GB1464302A - Wet bulb thermometer - Google Patents

Wet bulb thermometer

Info

Publication number
GB1464302A
GB1464302A GB1784274A GB1784274A GB1464302A GB 1464302 A GB1464302 A GB 1464302A GB 1784274 A GB1784274 A GB 1784274A GB 1784274 A GB1784274 A GB 1784274A GB 1464302 A GB1464302 A GB 1464302A
Authority
GB
United Kingdom
Prior art keywords
block
conductors
bulb
wet
temperature
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
GB1784274A
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.)
Wira and Mather and Platt Ltd
Original Assignee
Wira and Mather and Platt Ltd
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 to AU80441/75A priority Critical patent/AU495389B2/en
Application filed by Wira and Mather and Platt Ltd filed Critical Wira and Mather and Platt Ltd
Priority to GB1784274A priority patent/GB1464302A/en
Publication of GB1464302A publication Critical patent/GB1464302A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • 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
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • G01K1/18—Special arrangements for conducting heat from the object to the sensitive element for reducing thermal inertia

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

1464302 Wet-bulb temperature sensor WIRA 16 July 1975 [24 April 1974] 17842/74 Heading H1K [Also in Division G1] A sensing device for measuring wet-bulb temperatures comprises a block 1 of microporous or "foam" metal and electrical conductors 8, 9 for coupling the device to electrically-operated temperature indicating means, the conductors 8, 9 being coupled to the block 1 in such a way that in operation a potential is produced between the dependent upon the temperature of the block 1. When the block 1, which may be of stainless steel, is wetted its low thermal capacity, high surface area and high capillary attraction for water causes it to follow the wetbulb temperature of the atmosphere in which it is situated. The coupling of the conductors 8, 9 to the block 1 may be via a resistance thermometer or thermistor but in the preferred embodiments a thermocouple junction is employed. The conductors 8, 9 may be joined together to form a junction which is bonded to the block 1, preferably within a bore therein, but as shown one of the conductors 9 is of the same material as the block 1 and is bonded thereto at a location 10 spaced from that at which the thermocouple junction 5 is formed between the block 1 and the other conductor 8 of dissimilar material. In order to obtain a direct measure of the difference between wet-bulb and dry-bulb temperatures one of the conductors 8, 9 may include, spaced from the block 1, a temperature sensor of the same type as that associated with the block 1, connected so that the electrical outputs of the two sensors are in opposition.
GB1784274A 1975-07-16 1975-07-16 Wet bulb thermometer Expired GB1464302A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU80441/75A AU495389B2 (en) 1975-04-23 Wet bulb thermometer
GB1784274A GB1464302A (en) 1975-07-16 1975-07-16 Wet bulb thermometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1784274A GB1464302A (en) 1975-07-16 1975-07-16 Wet bulb thermometer

Publications (1)

Publication Number Publication Date
GB1464302A true GB1464302A (en) 1977-02-09

Family

ID=10102181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1784274A Expired GB1464302A (en) 1975-07-16 1975-07-16 Wet bulb thermometer

Country Status (1)

Country Link
GB (1) GB1464302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179202A (en) * 1985-07-12 1987-02-25 Jens Schmidt Hansen Equipment and method for calibration of a temperature sensing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2179202A (en) * 1985-07-12 1987-02-25 Jens Schmidt Hansen Equipment and method for calibration of a temperature sensing device
GB2179202B (en) * 1985-07-12 1989-07-26 Jens Schmidt Hansen Apparatus for calibration of temperature sensing instruments

Also Published As

Publication number Publication date
AU8044175A (en) 1976-10-28

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee