33results about How to "To achieve the purpose of calibration" patented technology

The invention relates to a tool for checking tire molds, in particular to a workbench measuring circular degree and curvature of tire molds. The invention provides a device with simple structure and convenient use, which can completely cover the components needing check so as to obtain equipments with data being absolute values. The tool comprises a stand (13) that is provide with a rotary table (31) at one side and a stand widening angle iron (1) at the other side; the stand widening angle iron (1) is provided with a support pillar that is provided with an infrared circularity survey meter (32); the rotary table (31) is provided with a circularity correcting mechanism and a plane correcting mechanism; the rotary table (31) is further provided with a main shaft (27); and the rotary table (31) is movably connected with the stand (13) via the main shaft (27). After the structure is used, tire molds can be rotated to proper positions, and plane correction and circularity correction are carried out according to the shape of tire molds and the requirements of detection. The up-and-down movement of the circularity survey meter can be used for full correction.

The invention discloses an angle calibration device for a speed reducer detector and an angle calibration method of the angle calibration device. The angle calibration device comprises an adapter shell, a calibration rod, a circular grating angle measurement system and a bearing, the two end faces of the adapter shell are fixedly connected with the high-speed end and the low-speed end of the speedreducer detector respectively. The calibration rod is arranged in the hollow part of the adapter shell, and external splines at the two end parts of the calibration rod respectively match internal splines at the high-speed end and the low-speed end of the speed reducer detector to transmit motion; the circular grating angle measurement system comprises a circular grating ruler and a circular grating reading head, and the circular grating ruler is fixed on the calibration rod; the bearing comprises an inner ring and an outer ring, the inner ring is matched with the calibration rod, and the outer ring is matched with the adapter shell. According to the invention, the real operation condition of the tested speed reducer can be simulated, the measurement of the angle value of the gap generated between the input shaft and the output shaft of the speed reducer and the detector in a spline connection mode can be realized, and the error compensation is carried out on the angle value in related parameters of the performance of the speed reducer influenced by the gap value.

The invention relates to the technical field of equipment calibration, in particular to a calibration method and device for temperature detection equipment. The method comprises the following steps: acquiring an experimental melting temperature obtained by detecting a substance through temperature detection equipment in a calibration experiment; obtaining a standard melting temperature corresponding to the substance; calibrating the temperature detection equipment according to the standard melting temperature and the experimental melting temperature to obtain calibrated temperature detection equipment, wherein the calibrated temperature detection equipment is used for detecting the temperature of a substance in an actual experiment, and the standard melting temperature of the substance iscompared with the experimental melting temperature, so that the purpose of calibrating the temperature detection equipment is achieved.

The invention belongs to the technical field of intelligent water meters, and relates to an Internet of Things transmitting method, device, transmitter and system for intelligent water meter forwarding, the system is automatically activated before reaching the appointed meter reading time, if the system is not activated through an external event, system parameters are inquired, the system parameters comprise the meter reading time and the uploading time, and when the meter reading time is up, a first Bluetooth module is started to establish communication connection with the intelligent water meter, and meter reading data of the intelligent water meter are obtained; and when the uploading time is up, the communication module is started to establish communication connection with the upper computer, and meter reading data is uploaded. According to the intelligent water meter, after a booster circuit is omitted, the problem of electromagnetic interference is solved, the metering reliability of the meter end circuit is greatly improved, and the data uploading efficiency of the intelligent water meter is improved.

The invention relates to a vertical on-site torque calibration device based on a speed reducer force application principle and belongs to the torque calibration field. The device comprises a first electric lead screw lifting platform, a second electric lead screw lifting platform, a pressing sheet, a standard lever, a sensor to be measured, a lateral force resistance device, a pedestal, a movable working table, a first standard-type S sensor, a second standard S type sensor, a motor, a circular gear and a sector gear. Aiming at a large torque calibration demand, based on a current test condition, a set of on-site torque calibration device is established. A lever balance principle is used, and through the lever, a generated standard moment value is loaded and is compared to a measured data of a calibrated sensor so as to reach a calibration purpose. The device can be simply and rapidly operated. In the prior art, measurement precision is low, time is long and the device is not suitable for on-site detection. By using the device of the invention, the above problems are solved, requirements of measured value transmission and traceability are satisfied and large torque on-site calibration can be realized.

