http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-857020-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c2ca20a90e04247265f4c53e2934868d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01N27-048 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N27-04 |
| filingDate | 1959-09-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1960-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-857020-A |
| titleOfInvention | Improvements in or relating to hygrometers |
| abstract | 857,020. Electrical hygrometers. MINNEAPOLIS-HONEYWELL REGULATOR CO. Sept. 10, 1959 [Sept. 18, 1958], No. 30926/59. Class 40 (1). [Also in Group XXXVI] In an electrical hygrometer the Peltier effect is employed to cool a high-conductivity metallic plate 13 and thus a layer 14 of a medium, the conductivity of which changes markedly with moisture deposition, and current passing through the layer is measured. Fig. 2 shows a thermocouple comprising thermoelectric elements 11 and 12 which may consist of P-type bismuth telluride with N-type lead telluride and the moisture-sensitive layer 14 which may consist of sodium chloride, potassium chloride, sodium sulphate or potassium sulphate. In the circuit, current is shunted off from the thermocouple at the cold junction and is directly measured in terms of relative humidity or dew-point on meter 23. The flow tends to an equilibrium state as heat-exchange occurs between the junction-plate and the conducting medium. |
| priorityDate | 1958-09-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 22.