DE10361991A1 - Telemetrically interrogated passive potential sensor - Google Patents

Telemetrically interrogated passive potential sensor Download PDF

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Publication number
DE10361991A1
DE10361991A1 DE10361991A DE10361991A DE10361991A1 DE 10361991 A1 DE10361991 A1 DE 10361991A1 DE 10361991 A DE10361991 A DE 10361991A DE 10361991 A DE10361991 A DE 10361991A DE 10361991 A1 DE10361991 A1 DE 10361991A1
Authority
DE
Germany
Prior art keywords
telemetrically
potential sensor
interrogated
passive potential
reflector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE10361991A
Other languages
German (de)
Inventor
Joerg Mueller
Anna Karilainen
Thomas Finnberg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technische Universitaet Hamburg TUHH
Tutech Innovation GmbH
Original Assignee
TUHH Technologie GmbH
Technische Universitaet Hamburg TUHH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TUHH Technologie GmbH, Technische Universitaet Hamburg TUHH filed Critical TUHH Technologie GmbH
Priority to DE10361991A priority Critical patent/DE10361991A1/en
Priority to PCT/EP2004/010714 priority patent/WO2005033719A1/en
Publication of DE10361991A1 publication Critical patent/DE10361991A1/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0002—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network
    • A61B5/0004—Remote monitoring of patients using telemetry, e.g. transmission of vital signals via a communication network characterised by the type of physiological signal transmitted
    • A61B5/0006—ECG or EEG signals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
    • A61B5/25—Bioelectric electrodes therefor
    • A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
    • A61B5/291—Bioelectric electrodes therefor specially adapted for particular uses for electroencephalography [EEG]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/26—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using modulation of waves other than light, e.g. radio or acoustic waves

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Veterinary Medicine (AREA)
  • Medical Informatics (AREA)
  • Physics & Mathematics (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Aufgabe dieser Erfindung ist die Messung von elektrischen Potentialen durch einen passiven Sensor, der telemetrisch abfragbar ist. Dazu wird an einen von zwei Reflektoren eines akustischen Oberflächenwellen-Elements (SAW-Reflektor) mit einer Anregungsstruktur, die über eine Antenne ein Hochfrequenzsignal empfängt und die Reflexion wieder aussendet, ein LC-Resonanzkreis angeschlossen. Als Kapazität dient eine Varaktordiode, deren Kapazität durch das zu messende elektrische Potential verändert wird und die so den Kreis verstimmt und damit das reflektierte Signal im Verhältnis zu dem des ungestörten Reflektors in Betrag und Phase verändert.The object of this invention is the measurement of electrical potentials by a passive sensor which can be interrogated by telemetry. For this purpose, an LC resonant circuit is connected to one of two reflectors of a surface acoustic wave element (SAW reflector) with an excitation structure, which receives an RF signal via an antenna and emits the reflection again. The capacitance is a varactor diode whose capacitance is changed by the electrical potential to be measured and which thus detunes the circuit and thus alters the reflected signal in magnitude and phase in relation to that of the undisturbed reflector.

DE10361991A 2003-09-27 2003-09-27 Telemetrically interrogated passive potential sensor Ceased DE10361991A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10361991A DE10361991A1 (en) 2003-09-27 2003-09-27 Telemetrically interrogated passive potential sensor
PCT/EP2004/010714 WO2005033719A1 (en) 2003-09-27 2004-09-24 Telemetrically interrogatable passive potential sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10361991A DE10361991A1 (en) 2003-09-27 2003-09-27 Telemetrically interrogated passive potential sensor

Publications (1)

Publication Number Publication Date
DE10361991A1 true DE10361991A1 (en) 2005-04-28

Family

ID=34399724

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10361991A Ceased DE10361991A1 (en) 2003-09-27 2003-09-27 Telemetrically interrogated passive potential sensor

Country Status (2)

Country Link
DE (1) DE10361991A1 (en)
WO (1) WO2005033719A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007071608A1 (en) * 2005-12-21 2007-06-28 Forschungsverbund Berlin E.V. Device, probe, and method for the galvanically decoupled transmission of a measuring signal

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9693708B2 (en) 2007-05-04 2017-07-04 Arizona Board Of Regents For And On Behalf Of Arizona State University Systems and methods for wireless transmission of biopotentials
GB0802727D0 (en) * 2008-02-14 2008-03-26 Isis Innovation Resonant sensor and method
RU2550697C1 (en) * 2013-10-24 2015-05-10 Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Южный федеральный университет Sensor based on surface acoustic waves to measure concentration of carbon dioxide
WO2017167594A1 (en) 2016-03-31 2017-10-05 Koninklijke Philips N.V. Wireless position determination
RU2758341C1 (en) * 2018-07-27 2021-10-28 Научно-Технический Центр "Радиотехнических Устройств И Систем" С Ограниченной Ответственностью Passive wireless sensor of magnetic field on surface acoustic waves

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820730C2 (en) * 1978-05-12 1982-01-28 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Method for the low-noise measurement of the amplitude or the power of an RF signal and device for carrying out the method
IL127699A0 (en) * 1998-12-23 1999-10-28 Bar Dov Aharon Method and device for non contact detection of external electric or magnetic fields
DE10010846A1 (en) * 2000-03-06 2001-09-20 Siemens Ag Appliance for determining measured variables corresponding to reactive resistance of sensor connected to surface acoustic wave (SAW) element matching network

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007071608A1 (en) * 2005-12-21 2007-06-28 Forschungsverbund Berlin E.V. Device, probe, and method for the galvanically decoupled transmission of a measuring signal
US7893683B2 (en) 2005-12-21 2011-02-22 Forschungverbund Berlin E.V. Device, probe, and method for the galvanically decoupled transmission of a measuring signal
DE102005061683B4 (en) * 2005-12-21 2011-12-08 Forschungsverbund Berlin E.V. Device, probe and method for the galvanically decoupled transmission of a measurement signal

Also Published As

Publication number Publication date
WO2005033719A1 (en) 2005-04-14

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8127 New person/name/address of the applicant

Owner name: TECHNISCHE UNIVERSITAET HAMBURG-HARBURG, 21073 HAMB

Owner name: TUTECH INNOVATION GMBH, 21079 HAMBURG, DE

8125 Change of the main classification

Ipc: G01R 29/24 AFI20051017BHDE

8131 Rejection