FR880574A - Device for fixing the blades of blade frequency meters - Google Patents

Device for fixing the blades of blade frequency meters

Info

Publication number
FR880574A
FR880574A FR880574DA FR880574A FR 880574 A FR880574 A FR 880574A FR 880574D A FR880574D A FR 880574DA FR 880574 A FR880574 A FR 880574A
Authority
FR
France
Prior art keywords
blades
fixing
blade frequency
frequency meters
meters
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.)
Expired
Application number
Other languages
French (fr)
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.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
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 Hartmann and Braun AG filed Critical Hartmann and Braun AG
Application granted granted Critical
Publication of FR880574A publication Critical patent/FR880574A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
FR880574D 1940-05-09 1942-03-27 Device for fixing the blades of blade frequency meters Expired FR880574A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE880574X 1940-05-09

Publications (1)

Publication Number Publication Date
FR880574A true FR880574A (en) 1943-03-30

Family

ID=6823559

Family Applications (1)

Application Number Title Priority Date Filing Date
FR880574D Expired FR880574A (en) 1940-05-09 1942-03-27 Device for fixing the blades of blade frequency meters

Country Status (1)

Country Link
FR (1) FR880574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079555A (en) * 1958-01-21 1963-02-26 J B T Instr Inc Vibrating reed electro-responsive device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3079555A (en) * 1958-01-21 1963-02-26 J B T Instr Inc Vibrating reed electro-responsive device

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