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

The invention relates to a flow calibration device for a methane conveying pipeline and belongs to the field of energy.The flow calibration device is composed of a pipeline air velocity transducer 10, a rubber plug 6, a conical sleeve 5 and a nut 8.The pipeline air velocity transducer 10 is inserted into the rubber plug 6, the rubber plug 6 is arranged in the conical sleeve 5, and the conical sleeve 5 is fixed to a reserved hole 2 of the methane pipeline 1 through the nut 8.The defects that existing flow meter calibration equipment is complex in calibration process, large in consumed labor and long in consumed time, and affects normal operation of a methane project are overcome, and the provided flow calibration device for the methane conveying pipeline is simple in equipment, good in sealing performance, convenient and rapid to operate and stable and reliable in effect.

The present application relates to the technical field of equipment calibration, in particular to a calibration method and device for temperature detection equipment. This application obtains the experimental melting temperature obtained by detecting the substance through the temperature detection equipment in the calibration experiment; obtains the standard melting temperature corresponding to the substance; and detects the temperature according to the standard melting temperature and the experimental melting temperature The equipment is calibrated to obtain the calibrated temperature detection equipment; wherein, the calibrated temperature detection equipment is used to detect the temperature of the substance in the actual experiment, and the standard melting temperature of the substance is corresponding to the experimental melting temperature. The temperature detection equipment is calibrated for the purpose.

A high-accuracy stepped hole measuring caliper relates to the technical field of construction engineering, including a caliper whose middle part is rotatably connected with a rotary block. The high-accuracy stepped hole measuring caliper is used in conjunction with the ball and the gravity block. Before fixing the measuring device, the device is inserted into the stepped hole, and the calibration disc is rotated to make the ball roll in the movable groove. When the ball rolls to the shrapnel , press the shrapnel downwards, so that the second spring is compressed, and the gravity block is under the downward pressure of the second spring, but because the gravity block is not vertically downward, the gravity block is subjected to the friction force of the rubber pad, and cannot stretch out the calibration plate. When the gravity block is turned vertically downward, the gravity block will pop out the calibration plate under the action of spring 2. At this time, the caliper is in a vertical or horizontal state, thereby achieving the purpose of calibration and improving the accuracy of the measurement results , At the same time, during the measurement, the angle of the caliper can be changed by rotating the rotary block and inserting the block to increase the measurement range.

The invention discloses a method for calibrating an electronic label with a temperature sensor, comprising the following steps: step S1, using a metering-level calibration thermostat to generate a series of high-precision calibration labels in different temperature ranges; and step S2, performing calibration of the temperature-sensitive electronic label , prepare an ordinary incubator, put the label to be calibrated and the standard label within the range of the calibration temperature point into the designated position of the ordinary incubator for temperature scanning, and measure the temperature values ​​of the standard labels at the two temperature points and their corresponding temperature values ​​respectively. The output voltage value of the label to be calibrated is calibrated according to the obtained temperature value of the standard label and the corresponding voltage value of the label to be calibrated; step S3, write the parameters of the calibrated label to the label to be calibrated , the present invention can achieve the purpose of calibrating the electronic label with a temperature sensor, avoiding the use of a metering grade calibration incubator for calibration, the temperature stabilization time is short, the stability accuracy requirement is reduced, and the calibration cost will be greatly reduced.

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 discloses a microphone calibrator and a calibration method thereof. The microphone calibrator comprises a muffler, a mounting section for a microphone to be calibrated, a mounting section for a standard microphone and a sound source which are sequentially connected from front to back, wherein the mounting section for a microphone to be calibrated is provided with a mounting hole fora microphone to be calibrated, and the mounting hole is used for mounting the microphone to be calibrated; and the mounting section for a standard microphone is provided with a mounting hole for a standard microphone, and the mounting hole is used for mounting the standard microphone. The calibration method comprises the following steps: mounting two standard microphones in two mounting holes of the different standard microphones in accordance with different frequencies, measuring a complex reflection coefficient r of the muffler, and then obtaining a complex sensitivity curve of the microphone to be calibrated; and enabling the sound source to respectively send out sound waves of different frequencies, obtaining the complex sensitivity curve of the microphone to be calibrated, and thus achieving the purpose of calibrating the microphone to be calibrated. The invention can realize simultaneous calibration of a large number of microphones, thereby saving the calibration time. Besides, the invention can carry out phase calibration for a large number of microphones.

The invention provides a hinge assembly. The hinge assembly comprises a seat body, a plurality of hinge holes formed in the seat body and a reinforcing piece arranged at the inner side of a refrigerator body. The reinforcing piece is provided with positioning pieces which penetrate through the refrigerator body and are matched with the hinge holes. A protruding block is arranged on the hole wall of each hinge hole or on one of the positioning pieces. When the positioning pieces are arranged in the hinge holes in a matched mode, the protruding block abuts against the hole wall of the corresponding hinge hole or the other one of the positioning pieces. The invention further provides a refrigerator provided with the hinge assembly. When a refrigerator door body is dislocated or is unparallel to the refrigerator body, the protruding block can be stressed and deformed by tapping the hinge seat body so that the hinge seat body can be displaced, and accordingly the position of the door body can be adjusted according to requirements. The hinge assembly and the refrigerator have the advantages of being easy to operate, low in cost, safe and reliable.

The invention relates to a calibration method and device for the elevator lift-car position, an elevator calibration system, computer equipment and a storage medium. The method comprises the steps that a first distance and a second distance corresponding to a current position where an elevator lift-car runs to are obtained; the first distance and the second distance are measured and obtained by distance detecting devices, and the distance detecting devices are arranged at the top and / or the bottom of the elevator lift-car and at the top and / or the bottom of a counterweight; the change tendencyof the first distance corresponding to different positions where the elevator lift-car runs to is opposite to that of the second distance; the first distance and the second distance after calibrationof the current position are obtained according to the first distance and the second distance of the current position and a distance calibration model; and the calibration is performed on the currentposition of the elevator lift-car according to the first distance and the second distance after the calibration of the current position. By means of the calibration method for the elevator lift-car position, the purpose of performing the calibration on the elevator lift-car position is realized, so that the measuring accuracy of the elevator lift-car position is improved.

The invention discloses an equipment calibration method and an output device, relating to a color management technology. The equipment calibration method comprises the steps: converting every first color data group in a file to a second color data group according to a first corresponding relation table of the stored first color data groups and second color data groups, wherein the second color data groups are the color data groups corresponding to target objective vision chromatic values which is necessary to output by the first color data groups, in a second corresponding relation table of actual objective vision chromatic values and color data groups, and the second corresponding relation table derives from a color target diagram output through measurement equipment; and outputting the file according to the second color data groups. The color data groups are directly used for calibration, so the correlation of various parameters is taken into consideration, and the equipment calibration efficiency, the operation easiness and the calibration effect are enhanced.