Laser level with temperature control device and temperature...

Geometrical instruments – Straight-line light ray type – Level

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C033S702000, C033S366110

Reexamination Certificate

active

11456513

ABSTRACT:
A laser level with temperature control device (2) and the temperature control method thereof are disclosed. The temperature control device includes a thermal insulation chamber (22), a thermoelectric cooler (25), a control unit (21), and first and second temperature sensors (23, 24). The second temperature sensor is received in the thermal insulation chamber together with a tilt sensor (12). The control unit controls operation of the thermoelectric cooler according to the external and internal temperature signals respectively output by the first and second temperature sensors, so as to adjust the internal temperature inside the thermal insulation chamber to be a calibration temperature point close to the external temperature. Accordingly, the temperature drift problem can be addressed, and the working temperature of the tilt sensor can be maintained in a stable range. Further, the acceptable ambient temperature range within which the tilt sensor works can be expanded.

REFERENCES:
patent: 4918608 (1990-04-01), Middleton et al.
patent: 5914778 (1999-06-01), Dong
patent: 6182372 (2001-02-01), Lamm
patent: 6621560 (2003-09-01), Greco
patent: 6762830 (2004-07-01), Connolly
patent: 7013571 (2006-03-01), El-Katcha et al.
patent: 7095486 (2006-08-01), Greco
patent: 2002/0144418 (2002-10-01), Endo et al.
patent: 2006/0053645 (2006-03-01), Rock et al.
patent: 04050614 (1992-02-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Laser level with temperature control device and temperature... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser level with temperature control device and temperature..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser level with temperature control device and temperature... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3927105

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.