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JPS56125634A - Sound level meter - Google Patents

Sound level meter

Info

Publication number
JPS56125634A
JPS56125634A JP2936080A JP2936080A JPS56125634A JP S56125634 A JPS56125634 A JP S56125634A JP 2936080 A JP2936080 A JP 2936080A JP 2936080 A JP2936080 A JP 2936080A JP S56125634 A JPS56125634 A JP S56125634A
Authority
JP
Japan
Prior art keywords
switch
terminal
noise levels
meter
displaying
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.)
Granted
Application number
JP2936080A
Other languages
Japanese (ja)
Other versions
JPS6352688B2 (en
Inventor
Shinji Motooka
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.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki Heavy Industries 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 Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP2936080A priority Critical patent/JPS56125634A/en
Publication of JPS56125634A publication Critical patent/JPS56125634A/en
Publication of JPS6352688B2 publication Critical patent/JPS6352688B2/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)

Abstract

PURPOSE:To necessitate only switch operation for the operator's measurement work by continuously detecting the maximum noise level at every predetermined time and displaying the average value thereof. CONSTITUTION:The signal from a microphone 4 is analogically read by a meter 6 which is actuated by the operation of a change-over switch 5. The switch 5 is changedover according to the noise levels detected. At the same time, the electric signal inputted to the meter 6 are led out to the output terminal 9 of a noise level detector 2. A terminal 10 inserted to the output terminal 9 of the detector 2 and is connected to the terminal 9 is provided to an arithmetic processing unit 3. The unit 3 has the functions of detecting the maximum value of the noise levels at every limited time with a limit time setting switch 11, making this detection operation for continuous 10 times of the limited time, averaging the ten maximum noise levels obtained in this manner and displaying the same in a digital display device 12.
JP2936080A 1980-03-07 1980-03-07 Sound level meter Granted JPS56125634A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2936080A JPS56125634A (en) 1980-03-07 1980-03-07 Sound level meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2936080A JPS56125634A (en) 1980-03-07 1980-03-07 Sound level meter

Publications (2)

Publication Number Publication Date
JPS56125634A true JPS56125634A (en) 1981-10-02
JPS6352688B2 JPS6352688B2 (en) 1988-10-19

Family

ID=12274011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2936080A Granted JPS56125634A (en) 1980-03-07 1980-03-07 Sound level meter

Country Status (1)

Country Link
JP (1) JPS56125634A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003302283A (en) * 2002-04-11 2003-10-24 Rion Co Ltd Noise and vibration level display method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996781A (en) * 1973-01-18 1974-09-12
JPS5244778U (en) * 1975-09-26 1977-03-30

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5198741A (en) * 1975-02-27 1976-08-31 MOKUZAIYOSETSUCHAKUZAISOSEIBUTSU

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4996781A (en) * 1973-01-18 1974-09-12
JPS5244778U (en) * 1975-09-26 1977-03-30

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003302283A (en) * 2002-04-11 2003-10-24 Rion Co Ltd Noise and vibration level display method

Also Published As

Publication number Publication date
JPS6352688B2 (en) 1988-10-19

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