Force value loading device for surface temperature sensor calibration
A surface temperature and loading device technology, which is applied to measuring devices, instruments, calorimeters, etc., can solve the problems of high sensor, large uncertainty of calibration results, burns, etc., to reduce the instability of contact force and the transmission of value Accurate and reliable, reducing the effect of measurement uncertainty
Active Publication Date: 2014-07-16
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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Problems solved by technology
These two ways of fixing the sensor have the following problems: first, the surface temperature sensor cannot be kept in vertical contact with the surface temperature source during the calibration process; second, the contact force value cannot always be kept consistent during the measurement process; At the same location as the surface temperature source, this leads to a large uncertainty in the calibration results
In addition, due to the high temperature of the heat source, the temperature of the handle of the sensor is high, and there is a risk of burns
Method used
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[0029] In the surface temperature sensor calibration force value loading device of the present invention, the three-dimensional displacement assembly is installed on the bracket 1, including horizontal X-direction displacement 2, Y-direction displacement 3 and vertical Z-direction displacement 4; X-direction displacement 2 and Y-direction displacement 3. It is realized by manual control, using the transmission and guidance method of screw and circular guide rail; the displacement in Z direction is realized by the stepping motor controlled by the electric control box, and the transmission and guidance method of the linear motion unit of the screw is adopted. 2 / 3mm, the displacement stroke in three directions is 200mm, and the displacement resolution is 0.05mm; the load cell 6 is installed on the slider 5 in the Z direction; the load cell 6 is used to measure the load on the surface temperature sensor 9 in the vertical direction The force value, the upper limit of measurement is ...
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The invention belongs to a force value loading device, and in particular relates to a force value loading device for surface temperature sensor calibration. The device is used for enabling a surface temperature sensor and a surface temperature source to be contacted mutually. The force value loading device for surface temperature sensor calibration is characterized in that the device comprises a support, a guide rail A, a guide rail B, a guide rail C, a slide block, a force testing sensor, a clamping fixture flange and a clamping fixture clamping head. The device provided by the invention can control the space position of the surface temperature sensor and force value loaded at the vertical direction, can guarantee the good contact of the surface temperature sensor and the surface temperature source, can reduce the measurement uncertainty, and can guarantee accurate and reliable testing value transmission; and because the position of the surface temperature sensor is controlled at three directions, the surface temperature sensor is vertical to the surface temperature source; and the force value loaded to the sensor is controlled at the vertical direction, the good contact of the surface temperature sensor and the surface temperature source is ensured, and the testing uncertainty caused by unstable contact force is reduced.
Description
technical field [0001] The invention belongs to a force value loading device, and relates to a force value loading device used for calibrating a surface temperature sensor. Background technique [0002] At present, in the calibration process of surface temperature sensors, hand-held or simple brackets are generally used to fix the sensors. These two ways of fixing the sensor have the following problems: first, the surface temperature sensor cannot be kept in vertical contact with the surface temperature source during the calibration process; second, the contact force value cannot always be kept consistent during the measurement process; At the same time as the surface temperature source, this leads to a large uncertainty in the calibration results. In addition, due to the high temperature of the heat source, the temperature of the handle of the sensor is high, and there is a danger of burns. Contents of the invention [0003] The purpose of the present invention is to pr...
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IPC IPC(8): G01K19/00
Inventor 杨新圆吕国义吴方陈炜王莉
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA