Name
Abstract | ||
|---|---|---|
Most of the resistive sensors have a large baseline resistor and a relatively small incremental change in the resistor value due to the measurand. A half-bridge-based versatile ΔR/R
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measurement system for a wide range of resistive sensors is reported in this article. A four-phase auto-calibration-based differential and ratiometric operation is used to compensate for the baseline resistance of the sensor and the mismatches due to the non-ideal circuit parameters. A low-noise application-specific current generator and low noise, high CMRR current-mode instrumentation amplifier is designed and fabricated in UMC 180-nm technology. A prototype board of the ΔR/R
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measurement system is developed and tested. The experimental results show that the proposed system is able to detect even smaller ppm level of about 72 ppm of ΔR/R
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for the base resistor R
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value as high as 0.5 MΩ with a relative error of less than ±1%. The effect of the parasitic capacitors on the sensor response is also tested experimentally. Finally, the proposed system is tested with an in-house fabricated displacement sensor. |
Year | DOI | Venue |
|---|---|---|
2020 | 10.1109/JSSC.2020.3017639 | IEEE Journal of Solid-State Circuits |
Keywords | DocType | Volume |
Δ R/R measurement,current generator,half bridge,instrumentation amplifier (INA),resistive sensors | Journal | 55 |
Issue | ISSN | Citations |
11 | 0018-9200 | 0 |
PageRank | References | Authors |
0.34 | 8 | 8 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Meraj Ahmad | 1 | 0 | 0.34 |
| Shahid Malik | 2 | 0 | 0.68 |
| Sourya Dewan | 3 | 0 | 0.34 |
| Arnesh K. Bose | 4 | 0 | 0.34 |
| Dinesh Maddipatla | 5 | 0 | 0.34 |
| Narakathu, B. | 6 | 0 | 1.69 |
| Massood Z. Atashbar | 7 | 0 | 2.03 |
| Maryam Shojaei Baghini | 8 | 86 | 29.67 |