[0001] This invention relates to the field of building construction inspection, and more specifically to a detector for building construction and its usage method. Background Technology

[0002] Building construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of structures, or the process of turning the lines on design drawings into a physical object at a designated location. It includes foundation construction, main structure construction, roofing construction, and decoration construction. Verticality inspection is an essential part of building engineering inspection. If two walls are not perpendicular, it will affect the quality of the project. Verticality inspection is mainly carried out using a verticality detector.

[0003] Chinese patent CN202021846787.0 discloses a verticality testing device for quality inspection of building engineering, including a base, a support seat, a vertical plate, a top plate, a gear box, a throttle, a movable rod, a first horizontal bar, a circular contact, a second horizontal bar, a counterweight, a worm gear, a fixed ring, a measuring baseline, a threaded rod, a worm, a coil ring, a sliding block, a spring box, and a limiting block. The support seat is installed at the upper middle position of the base, and the upper end of the support seat is rotatably connected to the threaded rod. The sliding block is sleeved on the threaded rod, and the threaded rod and the sliding block are slidably connected. The top plate is installed at the end of the threaded rod away from the support seat.

[0004] The aforementioned technical solution uses a first and second horizontal bar positioned opposite each other. When checking the verticality of a wall, a weight falls to taut the measuring baseline. The wall's verticality is detected by whether the measuring baseline deviates between the first and second horizontal bars, thus improving work efficiency. However, this method of determining verticality based on baseline deviation only indicates the presence of an error at a specific point in the wall's verticality, but it cannot directly determine the magnitude of the error. Furthermore, the deviation angle can be too small for workers to detect visually with the naked eye. Summary of the Invention

[0005] The purpose of this invention is to provide a detector for building construction and its usage method, thereby solving the above-mentioned technical problems.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A detector for building construction includes a detection frame, within which a detection mechanism is installed for detecting the verticality of a building wall. The detection mechanism is mounted on a lifting module, which is disposed on the detection frame and is used to change the detection area of ​​the detection mechanism.

[0008] As a further technical solution, the lifting mechanism includes:

[0009] A lead screw, which is vertically and rotatably mounted on the testing frame;

[0010] A driving component is connected to one end of the lead screw extending out of the detection frame, and is used to drive the lead screw to rotate;

[0011] A light rod, which is vertically fixed on the detection frame and is arranged parallel to the lead screw;

[0012] A lifting box is sleeved on the guide rod and the lead screw, and the lifting box is connected to the lead screw via a helical drive.

[0013] The above technical solution provides a specific structure for the lifting mechanism, enabling the detection mechanism to change the detection area.

[0014] As a further technical solution, testing institutions include:

[0015] The baseline, the top end of which is ball-hinged to the inner top surface of the detection frame;

[0016] A counterweight, which is fixedly connected to the bottom end of the baseline;

[0017] The detector rod is provided in two parts, and a wire groove is provided through the two detector rods at the same position, the wire groove being for the baseline to pass through;

[0018] The probe head and the probe rod are each fixedly equipped with a spherical probe head at one end away from the lifting box, and the other end is slidably connected to a slot opened on the side of the lifting box. A spring is installed in the slot, and a pressure sensor is provided on the bottom wall of the slot.

[0019] The display panel is electrically connected to the pressure sensor.

[0020] The above technical solution provides a specific structure for the testing mechanism, which uses a pressure sensor and baseline skew to comprehensively detect the verticality of the wall surface under test.

[0021] As a further technical solution, the detection mechanism also includes an amplification component, which is used to amplify the skew action of the baseline.

[0022] As a further technical solution, the amplification component includes:

[0023] An auxiliary line is provided, which is parallel to the baseline, and the top end of the auxiliary line is ball-hinged to the inner top surface of the detection frame.

[0024] An auxiliary hammer, which is fixed to the bottom end of the auxiliary line;

[0025] Two thin rods are provided. The auxiliary line and the baseline are connected by the thin rods. The thin rods are hinged to the frame near the baseline. The frame is fixed to the side wall of the lifting box.

