103SR13A-9

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The 103SR13A-9 magnetic sensor is a module manufactured by TDK, designed to detect movement and rotational speeds of a rotating magnet within its working field. The specific application field of this device is to measure rotational speeds within an enclosed environment such as automotive engines, gearboxes, and other machinery.

The module is composed of multiple components that interact electrically and magnetically in order to measure magnetic field strength. The core components are an integrated Hall-Effect sensor (the E-Class Sensor by TDK) and a magnet. The E-Class Sensor features a high-performance sensitivity, switching capability, and accuracy that is ideal for high-speed signals output when combined with the magnet. The module also requires an evaluation circuit to process the received signals. This circuit has protection from surges and short circuits, as well as temperature compensation optimization.

The magnet and Hall-Effect sensor are the two key components responsible for measuring rotational speed. The magnet is placed at the center of the evaluation circuit board, which serves as a reference point and produces a uniform field. This field interacts with the Hall-Effect sensor, which detects the change in the field’s strength as it rotates. The changing field strength is converted into electrical signals, which in turn are sent to the evaluation circuit for analysis. The evaluation circuit processes the sensor’s analog output signals and based on the signals’ change, it can accurately determine the rotational speed of the magnet.

The versatility and accuracy of the 103SR13A-9 magnetic sensor make it an excellent choice for measuring the rotational speed of components in machinery. The module can be used in various applications that require precise speed measurements within enclosed environments. Additionally, TDK’s E-Class Sensor provides superior sensitivity and switching ability, making the 103SR13A-9 an ideal choice for any application where precise rotational speed measurements and long-term reliability are desired.

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