GMR Sensors (Magnetic Encoders)
Primary Applications for GMR Sensors (Magnetic Encoders)
Rotary linear encoders, motion sensors and position-detection sensors
The Low-Resistance Variation Rate of the GMR Membrane
GMR Principles
When an external magnetic field is added and the direction of the magnetism of each magnetic layer becomes unified, the elemental electrical resistance decreases.
Output Features of the Drum-Mounted GMR Sensors
Heat Stability of the GMR Sensor
Main Specifications for GMR-Mounted Sensors
| Circuit low-resistance value | 500 ±20% |
| Magnetic sensitivity field | -7000 ~ 7000A/m (-100 ~ 100Oe) |
| Operating temperature | -40°C ~ 120°C (Humidity under 95%, no condensation) |
| Median point electric potential |
2.5V±0.5V |
| Median point drift | Under ±5mV |
| Low-resistance variation rate | 10% (±7000A/m) |
| Corresponding pitch | Over  40m |
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