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Resonant Bulk Level Sensor

The Gill Bulk Material Level Sensor provides a simple binary logic indication of the presence or absence of dry bulk powder, granules or grain in contact with the front sensing face. The sensor utilises a complex vibratory excitation to sense the presence of material in contact with the face. The sensor is only suitable for dry materials and not liquids. The sensing surface is flush with the sensor body and avoids entrapment of material. The design has incorporated a tough durable sensing face capable of withstanding impact and high static loads. It is intended for mounting upon an approximately vertical surface within a container and will typically be deployed in multiples to give level estimation. The unit has a sensing face of 42mm diameter within a body diameter of 87mm. The unit is 19mm deep with a three core flying lead exiting from one side. The technology employed within this sensor offers many advantages over traditional bulk level sensors, such as paddle sensors. This maintenance free device can be incorporated into silo, hopper and bin applications, where sensor access is remote and often dangerous, offering potentially large savings to the end user.

Typical sensor confi guration Principle of Operation

The sensor emits a frequency which changes when bulk material covers the metal face.This change in frequency produces a switching output which can be used to trigger an alarm, LED etc.
Resonant Bulk Level Sensor

www.gillsensors.co.uk