JPS6427534A - Pulse wave meter - Google Patents

Pulse wave meter

Info

Publication number
JPS6427534A
JPS6427534A JP18399587A JP18399587A JPS6427534A JP S6427534 A JPS6427534 A JP S6427534A JP 18399587 A JP18399587 A JP 18399587A JP 18399587 A JP18399587 A JP 18399587A JP S6427534 A JPS6427534 A JP S6427534A
Authority
JP
Japan
Prior art keywords
signal
digital signal
photodetector
pulse wave
light
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.)
Pending
Application number
JP18399587A
Other languages
Japanese (ja)
Inventor
Masaki Takahashi
Shuji Hattori
Toshiyoshi Yamamoto
Tetsuo Obata
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP18399587A priority Critical patent/JPS6427534A/en
Publication of JPS6427534A publication Critical patent/JPS6427534A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)

Abstract

PURPOSE:To enhance the reproducibility and reliability of measurement and to simplify the measurement itself, by directly converting a pulse wave signal or living body signal to a digital signal by an analogue-digital converter and analyzing the frequency of the digital signal to output said signal. CONSTITUTION:When a finger is inserted between a light emitting element 2 and a photodetector 3, since the blood in the tip of the finger absorbs light (about 600-870Angstrom ), the quantity of the light reaching the photodetector 3 changes by an increase and decrease in a blood amount. The resistance value of the photodetector 3 changes corresponding to the change quantity of light showing the increase and decrease in the blood amount. Only a pulse wave signal is taken out by a detector 7 to be inputted to an A/D converter 5. After the analogue signal is converted to a digital signal, the digital signal is operationally processed by an operator 6. In the operation, harmonic analysis being one of the technological analysis of waveform data is performed using FFT (high speed Fourier transform). By comparing the ratio of each higher harmonic component to a fundamental wave, the judgement of a waveform can be easily performed and a judge result is outputted in a numerical value.
JP18399587A 1987-07-23 1987-07-23 Pulse wave meter Pending JPS6427534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18399587A JPS6427534A (en) 1987-07-23 1987-07-23 Pulse wave meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18399587A JPS6427534A (en) 1987-07-23 1987-07-23 Pulse wave meter

Publications (1)

Publication Number Publication Date
JPS6427534A true JPS6427534A (en) 1989-01-30

Family

ID=16145479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18399587A Pending JPS6427534A (en) 1987-07-23 1987-07-23 Pulse wave meter

Country Status (1)

Country Link
JP (1) JPS6427534A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994015526A1 (en) * 1993-01-07 1994-07-21 Seiko Epson Corporation Pulse wave analyzer, and diagnosis apparatus using the same
JPH07204166A (en) * 1994-01-26 1995-08-08 Matsushita Electric Ind Co Ltd Monitoring device
EP0698371A1 (en) 1994-08-17 1996-02-28 Seiko Instruments Inc. Biosignal display apparatus
KR20020042588A (en) * 2002-05-11 2002-06-05 조기영 Fingerprint sensor using blood flow to recognize living bodies
KR100471645B1 (en) * 2002-07-09 2005-03-10 씨큐트로닉스 (주) Apparatus and method for detecting a forged fingerprint for fingerprint input device
US6923769B2 (en) 2001-05-31 2005-08-02 Denso Corporation Method and apparatus for monitoring biological abnormality and blood pressure
CN113740651A (en) * 2021-09-06 2021-12-03 苏州溯驭技术有限公司 Quality detection method suitable for three-phase frequency converter input power grid
CN113740651B (en) * 2021-09-06 2024-06-04 苏州溯驭技术有限公司 Quality detection method suitable for three-phase frequency converter input power grid

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1127322C (en) * 1993-01-07 2003-11-12 精工爱普生株式会社 Pulse wave analyzer, and diagnosis apparatus using the same
WO1994015526A1 (en) * 1993-01-07 1994-07-21 Seiko Epson Corporation Pulse wave analyzer, and diagnosis apparatus using the same
US7465274B2 (en) 1993-01-07 2008-12-16 Seiko Epson Corporation Diagnostic apparatus for analyzing arterial pulse waves
US6261235B1 (en) 1993-01-07 2001-07-17 Seiko Epson Corporation Diagnostic apparatus for analyzing arterial pulse waves
US6364842B1 (en) 1993-01-07 2002-04-02 Seiko Epson Corporation Diagnostic apparatus for analyzing arterial pulse waves
US7192402B2 (en) 1993-01-07 2007-03-20 Seiko Epson Corporation Diagnostic apparatus for analyzing arterial pulse waves
US6767329B2 (en) 1993-01-07 2004-07-27 Seiko Epson Corporation Diagnostic apparatus for analyzing arterial pulse waves
JPH07204166A (en) * 1994-01-26 1995-08-08 Matsushita Electric Ind Co Ltd Monitoring device
EP0698371A1 (en) 1994-08-17 1996-02-28 Seiko Instruments Inc. Biosignal display apparatus
US6923769B2 (en) 2001-05-31 2005-08-02 Denso Corporation Method and apparatus for monitoring biological abnormality and blood pressure
KR20020042588A (en) * 2002-05-11 2002-06-05 조기영 Fingerprint sensor using blood flow to recognize living bodies
KR100471645B1 (en) * 2002-07-09 2005-03-10 씨큐트로닉스 (주) Apparatus and method for detecting a forged fingerprint for fingerprint input device
CN113740651A (en) * 2021-09-06 2021-12-03 苏州溯驭技术有限公司 Quality detection method suitable for three-phase frequency converter input power grid
CN113740651B (en) * 2021-09-06 2024-06-04 苏州溯驭技术有限公司 Quality detection method suitable for three-phase frequency converter input power grid

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