Abstract
In this paper we describe a self-powered micro-sensor that can be used for embedded measurement of static-strain. At the core of the proposed design is a linear floating-gate injector that can achieve more than 13 bits of precision in sensing, signal integration and non-volatile storage. The injectors are self-powered by piezoelectric transducers which convert mechanical energy due to strain-variations into electrical energy. A differential injector topology is then used to measure static-strain by integrating the difference between the signal energy generated during the positive and negative strain-cycles. We demonstrate the proof-of-concept using measurement results obtained from prototypes fabricated in a 0.5-μm standard CMOS process.
| Original language | English |
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| Pages | 1167-1170 |
| Number of pages | 4 |
| DOIs | |
| State | Published - 2012 |
| Event | 2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 - Seoul, Korea, Republic of Duration: May 20 2012 → May 23 2012 |
Conference
| Conference | 2012 IEEE International Symposium on Circuits and Systems, ISCAS 2012 |
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| Country/Territory | Korea, Republic of |
| City | Seoul |
| Period | 05/20/12 → 05/23/12 |