JPS61189746U - - Google Patents

Info

Publication number
JPS61189746U
JPS61189746U JP1985072443U JP7244385U JPS61189746U JP S61189746 U JPS61189746 U JP S61189746U JP 1985072443 U JP1985072443 U JP 1985072443U JP 7244385 U JP7244385 U JP 7244385U JP S61189746 U JPS61189746 U JP S61189746U
Authority
JP
Japan
Prior art keywords
output
differentiator
low
pass filter
divider
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
JP1985072443U
Other languages
Japanese (ja)
Other versions
JPH051997Y2 (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 JP1985072443U priority Critical patent/JPH051997Y2/ja
Publication of JPS61189746U publication Critical patent/JPS61189746U/ja
Application granted granted Critical
Publication of JPH051997Y2 publication Critical patent/JPH051997Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Control Of Electric Motors In General (AREA)
  • Motor Or Generator Frames (AREA)

Description

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

第１図は本考案の一実施例を示すブロツク図、
第２図は従来の回転速度検出器の速度検出を行な
う場合の説明をする波形図である。 １０……タコジエネレータ、１１……低域フイ
ルタ、１２，１３……微分器、１４……割算器、
１５……開平演算器。 FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a waveform diagram illustrating a case where a conventional rotational speed detector performs speed detection. 10... Tachometer generator, 11... Low-pass filter, 12, 13... Differentiator, 14... Divider,
15... Square root calculator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] タコジエネレータの出力が入力される低域フイ
ルタと、前記低域フイルタの出力を微分する第１
微分器と、前記第１微分器の出力を微分する第２
微分器と、前記第２微分器の出力を前記低域フイ
ルタの出力で除算する割算器と、前記割算器の出
力を開平演算する開平演算器とを具備することを
特徴とする電動機回転速度検出器。 a low-pass filter to which the output of the tachometer generator is input; and a first filter for differentiating the output of the low-pass filter.
a differentiator, and a second differentiator that differentiates the output of the first differentiator.
A motor rotating device comprising: a differentiator, a divider that divides the output of the second differentiator by the output of the low-pass filter, and a square root calculator that performs a square root calculation of the output of the divider. speed detector.
JP1985072443U 1985-05-16 1985-05-16 Expired - Lifetime JPH051997Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985072443U JPH051997Y2 (en) 1985-05-16 1985-05-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985072443U JPH051997Y2 (en) 1985-05-16 1985-05-16

Publications (2)

Publication Number Publication Date
JPS61189746U true JPS61189746U (en) 1986-11-26
JPH051997Y2 JPH051997Y2 (en) 1993-01-19

Family

ID=30610848

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985072443U Expired - Lifetime JPH051997Y2 (en) 1985-05-16 1985-05-16

Country Status (1)

Country Link
JP (1) JPH051997Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228693A (en) * 2001-02-01 2002-08-14 Toshiba Corp Method and apparatus for measuring frequency and medium with processing program for measuring frequency stored therein

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002228693A (en) * 2001-02-01 2002-08-14 Toshiba Corp Method and apparatus for measuring frequency and medium with processing program for measuring frequency stored therein

Also Published As

Publication number Publication date
JPH051997Y2 (en) 1993-01-19

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