Robust GMR sensors for angle detection and rotation speed sensing

Giebeler, C.; Adelerhof, Derk Jan; Kuiper, A. E. T.; Zon, J.B.A. van; Oelgeschläger, D.; Schulz, Günter

doi:10.1016/s0924-4247(01)00510-6

Cited by 114 publications

(45 citation statements)

References 6 publications

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“…Another role acts as a self-powered sensors themselves [39,40,41]. The measurement of rotating speed in our daily life and in industry is important [42]. Here, we demonstrate that the SETG can be used for detecting rotating speed when the SETG is working in rotational mode.…”

Section: Energy Harvesting Of Setgmentioning

confidence: 72%

Spiral-interdigital-electrode-based multifunctional device: Dual-functional triboelectric generator and dual-functional self-powered sensor

Guo

Chen

et al. 2015

Nano Energy

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Section: Energy Harvesting Of Setgmentioning

confidence: 72%

Spiral-interdigital-electrode-based multifunctional device: Dual-functional triboelectric generator and dual-functional self-powered sensor

Guo

Chen

et al. 2015

Nano Energy

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“…Although the smallest fields which these devices can measure is limited to a few microTestla's (unlike SQUID's, Superconducting QUantum Interference Devices, which can venture down to nano-and pico-Tesla), their dynamic range is sufficient for seismic accelerometry. In addition, they offer remarkable sensitivity, accuracy and linearity [14,15,16] within this range and have superior temperature tolerance [14,15,17]. In addition, unlike SQUIDs, these sensors do not need cryogenic conditions for operation, factors which are of great significance in the field operation of seismic monitoring units in harsh conditions.…”

Section: Application Of Gmr In Seismic Accelerometrymentioning

confidence: 99%

A Large Scale Seismic Monitoring Paradigm and Accelerometry Technique Based on the Giant Magnetoresistance Effect

Bukhari¹

2011

MJS

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An alternative paradigm in seismic monitoring is suggested and demonstrated here, incorporating a stratagem involving large-scale and multi-nodal monitoring using inexpensive sensors. A new seismic accelerometry method and its preliminary testing are reported here, based on the use of the Giant Magnetoresistance (GMR) effect (for the first time). The sensitivity, linearity and noise performance were observed to be satisfactory for the problem at hand, and the chosen magnitude of bias magnetic field was noted to effectively eliminate interference from the geomagnetic field. Analysis of obtained data reveals the technique as a viable method in seismic monitoring. It is proposed that a large array of such low-cost units could be valuable in a large seismically-active zone to monitor foreshock patterns, plate dynamics and developing defects, and could provide valuable insight for seismic monitoring.

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“…1). The magnetic strayfield emitted by the particles is detected by means of a GMR sensor element [14,15], which is located between the excitation wires. The sensor and the excitation wires are covered with a siliconnitride layer.…”

Section: Theorymentioning

confidence: 99%