Seismic sensor
US11635534B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2021 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Nov 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/01
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A seismic sensor may include a simple earthquake detection mode in which measured acceleration data is not saved, and which mode is continued in a case in which the measured acceleration is equal to or less than a predetermined first threshold value. An earthquake detection mode may further be included in which the measured acceleration data is saved, and which mode is continued in a case in which the acceleration measured in the simple earthquake detection mode is greater than the first threshold value and equal to or less than a second threshold value that is greater than the first threshold value. An earthquake measurement mode may further be included in which the acceleration data and a spectrum intensity (SI) value are measured and saved, and which mode is continued in a case in which the acceleration measured in the earthquake detection mode is greater than the second threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.