JPS531549A - Environmental condition detector - Google Patents

Environmental condition detector

Info

Publication number
JPS531549A
JPS531549A JP4364977A JP4364977A JPS531549A JP S531549 A JPS531549 A JP S531549A JP 4364977 A JP4364977 A JP 4364977A JP 4364977 A JP4364977 A JP 4364977A JP S531549 A JPS531549 A JP S531549A
Authority
JP
Japan
Prior art keywords
environmental condition
condition detector
detector
environmental
condition
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
JP4364977A
Other languages
Japanese (ja)
Other versions
JPS5944678B2 (en
Inventor
Barukanri Hayachi
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.)
Lynes Inc
Original Assignee
Lynes Inc
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
Priority claimed from US05/699,953 external-priority patent/US4078232A/en
Application filed by Lynes Inc filed Critical Lynes Inc
Publication of JPS531549A publication Critical patent/JPS531549A/en
Publication of JPS5944678B2 publication Critical patent/JPS5944678B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/28—Electric signal transmission systems in which transmission is by pulses using pulse code
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
    • E21B47/135—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency using light waves, e.g. infrared or ultraviolet waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/02—Means for indicating or recording specially adapted for thermometers
    • G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/083—Means for indicating or recording, e.g. for remote indication electrical
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/26—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word, e.g. there is a given radix and the weights are powers of this radix

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Dc Digital Transmission (AREA)
  • Measuring Fluid Pressure (AREA)
JP52043649A 1976-06-25 1977-04-18 Environmental condition detection device Expired JPS5944678B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US000000699953 1976-06-25
US05/699,953 US4078232A (en) 1974-03-13 1976-06-25 Optical analog to digital converter

Publications (2)

Publication Number Publication Date
JPS531549A true JPS531549A (en) 1978-01-09
JPS5944678B2 JPS5944678B2 (en) 1984-10-31

Family

ID=24811620

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52043649A Expired JPS5944678B2 (en) 1976-06-25 1977-04-18 Environmental condition detection device

Country Status (5)

Country Link
JP (1) JPS5944678B2 (en)
FR (1) FR2356217A1 (en)
GB (1) GB1570758A (en)
MX (1) MX3524E (en)
NL (1) NL7706867A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56130169U (en) * 1980-03-05 1981-10-02

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216868A (en) * 1978-08-04 1980-08-12 Eaton Corporation Optical digital sensor for crane operating aid
GB8329518D0 (en) * 1983-11-04 1983-12-07 Spembly Ltd Pressure transducer/optical encoder
US4712006A (en) * 1985-08-27 1987-12-08 Shell Oil Company Steam quality measurement apparatus and method
KR920004757Y1 (en) * 1989-07-24 1992-07-18 삼성전자 주식회사 Programming switch of vcr

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56130169U (en) * 1980-03-05 1981-10-02

Also Published As

Publication number Publication date
NL7706867A (en) 1977-12-28
MX3524E (en) 1981-01-20
FR2356217A1 (en) 1978-01-20
GB1570758A (en) 1980-07-09
JPS5944678B2 (en) 1984-10-31

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