http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1154125-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1999759ca1b4928497a8a7b674779bba |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01L1-2287 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01L9-0055 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01L9-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01L1-22 |
| filingDate | 1967-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67c65bc8b6e0b81409df3c107cbe74b4 |
| publicationDate | 1969-06-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1154125-A |
| titleOfInvention | Improvements in or relating to Transducers. |
| abstract | 1,154,125. Measuring fluid-pressure, electrically. STATHAM INSTRUMENTS Inc. Jan.25, 1967, No.3741/67. Heading G1N. A fluid-pressure transducer comprises a diaphragm having a central boss 111 Figs. 1, 2 and an annular flexible area 116 to which resistance strain gauges are bonded, the radius of the boss being approx. 0À3 to 0À8 times the flexible area radius and the boss thickness being at least twice the flexible area thickness. In Fig. 1 the diaphgram is attached to or is integral with a ring 112 and pressure acts in the direction of arrow 120. The diaphragm may be insulative e.g. quartz, or may be stainless steel coated with silicon oxide. The strain gauges are connected to form a Wheatstone bridge, one pair of opposite arms of which comprises tensionally stressed radially extending strain gauge segments 122, 124 and 126, 128 Fig. 2, and the other two opposite arms comprise compressively stressed radially extending strain gauge segments 130, 132 and 134, 136 respectively. The gauge segments may be formed by an electro-deposited film of silicon-chrome, or nickel-chrome and are joined by chrome tabs (e.g. 138, 140, 142) and connected to form a bridge by wires (e.g. 144, 146, 152, 154). Alternatively the compressively stressed active segments 130, 132 and 134, 136, which have a non-linear response, may be completely off the flexible area so as to be unstressed thereby increasing the linearity of the bridge output Fig. 5 (not shown) or they may be partly on the clamping ring and partly on the flexible area Fig. 6 (not shown). The diaphragm may be "fully clamped" as in Fig. 8 and have strain gauge elements on both faces and may be flexed in either direction by pressure acting on pressure transmitting diaphragms 240, 242 through oil in chambers 244, 246. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110095054-A |
| priorityDate | 1967-01-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 20.