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
Links
- 238000005259 measurement Methods 0.000 claims description 6
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Optical Recording Or Reproduction (AREA)
Description
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)
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.
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)
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 |
-
1986
- 1986-03-18 JP JP1986040047U patent/JPH0755603Y2/en not_active Expired - Lifetime
Patent Citations (2)
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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