JPS566660A - Tachometer generator - Google Patents

Tachometer generator

Info

Publication number
JPS566660A
JPS566660A JP7907379A JP7907379A JPS566660A JP S566660 A JPS566660 A JP S566660A JP 7907379 A JP7907379 A JP 7907379A JP 7907379 A JP7907379 A JP 7907379A JP S566660 A JPS566660 A JP S566660A
Authority
JP
Japan
Prior art keywords
permanent magnet
variation
resistance means
voltage
temperature coefficient
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
JP7907379A
Other languages
Japanese (ja)
Inventor
Sumio Kobayashi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7907379A priority Critical patent/JPS566660A/en
Publication of JPS566660A publication Critical patent/JPS566660A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/02—Details
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/0094—Structural association with other electrical or electronic devices
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/25—Devices for sensing temperature, or actuated thereby

Abstract

PURPOSE:To prevent the effect by the temperature drift of permanent magnet of a tachometer generator by a method wherein a negative temperature coefficient resistance means is connected in series to the armature winding. CONSTITUTION:A negative temperature coefficient resistance means 8 is attached closely to an armature core 2 of a tachometer generater. By this way, although a voltage Eo induced in the armature winding is made to vary by the effect of temperature variation of permanent magnet 4, because the variation of voltage is compensated by the variation of resistance Rth of the negative temperature coefficient resistance means 8, the terminal voltage Et is not affected by the temperature drift of permanent magnet 4. Therefore the low-cost ferrite group magnet can be used for the permanent magnet 4.
JP7907379A 1979-06-25 1979-06-25 Tachometer generator Pending JPS566660A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7907379A JPS566660A (en) 1979-06-25 1979-06-25 Tachometer generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7907379A JPS566660A (en) 1979-06-25 1979-06-25 Tachometer generator

Publications (1)

Publication Number Publication Date
JPS566660A true JPS566660A (en) 1981-01-23

Family

ID=13679706

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7907379A Pending JPS566660A (en) 1979-06-25 1979-06-25 Tachometer generator

Country Status (1)

Country Link
JP (1) JPS566660A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498195A (en) * 1982-03-05 1985-02-05 Nippon Telegraph & Telephone Public Corporation Radio interference detection device for use in a multi-channel access angle-modulation radio system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4498195A (en) * 1982-03-05 1985-02-05 Nippon Telegraph & Telephone Public Corporation Radio interference detection device for use in a multi-channel access angle-modulation radio system

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