Hydrophone with ferroelectric sensor
US6151277A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1999 |
| Grant date | Nov 21, 2000 |
| Priority date | — |
| Expiry date | Apr 16, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/3808
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An arcuate or flat ferroelectric sensor is incorporated in a seismic streamer. The structure comprises two half-cylinders which are mounted together around a cable. The half-cylinders are coupled together by bolts or pins or any other appropriate means. Each half-cylinder defines a well into which a sensor is mounted. With the sensor in place, the structure is covered over with a sound-transparent material to receive an acoustic signal into the sensor. Electrical leads from the sensor are directed through ports in the half-cylinders, and the leads are connected together to provide a composite sensed signal to the cable in analog form. The sensor in each half-cylinder is a single element hydrophone that, when connected to a sensor in a complementary half cylinder in series or in parallel, forms an acceleration cancelling hydrophone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.