Suitable for pressure sensor pressure switch 31Q4-40830

1. Pressure sensor calibration device

Comprises a pressure air pump and an air chamber, wherein a positive and negative pressure regulating valve is arranged on the pressure air pump, and the pressure air pump is connected with the air chamber and used for inflating or pumping air into the air chamber, so that the air chamber has different positive or negative pressures; A first pressure measuring port and a second pressure measuring port are communicated with the air chamber, the first pressure measuring port is connected with a pressure gauge for testing the pressure in the air chamber, and the second pressure measuring port is connected with a pressure sensor to be adjusted so as to adjust the pressure value of the pressure sensor to be adjusted according to the pressure value of the pressure gauge; According to the calibration device of the pressure sensor provided by the patented technology of the invention, the value of the pressure sensor to be calibrated is adjusted for many times according to the standard pressure value of the pressure gauge, so that the characteristics of the pressure sensor conform to the linear relationship, thereby realizing the calibration, being simple and convenient, and solving the problems existing in the prior art that the pressure sensor is sent to a professional measurement and testing unit for calibration.

2. Pressure sensor calibration device

Characterized by comprising a pressure air pump and an air chamber, wherein a positive and negative pressure regulating valve is arranged on the pressure air pump, and the pressure air pump is connected with the air chamber and used for inflating or exhausting air from the air chamber, so that the air chamber has different positive or negative pressures; A first pressure measuring port and a second pressure measuring port are arranged in communication with the air chamber, wherein the first pressure measuring port is connected with a pressure gauge for testing the pressure in the air chamber, and the second pressure measuring port is connected with a pressure sensor to be adjusted so as to adjust the pressure value of the pressure sensor to be adjusted according to the pressure value of the pressure gauge.