Name
Abstract | ||
|---|---|---|
Micro-Pirani vacuum sensors usually operate at hundreds of microwatts, which limits their application in battery-powered sensor systems. This paper reports a diode-based, low power consumption micro-Pirani vacuum sensor that has high sensitivity. Optimizations to the micro-Pirani vacuum sensor were made regarding two aspects. On the one hand, a greater temperature coefficient was obtained without increasing power consumption by taking advantage of series diodes; on the other hand, the sensor structure and geometries were redesigned to enlarge temperature variation. After that, the sensor was fabricated and tested. Test results indicated that the dynamic vacuum pressure range of the sensor was from 10(-1) to 10(4) Pa when the forward bias current was as low as 10 A with a power consumption of 50 mu W. Average sensitivity was up to 90 mu V/Pa and the sensitivity of unit power consumption increased to 1.8 V/W/Pa. In addition, the sensor could also work at a greater forward bias current for better sensor performance. |
Year | DOI | Venue |
|---|---|---|
2019 | 10.3390/s19010188 | SENSORS |
Keywords | Field | DocType |
highly sensitive,low power consumption,diode,micro-Pirani vacuum sensor | Diode,Temperature coefficient,Electronic engineering,Engineering,Optoelectronics,Power consumption,Biasing | Journal |
Volume | Issue | ISSN |
19 | 1.0 | 1424-8220 |
Citations | PageRank | References |
0 | 0.34 | 2 |
Authors | ||
7 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Debo Wei | 1 | 0 | 0.34 |
| Jianyu Fu | 2 | 0 | 0.68 |
| Ruiwen Liu | 3 | 0 | 0.34 |
| Ying Hou | 4 | 40 | 3.43 |
| Chao Liu | 5 | 1 | 0.70 |
| Weibing Wang | 6 | 34 | 7.90 |
| Dapeng Chen | 7 | 100 | 16.21 |