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SAWR dynamic strain sensor detection mechanism for high-temperature harsh-environment wireless applications

Journal Article · · Measurement
 [1];  [2];  [2]
  1. University of Maine, Orono, ME (United States); University of Maine
  2. University of Maine, Orono, ME (United States)
High-temperature harsh-environment dynamic strain sensors are needed in multiple contemporary industrial and defense monitoring and control applications, in particular in power plants, metal manufacturing, and aerospace industries. Surface acoustic wave resonator (SAWR) technology stands out as an ideal sensor platform due to attractive technological features such as: small size, capability of wireless operation, battery-free operation, and resilience to high-temperatures. The SAWR dynamic strain sensor detection mechanism discussed in this paper reveals that both frequency and magnitude of the dynamic strain signal can be directly measured. Moreover, in-phase and quadrature component analyses of the measured free-resonating SAWR signal exposed to the dynamic strain perturbation show that both frequency and amplitude modulation are present. Furthermore, the results confirm the appropriateness of the SAWR sensor to detect both the frequency and magnitude of dynamic strain, making this technology very attractive for dynamic strain sensor applications, including situations that require wireless operation in high-temperature harsh-environments.
Research Organization:
University of Maine, Orono, ME (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FE0007379; FE0026217; FE0031550
OSTI ID:
2290242
Alternate ID(s):
OSTI ID: 1614142
OSTI ID: 1542547
Journal Information:
Measurement, Journal Name: Measurement Vol. 126; ISSN 0263-2241
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (3)