proximity switch การใช้

• A combination of proximity switches, mechanical switches, photoelectric sensors, and timers are all used by the controller to track train movements.
• The older outdated relay and photo eye controls were replaced with newer PLC ( Programmable Logic Controller ) and proximity switches.
• The company is also into manufacturing customized level sensors, pressure sensors, proximity switches, solenoid valves, fluidic systems, flow sensors, and Warrick controls.
• Kamp Componets Co . of Bristol won a $ 57, 950 contract from the Defense Supply Center in Columbus, Ohio, for proximity switches.
• By 1948, Pepperl + Fuchs was expanding into other electronic production, leading to the development of the first proximity switch in 1958 and the first transistor amplifier with an intrinsically safe control circuit.