Paper Titles
Stress Analysis of Holes in Thick Plates
p.153
Local Strain Imaging during Mechanical Loading of Lamellar Microstructures in Titanium Based Alloys
p.159
Industrial Applications of Thermoelastic Stress Analysis
p.165
Photoelastic Investigation of Friction and Residual Stress in Shrink-Fitted Shafts and Hubs
p.171
Development of Metallic Digital Strain Gauges
p.179
Detecting Damage in Graphite/Epoxy Composites Using Impedance-Based Structural Health Monitoring
p.185
The Use of Fibre Optic Sensors for Damage Detection and Location in Structural Materials
p.191
Development of a Temperature Calibration Device for Thermoelastic Stress Analysis
p.197
Load Cell Ringing in High Rate Compression Tests
p.205

Development of Metallic Digital Strain Gauges

Article Preview

Abstract:

A joint Brunel-Southampton Universities’ research team has developed digital strain gauges based on a metallic triple-beam resonator structure with thick-film piezoelectric sensor elements. The resonator, an oscillating structure vibrating at resonance, is designed such that its resonant frequency is a function of the measurand. The resonator substrate was fabricated by a double-sided photochemical etching technique and the thick-film piezoelectric elements were deposited by a standard screen-printing process. The new metallic digital strain gauges can be used on stiff structures, have high overload capacities, low power consumption, frequency output for digital processing, and offer prospects for wireless-batteryless operation. The device can be easily mass-produced at low cost for use in a wide range of measuring systems, e.g. load cells, weighing machines, torque transducers and pressure sensors.

You might also be interested in these eBooks
Advances in Experimental Mechanics View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volumes 1-2)

Pages:

179-184

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.1-2.179

Citation:

Cite this paper

Online since:

September 2004

Authors:

T. Yan, B.E. Jones, R.T. Rakowski, M.J. Tudor, S.P. Beeby, Nicholas M. White

Keywords:

Digital Strain Gauge, Load, Metallic Triple-Beam Tuning Fork, Resonator, Torque

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2004 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] R.M. Langdon. Resonator sensors - a review, J. Phys. E: Sci. Instrum., Vol. 18 (1985), pp.103-115.

Google Scholar

[2] J.A. Lethbridge, A. Cheshmehdoost, C.M. France and B.E. Jones. An optical-fibre hybrid pressure transducer employing a mechanical resonator, Sensors and Actuators A, Vol. 37-38 (1993), pp.480-483.

DOI: 10.1016/0924-4247(93)80082-r

Google Scholar

[3] A. Cheshmehdoost and B.E. Jones. Design and performance characteristics of an integrated high-capacity DETF-based force sensor, Sensors and Actuators A, Vol. 52 (1996), pp.99-102.

DOI: 10.1016/0924-4247(96)80132-4

Google Scholar

[4] B.E. Jones, A. Cheshmehdoost, A.J. Barker, P.B. Mookherjee, D.S. Randall, R.T. Rakowski, D. Rees, S.N. Crowther, P.W. fry and M.J. Rudkin. A pressure transducer using a metallic tuning fork with thin film piezoelectric drive and pick-up, Sensors and their Applications VIII, Eds. A. T. Augousti and N. M. White, September 1997, Bristol: Institute of Physics Publishing, pp.77-82.

DOI: 10.1016/s0924-4247(97)01513-6

Google Scholar

[5] N. Whitehead, A. Cheshmehdoost, A. Verrall, and B.E. Jones. Torque sensor employing a mechanical resonator, Sensors and Actuators A Vol. 60 (1997), pp.29-31.

DOI: 10.1016/s0924-4247(96)01415-x

Google Scholar

[6] B.E. Jones and N.M. White, Metallic resonators, Patent Application, GB0302585·5 (2003).

Google Scholar

[7] T. Yan, B.E. Jones, R.T. Rakowski, M.J. Tudor, S.P. Beeby and N.M. White. Thick-film PZT-metallic triple beam resonator, Electronics Letters, Vol. 39 (2003), pp.982-983.

DOI: 10.1049/el:20030611

Google Scholar

[8] C. Barthod, Y. Teisseyre, C. Gehin and G. Gautier. Resonant force sensor using a PLL electronics, Sensors and Actuators A, Vol. 104 (2003), pp.143-150.

DOI: 10.1016/s0924-4247(03)00005-0

Google Scholar

[9] T. Yan, B.E. Jones, R.T. Rakowski, M.J. Tudor, S.P. Beeby and N.M. White. Metallic triplebeam resonant force sensor with thick-film printed piezoelectric vibration excitation and detection mechanisms, Sensors and their Applications XII, Eds. S.J. Prosser and E. Lewis, Bristol: Institute of Physics Publishing, September 2003, pp.77-82.

DOI: 10.1201/9781482289619-18

Google Scholar