Quarry Shaft Level Sensor is a microwave FMCW Range Finder that consists of an antenna and controller and is designed for detecting levels in a quarry shaft.
The MWS-DP-3 Microwave Solids Flow Sensor detects moving solids utilizing microwave high penetrability and the Doppler effect.
The transmitter is installed beside the tracks some distance before the switching points: the receiver is installed on the maintenance car.
When the points are closed, the switching control box turns on the power to the transmitter, as the maintenance car approaches, the receiver detects the emitted microwaves and warns the driver to stop the vehicle, if he fails to brake within the warning zone, the car is automatically stopped.
Developed in Japan for the Bullet Train operator Japan Rail Co.
Range Finder is installed in the High Frequency Induction Furnace to measure the level of atomic waste within the furnace.