[0026] The above technical solution provides a specific mechanism for amplifying components, which uses a thin rod as a lever and leverages the principle of leverage to amplify the degree of baseline deviation, so that the inspectors can observe it more intuitively.

[0027] As a further technical solution, the amplification component includes:

[0028] The projection surface is a vertically fixed plate on the detection frame.

[0029] A baseline is fixedly set on the upright plate and coincides with the initial state of the baseline; the baseline is set to be colored.

[0030] A projection lamp is mounted on the detection frame and positioned opposite the projection surface. The projection lamp projects the baseline onto the upright plate. The presence or absence of an angle between the projection of the baseline and the reference line is used to determine whether the baseline is skewed.

[0031] The above technical solution provides a specific structure for the magnification component. By projecting the baseline onto the vertical plate and comparing it with the baseline originally drawn on the vertical plate, it is possible to more intuitively and quickly determine whether the verticality of the wall meets the requirements.

[0032] As a further technical solution, rings are fixedly provided at both ends of the thin rod, and the two rings are respectively sleeved on the baseline and the auxiliary line.

[0033] As a further technical solution, two lifting boxes are provided, and a spacing adjustment component is connected between the two lifting boxes. The spacing adjustment component is used to change the height between the two lifting boxes.

[0034] As a further technical solution, the spacing adjustment component includes:

[0035] A fixing plate, one end of which is fixed to the top surface of the lifting box located below;

[0036] A cam, which is rotatably mounted on the fixed plate;

[0037] A rotating shaft, one end of which is fixed to the side of the cam, and the other end of which is fixed to a gear;

[0038] A limiting slide rail is vertically fixed to the side wall of the detection frame. One of the inner surfaces of the limiting slide rail is provided with teeth, and the gear meshes with the teeth.

[0039] The above technical solution provides a specific mechanism for the spacing adjustment component. When the lifting mechanism changes the detection area, the meshing transmission of the gear teeth is used to convert the periodic rotation of the cam, so that the distance between the two lifting boxes becomes dynamically adjustable, making the detection results more objective and accurate.

[0040] A method for using a detector in building construction, the specific steps of which are as follows:

[0041] S1: After placing the testing frame parallel to the ground, move the entire testing frame toward the wall to be tested until the probes at the ends of the two probe rods contact the wall; by observing whether the baseline between the two probe rods is skewed, determine whether the verticality of the wall meets the standard; then display the values ​​of the two pressure sensors on the display panel, and determine the magnitude of the error in the verticality of the wall based on the deviation between the two values.

[0042] S2: The lead screw is driven to rotate by the drive component, and the lead screw and the lifting box undergo helical transmission, thereby adjusting the height of the lifting box in the detection frame and obtaining multiple detection results;

[0043] S3: During the testing process, the amplification component amplifies the baseline skew, allowing the testing personnel to view it directly.

[0044] The beneficial effects of this invention are:

[0045] (1) The present invention uses a detection mechanism and a lifting mechanism to detect the verticality of the wall surface, and avoids the problem of judgment error caused by the detection personnel being unable to detect slight changes in the baseline to the greatest extent.

[0046] (2) By setting up an amplification component, when the baseline is slightly tilted, one of the thin rods swings under the action of a lever. Since the hinge point of the thin rod is close to the baseline, the tilt of the baseline will be amplified to the auxiliary line through the lever principle. At this time, the inspector can quickly determine that the wall is tilted and the verticality is not up to standard by directly observing the auxiliary line behind.

[0047] (3) This invention sets a limiting slide rail on the right side wall of the testing frame and sets a tooth on one inner wall of the limiting slide rail. During the process of the lifting mechanism driving the two lifting boxes to lift synchronously, the lifting boxes drive the cam, rotating shaft and gear to move up and down. The gear meshes with the tooth during the up and down movement. Under the gear and rack transmission, the rotating shaft and cam rotate circumferentially. Since the position of the upper lifting box corresponding to the lead screw is set as a through hole, the cam will intermittently push the upper lifting box to move up and down when rotating circumferentially. Thus, the distance between the upper and lower lifting boxes is dynamically changing, so that the testing mechanism can perform dynamic testing on the wall within the height range of the testing frame, making the wall testing more comprehensive and random, and the testing results more accurate. Attached Figure Description

[0048] The invention will now be further described with reference to the accompanying drawings.

