Poole-frenkel piezoconductive element and sensor
Abstract
A new class of highly sensitive piezoconductive strain sensor elements and sensors has been invented. The new elements function under conditions such that electrical conductivity is dominated by Poole-Frenkel transport. A substantial piezoconductive effect appears in this regime, allowing the new sensors to exhibit sensitivity to applied strain as much as two orders of magnitude in excess of prior art sensors based on doped silicon.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-CA), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1174970
- Patent Number(s):
- 6771083
- Application Number:
- 10/101,450
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01L - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING
Citation Formats
Habermehl, Scott D. Poole-frenkel piezoconductive element and sensor. United States: N. p., 2004.
Web.
Habermehl, Scott D. Poole-frenkel piezoconductive element and sensor. United States.
Habermehl, Scott D. Tue .
"Poole-frenkel piezoconductive element and sensor". United States. https://www.osti.gov/servlets/purl/1174970.
@article{osti_1174970,
title = {Poole-frenkel piezoconductive element and sensor},
author = {Habermehl, Scott D.},
abstractNote = {A new class of highly sensitive piezoconductive strain sensor elements and sensors has been invented. The new elements function under conditions such that electrical conductivity is dominated by Poole-Frenkel transport. A substantial piezoconductive effect appears in this regime, allowing the new sensors to exhibit sensitivity to applied strain as much as two orders of magnitude in excess of prior art sensors based on doped silicon.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {8}
}
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Works referenced in this record:
Characterization of tantalum oxynitride thin films as high-temperature strain gauges
journal, January 1995
- Ayerdi, I.; Castaño, E.; García-Alonso, A.
- Sensors and Actuators A: Physical, Vol. 46, Issue 1-3