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Dongguan Hallsen Technology Co., Ltd
Hall sensors are widely used in water meters. Their working principle is to convert magnetic signals into electrical signals. A magnet is installed on the pointer of a mechanical water meter using the principle of magnetic induction. The Hall element sensor is fixed in an appropriate position, and the pointer rotates to drive the magnet to rotate. When the magnet approaches or leaves the Hall element, the sensor can sense the signal, convert the number of pointer rotations into the number of pulses, and transmit the pulses to the signal collector after shaping. The amount of water used is obtained from the number of pulses.
Recommended model: TMR1302 omnipolar micro-power magnetic sensor
TMR1302 is an omnipolar magnetic switch developed for high-sensitivity, high-speed, low-power, and high-precision applications that integrates tunnel magnetoresistance (TMR) sensors and CMOS technology.
TMR1302 uses TMR magnetic sensor and CMOS integrated circuit, including voltage generator, comparator, Schmitt trigger and CMOS output circuit, which can convert the changing magnetic field signal into digital voltage signal output.
TMR1302 provides temperature compensated power supply through internal voltage regulator and allows wide operating voltage range. TMR1302 is an ideal choice for many low-power and high-performance applications with low operating voltage, micro-ampere supply current, high response frequency and wide operating temperature range.
TMR1302 adopts two packaging forms: SOT23-3 and TO-92S, and the corresponding product models are TMR1302S and TMR1302T respectively.
