A testing device for temperature characteristics of a pressure sensor
A technology of pressure sensor and temperature characteristics, applied in the direction of measuring device, force/torque/power measuring instrument calibration/test, measuring fluid pressure, etc., can solve problems such as insufficient integration, affecting test efficiency, fragmentation, etc., and achieve test results Precise, automated, tightly connected effects
Active Publication Date: 2019-12-31
安徽格太信控科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is in order to solve the shortcoming that exists in the prior art, as: because the test system of this solution is bulky, relatively scattered, not integrated enough, it is difficult to form a fully automated system; To balance the temperature of the test environment and affect the test efficiency, a test device for the temperature characteristics of the pressure sensor is proposed
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0018] In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", " The orientation or positional relationship indicated by "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, so as to Specific orientation configurations and operations, therefore, are not to be construed as limitations on the invention.
[0019] refer to Figure ...
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The invention discloses a test device for testing temperature characteristics of a pressure sensor. The test device comprises a bottom plate. First supporting rods, which are fixedly connected with the bottom plate, are symmetrically arranged on the upper side of the bottom plate. One ends of the first supporting rods, far away from the bottom plate, are provided with a working box. The working box is in sliding connection with the first supporting rods. The working box is composed of a left box body and a right box body. Second supporting rods are arranged on the bottom plate. One side of theworking box is symmetrically provided with L-shaped rods fixedly connected with the working box. One ends of the L-shaped rods are provided with transmission blocks. According to the invention, the test device is set to be in the form of a box. A heating device is additionally arranged in the box to heat the surrounding environment of the pressure sensor. Meanwhile, the working condition of the heating device is controlled through a computer, so that the whole test device is tightly connected. The data of the pressure sensor are transmitted through a transmission device and then are read by adisplay. Therefore, the test result of the test device is more accurate, and the consumed time is shorter. Meanwhile, the automation is basically realized.
Description
technical field [0001] The invention relates to the technical field of testing devices for micro-electromechanical devices, in particular to a testing device for temperature characteristics of a pressure sensor. Background technique [0002] The test of the pressure sensor usually includes repeatability, linearity, sensitivity, hysteresis characteristics, zero bias, zero bias stability, zero temperature drift, sensitivity temperature coefficient, full scale temperature coefficient and other items. This requires not only providing pressure excitation for the pressure sensor when testing the pressure sensor, but also providing a controllable high and low temperature environment at the same time. However, limited by the conditions of the test equipment, in many cases, the development and application units of the pressure sensor cannot provide the device with a pressure environment and a changing temperature environment at the same time in the process of testing the sensor devic...
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IPC IPC(8): G01L25/00G01L27/00
CPCG01L25/00G01L27/00
Inventor 王东叶挺刚蒋海托余永刚
Owner 安徽格太信控科技有限公司