초록 ▼

A gas detecting apparatus is disclosed in which detection outputs from a plurality of semiconductor gas detecting elements different in gas detection characteristic from each other and previously-obtained characteristic values of the semiconductor gas detecting elements for a mixed gas are subjected

A gas detecting apparatus is disclosed in which detection outputs from a plurality of semiconductor gas detecting elements different in gas detection characteristic from each other and previously-obtained characteristic values of the semiconductor gas detecting elements for a mixed gas are subjected to operational processing to detect one or more specified constituent gases contained in the mixed gas, and in which when the specified constituent gas is detected, the detection information is announced by some means, and also the supply of gas is stopped or a supply gas is diluted.

대표청구항 ▼

A gas detecting apparatus for detecting at least one kind of specified constituent gas in a mixed gas made up of a plurality of kinds of constituent gases, comprising: (a) a plurality of semiconductor gas detecting elements different from each other in a gas detection characteristic based on the con

A gas detecting apparatus for detecting at least one kind of specified constituent gas in a mixed gas made up of a plurality of kinds of constituent gases, comprising: (a) a plurality of semiconductor gas detecting elements different from each other in a gas detection characteristic based on the conductivity of the element, said detection characteristic of each gas detecting element being exponential to gas concentration and detection outputs from said gas detecting elements with respect to the mixed gas being represented by a linear combintion of said detection outputs with respect to said constituent gases; (b) a processing device receiving detection outputs from said semiconductor gas detecting elements for processing said detection outputs and previously-stored characterisitc values, said characteristic values indicating a characteristic of each of said semiconduttor gas detecting elements for the mixed gas, said processing device using a linear operation; and (c) output means operated on the basis of the results of processing performed in said processing device.