Details, datasheet, quote on part number: ZMT31
| Part | ZMT31 |
| Category | Sensors => Velocity Sensors => Angular |
| Description | Angle Sensor
The ZMT31 allows the contactless counting of the revolutions of a rotating magnet which is mounted on the axis of a wheel. Zero output voltages of the Wheatstones bridges are used as trigger signals. The sense of rotation of the wheel is taken into account by comparing the signal outputs of both Wheatstone bridges which are proportional to sin2(?) or sin2(?+45 ). The angle can be determined by evaluating these signals. Alternatively it is possible to use the voltage signals of four half bridges which are trimmed on Vb/2. |
| Company | Zetex Inc. |
| Datasheet | Download ZMT31 Datasheet |
| Quote |
| Features, Applications |
DESCRIPTION The ZMT31 allows the contactless counting of the revolutions of a rotating magnet which is mounted on the axis of a wheel. Zero output voltages of the Wheatstones bridges are used as trigger signals. The sense of rotation of the wheel is taken into account by comparing the signal outputs of both Wheatstone bridges which are proportional sin2( +45 The angle can be determined by evaluating these signals. Alternatively it is possible to use the voltage signals of four half bridges which are trimmed V b/2. FEATURESMeasures the magnetic field hrot 50kA/m) generated by a permanent magnet which rotates over the sensor Magnetic field hrot parallel to the chip surface causes a sinusoidal output signal Package : SM-8 (available on 12mm tape) APPLICATIONContactless counting of the revolutions of a rotating magnet (watermeters etc.) Contactless angular measurement Automotive (pedal position etc.) Contactless rotary switches Contactless potentiometer Bridge 2: DEVICE ZMT31TA ZMT31TC REEL SIZE 7 13 TAPE WIDTH 12mm QUANTITY PER REEL 1000 4000PARAMETER Supply voltage Total power dissipation Operating temperature range Storage temperature range Sensor chip alignment error SYMBOL VB Ptot Tamb Tstg e LIMIT +130 2 UNIT mW C Zero offset angle hysteresis Temperature coefficient of the bridge resistance C <T amb <100 C Temperature coefficient of the open circuit sensitivity C <T amb <100 C Temperature coefficient of the offset voltage C <T amb C T CBR Output voltage of both Wheatstone bridges versus angle of the magnetic field direction |
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