Rotation speed sensor VG481V1. Free Technical Library News

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Speed sensor VG481V1

13.08.2020

The new VG481V1 sensor from Honeywell is designed to measure the speed of rotation of a ferrous metal gear.

The sensor allows you to detect the fact of the passage of a gear tooth. The moving gear tooth changes the magnetic field created by the bias magnet, which is recorded by the Hall sensor. With dual-peak detection circuitry, the VG481V1 can measure the speed of the gear with high reliability.

The VG481V1 speed sensor is used in automotive transmissions and, in general, is applicable in any transmission and mechanisms where it is necessary to monitor the rotation of a ferrous metal gear.

The VG481V1 includes a voltage regulator, a clock generator, a Hall element, an amplifier, a high and low detection circuit, a comparator, and an output stage. The sensor is protected from abnormal operation at voltages below the minimum threshold, the output of the microcircuit is resistant to short circuits.

The power circuit is insensitive to reverse voltage polarity. When power is applied to the sensor, the trigger circuit does not allow operation until a stable reading is established. VG481V1 allows you to define zero rotation speed.

The sensor is available in a slim size TO-92.

The main parameters of the Hall sensor VG481V1:

Rotation speed measurement;
Zero speed fixing;
Low price and simple inclusion;
Supply voltage from 4 to 24 V;
Operating temperature -40 to 150°C;
Output current up to 20 mA (open collector);
Output short circuit protection;
Reverse polarity protection;
Certified by AEC-Q100 (Grade 0).

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