AH173-PG-B-B

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Magnetic sensors, also known as reed switches (solid state), are commonly used to detect the presence of a magnetic field, and can be used to open or close a circuit in response to a magnetic field. AH173-PG-B-B is one such reed switch, and is mainly used in the automotive industry. This document will explain the application field and working principle of the AH173-PG-B-B reed switch.

As a reed switch, AH173-PG-B-B is mainly used in automotive applications. In automobiles, these switches are used to monitor the position of cylinders, typically used in gasoline and diesel engines. The switch must accurate analyze the relative position of the cylinder to the piston, and be able to detect a change in the cylinder position even in the presence of strong magnetic fields. As such, AH173-PG-B-B are specifically designed for detection of strong magnetic fields, making them ideal for use in automobiles.

In terms of the working principle, the AH173-PG-B-B reed switch consists of two discreet terminals mounted in a sealed glass case. Each terminal contains a platinum alloy strip which is surrounded by a thin coil of wire. When a magnetic field is present, it causes the platinum alloy strips to expand and contract, thus opening and closing the connection between each terminal.

As a result, the reed switch is able to detect the presence and absence of a magnetic field, and open or close the circuit based on its current state. This in turn allows the switch to act as a “gateway” for other components in the circuit, and provide the necessary functionality, for example detecting the position of a cylinder in an automobile engine.

In conclusion, AH173-PG-B-B is a reed switch commonly used in the automotive industry for sensing the position of a cylinder in an engine. Its working principle revolves around the use of two terminals mounted in a sealed case, each containing a platinum alloy strip which can expand and contract in the presence of a magnetic field, thus opening and closing the circuit. This makes it an ideal choice for applications which require the presence of strong magnetic fields.

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