84results about "Weighing apparatus using radiation" patented technology

A method of determining a parameter of an object using penetrating radiation such as X-rays. The parameter of the object could be weight or mass or volume. The method comprises the step of passing the penetrating radiation through the object; determining a first value derived from the total energy of penetrating radiation absorbed by the object; determining a second value related to the mean energy per unit area of penetrating radiation absorbed by the object and determining the parameter from the first and second values. An algorithm representing a proportionality relationship is derived from the first and second value. The parameter is determined by establishing an exponential relationship to an amount derived from the algorithm.

A fill level measurement device for determining a topology of a filling material surface is provided, including an antenna apparatus including an array of radiator elements and a rotatable mount configured to rotate the antenna apparatus about an axis that is in parallel with the array, such that a plurality of emission angles of the antenna apparatus are electronically and mechanically settable relative to the filling material surface without local overscanning occurring.

The invention relates to a device and a method for determining the weight of product (2), in particular a pharmaceutical product, which is located in a container (3). The device comprises at least one x-ray source (28), which produces a radiation path (18), for passing radiation through the container (3), and a sensor (14), which detects the radiation of the container (3) through which radiation is passed in the form of an image (12), wherein an evaluating apparatus (14), is provided, which divides the image (12) of the container (3) through which radiation is passed into at least one evaluation region (21) in which there is no product (2).

The invention discloses a vehicle dynamic weighing system and a monitoring method thereof. It includes a light source unit for providing broadband; a dynamic load cell for collecting dynamic signals; the light source unit enters the dynamic load cell through an optical coupler formed by an optical circulator unit and an optical switch; it is used for signal processing of the dynamic load cell A unit; a detector array module and an array grating waveguide module are arranged between the signal processing unit and the optical circulator unit; a temperature control module for controlling the temperature of the grating in the array grating waveguide module. The present invention obtains the weight and speed information of vehicles passing through and the information on the number of axles through the array grating waveguide module, conductive communication optical cable, dynamic weighing sensor, grating signal demodulation module, and signal processing and analysis module; Detection, with high integration, small size, and sensitive detection, can be used for real-time overrun detection of overloaded vehicles in the field of highway and railway transportation.

An x-ray inspection apparatus includes a sample image obtaining unit, an ideal curve generating unit, a curve adjustment unit, and a mass estimation unit as a function block generated by a control computer. The sample image obtaining unit obtains 10 x-ray transmission images of sample inspected products each of whose mass is known in advance. The ideal curve generating unit generates a table based on a formula that indicates a relationship between the brightness of an area included in the x-ray transmission images and the estimated mass of the area. The curve adjustment unit refers to the input actual mass of each x-ray transmission image and adjusts the table such that the estimated mass approximates the actual mass. The mass estimation unit determines the estimated mass per unit area based on the post-adjusted table and adds up these masses to determine the total estimated mass of the product.

The invention relates to a weighing device and weighing method based on modal frequency of a cantilever beam. The device comprises a tungsten halogen lamp light source module, a Michelson interferometer module, a two-dimensional spectrograph module, a cantilever beam module and a computer. The invention provides a structure modal analysis method that is high in efficiency and accuracy, non-contact, lossless and high in resolution ratio and does not introduce additional weight on the basis of learning and research on vibration detection and modal analysis of a light thin-wall structure piece; by using the method, real-time modal analysis can be performed on the beam structure without knowing the information of a shock excitation input signal, and weighing can be implemented without knowingthe shock excitation input signal.

The invention provides systems and methods for measuring the mass of a substance. In one method, energy is applied to a substance and a response resulting from the application of energy as measured. The mass of the substance is then determined based at least in part on the measured response.

The present invention relates to a method for measuring the weight of a passivation coating composition on a moving substrate with minimal interruption. The method of present invention is especially useful for effective quality control in an industrial setting.

The invention provides a calibration method for an X-ray nuclear scale and the X-ray nuclear scale. The calibration method is applied to the X-ray nuclear scale. The X-ray nuclear scale includes an X-ray source, an X-ray detector, brackets and a weighing instrument. The method includes the steps that the weighing instrument acquires X-ray energy and intensity output by the X-ray detector and a tube voltage parameter and a tube current parameter sent by the X-ray source; the weighing instrument determines the offset of the tube voltage parameter and the offset of the tube current parameter according to the tube voltage parameter and the tube current parameter respectively; the X-ray source adjusts the tube voltage parameter and the tube current parameter based on the offset of the tube voltage parameter and the offset of the tube current parameter. According to the calibration method of the embodiment, the X-ray detector is doubled as a feedback sensor for monitoring the X-ray energy and intensity, the tube voltage and tube current of the X-ray source are controlled through feedback to keep the X-ray parameters of the X-ray source constant, and the measurement stability of the X-raynuclear scale is improved.

