http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2234820-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_cc282a5feeced8740165eb8bbebeafa4 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10T29-435 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-225 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-22 |
| filingDate | 1990-08-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4c6cd49cd2b9f4392e8d19e9ddbf5230 |
| publicationDate | 1991-02-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2234820-A |
| titleOfInvention | capacitive element and method for its manufacture |
| abstract | A capacitive humidity sensor (6) capable of being connected to a measurement device of dielectric factor and a method for producing the sensor. The sensor comprises a dielectric e.g. polymer layer (3), whose dielectric factor changes according to the moisture content absorbed in the layer, and at least two conductive electrode layers (2, 1) enclosing the dielectric layer (3), where one of the conductive layers (2) of the capacitor construction is provided with a random pattern of clefts (7), which allow an immediate communication of ambient air with the dielectric layer (3). The dielectric layer (3) has a solid structure without cracks corresponding to the clefts (7) of the conductive layers (2). As described the dielectric (3) is of cellulose acetate butyrate and the electrode (2) is of chromium which develops clefts by self-constriction when formed as a thin layer an a plasticized dielectric and then baked. The base (4) is of glass. A protective insulating layer (5) allows water vapour to diffuse through it. The construction according to the invention offers a reduction of the capillary effect and associated hysteresis up to a complete elimination of the effect in some embodiments of the invention. <IMAGE> |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0647833-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2013072128-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0645606-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5631418-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103946697-B http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103946697-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5557042-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5553495-A |
| priorityDate | 1989-08-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.