SE8201985L - Vattennivaindikator - Google Patents

Vattennivaindikator

Info

Publication number
SE8201985L
SE8201985L SE8201985A SE8201985A SE8201985L SE 8201985 L SE8201985 L SE 8201985L SE 8201985 A SE8201985 A SE 8201985A SE 8201985 A SE8201985 A SE 8201985A SE 8201985 L SE8201985 L SE 8201985L
Authority
SE
Sweden
Prior art keywords
cable
signal
water level
beam splitter
reflection
Prior art date
Application number
SE8201985A
Other languages
Unknown language ( )
English (en)
Swedish (sv)
Inventor
B Dave
Original Assignee
Babcock & Wilcox Co
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 Babcock & Wilcox Co filed Critical Babcock & Wilcox Co
Publication of SE8201985L publication Critical patent/SE8201985L/

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/02—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Optical Couplings Of Light Guides (AREA)
SE8201985A 1981-03-31 1982-03-29 Vattennivaindikator SE8201985L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/249,307 US4397182A (en) 1981-03-31 1981-03-31 Method of aligning a water level indicator having a remote and a local readout display

Publications (1)

Publication Number Publication Date
SE8201985L true SE8201985L (sv) 1982-10-01

Family

ID=22942912

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8201985A SE8201985L (sv) 1981-03-31 1982-03-29 Vattennivaindikator

Country Status (7)

Country Link
US (1) US4397182A (fr)
EP (1) EP0061920A1 (fr)
JP (1) JPS57201819A (fr)
BR (1) BR8201920A (fr)
CA (1) CA1168903A (fr)
SE (1) SE8201985L (fr)
ZA (1) ZA821318B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5072616A (en) * 1983-12-23 1991-12-17 The Babcock & Wilcox Company Fiber optic level alarm
US4633711A (en) * 1984-09-04 1987-01-06 The Babcock & Wilcox Company Local display technique for fiber optic illuminator/hood system
ES2020484A6 (es) * 1990-06-29 1991-08-01 Repsol Quimica Sa Procedimiento de preparacion de homopolimeros de dienos conjugados y de copolimeros de dienos conjugados con otros dienos o compuestos vinil aromaticos.
US9316524B2 (en) 2012-08-08 2016-04-19 Eaton Corporation Visual indicator with sensor
US9316522B2 (en) * 2012-08-08 2016-04-19 Eaton Corporation Visual indicator with sensor
CN104848916A (zh) * 2015-03-23 2015-08-19 浙江海洋学院 一种利用光学原理的汽包水位检测装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH297676A (fr) * 1952-01-18 1954-03-31 Genevoise Instr Physique Installation pour la mesure, par voie photo-électrique, de la position d'un trait d'une graduation.
US3457018A (en) * 1965-07-26 1969-07-22 Lord Corp Dual reticle device
US3518005A (en) * 1967-01-04 1970-06-30 Us Army Optical boresight device
US3614238A (en) * 1968-01-05 1971-10-19 Itek Corp Bright line reticle apparatus and optical alignment methods
US3531205A (en) * 1968-01-15 1970-09-29 Hughes Aircraft Co Light beam aiming device
US3574467A (en) * 1969-07-09 1971-04-13 Nasa Method and apparatus for aligning a laser beam projector
US3713338A (en) * 1971-01-18 1973-01-30 Gen Motors Corp Fiber optic liquid level indicator
US3752587A (en) * 1971-09-09 1973-08-14 Philco Ford Corp Apparatus for boresighting a laser beam emitter device
US3718396A (en) * 1971-12-28 1973-02-27 Licentia Gmbh System for photographic production of semiconductor micro structures
US3782829A (en) * 1972-06-28 1974-01-01 Bell Telephone Labor Inc Lens alignment apparatus and method
US3813169A (en) * 1973-01-02 1974-05-28 P Kaestner Device for determining position and focus of an optical member
US3871772A (en) * 1973-04-23 1975-03-18 Tropel Eye examining instrument aligning means and method therefor
US3870416A (en) * 1974-01-09 1975-03-11 Bell Telephone Labor Inc Wafer alignment apparatus
DE2758742C2 (de) * 1977-12-29 1986-06-19 Klöckner-Humboldt-Deutz AG, 5000 Köln Vorrichtung zur Bearbeitung von fluchtenden Bohrungen
US4260254A (en) * 1979-04-30 1981-04-07 Hughes Aircraft Company Compact boresight tester for laser designators

Also Published As

Publication number Publication date
US4397182A (en) 1983-08-09
JPS6311608B2 (fr) 1988-03-15
CA1168903A (fr) 1984-06-12
EP0061920A1 (fr) 1982-10-06
BR8201920A (pt) 1983-03-08
JPS57201819A (en) 1982-12-10
ZA821318B (en) 1983-02-23

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