45results about "Weighing temperature-compensating arrangements" patented technology

The invention relates to the technical field of electronic weighing equipment, in particular to an ORS electronic hoist scale temperature and humidity compensation method and system based on an adaptive neural network, and the method comprises the steps: collecting multi-source heterogeneous data related to an ORS electronic hoist scale; performing parallel processing on the multi-source heterogeneous data through a double-branch adaptive attention neural network; determining a working condition membership degree based on the working condition dynamic quantitative index, and fusing the static compensation amount and the dynamic compensation amount to obtain a total compensation amount; and combining the total compensation amount with an original weighing value, outputting a compensated weighing value, and performing online optimization updating on the double-branch adaptive attention neural network. The technical problems of low measurement precision, poor working condition adaptability, insufficient real-time performance, poor long-term stability and the like in temperature and humidity compensation of an existing ORS electronic hoist scale are mainly solved.

A system and method are disclosed that allow for determining the mass of a fluid within a container by first vibrating the outer surface of the container, where the container contains a fluid, such as a compressed fluid, a gas, a liquid, a mixture of gas and liquid, or a supercritical fluid. Vibration data is then received at the outer surface of the container, and the vibration data is then converted to one or more frequencies. The mass of the fluid in the container is then estimated based on the one or more frequencies.

The present invention relates to a system for measuring load applied to a vehicle axle, a method for measuring load applied to a vehicle axle, a method for calibrating the measuring system, and a device for sensing axle strain. The present invention specifically comprises a solution capable of measuring the load applied to vehicle axles and to the whole vehicle by reading the strain caused to the vehicle axle as a function of forces generated by the loading of the vehicle. The strain-reading device is arranged in an optimised structure that is easy to mount on the vehicle and is configured to prevent interference in the reading of collected data, contributing to improved load measurement. The strain or load values for each axle are sent to a cloud platform, processed and made available to the vehicle driver and / or transport company, so that they can visualise and monitor the weight and distribute the load across the axles according to the measured values. The present invention pertains to the fields of mechanical engineering and measuring systems intended for commercial vehicles.

An electronic refrigerant scale, comprising a housing (1) and a weighing platform (2) horizontally arranged on the housing (1). A solenoid valve (3), a first charging valve (4), and a second charging valve (5) are disposed within the housing (1). The first charging valve (4) and the second charging valve (5) are both vertically arranged, upper ends of the two valves both extend out of the housing (1), a lower end of the first charging valve (4) is in communication with one end of the solenoid valve (3), and a third charging valve (8) and a three-way pipe fitting (9) are further disposed within the housing (1). The third charging valve (8) is vertically arranged, and the weighing platform (2) is provided with a clearance hole (2a) for an upper end of the third charging valve (8) to extend out. One end of the three-way pipe fitting (9) is in communication with the other end of the solenoid valve (3), and the other two ends of the three-way pipe fitting (9) are in communication with a lower end of the second charging valve (5) and a lower end of the third charging valve (8), respectively. Thus, the problem of poor practicability of existing electronic scales is solved.

The application provides an electronic scale calibration method, which comprises the following steps: acquiring the working environment temperature of the electronic scale, searching for the standard zero point internal code value and the standard range internal code value corresponding to the working environment temperature in a pre-stored temperature internal code table, and calculating the internal code weight relationship value according to the standard zero point internal code value and the standard range internal code value; acquiring the actual internal code value of the electronic scale; and calibrating the actual measured weight of the electronic scale based on the actual internal code value, the standard zero point internal code value and the internal code weight relationship value, so as to automatically adjust the measured weight of the electronic scale according to different temperatures and calibrate the electronic scale.

An inclination of a weighing apparatus is automatically detected by the apparatus itself while preventing an increase in the number of components. In order to achieve the object described above, a weighing apparatus includes a weight sensor, a built-in weight to be loaded on the weight sensor, an adding / removing unit for adding / removing the built-in weight, a memory storing a theoretical value of the built-in weight, and an arithmetic processing unit, wherein the arithmetic processing unit includes an inclination angle computing unit configured to obtain an apparatus inclination angle from an arc-cosine of a weighing value of the built-in weight and the theoretical value of the built-in weight.

