Shelfmark

Bsi.2


Maker

British Scientific Instrument Research Assoc.


Subjects

Humidity--Measurement; Electric measurements; Adsorption; Ceramic materials


Title

The measurement of relative humidity by an electrical method utilising adsorption in ceramic elements: Progress report.


Description

This interim research report of the British Scientific Instrument Research Association summarizes the results so far of an investigation into determining relative humidity by measuring the adsorption of water vapour in porous ceramic elements, with a brief description of the apparatus constructed for producing atmospheres of known humidity.
Information is presented under these headings:- Introduction; Apparatus for Producing Atmospheres of Various Humidities; Selection of Porous Ceramic Bodies; Measurement of Electrical Resistance of Elements; General Form of Response Curves; Mechanism of Conduction; Effect of Sodium Chloride in the Elements; Effect of Applied Voltage; Rate of Response to Humidity Changes; Long-Term Variations in Element Resistance; Effect of Temperature; Heat of Adsorption; Effect of Carbon Dioxide; References; [diagrams].


Earliest Date

1950


Latest Date

1950


Pages

13


Address

20, Queen Anne Street, London, W. 1


Other Makers


Cat no

Index No. R.147


Contents List


Hardback


Prices


Index


Illustrations


General Ref


FM:22129