BH Series Speed Sensors

Th BH series Bi-directional, zero velocity sensors are self-calibrating to the specific customer application and provide two independent frequency outputs and a direction signal output to indicate change in direction of the sensed, ferrous target. The sensors can also be referred to as a dual channel sensor since they utilize two Hall effect sensing elements, physically offset from each other. Each element generates a single channel of target information, identical in frequency and polarity, but offset in the time domain (phase shifted). Special circuits inside the sensor calibrate each channel to its application target, then analyse these two channels of information for a phase lead / lag condition.