Measurement of small strains in a noisy environment
Journal Article
·
· Rev. Sci. Instrum.; (United States)
A simple technique is demonstrated for measuring strains in an electromagnetically noisy environment using electrical strain gauges. For applications in which strains are produced electromagnetically in current-carrying structures, the noise signal can be much larger than the strain signal. Furthermore, the noise signal is at precisely the same frequency as the strain signal, making standard methods of synchronous signal detection difficult. This problem has been surmounted by modulating the detection circuit sensitivity. Bridge circuit modulation has been shown to effectively decouple the strain signal from the noise, even at very low strain levels of approx.10/sup -8/ m/m.
- Research Organization:
- Department of Nuclear Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- DOE Contract Number:
- AP07-79ID00019
- OSTI ID:
- 5450817
- Journal Information:
- Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 56:9; ISSN RSINA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synchronization of noisy systems by stochastic signals
On the Limits of EM Based Detection of Control Logic Injection Attacks In Noisy Environments
Proposed EBT-P quench detection technique in a magnetically noisy environment
Journal Article
·
Thu Jul 01 00:00:00 EDT 1999
· Physical Review. E, Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
·
OSTI ID:351864
On the Limits of EM Based Detection of Control Logic Injection Attacks In Noisy Environments
Conference
·
Mon Oct 18 00:00:00 EDT 2021
·
OSTI ID:2000965
Proposed EBT-P quench detection technique in a magnetically noisy environment
Conference
·
Thu Sep 01 00:00:00 EDT 1983
· Nucl. Technol./Fusion; (United States)
·
OSTI ID:6263572
Related Subjects
42 ENGINEERING
420500* -- Engineering-- Materials Testing
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ELECTRIC CONDUCTORS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
EQUIPMENT
MEASURING INSTRUMENTS
NOISE
PHYSICAL PROPERTIES
SENSITIVITY
STRAIN GAGES
STRAINS
THERMONUCLEAR REACTORS
420500* -- Engineering-- Materials Testing
440300 -- Miscellaneous Instruments-- (-1989)
47 OTHER INSTRUMENTATION
ELECTRIC CONDUCTORS
ELECTRICAL EQUIPMENT
ELECTRICAL PROPERTIES
ELECTRONIC CIRCUITS
EQUIPMENT
MEASURING INSTRUMENTS
NOISE
PHYSICAL PROPERTIES
SENSITIVITY
STRAIN GAGES
STRAINS
THERMONUCLEAR REACTORS