JPS4326560B1 - - Google Patents

Info

Publication number
JPS4326560B1
JPS4326560B1 JP5966964A JP5966964A JPS4326560B1 JP S4326560 B1 JPS4326560 B1 JP S4326560B1 JP 5966964 A JP5966964 A JP 5966964A JP 5966964 A JP5966964 A JP 5966964A JP S4326560 B1 JPS4326560 B1 JP S4326560B1
Authority
JP
Japan
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
JP5966964A
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
Publication of JPS4326560B1 publication Critical patent/JPS4326560B1/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G01R19/10—Measuring sum, difference or ratio
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
    • G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
    • G01R17/10—AC or DC measuring bridges
    • G01R17/16—AC or DC measuring bridges with discharge tubes or semiconductor devices in one or more arms of the bridge, e.g. voltmeter using a difference amplifier
    • 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
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16566—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533
    • G01R19/16576—Circuits and arrangements for comparing voltage or current with one or several thresholds and for indicating the result not covered by subgroups G01R19/16504, G01R19/16528, G01R19/16533 comparing DC or AC voltage with one threshold

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Power Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Emergency Alarm Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
JP5966964A 1963-10-22 1964-10-22 Pending JPS4326560B1 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB41585/63A GB1048426A (en) 1963-10-22 1963-10-22 Improvements relating to potential difference detecting arrangements

Publications (1)

Publication Number Publication Date
JPS4326560B1 true JPS4326560B1 (ja) 1968-11-14

Family

ID=10420378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5966964A Pending JPS4326560B1 (ja) 1963-10-22 1964-10-22

Country Status (7)

Country Link
US (1) US3355729A (ja)
JP (1) JPS4326560B1 (ja)
BE (1) BE654691A (ja)
DE (1) DE1256320B (ja)
FR (1) FR1422918A (ja)
GB (1) GB1048426A (ja)
NL (1) NL6412297A (ja)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548398A (en) * 1968-01-11 1970-12-15 Walter E Strimling Switch position and continuity indicator for a pair of heating circuits
US3852734A (en) * 1972-09-28 1974-12-03 R Truax Antenna insulation failure detector
US4025850A (en) * 1975-10-01 1977-05-24 Joseph Spiteri Passive, solid state wide range voltage checker
FR2417764A1 (fr) * 1978-02-15 1979-09-14 Nudelmont Jean Claude Systeme de surveillance du degre de pollution et du risque d'incendie
DE4221922C1 (de) * 1992-07-03 1994-01-13 Bosch Gmbh Robert Wärmetönungssensor
US5953057A (en) * 1996-09-03 1999-09-14 Sensormatic Electronics Corporation Video termination detector with data receiver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907932A (en) * 1954-08-16 1959-10-06 Honeywell Regulator Co Phase discriminating apparatus
US2891195A (en) * 1957-12-03 1959-06-16 Ca Nat Research Council Lamp flasher with daylight-responsive inhibiting means
GB1013682A (en) * 1960-12-15 1965-12-15 English Electric Co Ltd Improvements in and relating to gas detecting apparatus
NL275018A (ja) * 1961-02-24

Also Published As

Publication number Publication date
GB1048426A (en) 1966-11-16
BE654691A (ja) 1965-02-15
US3355729A (en) 1967-11-28
NL6412297A (ja) 1965-04-23
FR1422918A (fr) 1966-01-03
DE1256320B (de) 1967-12-14

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