Ultrasonic wave liquid level detection device

The utility model discloses an ultrasonic wave liquid level detection device, including installation pole setting (1), installation horizon bar (2) and ultrasonic sensor (3), to install horizon bar (2) one end and install pole setting (1) top and be connected, installation horizon bar (2) the other end is connected with ultrasonic sensor (3), still include calibrating stem (4), the one end and the installation pole setting (1) of calibrating stem (4) are connected, and calibrating stem (4) are located ultrasonic sensor (3) below. Through increasing the calibrating stem, and during calibrating stem and liquid level be in same air circumstance, the time change volume was directly proportional, through measured distance to the calibrating stem and the truly comparison of distance, can calculate a coefficient, in the function that has reached accurate measurement liquid level position, transmission with this coefficient on duty of the actual measurement the liquid level.