BYPASS PIPE TYPE LIQUID LEVEL GAGE

摘要

PROBLEM TO BE SOLVED: To provide a bypass pipe type liq. level gage at a low cost which measures the liq. level in an approximately vertical measuring pipe (what is called a bypass type measuring pipe) mounted on the side face of a tank through a joint pipe at the top and the bottom of the tank so as to communicate with the tank, without using any movable part in the pipe, thereby obtaining the liq. level in the tank. SOLUTION: A measuring pipe 1 is disposed at the side of a tank to bypass and communicate in the tank, a reference chamber side pipe 2 bypassing and communicating in the measuring pipe 1 is provided at the lower side of this pipe 1, and signal transmitting-receiving elements for receiving ultrasonic signals transmitted from the bottoms and reflected at the liq. level in the measuring pipe and signal transmitting-receiving elements for receiving ultrasonic signals reflected at a top reflection in the reference chamber side pipe are provided respectively at the bottoms of the measuring pipe 1 and the reference chamber side pipe 2.