[0049] Figure 1 This is an overall schematic diagram of the present invention;

[0050] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0051] Figure 3 This is a schematic diagram of the internal structure of the lifting box in this invention;

[0052] Figure 4 This is a partial three-dimensional structural schematic diagram of the spacing adjustment component in this invention;

[0053] Figure 5 This is a schematic diagram of one embodiment of the amplification component in the present invention;

[0054] Figure 6 for Figure 5 A three-dimensional structural diagram from another perspective;

[0055] Figure 7 This is a flowchart of the method of using the present invention.

[0056] Figure Descriptions: 1. Detection frame; 2. Detection mechanism; 21. Baseline; 22. Counterweight; 23. Detector rod; 24. Detector head; 25. Display panel; 26. Magnifying component; 261. Auxiliary line; 262. Auxiliary hammer; 263. Thin rod; 264. Frame; 265. Ring; 266. Vertical plate; 267. Baseline; 268. Projection lamp; 27. Cable tray; 3. Lifting mechanism; 31. Lead screw; 32. Drive component; 33. Light rod; 34. Lifting box; 341. Slot; 342. Spring; 343. Pressure sensor; 4. Spacing adjustment component; 41. Fixing plate; 42. Cam; 43. Rotating shaft; 44. Gear; 45. Limiting slide rail; 46. Gear. Detailed Implementation

[0057] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0058] Please see Figure 1-6 As shown, the present invention is a detector used in building construction.

[0059] Example 1:

[0060] The system includes a testing frame 1, which houses a testing mechanism 2 for detecting the verticality of building walls. The testing mechanism 2 is mounted on a lifting module, and a lifting mechanism 3 is mounted on the testing frame 1 for changing the area detected by the testing mechanism 2.

[0061] The lifting mechanism 3 includes:

[0062] A lead screw 31 is vertically and rotatably mounted on the detection frame 1;

[0063] The driving component 32 is connected to one end of the lead screw 31 that extends out of the detection frame 1, and is used to drive the lead screw 31 to rotate; the driving component 32 can be a servo motor or a hand-cranked wheel.

[0064] The light rod 33 is vertically fixed on the detection frame 1, and the light rod 33 is arranged parallel to the lead screw 31;

[0065] The lifting box 34 is sleeved on the optical rod 33 and the lead screw 31, and the lifting box 34 is connected to the lead screw 31 by a screw drive.

[0066] Testing agency 2 includes:

[0067] Baseline 21, the top end of which is ball-hinged to the inner top surface of the detection frame 1;

[0068] A counterweight 22 is fixedly connected to the bottom end of the baseline 21;

[0069] The detector rod 23 is provided in two, and a wire groove 27 is provided through the same position of the two detector rods 23, the wire groove 27 allowing the baseline 21 to pass through;

[0070] The probe head 24 and the probe rod 23 are both fixedly provided with a spherical probe head 24 at one end away from the lifting box 34, and the other end is slidably connected to a slot 341 opened on the side of the lifting box 34. A spring 342 is installed in the slot 341, and a pressure sensor 343 is provided on the bottom wall of the slot 341.

[0071] Display panel 25, which is electrically connected to pressure sensor 343.

[0072] In this embodiment, the verticality of the wall is detected by setting up the detection mechanism 2 and the lifting mechanism 3 in cooperation, and the problem of judgment error caused by the detection personnel not being able to detect the slight change in the baseline 21 is avoided to the greatest extent.

