MRSS29D

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Magnetic sensors and switches, also referred to as magnetoresistive (MR) sensors, are used in numerous applications to detect the presence of magnetic fields. One of the most popular magnetic sensors is the MRSS29D, which is a solid-state Hall effect-based MR sensor designed specifically to accurately detect and monitor the presence of magnetic fields in a wide range of applications.

The MRSS29D is a small package (3.3x 2.9x 0.76mm) and low-power solution (current consumption is 1.5mA typical) that is typically used for stationary or moving magnetic field measurements. It features low-hysteresis, lower temperature drift, and is shielded to prevent external magnetic fields from interfering with performance.

Aside from supporting stationary magnetic fields, the MRSS29D can also measure moving (fluctuating) fields. It can be connected to a frequency meter, oscilloscope or other equipment to monitor a field\'s fluctuations. It can detect fields in both the vertical (0 to 40mT) and horizontal (0 to 150mT) directions, giving it a wide range of applications.

Some typical applications for the MRSS29D include measuring the rotational speed of a motor, determining the speed and direction of a fan, and measuring the current in an electric motor. It is also suitable for a wide range of industrial and automotive applications.

The MRSS29D uses a Hall effect, a phenomenon discovered by Edwin Hall in 1879. It involves the transverse voltage created in a thin plate of conductor when a current flows perpendicularly to an external magnetic field. When the magnetic flux density (B) exceeds a certain threshold, it produces resistance. The resistance is generally measured using two probes connected to either side of the Hall effect plate.

The MRSS29D has a linear-output function, allowing for the accurate measurement of the magnetic field strength. This allows the equipment connected to the sensor to detect whether the magnetic field strength exceeds the specified threshold. The MRSS29D is also suitable for applications that require the same magnetic field to be monitored over time, such as in industrial process control.

The MRSS29D is one of the most versatile magnetic sensors, as it can be used to measure both steady and fluctuating magnetic fields. Its small size, low power consumption, low hysteresis, and shielded design make it suitable for a wide range of industrial, automotive, and engineering applications.

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