An electronic balance includes an electromagnetic unit including a yoke with a magnet disposed inside, and configured to achieve a balance with a load of a to-be-weighed object by supplying a current to a coil disposed in a magnetic field of the magnet, and a temperature sensor configured to detect a temperature of the electromagnetic unit, wherein the temperature sensor is attached to a flexible board including a sensor attaching portion to which the temperature sensor is attached and a lead wire portion configured to connect the temperature sensor to an A / D converter, a sensor accommodating recess capable of accommodating the temperature sensor is formed on a surface of the yoke, and the temperature sensor is attached to the electromagnetic unit so that the temperature sensor is accommodated in the sensor accommodating recess, and the sensor attaching portion closes the sensor accommodating recess.

Scales for use with cooking appliances such as pressure cookers, and associated systems and methods, are disclosed herein. In several implementations, a scale includes load cells configured to detect a weight of a cooking appliance placed on the scale and any food therein. The scale can further include temperature sensors positioned proximate to corresponding ones of the load cells and configured to detect the temperature proximate to each of the load cells. A processor within or external to the scale is communicatively coupled to the load cells and the temperature sensors, and is configured to determine the weight of the cooking appliance and food based at least in part on the detected weights and the detected temperatures.

Described is a thermogravimetric analyzer system. The system includes an evaporator having first and second fluidic channels and a thermally controlled heater assembly. The first fluidic channel has a first channel inlet in fluidic communication with a gas supply module, a first channel outlet and an end portion extending from the first channel outlet. The second fluidic channel has a second channel inlet in fluidic communication with a source of liquid and a second channel outlet disposed on the first fluidic channel at a merge location between the first channel inlet and the first channel outlet. The end portion of the first fluidic channel includes a bend to redirect a flow within the first fluidic channel and improve a mixing of the gas and liquid received by the first and second fluidic channels, respectively.

A silo content monitoring system 100 for a silo 102 fitted with a rotatable discharge auger 114, 118, comprises a strain gauge 150 affixed to at least one of the support struts 124 supporting the silo

The present invention relates to the field of measurement technology, and in particular to an integrated sensing module for a dynamic weighing system, including a physical domain, an environmental domain and a virtual domain, which realizes dynamic adjustment of parameters through cross-domain interaction, so as to cope with high-frequency vibrations and rapid temperature difference changes in complex environments. The physical domain is responsible for collecting multi-source data, the environmental domain perceives external interference in real time, and the virtual domain realizes time series feature extraction and dynamic model updating by combining the optimization capabilities of recursive neural networks and reinforcement learning. This technical solution significantly improves the real-time and adaptability of the system, can accurately predict environmental change trends, adjust the weighing strategy in advance, and control the error rate at an extremely low level. At the same time, by combining the negative feedback mechanism with the optimization of the objective function, the sampling frequency is dynamically adjusted to reduce energy consumption while ensuring data processing efficiency. The deep integration of wavelet decomposition, dynamic normalization algorithm and neural network model greatly enhances the accuracy and stability of data processing.

A semiconductor wafer mass metrology method comprising: controlling the temperature of a semiconductor wafer by: detecting information relating to the temperature of the semiconductor wafer; and controlling cooling or heating of the semiconductor wafer based on the detected information relating to the temperature of the semiconductor wafer; wherein controlling the cooling or heating of the semiconductor wafer comprises controlling a duration of the cooling or heating of the semiconductor wafer; and subsequently loading the semiconductor wafer onto a measurement area of a semiconductor wafer mass metrology apparatus.

