GB2003271A - Refractometer - Google Patents

Refractometer

Info

Publication number
GB2003271A
GB2003271A GB7832165A GB7832165A GB2003271A GB 2003271 A GB2003271 A GB 2003271A GB 7832165 A GB7832165 A GB 7832165A GB 7832165 A GB7832165 A GB 7832165A GB 2003271 A GB2003271 A GB 2003271A
Authority
GB
United Kingdom
Prior art keywords
gas
providing
enclosure
volume
distance
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.)
Withdrawn
Application number
GB7832165A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB7832165A priority Critical patent/GB2003271A/en
Publication of GB2003271A publication Critical patent/GB2003271A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G01L7/06—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the bellows type
    • G01L7/063—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the bellows type with mechanical transmitting or indicating means
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/32—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable
    • G01K5/42—Measuring temperature based on the expansion or contraction of a material the material being a fluid contained in a hollow body having parts which are deformable or displaceable the body being a bellows
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
    • G01L9/0033—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means
    • G01L9/0038—Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means using variations in capacitance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01W—METEOROLOGY
    • G01W1/00—Meteorology
    • G01W1/02—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed
    • G01W1/06—Instruments for indicating weather conditions by measuring two or more variables, e.g. humidity, pressure, temperature, cloud cover or wind speed giving a combined indication of weather conditions

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Immunology (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Atmospheric Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

A terrestrial refractometer for providing a measure of refractive index of the atmosphere at or near the surface of the earth comprises a gas- tight enclosure 16 containing a fixed mass of dry gas which at least approximates to an ideal gas, at least a part of the enclosure being movable in response to changes in the volume of the gas in accordance with changes in ambient temperature and pressure; sensing means 24 responsive to the position of said movable part; and means 34 for providing a signal related to the distance of the movable part from a feed point outside the enclosure and positioned so that an increase in the volume of the gas causes a decrease in said distance. The sensing means may be either a pivoted lever system or an electrical capacitor providing a digital output. <IMAGE>
GB7832165A 1977-08-30 1978-08-03 Refractometer Withdrawn GB2003271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7832165A GB2003271A (en) 1977-08-30 1978-08-03 Refractometer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3619477 1977-08-30
GB7832165A GB2003271A (en) 1977-08-30 1978-08-03 Refractometer

Publications (1)

Publication Number Publication Date
GB2003271A true GB2003271A (en) 1979-03-07

Family

ID=26263021

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7832165A Withdrawn GB2003271A (en) 1977-08-30 1978-08-03 Refractometer

Country Status (1)

Country Link
GB (1) GB2003271A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111781067A (en) * 2020-07-18 2020-10-16 淮阴工学院 Pipe network hydraulic pressure detection device
CN113834577A (en) * 2021-11-04 2021-12-24 华南理工大学 Temperature detection mechanism for building thermal environment monitoring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111781067A (en) * 2020-07-18 2020-10-16 淮阴工学院 Pipe network hydraulic pressure detection device
CN113834577A (en) * 2021-11-04 2021-12-24 华南理工大学 Temperature detection mechanism for building thermal environment monitoring

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)