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MR-Sensors
Where do you use MR-sensors?
MR-sensors, evaluation electronics and magnetic scales from Sensitec are in use everywhere, where movement is being controlled and steered, where paths, angles, positions, electric or magnetic fields are measured and detected.
What is the MR effect?
The MagnetoResistive Effect, "MR-Effect", has been known for 150 years. However, its use in sensor applications was first made practically possible through the development of thin-film technology some 30 years ago.
You will find us
… at the following exhibitions and fairs.
Our exhibition team is looking forward to presenting you our new products and innovations and to giving you technical advice for your individual measuring application.
Geological Testing
Equipment for geological testing, as used in oil or gas production, is applied under extreme environmental conditions. Very high or low temperatures, high pressure and dirt combine to make this field particularly difficult for sensors. The robustness and reliability of MR sensors make them ideally suited to this tough area of application.
Typical Applications
- Angular sensor for measurement of bore holes
Application example: Measurement of bit wear in deep drilling
Requirements
Measurement of bit wear for deep drilling in the earth`s core.
Key Specifications
- Stroke:
- 10 mm
- Resolution:
- 10 µm
- Temperature range:
- up to 200 °C
- Ambient pressure:
- up to 1000 bar
Solution from Sensitec
Scanning of a pole ring with an angle sensor of the AA700 family and amplification of the electrical signals directly at the sensor. The further signal conditioning takes place externally. The linear movement is converted into a rotational movement, so that the wear measurement takes place within one pole length (pitch).
Why use MR sensor technology?
- Simple adjustment
- No mechanical wear in the measurement system
- Absolute measurement over the full stroke length