The utility model provides a refrigerant electronic scale, which solves the problem that the existing electronic scale is poor in practicability. The refrigerant electronic scale comprises a shell and a scale pan horizontally arranged on the shell, an electromagnetic valve, a first inflating valve and a second inflating valve are arranged in the shell, the first inflating valve and the second inflating valve are vertically arranged, the upper ends of the first inflating valve and the second inflating valve extend out of the shell, the lower end of the first inflating valve is communicated with one end of the electromagnetic valve, and a third inflating valve and a three-way pipe fitting are further arranged in the shell; the third inflating valve is vertically arranged, and a receding hole for the upper end of the third inflating valve to extend out is formed in the scale pan. And the other two ends of the three-way pipe fitting are respectively communicated with the lower end of the inflating valve II and the lower end of the inflating valve III. The refrigerant electronic scale is relatively practical.

A system and method are disclosed that allow for determination of the pressure or relative amount of fluid within a container by first vibrating the outer surface of the container, where the container contains fluid. Vibration data is then received at the outer surface of the container, and the vibration data is then converted to one or more frequencies using, for example, a discrete Fourier transform. The pressure or relative amount of fluid in the container may then be estimated based on the one or more frequencies (e.g., via direct linear correlation).

The invention provides a maritime work equipment weighing measurement method and system, and the method comprises the following steps: obtaining a weighing point position of a maritime work equipment structure and the reaction force of a corresponding point position according to modeling simulation; according to the bearing reaction force of each weighing point and the actual bearing force of the weighing measurement device, the number of pre-arranged weighing measurement devices of each weighing point is calculated; according to the pre-arrangement number of the weighing measurement devices and an arrangement adjustment strategy, the weighing measurement devices are arranged at corresponding positions below the weighing point positions; the data measured by the weight sensor is compensated based on the data measured by the temperature sensor, the compensation weight of each weighing and measuring device is output, the total weighing weight of the maritime work equipment structure is calculated based on the compensated weight, the layout of the weighing and measuring devices is optimized through a preset arrangement adjustment strategy, errors caused by unreasonable layout are avoided, and the working efficiency of the maritime work equipment structure is improved. And weighing data can be corrected, so that the influence of temperature on a measurement result is effectively eliminated, and the stability and accuracy of measurement are improved.

The present invention discloses a triode temperature compensation circuit, comprising an operational amplifier U1, a Vref-Z adjustment circuit, a transistor circuit, and a Vref-F adjustment circuit. The operational amplifier U1 is used for voltage following and increasing output impedance, thus acting as a voltage divider. The transistor circuit is used to obtain resistance values of V1 and V2 that match the temperature characteristics of the calculation balance. The transistor circuit is connected to the Vref-Z adjustment circuit and the Vref-F adjustment circuit. The Vref-Z adjustment circuit and the Vref-F adjustment circuit are used to perform temperature compensation for zero-point drift error and full-scale drift error. The advantages of the present invention over the prior art are: stable performance, low cost, and easy debugging; temperature compensation of the product is achieved by processing the voltage. This compensation method does not interfere with the weak analog signal of the sensor and does not consume CPU resources.

The utility model discloses a hand-held pricing electronic scale, which comprises a main body mechanism and a weighing mechanism assembled in the main body mechanism, the main body mechanism comprises a shell, and an electric control board is fixedly installed on one side in the shell. According to the portable pricing electronic scale, the weighing sensor, the hook and the electric control board are matched, the weighing sensor and the hook can weigh an object, and the electric control board can collect and store data detected by the weighing sensor; by means of the temperature sensor and the humidity sensor, the environment temperature and humidity during the operation of the electronic scale can be measured, and the electric control board can compensate the data detected by the weighing sensor according to the data detected by the temperature sensor and the humidity sensor. Therefore, the accuracy of the electronic scale when the electronic scale works in an environment with too high or too low temperature and humidity is improved, and errors of the electronic scale when the electronic scale is used in different environments are reduced.

