As a high-precision liquid level measurement device, magnetostrictive liquid level gauge is widely used. Aiming at the problems existing in the magnetostrictive liquid level meter calibration device, such as complex operation, large equipment area and relatively low accuracy, a vertical magnetostrictive liquid level meter calibration device is designed. The high-precision grating ruler is used as the measurement standard, the mechanical positioning method is used to realize the rapid adjustment of the liquid level meter, and the vertical guide rail system is used to automatically realize the float's up and down fixed-point movement, The automatic and accurate measurement of liquid level gauge is realized by special control software. The measurement uncertainty of the device is evaluated, which proves that it has good accuracy and reliability. It can effectively meet the calibration requirements of magnetostrictive liquid level gauge with the measurement range of 0 ~ 2 m in compact space, and has the value of technology promotion. |