[0073] Specifically, in use, the bottom surface of the testing frame 1 is first placed horizontally, which can be placed on the ground or a platform. Then, the testing frame 1 is pushed as a whole towards the wall to be tested until the probe head 24 at the ends of the two probe rods 23 contacts the wall to be tested. If the wall is tilted, the two probe heads 24 will have different feed distances in the slot 341 of the lifting box 34. For example, when the wall is tilted to the right, the upper probe rod 23 will feed a greater distance than the lower probe rod 23. Therefore, the baseline 21 between the two probe rods 23 will be tilted to the right, which can be used to determine that the verticality of the wall is not up to standard.

[0074] To enhance the accuracy of wall verticality judgment, this invention also includes a lifting mechanism 3. A drive component 32 drives a lead screw 31 to rotate, which in turn moves the lifting box 34 and the detection mechanism 2 up and down. This enables verticality detection of multiple areas of the wall, and by combining various detection results, it can more accurately determine whether the wall's verticality is acceptable. Furthermore, to prevent situations where a small degree of wall tilt results in a small tilt angle on the baseline 21 that is difficult to observe visually, this invention includes a pressure sensor 343 within the slot 341. Since the wall tilt causes differences in the feed distance of the two probes 23 within the slot 341, the compression of the spring 342 differs, resulting in different pressure on the pressure sensor 343. This leads to different values ​​displayed on the display panel 25. Therefore, by combining the differences between the tilt of the baseline 21 and the values ​​displayed on the display panel 25, the inspector can more quickly identify minor wall tilt conditions, ensuring the accuracy of wall verticality detection.

[0075] This embodiment provides an implementation with only one lifting box 34, and the lifting box 34 has two slots 341, one above the other.

[0076] Example 2:

[0077] The detection mechanism 2 also includes an amplification component 26, which is used to amplify the skew action of the baseline 21.

[0078] The amplification component 26 includes:

[0079] Auxiliary line 261, which is set parallel to the baseline 21, and the top end of the auxiliary line 261 is ball-hinged to the inner top surface of the detection frame 1;

[0080] Auxiliary hammer 262, which is fixed to the bottom end of the auxiliary line 261;

[0081] Two thin rods 263 are provided. The auxiliary line 261 and the baseline 21 are connected by thin rods 263. The thin rods 263 are hinged to the frame 264 near the baseline 21. The frame 264 is fixed to the side wall of the lifting box 34.

[0082] The thin rod 263 has rings 265 fixedly installed at both ends, and the two rings 265 are respectively sleeved on the baseline 21 and the auxiliary line 261.

[0083] In this embodiment, in order to amplify the slight tilt of the baseline 21 so that the inspector can quickly observe it, the present invention provides an amplification component 26. Specifically, when the baseline 21 tilts slightly, one of the thin rods 263 swings under the action of a lever. Since the hinge point of the thin rod 263 is close to the baseline 21, the tilt of the baseline 21 will be amplified to the auxiliary line 261 through the lever principle. At this time, the inspector can directly observe the auxiliary line 261 behind and quickly determine that the wall is tilted and the verticality is not up to standard.

[0084] Example 3:

[0085] The amplification component 26 includes:

[0086] The projection surface is a vertically fixed plate 266 on the detection frame 1, which serves as the projection surface.

[0087] A baseline 267 is fixedly mounted on the upright plate 266 and coincides with the baseline 21 in its initial state; the baseline 267 is colored.

[0088] Projection lamp 268 is mounted on the detection frame 1 and is positioned opposite to the projection surface. The projection lamp 268 projects the baseline 21 onto the upright plate 266. The presence or absence of an angle between the projection of the baseline 21 and the reference line 267 is used to determine whether the baseline 21 is skewed.

[0089] In this embodiment, another specific structure of the magnifying component 26 is given. The projection lamp 268 shines light on the baseline 21, so that the baseline 21 is projected onto the rear upright plate 266. As long as the vertical reference line 267 on the upright plate 266 coincides with the baseline 21, the verticality of the wall at that point is marked. If there is an angle between the projection of the baseline 21 and the reference line 267, it means that the verticality of the wall does not meet the requirements. By comparing the projection of the reference line 267 and the projection of the baseline 21 during detection, the inspector can more intuitively observe the change in the inclination of the baseline 21, reduce the difficulty of judging the wall inclination result, and improve the efficiency of wall detection. The colored reference line 267 is more obvious and easier to judge. Furthermore, the degree of wall inclination can be calculated based on the size of the angle. The specific calculation process is existing technology and will not be described in detail.

