An instrument for detecting a gas or measuring its concentration in a mixture, by measuring changes in thermal conductivity.
导热析气计（一种通过测量热导率变化来测定某种气体或混合物中气体浓度的仪器）
Example sentencesExamples
This sensor is compact and reliable for use in the cover gas hydrogen meter in place of the katharometer.
Consequently, all katharometer detectors must be carefully thermostatted and must be fitted with reference cells to help compensate for changes in pressure or flow rate.
In construction the katharometer comprises two chambers, each with an identical thermal conductivity sensor.
In recent communications the relative effects of gases of high and low thermal conductivity on the response of katharometers to the presence of eluted substances have been considered.
The properties of katharometers are described in relation to the analyses of binary and multi-component gas mixtures.
Origin
Early 20th century: from Greek katharos 'pure' + -meter.