TMR40xx Series TMR Geartooth Sensor
●The TMR40xx series of geartooth sensor adopts a unique push-pull Wheatstone bridge design. This design includes a single-channel or dual-channel Wheatstone full bridge composed of four or eight unshielded high-sensitivity tunneling magnetoresistance (TMR) sensing elements. The Wheatstone bridge provides a differential voltage output along the gradient of the applied magnetic field along the sensor's sensing direction.
●The dual-channel Wheatstone full bridge generates two orthogonal sine/cosine voltage output signals to measure the position of the gear rotation and detect the direction of rotation. The high-sensitivity performance of the TMR40xx series enables detection of small magnetic field changes, and its output signal has good temperature stability.
●TMR40xx series provides multiple configuration of TMR sensing element spacing: 0.25mm, 0.4mm, 0.5mm, 0.6mm, 0.75mm, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 2.0mm, and 3.0mm. It is available in two compact LGA packages with dimensions of 3mm×3mm×0.9mm and 3mm×6mm×0.9mm.
■FEATURES AND BENEFITS:
●Tunneling magnetoresistance (TMR) technology
●High saturation field allows operation in large DC magnetic field
●High sensitivity to magnetic gradient
●Compatible to small pitch gear measurement
●Sine/cosine signal output with accurate phase difference
●Excellent resistance to external magnetic field interference
●Wide air gap tolerance
●DC (zero speed) operation
●Excellent thermal stability
●Compact package
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TMR40xx Series 、 TMR40xx 、 TMR4001 、 TMR4002 、 TMR4003 、 TMR4004 、 TMR4005 、 TMR4006 、 TMR4007 、 TMR4011 、 TMR4012 、 TMR4013 、 TMR4015 、 TMR4016 、 TMR4017 |
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[ Gear speed and direction measurement ][ Linear and angular speed sensing ][ Linear displacement sensing ][ Angular displacement sensing ][ Magnetic scale ][ Magnetic encoder ] |
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Datasheet |
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Please see the document for details |
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LGA;LGA6L |
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English Chinese Chinese and English Japanese |
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2021/11/3 |
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Ver. 1.2a |
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930 KB |
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