Gas sensor
First Claim
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1. A gas sensor for measuring a gas, the gas sensor comprising:
- a measuring electrode permeable to said gas to be measured;
said measuring electrode having structure defining first and second individual surfaces which can be subjected to the gas;
said individual surfaces being mutually adjacent and defining a space therebetween;
counter electrode means;
electrolyte means interconnecting said counter electrode and said measuring electrode and at least a portion of said electrolyte means being disposed in said space;
said structure being a conductive porous body defining said individual surfaces; and
,said electrolyte means including an electrolyte impregnated in said porous body.
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Abstract
A gas sensor has at least a measuring electrode and a counter electrode on an electrolyte layer. This gas sensor is improved with respect to the complete extent of the electrochemical reaction achieved of the gas molecules, which are to be detected, at the measuring electrode by the manner of determining an electrical charge developed or accumulated thereat. To solve this task, the invention provides that the measuring electrode (14) has component electrodes (14a, 14b) which enclose the electrolyte layer (11, 12) in the manner of a sandwich.
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Citations
12 Claims
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1. A gas sensor for measuring a gas, the gas sensor comprising:
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a measuring electrode permeable to said gas to be measured; said measuring electrode having structure defining first and second individual surfaces which can be subjected to the gas; said individual surfaces being mutually adjacent and defining a space therebetween; counter electrode means; electrolyte means interconnecting said counter electrode and said measuring electrode and at least a portion of said electrolyte means being disposed in said space; said structure being a conductive porous body defining said individual surfaces; and
,said electrolyte means including an electrolyte impregnated in said porous body. - View Dependent Claims (2, 3)
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4. A gas sensor for measuring a gas, the gas sensor comprising:
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a measuring electrode permeable to said gas and having first and second gas permeable component measuring electrodes defining respective surfaces which can be subjected to the gas; counter electrode means; said component measuring electrodes being mutually adjacent so as to define a space therebetween; electrolyte means disposed in said space and interconnecting said counter electrode means and said measuring electrode; said component measuring electrodes and said electrolyte means conjointly defining a sandwich-like structure; said measuring electrodes being a first measuring electrode and said space being a first space; a second measuring electrode having first and second ancillary measuring electrodes conjointly defining a second space therebetween; and
,said electrolyte means extending into said second space whereby said ancillary measuring electrodes and said electrolyte means also define a sandwich-like structure. - View Dependent Claims (5, 6, 7, 8, 9, 10)
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11. A gas sensor for measuring a gas, the gas sensor comprising:
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a measuring electrode permeable to said gas and having first and second gas permeable component measuring electrodes defining respective surfaces which can be subjected to the gas; said component measuring electrodes being mutually adjacent so as to define a space therebetween; counter electrode means; said counter electrode means having first and second component counter electrodes conjointly defining a space therebetween; electrolyte means disposed in said spaces and interconnecting said component measuring electrodes and said component counter electrodes; and
,said component measuring electrodes, said component counter electrodes and said electrolyte means conjointly defining a sandwich-like structure. - View Dependent Claims (12)
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Specification