JPS55157106A - Measuring method and device for effective stylus tip radius - Google Patents

Measuring method and device for effective stylus tip radius

Info

Publication number
JPS55157106A
JPS55157106A JP6271679A JP6271679A JPS55157106A JP S55157106 A JPS55157106 A JP S55157106A JP 6271679 A JP6271679 A JP 6271679A JP 6271679 A JP6271679 A JP 6271679A JP S55157106 A JPS55157106 A JP S55157106A
Authority
JP
Japan
Prior art keywords
sound groove
groove
frequency
stylus tip
tip radius
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
JP6271679A
Other languages
Japanese (ja)
Other versions
JPS6044721B2 (en
Inventor
Norio Shibata
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP6271679A priority Critical patent/JPS6044721B2/en
Publication of JPS55157106A publication Critical patent/JPS55157106A/en
Publication of JPS6044721B2 publication Critical patent/JPS6044721B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

PURPOSE: To measure the effective stylus tip radius of a cartridge simply and efficiently, by comparing output levels obtained by reproducing a reference sound groove and a measurement sound groove where higher harmonic is recorded.
CONSTITUTION: The output level of a fundamental wave is used without correction as it is, and this level and the output level of the secondary higher harmonics are compared with each other as they are, and a comparatively small value is determined as the secondary distortion previously. Test record 1 has reference sound groove 3 and measurement sound groove 2 in the outside circumference side and the inside circumference side respectively, and the signal frequency of reference sound groove 3 is set to a frequency two or several times as high as the frquency of the signal recorded on measurement sound groove 2. According to the signal frequency of groove 3, the filter center frequency of band pass filter 7 is determined properly.
COPYRIGHT: (C)1980,JPO&Japio
JP6271679A 1979-05-23 1979-05-23 Effective needle tip radius measurement method and device Expired JPS6044721B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6271679A JPS6044721B2 (en) 1979-05-23 1979-05-23 Effective needle tip radius measurement method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6271679A JPS6044721B2 (en) 1979-05-23 1979-05-23 Effective needle tip radius measurement method and device

Publications (2)

Publication Number Publication Date
JPS55157106A true JPS55157106A (en) 1980-12-06
JPS6044721B2 JPS6044721B2 (en) 1985-10-05

Family

ID=13208331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6271679A Expired JPS6044721B2 (en) 1979-05-23 1979-05-23 Effective needle tip radius measurement method and device

Country Status (1)

Country Link
JP (1) JPS6044721B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS627935U (en) * 1985-06-28 1987-01-17
JPS62134508U (en) * 1986-02-17 1987-08-25

Also Published As

Publication number Publication date
JPS6044721B2 (en) 1985-10-05

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