JPS5515087A - Acoustic field analyzer - Google Patents

Acoustic field analyzer

Info

Publication number
JPS5515087A
JPS5515087A JP8967178A JP8967178A JPS5515087A JP S5515087 A JPS5515087 A JP S5515087A JP 8967178 A JP8967178 A JP 8967178A JP 8967178 A JP8967178 A JP 8967178A JP S5515087 A JPS5515087 A JP S5515087A
Authority
JP
Japan
Prior art keywords
frequency components
acoustic field
circuits
converted
signals
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
JP8967178A
Other languages
Japanese (ja)
Inventor
Akira Niitsu
Hiroshi Matsumura
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP8967178A priority Critical patent/JPS5515087A/en
Publication of JPS5515087A publication Critical patent/JPS5515087A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

PURPOSE: To clarify change conditions or the difference from fundamental frequency components by displaying alternatively frequency componects of an acoustic field, which changes momently, and stored frequency components.
CONSTITUTION: Sound is gathered into mike 1 and is converted to electric signals and is supplied to series circuits 2a, 2b... after amplified by amplifier 3. Series circuits 2a, 2b... separate electric signals into respective frequencies by band-pass filters 4a, 4b... Separated signals are smoothed by low-pass filters 6a, 6b... after rectified by absolute value rectifier circuits 5a, 5b... These outputs are applied to D/A converter circuit 17 through switchlng circuits 7a, 7b... and are applied to control circuit 23 after converted to digital signals. Control circuit 23 displays alternatively frequency components of the acoustic field, which changes momently, and stored frequency components on display circuit 29.
COPYRIGHT: (C)1980,JPO&Japio
JP8967178A 1978-07-19 1978-07-19 Acoustic field analyzer Pending JPS5515087A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8967178A JPS5515087A (en) 1978-07-19 1978-07-19 Acoustic field analyzer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8967178A JPS5515087A (en) 1978-07-19 1978-07-19 Acoustic field analyzer

Publications (1)

Publication Number Publication Date
JPS5515087A true JPS5515087A (en) 1980-02-01

Family

ID=13977199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8967178A Pending JPS5515087A (en) 1978-07-19 1978-07-19 Acoustic field analyzer

Country Status (1)

Country Link
JP (1) JPS5515087A (en)

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