[0090] Example 4:

[0091] Two lifting boxes 34 are provided, and a spacing adjustment component 4 is connected between the two lifting boxes 34. The spacing adjustment component 4 is used to change the height between the two lifting boxes 34. The spacing adjustment component 4 includes:

[0092] A fixing plate 41, one end of which is fixed to the top surface of the lifting box 34 located below;

[0093] Cam 42, which is rotatably mounted on the fixed plate 41;

[0094] A rotating shaft 43, one end of which is fixed to the side of the cam 42, and the other end of which is fixed to a gear 44;

[0095] A limiting slide rail 45 is vertically fixed on the side wall of the detection frame 1. A tooth 46 is provided on one of the inner sides of the limiting slide rail 45, and the gear 44 meshes with the tooth 46.

[0096] In this embodiment, two lifting boxes 34 are provided, each with a slot 341. The difference from embodiment 1 is that the distance between the two lifting boxes 34 is dynamically changing. Specifically, a limiting slide rail 45 is provided on the right side wall of the detection frame 1, and a toothed part 46 is provided on one inner wall of the limiting slide rail 45. During the synchronous lifting and lowering of the two lifting boxes 34 driven by the lifting mechanism 3, the lifting boxes 34 drive the cam 42, the rotating shaft 43 and the gear 44 to move up and down. The gear 44 meshes with the toothed part 46 during the up and down movement. Under the rack and pinion transmission of the gear 44, the rotating shaft 43 and the cam 42 rotate circumferentially. Since the upper lifting box 34 is provided with a through hole at the position corresponding to the lead screw 31, the cam 42 will intermittently push the upper lifting box 34 to move up and down when rotating circumferentially. Thus, the distance between the upper and lower lifting boxes 34 is dynamically changing, so that the detection mechanism 2 can perform dynamic detection on the wall within the height range of the detection frame 1, making the wall detection more comprehensive and random, and the detection results more accurate.

[0097] like Figure 7 As shown, a method for using a detector in building construction is described, with the following specific steps:

[0098] S1: After placing the testing frame 1 parallel to the ground, move the entire testing frame 1 toward the wall to be tested until the probe heads 24 at the ends of the two probe rods 23 contact the wall; by observing whether the baseline 21 between the two probe rods is skewed, determine whether the verticality of the wall meets the standard; then display the values ​​of the two pressure sensors 343 on the display panel 25, and determine the magnitude of the error in the verticality of the wall based on the deviation between the two values;

[0099] S2: The lead screw 31 is driven to rotate by the drive component 32. The lead screw 31 and the lifting box 34 are screwed together, thereby adjusting the height of the lifting box 34 in the detection frame 1 and obtaining multiple detection results.

[0100] S3: During the testing process, the amplification component 26 is activated to amplify the skew action of the baseline 21, allowing the testing personnel to view it directly.

[0101] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A detector for building construction, comprising a detector frame (1), characterized in that, The detection frame (1) is equipped with a detection mechanism (2), which is used to detect the verticality of the building wall. The detection mechanism (2) is installed on the lifting module. The lifting mechanism (3) is set on the detection frame (1) and is used to change the area detected by the detection mechanism (2).

2. The detector for building construction according to claim 1, characterized in that, The lifting mechanism (3) includes: A lead screw (31) is vertically and rotatably mounted on the detection frame (1); A driving component (32) is connected to one end of the lead screw (31) that extends out of the detection frame (1) and is used to drive the lead screw (31) to rotate. A light rod (33) is vertically fixed on the detection frame (1), and the light rod (33) is arranged parallel to the lead screw (31); The lifting box (34) is sleeved on the light rod (33) and the lead screw (31), and the lifting box (34) is connected to the lead screw (31) by a screw drive.

