| 专利名称： | Maintaining temperature stability in a seismic sensor |
| 公开（告）号： | |
| 公开（公告）日： | 2006-07-26 00:00:00 |
| 申请（专利）号： | GB20060001348 ,GB2422434 |
| 申请日： | |
| 发明（设计）人： | NANOMETRICS INC (CA) |
| (申请)专利权（人）： | HAYMAN MARK JONATHAN (CA);HAYMAN ROBIN BRICE (CA); |
| 内容： | A seismometer 20 comprises at least one axis mechanics module 23 which includes moving parts 15 (e.g. frame, boom, suspension, spring, force actuator, displacement transducer, axis electronics, re-centring mechanism) and an electronic component 26 (eg PCB). A thermally insulating assembly 25 supports and surrounds the axis mechanics modules 23. A pressure sealed enclosure 22 surrounds the thermally insulating assembly 25 and the electronic component 26. Heat flow from the pressure sealed enclosure to the axis mechanics modules is minimised, and transmission of seismic signals to the axis mechanics modules is enabled. The thermally insulating assembly 25 may be made from a rigid insulating material such as ceramic, glass-epoxy or glass filled plastic. A tray 28 may divide the interior into a first chamber 19 for the electronics 26 and a second chamber 18 for the mechanics 23. The tray 28 minimises the movement of air by convection between the chambers 19, 18. |
发布日期：2006-11-26 20:10:00