The invention discloses a non-
contact type single-point
liquid metal liquid level measurement device, which consists of a sensing probe, a lifting casing
pipe, a liquid level probe, a direct-current stepping motor, an upper
flange plate, a lower
flange plate, a sealing shell, a meshing gear, a sealing element, a
signal processing system, a motor driving
system and a
wireless transmission system, wherein the sensing probe detects the free liquid level of detected
liquid metal; and the stepping motor is controlled by a corresponding
control algorithm to drive the lifting casing
pipe to lift, thereby keeping the sensing probe always in non-contact with the liquid level of detected
liquid metal to realize non-contact measurement; the maximum detection distance between the sensing probe and the liquid level of detected liquid
metal can be automatically calibrated by the liquid level probe, and the liquid level can be prevented from contacting with the sensing probe; and the sealing element can ensure the tightness of a measured container and is suitable for measuring the
metal liquid level of the pressure container. The liquid level device can measure the liquid level of the liquid
metal of which the temperature is up to 600DEG C, can be used for a long time, and has the advantages of high reliability and good sensitivity and accuracy, and is suitable for the accurate non-contact measurement of the high-temperature liquid metal liquid level.