3. The detector for building construction according to claim 2, characterized in that, Testing institutions (2) include: Baseline (21), the top end of which is ball-hinged to the inner top surface of the detection frame (1); A counterweight (22) is fixedly connected to the bottom end of the baseline (21); The probe rod (23) is provided in two, and a wire groove (27) is provided through the two probe rods (23) at the same position, and the wire groove (27) allows the baseline (21) to pass through; The probe (24) and the probe rod (23) are both fixedly provided with a spherical probe (24) at one end away from the lifting box (34), and the other end is slidably connected to a slot (341) opened on the side of the lifting box (34). A spring (342) is installed in the slot (341), and a pressure sensor (343) is provided on the bottom wall of the slot (341). The display panel (25) is electrically connected to the pressure sensor (343).

4. The detector for building construction according to claim 3, characterized in that, The detection mechanism (2) also includes an amplification component (26) for amplifying the skew action of the baseline (21).

5. The detector for building construction according to claim 4, characterized in that, The amplification component (26) includes: An auxiliary line (261) is provided parallel to the baseline (21), and the top end of the auxiliary line (261) is ball-hinged to the inner top surface of the detection frame (1). An auxiliary hammer (262) is fixed to the bottom end of the auxiliary line (261); Two thin rods (263) are provided. The auxiliary line (261) is connected to the baseline (21) through the thin rods (263). The thin rods (263) are hinged to the frame (264) near the baseline (21). The frame (264) is fixed to the side wall of the lifting box (34).

6. The detector for building construction according to claim 4, characterized in that, The amplification component (26) includes: The projection surface is provided with a vertical plate (266) fixed on the detection frame (1), and the vertical plate (266) serves as the projection surface. A baseline (267) is fixedly mounted on the upright plate (266) and coincides with the baseline (21) in its initial state; the baseline (267) is colored. Projection lamp (268) is installed on the detection frame (1) and is set opposite to the projection surface. The projection lamp (268) projects the baseline (21) onto the upright plate (266). The baseline (21) is determined to be skewed based on whether there is an angle between the projection of the baseline (21) and the reference line (267).

7. The detector for building construction according to claim 5, characterized in that, The thin rod (263) has rings (265) fixedly installed at both ends, and the two rings (265) are respectively sleeved on the baseline (21) and the auxiliary line (261).

8. The detector for building construction according to claim 2, characterized in that, Two lifting boxes (34) are provided, and a spacing adjustment component (4) is connected between the two lifting boxes (34). The spacing adjustment component (4) is used to change the height between the two lifting boxes (34).

9. The detector for building construction according to claim 8, characterized in that, The spacing adjustment component (4) includes: A fixing plate (41) is fixed at one end to the top surface of the lifting box (34) located below; Cam (42), which is rotatably mounted on the fixed plate (41); A rotating shaft (43) is fixed at one end to the side of the cam (42) and a gear (44) is fixed at the other end. A limiting slide rail (45) is vertically fixed on the side wall of the detection frame (1). A tooth (46) is provided on one of the inner sides of the limiting slide rail (45), and the gear (44) meshes with the tooth (46).

10. A method of using a detector for building construction, the method of use being applicable to the detector according to any one of claims 1-9, characterized in that, The specific steps are as follows: S1: After placing the testing frame (1) parallel to the ground, move the testing frame (1) as a whole toward the wall to be tested until the probe head (24) at the end of the two probe rods (23) contacts the wall; by observing whether the baseline (21) between the two probe rods is skewed, determine whether the verticality of the wall meets the standard; then display the values ​​of the two pressure sensors (343) on the display panel (25), and determine the error of the wall verticality based on the deviation between the two values; S2: Drive the lead screw (31) to rotate through the drive component (32), and the lead screw (31) and the lifting box (34) will undergo helical transmission, thereby adjusting the height of the lifting box (34) in the detection frame (1) and obtaining multiple detection results; S3: During the detection process, the amplification component (26) is used to amplify the skew action of the baseline (21) so that the detection personnel can directly observe it.

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