Title:
TEMPERATURE MEASUREMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/017421
Kind Code:
A1
Abstract:
Provided is a temperature-measurement system (10) capable of stably measuring the temperature at one or more locations without producing a standing wave even in a spacious area. The system is equipped with one or more sensor units (20), an antenna system (30) for electromagnetically coupling with the sensor units (20) and forming a resonance circuit, and a measurement means (40) connected to the antenna system (30). The sensor unit (20) is configured so as to connect a piezoelectric vibrator (21) and a coil (22). The antenna system (30) is configured so as to connect one or more antenna units (60) to a transmission line (32) in parallel. The antenna units (60) configure resonance circuits from coils (61) and capacitors (62). The transmission line (32) has one end thereof connected to the output terminal of the measurement means (40), and has the other end thereof terminating at a resistance (33) satisfying a characteristic impedance of the transmission line. The measurement means (40) supplies high-frequency power to the antenna system (30), and receives and observes power reflected from the antenna system (30).
Inventors:
KOJIMA JUNICHI (JP)
SATO MITSURU (JP)
TANAKA KOICHI (JP)
IWAO YASUHIRO (JP)
SATO MITSURU (JP)
TANAKA KOICHI (JP)
IWAO YASUHIRO (JP)
Application Number:
PCT/JP2013/069744
Publication Date:
January 30, 2014
Filing Date:
July 22, 2013
Export Citation:
Assignee:
FURUYA METAL CO LTD (JP)
SHOWA MFG (JP)
FUKUDA CRYSTAL LAB (JP)
SHOWA MFG (JP)
FUKUDA CRYSTAL LAB (JP)
International Classes:
G01K1/02; G01K7/32
Foreign References:
| JP2008139256A | 2008-06-19 | |||
| JP2011137737A | 2011-07-14 | |||
| JPS5981146U | 1984-06-01 | |||
| JP2010211381A | 2010-09-24 | |||
| JP2004348496A | 2004-12-09 |
Attorney, Agent or Firm:
NISHIWAKI, Tamio (JP)
Tamio Nishiwaki (JP)
Tamio Nishiwaki (JP)
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