PRESSURE SWITCH Meaning and
Definition
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A pressure switch is a type of mechanical device used to monitor and control the pressure of a fluid or gas system. It is designed to detect changes in pressure and then respond by opening or closing an electrical circuit.
Typically, a pressure switch consists of a metal housing containing a diaphragm or a piston. The diaphragm or piston is connected to a set of electrical contacts, and as the pressure in the system changes, it will cause the diaphragm or piston to move.
When the pressure reaches a certain predetermined level, the movement of the diaphragm or piston will cause the electrical contacts to either open or close, thereby activating or deactivating a connected electrical circuit. This circuit can be used to trigger various actions, such as turning on or off a motor, activating an alarm, or shutting down a system to prevent damage.
Pressure switches are commonly used in a wide range of applications, including HVAC systems, hydraulic and pneumatic systems, industrial processes, and automotive systems. They are vital for maintaining the safety and efficiency of these systems by ensuring pressure levels are within acceptable limits.
Overall, a pressure switch is a crucial component for effective pressure monitoring and control in various industries and systems, providing a reliable and automated means of responding to changes in pressure and triggering appropriate actions.
Etymology of PRESSURE SWITCH
The term "pressure switch" is composed of two words: "pressure" and "switch".
- "Pressure" comes from the Latin word "pressura", derived from the verb "premere", meaning "to press" or "to squeeze".
- "Switch" originated from the Old English word "swecan" or "swician", meaning "to move or swing quickly".
When combined, "pressure switch" refers to a device that operates through the force of pressure and is capable of controlling or changing an electrical circuit. The term itself was likely coined based on the functionality of the device.
