GB1072209A - Polarity detecting device - Google Patents

Polarity detecting device

Info

Publication number
GB1072209A
GB1072209A GB1714266A GB1714266A GB1072209A GB 1072209 A GB1072209 A GB 1072209A GB 1714266 A GB1714266 A GB 1714266A GB 1714266 A GB1714266 A GB 1714266A GB 1072209 A GB1072209 A GB 1072209A
Authority
GB
United Kingdom
Prior art keywords
polarity
switch
april
responsive
lamp
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
GB1714266A
Other languages
English (en)
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.)
ELEKTROMESSTECHNIK WILHELM FRA
Original Assignee
ELEKTROMESSTECHNIK WILHELM FRA
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 ELEKTROMESSTECHNIK WILHELM FRA filed Critical ELEKTROMESSTECHNIK WILHELM FRA
Publication of GB1072209A publication Critical patent/GB1072209A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/28—Measuring attenuation, gain, phase shift or derived characteristics of electric four pole networks, i.e. two-port networks; Measuring transient response
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/14—Indicating direction of current; Indicating polarity of voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB1714266A 1965-04-24 1966-04-19 Polarity detecting device Expired GB1072209A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ0027979 1965-04-24

Publications (1)

Publication Number Publication Date
GB1072209A true GB1072209A (en) 1967-06-14

Family

ID=7203145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1714266A Expired GB1072209A (en) 1965-04-24 1966-04-19 Polarity detecting device

Country Status (3)

Country Link
AT (1) AT261021B (https=)
GB (1) GB1072209A (https=)
NL (1) NL6605123A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600678A (en) * 1969-09-12 1971-08-17 Jim C Garrett Solid-state polarity tester for telephone equipment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3600678A (en) * 1969-09-12 1971-08-17 Jim C Garrett Solid-state polarity tester for telephone equipment

Also Published As

Publication number Publication date
DE1437914A1 (de) 1968-11-21
NL6605123A (https=) 1966-10-25
DE1437914B2 (de) 1970-02-05
AT261021B (de) 1968-04-10

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