The invention belongs to the technical field of metering calibration, in particular to a metering calibration device, and aims to solve the problems that an existing metering calibration device is large in size, inconvenient to carry and low in the using flexibility. Proposed now is the following scheme, the device comprises a mounting base, two sliding grooves and a containing groove are formed in the top of the mounting base. Two groups of calibration blocks are placed in the containing groove; the top of each calibration block is fixedly connected with a hanging ring; lifting plates are mounted in the two sliding grooves in a sliding manner; the same cover plate is fixedly mounted at the tops of the two lifting plates; a handle is fixedly mounted at the top of the cover plate; two fixing hooks are fixedly installed at the bottom of the cover plate, a dynamometer to be calibrated and a standard dynamometer are hung on the two fixing hooks respectively, and two threaded grooves are formed in the sides, away from each other, of the two lifting plates, so that the two lifting plates are contracted conveniently, the occupied space is reduced, and the device is convenient to carry, simple in structure and convenient to use.

The invention provides a distance measuring system comprising an assembly body, a transmitting assembly, a receiving mirror group, a receiving sensor, and refractor groups. The refractor groups are disposed on the assembly body. The transmitting assembly and/or the receiving sensor are/is disposed on the side part/s of the assembly body. The refractor groups can move in at least one direction, and optical paths are changed by the refraction of the refractor groups, and the miniaturization of the size of the distance measuring system is realized. The invention also provides a method of calibrating the optical paths of the distance measuring system. By moving a first refractor group and a second refractor group to adjust and calibrate the optical paths, a transmitting optical path and a receiving optical path are superposed with each other, and a calibration object is achieved. The above mentioned method has advantages of simple operation and high measurement precision.

The invention discloses a stratum capture cross section curve correction method, device and equipment, and the method comprises the steps: building a Monte Carlo calculation model of a stratum capturecross section, and analyzing an influence factor obtained by the stratum capture cross section according to the Monte Carlo calculation model; the method comprises the steps that actual well data anda capture cross section curve of a marker bed in existing bare well data are obtained, an abnormal well section in an actual well is selected according to the capture cross section curve of the marker bed, influence factors in the abnormal well section are corrected, and the marker bed comprises a pure mud rock layer and a pure water layer; and obtaining a corrected stratum capture cross sectioncurve according to the corrected abnormal well section data. On the basis of a Monte Carlo method, a marker bed method is adopted to correct influence factors, the application condition of PNN loggingis obtained, and production practice can be guided to a certain extent.

The invention discloses a bridge frame air pipe pre-embedded control device. The device comprises a square pipe, limiting plates, a bottom plate, a connecting block and a rotating rod, wherein the two limiting plates are installed at the two ends of the square pipe in a sliding mode, the bottom plate is vertically installed at the bottoms of the limiting plates, the connecting block is installed in the middle of the side face of the square pipe, the rotating rod is rotationally installed in the connecting block, the two ends of the rotating rod are connected with the limiting plates through threads, and the two sections, located at the two sides of the connecting block, of the rotating rod are provided with forward threads and reverse threads correspondingly; and at least two hollow pipes are installed on the upper surface of the square pipe, limited pillars are clamped in the hollow pipes, and the limited pillars are pre-embedded in a bridge frame. The device is convenient to mount, and the problems that in the prior art, the angle cannot be controlled during air pipe mounting, the operation difficulty is high, the butt joint speed is low, and the support is inconvenient to dismount can be effectively solved.

The invention provides a method and system for calibrating a transient fuel consumption meter. The method includes: acquiring all transient fuel consumption values of the transient fuel consumption meter within a preset time period through a controller, and weighing total consumed fuel flowing through the transient fuel consumption meter within the preset time period through an electronic scale; calculating a difference value between total fuel consumption corresponding to the sum of all transient fuel consumption values and the total consumed fuel through the controller; when the difference value exceeds a preset difference value, adjusting the transient fuel consumption value of the transient fuel consumption meter according to the difference value to acquire a display transient fuel consumption value to enable a display value of the transient fuel consumption meter to be within an error range so as to achieve the objective of calibration. In the process, only a data collection device and a weighing device are needed, so that calibration of the transient fuel consumption meter is completed simply and conveniently.

The invention discloses a harmonic and inter-harmonic angle calibration method and system based on fundamental wave angle calibration in the technical field of power data measurement. The method comprises the following steps: collecting analog signals of the specified voltage and current; converting the collected analog signals of the voltage and the current into digital signals; performing fundamental wave angle calibration on an angle difference generated between the analog signal and the corresponding digital signal due to hardware delay to obtain a fundamental wave angle correction value; according to the fundamental wave angle correction value, obtaining angle correction values of harmonic waves and inter-harmonic waves through calculation, wherein the angle correction values are used for calibrating the angle difference of the harmonic waves and the inter-harmonic waves generated by hardware delay. The purpose of calibrating the harmonic wave and inter-harmonic wave angle difference generated by hardware time delay is achieved.