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Sensor calibrating device

A technology for calibrating devices and sensors, applied to instruments and other directions, can solve the problems of slow heating speed, long calibration time, low calibration efficiency, etc., to avoid explosion, facilitate air circulation, and speed up air circulation.

Pending Publication Date: 2018-04-06
华景科技无锡有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the need to calibrate the measured values ​​of the sensor at different temperatures, during the process of heating the container through the oven, because the container is sealed, the pressure in the container increases continuously during the heating process, and the temperature of the sensor may be higher. When the pressure reaches 80°C, an explosion may occur when the pressure is too high; moreover, during the heating process of the oven, the container is directly heated, and then the heat transfer through the container increases the temperature of the environment where the sensor is located, and its heating speed is slow, resulting in calibration time Long, low calibration efficiency

Method used

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  • Sensor calibrating device

Examples

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Effect test

Embodiment 1

[0023] like figure 1 As shown, this embodiment provides a sensor calibration device, including a temperature-adjustable oven (not shown in the figure), placed in the oven and provided with a base 1 for placing a sensor module with a placement groove 11, capable of A cover plate 2 for sealing the placement slot 11 , and a driving assembly 8 for driving the cover plate 2 to open and sealing the opening of the placement slot 11 .

[0024] In this embodiment, the drive assembly 8 drives the cover plate 2 to move, so as to seal or open the opening of the placement groove 11. During the heating process of the oven, the cover plate 2 is driven to move by the driving assembly 8 to remove the cover plate 2 from the opening of the placement groove 11, so as to facilitate the air circulation in the placement groove 11, accelerate the air circulation speed, and reduce the sensor module. The time required for the environment to be heated to the corresponding temperature; during the calibr...

Embodiment 2

[0033] The difference between this embodiment and the first embodiment lies in that the fixed position of the driving assembly 8 is different. In this embodiment, the drive assembly 8 is fixed on the inner wall of the oven, the cover plate 2 is connected to the protruding end of the drive assembly 8, and the drive assembly 8 drives the cover plate 2 to open and seal the opening of the placement groove 11 .

Embodiment 3

[0035] The difference between this embodiment and the first embodiment lies in that the moving direction of the cover plate 2 is different, and correspondingly the protruding direction of the protruding end of the driving assembly 8 is also different. Specifically, the support frame 9 is arranged on one side of the upper end surface of the base 1, the drive assembly 8 is fixed on the support frame 9 and the protruding end of the drive assembly 8 is parallel to the bottom of the base 1. The upper end surface is arranged, and the cover plate 2 can be driven to move left and right or forward and backward through the driving assembly 8, so as to facilitate the opening of the cover plate 2 and seal the opening of the placing groove 11 .

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Abstract

The invention relates to the technical field of testing technology and in particular discloses a sensor calibrating device. The sensor calibrating device includes a baking oven which can regulate temperature and also includes a pedestal, a cover plate and a driving assembly. The pedestal is arranged inside the baking oven and is provided with a placing groove which is intended for placing a sensormodule. The cover plate can seal the placing groove. The driving assembly can drive the cover plate to open and seals the opening of the placing groove. According to the invention, the driving assembly drives the cover plate to move so as to seal or open the opening of the placing groove through the cover plate. In the heating process of the baking oven, the cover plate is driven by the driving assembly so as to move the cover plate from the opening of the placing groove, which facilitates and accelerates ventilation inside the placing groove, shortens the time required for heating the environment of the sensor module to a corresponding temperature, and can prevent pressurization of the placing groove in the heating process from causing explosion.

Description

technical field [0001] The invention relates to the field of test equipment, in particular to a sensor calibration device. Background technique [0002] Sensors such as temperature sensors and pressure sensors may be used in high temperature, high pressure and other environments, so the sensor needs to be calibrated before leaving the factory to improve the measurement accuracy of the sensor. For example, temperature sensors, pressure sensors, etc. usually perform compensation calculations on the measured values ​​of the sensors under different temperatures and pressures to obtain measured values ​​and improve the measurement accuracy of the sensors. [0003] The existing calibration method is usually to install several sensors to be tested on the PCB board of the carrier, then place the carrier in the container and seal the container, then place the container in the oven and calibrate the PCB board with the external system connection. [0004] Due to the need to calibrate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D18/00
CPCG01D18/00
Inventor 缪建民鞠香
Owner 华景科技无锡有限公司
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