JPS624646B2 - - Google Patents

Info

Publication number
JPS624646B2
JPS624646B2 JP15406981A JP15406981A JPS624646B2 JP S624646 B2 JPS624646 B2 JP S624646B2 JP 15406981 A JP15406981 A JP 15406981A JP 15406981 A JP15406981 A JP 15406981A JP S624646 B2 JPS624646 B2 JP S624646B2
Authority
JP
Japan
Prior art keywords
noise
microphone
circuit
measurement
output
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.)
Expired
Application number
JP15406981A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5855721A (ja
Inventor
Itsuo Ono
Seiji Hori
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.)
Rion Co Ltd
Original Assignee
Rion 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 Rion Co Ltd filed Critical Rion Co Ltd
Priority to JP15406981A priority Critical patent/JPS5855721A/ja
Publication of JPS5855721A publication Critical patent/JPS5855721A/ja
Publication of JPS624646B2 publication Critical patent/JPS624646B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/14—Measuring mean amplitude; Measuring mean power; Measuring time integral of power

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
JP15406981A 1981-09-29 1981-09-29 環境騒音測定装置 Granted JPS5855721A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15406981A JPS5855721A (ja) 1981-09-29 1981-09-29 環境騒音測定装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15406981A JPS5855721A (ja) 1981-09-29 1981-09-29 環境騒音測定装置

Publications (2)

Publication Number Publication Date
JPS5855721A JPS5855721A (ja) 1983-04-02
JPS624646B2 true JPS624646B2 (enExample) 1987-01-31

Family

ID=15576207

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15406981A Granted JPS5855721A (ja) 1981-09-29 1981-09-29 環境騒音測定装置

Country Status (1)

Country Link
JP (1) JPS5855721A (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2551724B (en) * 2016-06-27 2022-04-06 Pambry Electronics Ltd Sound exposure meter

Also Published As

Publication number Publication date
JPS5855721A (ja) 1983-04-02

Similar Documents

Publication Publication Date Title
EP0850014B1 (en) Apparatus for measuring fetal heart rate
US5622180A (en) Device for measuring heartbeat rate
US4757453A (en) Body activity monitor using piezoelectric transducers on arms and legs
CN107438210A (zh) 一种体征检测耳机和体征检测方法
US20120197139A1 (en) Auto-diagnostic blood manometer
CN106851459A (zh) 入耳式耳机
JPS624646B2 (enExample)
US3977257A (en) Audio dosimeter
JPH05228121A (ja) 人体情報センサ
JPH04151526A (ja) 騒音自動測定装置
US4149526A (en) Method of measuring the heart pulse frequency and heart pulse frequency meter apparatus
JPH0325175B2 (enExample)
JPH0321174B2 (enExample)
US6342038B1 (en) Electronic pulse rate counter
JPH02166Y2 (enExample)
JP3682254B2 (ja) 心拍動計測装置
JP2690093B2 (ja) 電子血圧計
WO2019164073A1 (ko) 흡착 컵형 혈류변화 측정 센서와 이를 이용한 혈류변화 측정 장치 및 측정방법
JP3196853B2 (ja) 発語量計
JP5297184B2 (ja) 噛み数検出装置
JP2583910Y2 (ja) 音感知装置
CN115919271A (zh) 一种动态心电图与动态血压同步监测系统及方法
KR890004935Y1 (ko) 베어링 감지기
Toremalm et al. The Noise Dosimeters
JP2579848B2 (ja) インピーダンスオージオメータ