Design and Application of Uniaxially Sensitive Stress Sensor

Current stress sensors for microsystems face integration challenges and complex signal decoding. This paper proposes a real-time uniaxially sensitive stress sensor. It is obtained by simple combinations of bar resistors using their sensitivity differences in different axes. With the aid of a Wheatst...

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Main Authors: Kaituo Wu, Zixun Xiang, Xinbo Lu, Yichao Yan, Chunyang Wu, Tao Wang, Wanli Zhang
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/16/1/94
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author Kaituo Wu
Zixun Xiang
Xinbo Lu
Yichao Yan
Chunyang Wu
Tao Wang
Wanli Zhang
author_facet Kaituo Wu
Zixun Xiang
Xinbo Lu
Yichao Yan
Chunyang Wu
Tao Wang
Wanli Zhang
author_sort Kaituo Wu
collection DOAJ
description Current stress sensors for microsystems face integration challenges and complex signal decoding. This paper proposes a real-time uniaxially sensitive stress sensor. It is obtained by simple combinations of bar resistors using their sensitivity differences in different axes. With the aid of a Wheatstone bridge, the sensor can measure the uniaxial stress magnitude by simple calibration of the stress against the output voltage and detect the bidirectional stress magnitude and direction in a micro-zone by simple rotation. The theoretical sensitivity obtained from simulation is 0.087 mV/V·MPa when the X-bridge is stressed in the X-direction under 1 V of excitation, and the test sensitivity of the X-bridge prepared in this paper is 0.1 mV/V·MPa. The design is structurally and procedurally simple, exhibits better temperature stability, and reduces interface requirements, making it suitable for the health monitoring of multi-chip microsystem chips.
format Article
id doaj-art-a0bdd779e5d747eba890574e681c32a2
institution Kabale University
issn 2072-666X
language English
publishDate 2025-01-01
publisher MDPI AG
record_format Article
series Micromachines
spelling doaj-art-a0bdd779e5d747eba890574e681c32a22025-01-24T13:42:08ZengMDPI AGMicromachines2072-666X2025-01-011619410.3390/mi16010094Design and Application of Uniaxially Sensitive Stress SensorKaituo Wu0Zixun Xiang1Xinbo Lu2Yichao Yan3Chunyang Wu4Tao Wang5Wanli Zhang6State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, ChinaState Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 611731, ChinaCurrent stress sensors for microsystems face integration challenges and complex signal decoding. This paper proposes a real-time uniaxially sensitive stress sensor. It is obtained by simple combinations of bar resistors using their sensitivity differences in different axes. With the aid of a Wheatstone bridge, the sensor can measure the uniaxial stress magnitude by simple calibration of the stress against the output voltage and detect the bidirectional stress magnitude and direction in a micro-zone by simple rotation. The theoretical sensitivity obtained from simulation is 0.087 mV/V·MPa when the X-bridge is stressed in the X-direction under 1 V of excitation, and the test sensitivity of the X-bridge prepared in this paper is 0.1 mV/V·MPa. The design is structurally and procedurally simple, exhibits better temperature stability, and reduces interface requirements, making it suitable for the health monitoring of multi-chip microsystem chips.https://www.mdpi.com/2072-666X/16/1/94stress sensoruniaxial sensitiveWheatstone bridge
spellingShingle Kaituo Wu
Zixun Xiang
Xinbo Lu
Yichao Yan
Chunyang Wu
Tao Wang
Wanli Zhang
Design and Application of Uniaxially Sensitive Stress Sensor
Micromachines
stress sensor
uniaxial sensitive
Wheatstone bridge
title Design and Application of Uniaxially Sensitive Stress Sensor
title_full Design and Application of Uniaxially Sensitive Stress Sensor
title_fullStr Design and Application of Uniaxially Sensitive Stress Sensor
title_full_unstemmed Design and Application of Uniaxially Sensitive Stress Sensor
title_short Design and Application of Uniaxially Sensitive Stress Sensor
title_sort design and application of uniaxially sensitive stress sensor
topic stress sensor
uniaxial sensitive
Wheatstone bridge
url https://www.mdpi.com/2072-666X/16/1/94
work_keys_str_mv AT kaituowu designandapplicationofuniaxiallysensitivestresssensor
AT zixunxiang designandapplicationofuniaxiallysensitivestresssensor
AT xinbolu designandapplicationofuniaxiallysensitivestresssensor
AT yichaoyan designandapplicationofuniaxiallysensitivestresssensor
AT chunyangwu designandapplicationofuniaxiallysensitivestresssensor
AT taowang designandapplicationofuniaxiallysensitivestresssensor
AT wanlizhang designandapplicationofuniaxiallysensitivestresssensor