Capability of Impedance Measurement Using Spread Spectrum Time-Domain Reflectometry
- Univ. of Utah-Asia Campus, Incheon (Korea, Republic of); University of Utah
- Univ. of Utah, Salt Lake City, UT (United States)
- LiveWire Innovation, Camarillo, CA (United States)
- Univ. of Florida, Gainesville, FL (United States)
Spread spectrum time-domain reflectometry (SSTDR) has been proposed for measuring electrical impedance on live, energized systems, in electrically noisy environments, or for measuring multiple channels simultaneously. Here we evaluate the capability of SSTDR for impedance measurement from near dc to 96 MHz and find that they agree very well with measurements from a vector network analyzer (VNA). Time gating is used to remove (calibrate out) transmission line effects. We evaluate the frequency ranges over which SSTDR at different modulation frequencies is accurate for the measurement of series resistive–capacitive ( RC ) loads and observe that fusing measurements from multiple modulation frequencies can broaden the effective measurement bandwidth.
- Research Organization:
- Univ. of Utah, Salt Lake City, UT (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
- Grant/Contract Number:
- EE0008169
- OSTI ID:
- 2234336
- Journal Information:
- IEEE Transactions on Instrumentation and Measurement, Journal Name: IEEE Transactions on Instrumentation and Measurement Vol. 72; ISSN 0018-9456
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
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