Measuring apparatus for the quantitative determination of a component of a gas mixture
OwnerRudi Schmittinventor
Life of this patent
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Abstract
An improvement in a measuring apparatus for the quantitative determination of a component of a gas sample. The apparatus takes a charge of a predetermined volume of the gas mixture into a metering pump which then pushes it through the absorption unit which adsorbs or absorbs a component of the gas. A probe is used for the intake of the gas and the probe has in the region of its intake opening a thermocouple. In addition, from the cable leading from the thermocouple a reference sensing device such as a second thermocouple is placed in differential connection. A single converter is used for indication of the temperature value and a microcomputer may be used to substantially automate the process.
Claims13
An improved measuring apparatus for the quantitative determination of a component of a gas mixture of the type having a sorption unit containing material which sorbs said component, a metering pump for forcing a predetermined volume of the gas mixture through the sorption unit, the gas mixture being drawn into the metering pump by a probe which opens into the gas mixture for intake of said predetermined volume and a device for measuring a parameter of the gas which emerges from the sorption unit, the improvement characterized by the probe having a thermocouple in the region of the intake opening and a reference sensing device in a cable from the thermocouple in differential connection, and further comprising a signal converter for indication of the temperature values.
Dependencies are inferred from the claim text.