The invention discloses an end-cloud cooperative vehicle intelligent weighing monitoring system and an intelligent processing method. The system adopts a three-stage processing architecture, vehicle dynamic load signals are obtained through a piezoelectric film sensor array, and after the signals are processed through a signal conditioning and multi-channel AD conversion module, high-speed data acquisition and packaging are carried out through an FPGA processing unit. And then, the main control unit carries out dynamic load analysis and running speed calculation on the data packet uploaded by the FPGA, and carries out real-time environment compensation in combination with data of the temperature sensor, so that vehicle characteristic modeling is realized. And the system automatically snapshots vehicle information when detecting that the vehicle passes. And if the system judges that the vehicle is overloaded or overspeed, integrating the data to generate a complete violation data stream. According to the invention, through an end-cloud cooperative processing mechanism and an optimized hardware architecture, and by introducing an environment compensation algorithm, the detection precision and the real-time performance of data processing are significantly improved, and a more reliable technical solution is provided for the field of dynamic weighing.

A silo content monitoring system (100) for a silo (102) fitted with a rotatable discharge auger (114, 118). The system has a strain gauge (150) affixed to at least one of the support struts (124) supporting the silo shell (104) above the ground. The strain gauge output (1500) is proportional to the compressive strain in the said silo strut (124), and is used to obtain an estimate of the silo's weight, and hence the weight of the silo's content, by subtracting a tare value. The system also has a motion sensor (152), which detects rotation of the discharge auger (118). A central processor of the system calculates: during a night time interval, an overnight silo content weight measurement (1502) based on the strain gauge (150) readings; and during a daytime interval, an estimated dispensed weight by subtracting a certain weight for each rotation or part-rotation of the auger (118). By doing this, the system (100) is able to display, on a read-out device (158), a dead reckoning silo content weight estimate (174), which is the overnight silo content weight measurement, minus the estimated dispensed weight since the last overnight silo content weight measurement.

The utility model discloses a weighing sensor device applied to a high-temperature environment, which comprises a weighing sensor, the weighing sensor is arranged in a closed shell structure, the shell structure is of a double-layer structure, an accommodating cavity is formed in the double-layer structure, and the accommodating cavity is used for arranging the weighing sensor and accessories; a middle layer is formed between the inner wall and the outer wall of the double-layer structure and connected with the vortex refrigerating system, and cold airflow of the vortex refrigerating system enters the middle layer to isolate external high temperature. Through the combination of the double-layer structure and the vortex refrigeration system, external heat is effectively isolated, heat generated inside is taken away through cold air flow, and it is ensured that the weighing sensor can still keep a normal working temperature range in a high-temperature environment. Due to the adoption of an efficient cooling mechanism, the influence of temperature fluctuation caused by heat conduction on the output of the sensor is reduced, so that the stability and the accuracy of a metering result are improved, and the problem of overload alarm is avoided.

Described is a weighing device (1, 1', 1'', 1‴) for process environments with a high pressure and / or temperature variation, particularly for environments which can be sterilised by superheated steam or with vacuum hydrogen peroxide, which comprises a box-shaped body (3), immersed in a compensation chamber (CC), and which has inside it a containment chamber (30) for the weighing instruments (31). Connected to the instruments (31) there is a weighing plate (2) integral with a spacer (21). The spacer (21) extends along a vertical direction (Z) and supports the object to be weighed. The plate (2) is suitable for operating in a process chamber (CP) which can be sterilised and hermetically separated from the compensation chamber (CC). There are also access and sealing means for the containment chamber (30), movable between an open position and a closed position: in the open position, the containment chamber (30) communicates with the outside, in the closed position, the containment chamber (30) is isolated relative to the process chamber (CP). There are also injectors (4, 41, 41', 41", 41"') of a flow entering the containment chamber (30) for cooling said instruments (31) and ejectors (5, 50, 51, 51', 51'', 51‴) of a flow coming out of the containment chamber (30) for controlling the internal pressure. The invention also relates to a process for weighing sterile elements with the device (1, 1', 1", 1‴) according to the invention.

