Detail DELAVAN MICROWAVE 320
These controls are non-contact sensing microwave based
controls. The transmitter ( source) consists basically of a power
supply, pulse modulator, Gunn oscillator, and directional
antenna. The receiver consists of a directional antenna, a
microwave mixer cavity with a Schottky barrier diode detector,
a high gain, low noise amplifier, a pulse coding network, a
voltage comparator circuit and a relay driver circuit.
