JP2005156569A5 - - Google Patents

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Publication number
JP2005156569A5
JP2005156569A5 JP2005037262A JP2005037262A JP2005156569A5 JP 2005156569 A5 JP2005156569 A5 JP 2005156569A5 JP 2005037262 A JP2005037262 A JP 2005037262A JP 2005037262 A JP2005037262 A JP 2005037262A JP 2005156569 A5 JP2005156569 A5 JP 2005156569A5
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JP
Japan
Prior art keywords
pressure
resonance frequency
pressure sensor
frequency
detecting
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Application number
JP2005037262A
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Japanese (ja)
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JP3883555B2 (en
JP2005156569A (en
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Priority to JP2005037262A priority Critical patent/JP3883555B2/en
Priority claimed from JP2005037262A external-priority patent/JP3883555B2/en
Publication of JP2005156569A publication Critical patent/JP2005156569A/en
Publication of JP2005156569A5 publication Critical patent/JP2005156569A5/ja
Application granted granted Critical
Publication of JP3883555B2 publication Critical patent/JP3883555B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Claims (2)

圧力変化により容量が変化するコンデンサと、アンテナコイルと、記憶素子とを含む圧力センサと、
前記圧力センサのコンデンサとアンテナコイルにより定まる共振周波数を検出するための周波数走査手段と、前記共振周波数を検出する共振周波数検出手段と、前記共振周波数から圧力に換算する圧力換算手段とから構成された圧力測定装置とを有し、
前記圧力測定装置により前記圧力センサの共振周波数を検出し、その周波数に基づいた圧力値を前記記憶素子に時間情報とともに履歴情報として書き込むことを特徴とする圧力計測システム。 A pressure sensor including a capacitor whose capacitance is changed by a pressure change, an antenna coil, and a memory element;
A frequency scanning unit for detecting a resonance frequency determined by a capacitor and an antenna coil of the pressure sensor; a resonance frequency detection unit for detecting the resonance frequency; and a pressure conversion unit for converting the resonance frequency into a pressure. A pressure measuring device,
A pressure measurement system, wherein the pressure measurement device detects a resonance frequency of the pressure sensor, and writes a pressure value based on the frequency as history information together with time information in the storage element. 前記履歴情報を読み出す場合、前記圧力測定装置は前記圧力センサへ向けて電力搬送波信号を送信し、前記圧力センサの電源を供給した後さらに読み出し命令を送信し、さらに前記圧力センサから送信される圧力履歴を受信することを特徴とする請求項１記載の圧力計測システム。 When reading the history information, the pressure measuring device transmits a power carrier signal toward the pressure sensor, further supplies a read command after supplying power to the pressure sensor, and further transmits a pressure transmitted from the pressure sensor. The pressure measurement system according to claim 1, wherein a history is received .
JP2005037262A 2005-02-15 2005-02-15 Pressure measurement system Expired - Fee Related JP3883555B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005037262A JP3883555B2 (en) 2005-02-15 2005-02-15 Pressure measurement system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005037262A JP3883555B2 (en) 2005-02-15 2005-02-15 Pressure measurement system

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2002326504A Division JP3659956B2 (en) 2002-11-11 2002-11-11 Pressure measuring device and pressure measuring system

Publications (3)

Publication Number Publication Date
JP2005156569A JP2005156569A (en) 2005-06-16
JP2005156569A5 true JP2005156569A5 (en) 2006-12-14
JP3883555B2 JP3883555B2 (en) 2007-02-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005037262A Expired - Fee Related JP3883555B2 (en) 2005-02-15 2005-02-15 Pressure measurement system

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JP (1) JP3883555B2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
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JP2007317084A (en) * 2006-05-29 2007-12-06 Nec Tokin Corp Sensor node and network system using same
US7948380B2 (en) * 2006-09-06 2011-05-24 3M Innovative Properties Company Spatially distributed remote sensor
JP4878540B2 (en) * 2006-10-27 2012-02-15 応用計測工業株式会社 Optically fed measurement method and optically fed measuring device used therefor
US9658178B2 (en) 2012-09-28 2017-05-23 General Electric Company Sensor systems for measuring an interface level in a multi-phase fluid composition
US20110320142A1 (en) * 2010-06-28 2011-12-29 General Electric Company Temperature independent pressure sensor and associated methods thereof
US9538657B2 (en) 2012-06-29 2017-01-03 General Electric Company Resonant sensor and an associated sensing method
US10746680B2 (en) * 2006-11-16 2020-08-18 General Electric Company Sensing system and method
US9536122B2 (en) 2014-11-04 2017-01-03 General Electric Company Disposable multivariable sensing devices having radio frequency based sensors
US10914698B2 (en) 2006-11-16 2021-02-09 General Electric Company Sensing method and system
JP4496204B2 (en) * 2006-12-15 2010-07-07 デジタル・インフォメーション・テクノロジー株式会社 Wireless tag
JP4886577B2 (en) * 2007-04-06 2012-02-29 新日本製鐵株式会社 Corrosion rate measuring sensor, apparatus, and corrosion rate measuring method
JP5519127B2 (en) * 2008-07-09 2014-06-11 株式会社ブリヂストン Tire information detection system
US7779682B2 (en) * 2008-10-06 2010-08-24 Kulite Semiconductor Products, Inc. Dual purpose pressure sensor
US8542023B2 (en) 2010-11-09 2013-09-24 General Electric Company Highly selective chemical and biological sensors
JP5795522B2 (en) * 2011-11-15 2015-10-14 株式会社東海理化電機製作所 Control device for tire pressure monitoring system
GB2499181B (en) * 2011-12-20 2016-01-20 Silent Sensors Ltd Measurement sensor
WO2014031749A1 (en) 2012-08-22 2014-02-27 General Electric Company Wireless system and method for measuring an operative condition of a machine
US10598650B2 (en) 2012-08-22 2020-03-24 General Electric Company System and method for measuring an operative condition of a machine
JP6152716B2 (en) * 2012-08-27 2017-06-28 Tdk株式会社 Antenna device
US10684268B2 (en) 2012-09-28 2020-06-16 Bl Technologies, Inc. Sensor systems for measuring an interface level in a multi-phase fluid composition
JP6450839B2 (en) 2015-05-20 2019-01-09 株式会社サンノハシ Bolt, control device, and strain measurement system
JP2017049010A (en) * 2015-08-31 2017-03-09 三菱電機株式会社 Electromagnetic field probe

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