Electrochemical gas sensor
First Claim
1. An electrochemical gas sensor comprising sensing and counter electrodes mounted on the same side of a planar support;
- an electrolyte in contact with said sensing and counter electrodes;
means for controlling the access of gas to said sensing electrode; and
a barrier layer provided on said support on the opposite side to and extending over said sensing and counter electrodes, said barrier layer being positioned relative to said gas access control means and said support being non-electrically conductive and being sufficiently porous such that gas from said gas access control means is guided transversely and laterally through said support first to reach said sensing electrode and then to reach said counter electrode.
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Accused Products
Abstract
An electrochemical gas sensor comprises sensing and counter electrodes mounted on the same side of a planar support. An electrolyte is in contact with the sensing and counter electrodes. A capillary controls the access of gas to the sensing electrode. A barrier layer extends over the sensing and counter electrodes, the barrier layer being positioned relative to the capillary and the support being non-electrically conductive and being sufficiently porous such that gas from the capillary is guided transversely and laterally through the support first to reach the sensing electrode and then to reach the counter electrode.
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Citations
14 Claims
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1. An electrochemical gas sensor comprising sensing and counter electrodes mounted on the same side of a planar support;
- an electrolyte in contact with said sensing and counter electrodes;
means for controlling the access of gas to said sensing electrode; and
a barrier layer provided on said support on the opposite side to and extending over said sensing and counter electrodes, said barrier layer being positioned relative to said gas access control means and said support being non-electrically conductive and being sufficiently porous such that gas from said gas access control means is guided transversely and laterally through said support first to reach said sensing electrode and then to reach said counter electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
- an electrolyte in contact with said sensing and counter electrodes;
Specification