BDE-Electrical/Electronic

Proximity sensors detect objects without physical contact.

Solid-state relays are much smaller than corresponding single-pole relays.

A linear dc motor, like a rotating dc motor, generates mechanical force by the interaction of current in conductors and magnetic flux provided by permanent rare-earth magnets.

Limit switches: A mechanical limit switch interlocks a mechanical motion or position with an electrical circuit.

Circuit breakers are manual switches that open under overload conditions.

A special type of brushless motor is called a limited-angle torquer (LAT).

Experts say the single most important advance in PM motor technology was the introduction of rare-earth magnetic materials in the mid-1970s.

Generally, nonrotating wire contacts on screw-terminated connectors handle 12 through 30 awg solid or stranded wire.

Stepping motors offer many advantages.

Transistors are three-terminal semiconductor devices.

Not long ago, the only accelerometers available employed either a quartz crystal or moving coil.

Three major components in any fiber-optic system are the transmitter, receiver, and fiber cable.

Some types of sensors actuate an integral switch in response to a stimulus of some kind.

The days of matching catalog motors with available power supplies and controllers may be over.