The invention provides a coal stock counting method and a coal stock counting system which are used for conveniently and quickly counting a coal stock. The coal stock counting method provided by the invention comprises the following steps: the coal stock counting system determines a start point; the coal stock counting system acquires coal stock information of a coal storage yard around an originof coordinates from the start point; the coal stock counting system outputs the coal stock information. According to the technical scheme, the coal stock counting method has the following advantages:the coal stock counting system determines the start point, acquires the coal stock information of the coal storage yard around the origin of coordinates from the start point and outputs the coal stockinformation, so that high-automation coal stock counting work can be conveniently and quickly carried out, user operation is greatly avoided, and relatively high accuracy can be achieved; therefore,the coal stock information obtained by the coal stock counting work is more reliable, so as to promote intelligent operation of a thermal power plant.

The invention relates to a belt conveyor material moisture content on-line detection method and device. The method includes: firstly, utilizing an image acquisition device for image acquisition of a material at the starting position of a belt conveyor weighing section according to a preset frequency; secondly, judging whether the sum of material advancing distance corresponding to the acquired material image meets the belt conveyor weighing section length requirement, if so, controlling a material weighing apparatus in terms of acquiring the actual weight of the material on the belt conveyor weighing section, and according to the pixel point information corresponding to the material surface in the acquired material image and a calibrated material dry base density, calculating the dry baseweight of the material on the weighing section; and according to the actual weight and the dry base weight, calculating the material moisture content. The method and device provided by the invention achieve calculation of the material dry base weight by acquiring the material image, and the actual mass of the material is directly measured by a contact-type weighing apparatus. Therefore, the detection result cannot be limited to moisture content detection at the material surface area and is not easily interfered by the external environment.

A weight inspection apparatus includes a weight obtaining unit, an irradiation unit, a detection unit and an estimated weight calculation unit. The weight obtaining unit is configured to obtain an actual weight of an inspection target object. The irradiation unit is configured to irradiate the inspection target object with energy waves. The detection unit is configured to detect the energy waves irradiated at the inspection target object. The estimated weight calculation unit is configured to calculate an estimated weight of the inspection target object based on a result of detection by the detection unit. The deviation amount calculation unit is configured to calculate a difference between the actual weight obtained by the weight obtaining unit and the estimated weight obtained by the estimated weight calculation unit.

A measuring apparatus for performing a basis weight measuring method for sheet tobacco according to the present invention includes: a light source (28) that emits light to sheet tobacco (ST) passing through a measurement position (P) on a transport path (18); and a visual sensor (30), the visual sensor (30) having a color camera (32) disposed with the transport path (18) put between the color camera (32) and the light source (28), a processing part (40) that transforms a color image of the sheet tobacco (ST) taken by the camera (32) into a grayscale image, and a conversion part (42) that converts an average gray level of the grayscale image into a basis weight of the sheet tobacco (ST) with reference to a conversion map which indicates a relationship between the average gray level of the grayscale image and an actual basis weight of sheet tobacco (ST).

A method and a device for verifying mass inside a quilt is provided. A top of a box of a write-through device is placed with the quilt, which is unfolded and paved, and which is then put with a transparent platen. The quilt is next gently pressed and fixed by a semi-transparent board of the box, and the box rotates twice and stops at a vertical position. When the quilt is photographed under a write-through condition, one photo which is put in a transparent bag, and the other photo which is a locally exploded picture of the quilt, are attached on proper positions of the quilt.

The present invention relates to a device for determining the mass of a nanoparticle, virus or protein in a suspension or solution in a fluid. This device can be applied in particular to mass spectrometry for ionized species with high collection efficiency (i.e. low limit of detection). According to the present invention, an instrument comprises a first device for electrospraying the fluid to obtain a charged flux comprising at least the particle, a second device for determining the mass of the particle by a frequency measurement and a third device that is fabricated on the same chip with, and surrounding the second device to focus and guide the majority of the incoming charged particles including at least the particle by means of holding charge on itself to act as an electrostatic lens. The charge on the third device can be induced either by the original electrospray of the same polarity as the particle itself or by a separate mechanism such as, including but not limited to, by using a separate tip to generate charging through a proper mechanism such as electrospray or corona discharging.