A combination weighing apparatus includes a first stepping motor, which has a heat emitting surface, and a load cell. The load cell has a strain element and an electrical circuit including a first temperature-sensitive resistor. The strain element has a first thin portion to which a first strain gauge is attached, a second thin portion to which a second strain gauge is attached, and a first central portion disposed between them. The first central portion has a first surface that opposes the heat emitting surface of the first stepping motor and a second surface that does not oppose the heat emitting surface. The first temperature-sensitive resistor is secured to the second surface.

The application discloses a kind of load cell, including Wheatstone bridge, the excitation end of the Wheatstone bridge is connected with several compensation modules in series, the compensation module includes strain gauge and temperature compensation module group connected to the strain gauge in parallel, the temperature compensation module group includes several temperature compensation modules in series or parallel, the temperature compensation module includes thermistor in series or parallel, alternatively, includes several thermistors and several fixed resistors, and the thermistor and the fixed resistor are in series or parallel.The load cell of the application, the temperature compensation module is compensated to the strain gauge for non-linear compensation, so as to realize the temperature error in the non-linear error compensation of the load cell, and further improve the weighing precision and the weighing performance of the load cell.

The utility model provides a monomer electromagnetic force sensor for an electronic balance, which relates to the technical field of electronic balances, and comprises a weighing monomer with an integrated structure, the weighing monomer comprises a weighing wall, a micro electromagnetic force balancing unit, a permanent magnet cylinder body and a weighing machine body, and further comprises a composite shielding layer arranged on the periphery of the permanent magnet cylinder body, a thermistor is further installed in the weighing single body, the thermistor is connected with a measuring circuit of the sensor, and the composite shielding layer is composed of a copper outer layer and a permalloy inner layer. According to the utility model, the thermistor is arranged, and the resistance value of the thermistor is obviously changed along with the temperature change, so that the thermistor is reasonably connected with the measuring circuit of the sensor, and the output change of the sensor caused by the temperature change is counteracted by the resistance value change; the temperature compensation mechanism can effectively improve the measurement precision and stability of the sensor in different temperature environments.

A system and method are disclosed, that allow for the determination of a mass of a fluid within a container by first vibrating an external surface of a container, where the container contains a fluid (such as a compressed fluid, a gas, a liquid, a mixture of a gas and liquid, or a supercritical fluid). Then, vibration data is received at the external surface of the container, and the vibration data is then converted into one or more frequencies. The mass of the fluid in the container is then estimated based on the one or more frequencies.

To provide a system and a method for estimating the load of a specially-equipped vehicle and a computer program.SOLUTION: A specially-equipped vehicle having a hydraulic actuator for lifting a cargo box includes: an acquisition unit for acquiring data on the magnitude of a hydraulic pressure on the basis of output from a pressure meter for measuring the magnitude of a hydraulic pressure that acts on the hydraulic actuator; a correction unit for correcting data acquired by the acquisition unit; and an estimation unit for estimating the weight of the load in the cargo box on the basis of the corrected data.SELECTED DRAWING: Figure 4

A silo content monitoring system (100) for a silo (102) fitted with a rotatable discharge auger (114, 118). The system has a strain gauge (150) affixed to at least one of the support struts (124) supporting the silo shell (104) above the ground. The strain gauge output (1500) is proportional to the compressive strain in the said silo strut (124), and is used to obtain an estimate of the silo's weight, and hence the weight of the silo's content, by subtracting a tare value. The system also has a motion sensor (152), which detects rotation of the discharge auger (118). A central processor of the system calculates: during a night time interval, an overnight silo content weight measurement (1502) based on the strain gauge (150) readings; and during a daytime interval, an estimated dispensed weight by subtracting a certain weight for each rotation or part-rotation of the auger (118). By doing this, the system (100) is able to display, on a read-out device (158), a dead reckoning silo content weight estimate (174), which is the overnight silo content weight measurement, minus the estimated dispensed weight since the last overnight silo content weight measurement.