Calibration device for air pressure sensor
A technology of air pressure sensor and calibration device, which is applied in measuring devices, instruments, measuring fluid pressure, etc., can solve the problems of small test range of sensors, poor safety protection, unstable position fixation, etc., to achieve high safety, strong stability, High stability effect
Active Publication Date: 2020-04-17
安徽赛安安全技术有限公司
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[0004] The purpose of the present invention is to provide a calibration device for air pressure sensors. By designing a high-pressure air box embedded with a high-temperature and high-pressure ceramic layer, an aluminum air pressure sensor mounting plate is installed on one surface of the high-pressure air box. Through holes are set on the outer peripheral side and the other surface of the box. By installing the air pressure sensor to be calibrated and the standard air pressure sensor, in conjunction with the top protection device and the bottom support device, the existing sensor has a small test range, poor safety protection, and unstable position. The problem
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[0038] 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. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0039] In the description of the present invention, it should be understood that the terms "inner", "a surface", "a side", "top", "another side", "bottom", etc. indicate orientation or positional relationship, and are only for It is convenient to describe the present invention and simplify the description, but does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation,...
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Abstract
The invention discloses a calibration device of air pressure sensors, and relates to the technical field of sensor calibration. The calibration device comprises a high-pressure air tank, a high temperature and high pressure resistant ceramic layer is nested in the high-voltage air tank, the top of the high-pressure air tank is provided with an air pressure sensor installing plate, and air pressuresensors to be calibrated are installed and distributed uniformly in one surface of the air pressure sensor installing plate; standard air pressure sensors are installed in four side surfaces of the high-pressure air tank respectively; and the internal bottom surface of the high-pressure air tank is provided with a constant pressure valve, and the external bottom surface of the high-pressure air tank is provided with support columns. The high-pressure air tank embedded with the high temperature and high pressure resistant ceramic layer is provided, the aluminum air pressure sensor installing plate is installed in one surface of the high-pressure air tank, through holes are formed in the outer periphery and the other surface of the high-pressure air tank, the air pressure sensors to be calibrated and the standard air pressure sensors are installed, a top protector and a bottom support device are used cooperatively, the measuring range of the sensor is widened, the sensor has a higher safety protection performance, and positions are fixed stably.
Description
technical field [0001] The invention belongs to the technical field of sensor calibration, in particular to a calibration device for an air pressure sensor. Background technique [0002] In the process of producing the air pressure sensor, it is necessary to calibrate the pressure point and temperature point of the air pressure sensor to meet the accuracy requirements. In order to improve production efficiency, batches of air pressure sensors are usually tested simultaneously. [0003] The existing pressure sensor calibration device, such as the authorized announcement number: CN 207036343U, is a Chinese utility model patent named sensor mounting plate of the pressure sensor calibration device. Its structure is an aluminum plate structure, and the sensor is fixed by opening holes on the substrate. Install the sensor in the through hole to complete the installation. The shortcomings of this patent are: 1. No sealing measures are taken to seal the installation part of the sen...
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IPC IPC(8): G01L27/00
CPCG01L27/005
Inventor 朱永亮朱广王洋洋
Owner 安徽赛安安全技术有限公司