JPS62152270U - - Google Patents

Info

Publication number
JPS62152270U
JPS62152270U JP4004786U JP4004786U JPS62152270U JP S62152270 U JPS62152270 U JP S62152270U JP 4004786 U JP4004786 U JP 4004786U JP 4004786 U JP4004786 U JP 4004786U JP S62152270 U JPS62152270 U JP S62152270U
Authority
JP
Japan
Prior art keywords
circuit
servo
measurement
output
detection
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
JP4004786U
Other languages
Japanese (ja)
Other versions
JPH0755603Y2 (en
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 filed Critical
Priority to JP1986040047U priority Critical patent/JPH0755603Y2/en
Publication of JPS62152270U publication Critical patent/JPS62152270U/ja
Application granted granted Critical
Publication of JPH0755603Y2 publication Critical patent/JPH0755603Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Optical Recording Or Reproduction (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本考案によるサーボ利得測定装置の一
実施例を示すブロツク図、第2図は従来のフオー
カスサーボ系の測定を示すブロツク図、第3図は
フオーカスサーボ系及びトラツキングサーボ系の
周波数特性曲線図である。 1…サーボ利得測定装置、2A,2B…バツフ
ア回路、3A,3B…バンドパスフイルタ、4A
,4B…ローパスフイルタ、5…減算回路、6…
電圧計、7…発振回路、11…フオーカスサーボ
系。
Fig. 1 is a block diagram showing an embodiment of the servo gain measuring device according to the present invention, Fig. 2 is a block diagram showing measurement of a conventional focus servo system, and Fig. 3 is a focus servo system and tracking servo system. It is a frequency characteristic curve diagram of. 1... Servo gain measuring device, 2A, 2B... Buffer circuit, 3A, 3B... Band pass filter, 4A
, 4B...Low pass filter, 5...Subtraction circuit, 6...
Voltmeter, 7...oscillation circuit, 11...focus servo system.

Claims (1)

【実用新案登録請求の範囲】 検出回路によつて得られる検出出力を利得調整
回路を介してサーボ回路に供給し、検出出力に応
じてサーボ回路において補正するようになされた
サーボ系に対して、上記サーボ回路に外乱信号を
挿入し、その外乱信号と上記検出回路より得られ
るサーボ系の測定出力とを比較することによつて
サーボ利得を測定するサーボ利得測定装置におい
て、 上記検出回路より得られる測定出力を入力し、
該測定出力のうち上記外乱信号の基本周波数信号
成分を直流化して測定電圧を出力する測定信号処
理部と、 発振回路より得られる外乱信号の基本周波数信
号成分を直流化して基準電圧を出力する基準信号
処理部と、 上記測定電圧及び上記基準電圧とを減算する減
算回路と、 上記減算回路の演算結果を表示する表示手段と
、 を具えることを特徴とするサーボ利得測定装置。
[Claims for Utility Model Registration] For a servo system in which a detection output obtained by a detection circuit is supplied to a servo circuit via a gain adjustment circuit, and correction is made in the servo circuit according to the detection output, A servo gain measurement device that measures servo gain by inserting a disturbance signal into the servo circuit and comparing the disturbance signal with a measured output of the servo system obtained from the detection circuit, comprising: Enter the measurement output and
A measurement signal processing unit that converts the fundamental frequency signal component of the disturbance signal of the measurement output into a DC current and outputs a measurement voltage; and a standard that converts the fundamental frequency signal component of the disturbance signal obtained from the oscillation circuit into a DC current and outputs a reference voltage. A servo gain measuring device comprising: a signal processing section; a subtraction circuit that subtracts the measured voltage and the reference voltage; and display means that displays the calculation result of the subtraction circuit.
JP1986040047U 1986-03-18 1986-03-18 Servo gain measuring device for optical disk device Expired - Lifetime JPH0755603Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1986040047U JPH0755603Y2 (en) 1986-03-18 1986-03-18 Servo gain measuring device for optical disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986040047U JPH0755603Y2 (en) 1986-03-18 1986-03-18 Servo gain measuring device for optical disk device

Publications (2)

Publication Number Publication Date
JPS62152270U true JPS62152270U (en) 1987-09-26
JPH0755603Y2 JPH0755603Y2 (en) 1995-12-20

Family

ID=30853784

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986040047U Expired - Lifetime JPH0755603Y2 (en) 1986-03-18 1986-03-18 Servo gain measuring device for optical disk device

Country Status (1)

Country Link
JP (1) JPH0755603Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530711A (en) * 1978-08-22 1980-03-04 Toshiba Corp Plant property automatic diagnosis device
JPS5572609A (en) * 1978-11-24 1980-05-31 Toshiba Corp Testing process for turbine control system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5530711A (en) * 1978-08-22 1980-03-04 Toshiba Corp Plant property automatic diagnosis device
JPS5572609A (en) * 1978-11-24 1980-05-31 Toshiba Corp Testing process for turbine control system

Also Published As

Publication number Publication date
JPH0755603Y2 (en) 1995-12-20

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