http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0642004-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_077b4028d275be493472974a4c33bc0a |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01H11-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01D5-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N29-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01H11-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L29-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H04R17-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B23Q17-09 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01L41-08 |
| filingDate | 1994-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_01c1ab0911400bd499f2a48a106d723c |
| publicationDate | 1995-03-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0642004-A2 |
| titleOfInvention | Sound emission transducer |
| abstract | The invention relates to a sound emission sensor and a coupling method. The sound emission sensor (1) forms a mounting unit and is specially designed for measuring high-frequency sound emissions (up to approx. 2 MHz). It consists of a piezoelectric measuring element (9), a sound transmission base (8) with a circumferential coupling membrane (7) and a potting compound (10) partially enclosing the measuring element (9). A mounting screw (3) is used to attach the transducer.n n n The coupling membrane (7) lies in a step (14) of the housing (2), the bottom surface (5) of which, when the membrane (7) is not tensioned, has a distance corresponding to the span (s) from the measurement object (15). The sound emission sensor (1) is coupled to the measurement object (15) in such a way that the bottom surface (5) is pressed onto the measurement object (15) by tightening the screw (3) and fastened to it, thereby tensioning the membrane (7) and the Mounting base (8) is coupled to the surface of the measurement object (15). The invention enables miniaturization and more rational production of the transducer as well as an improvement in high-frequency sound transmission. |
| priorityDate | 1993-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.