Multi-mode vibration sensor laser

Details Multi-mode vibration sensor laser Multi-mode vibration sensor laser

2005-12-06

2005-12-06

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S227110, C073S001820

Reexamination Certificate

active

06972400

ABSTRACT:
A multimode remote vibration sensor. The inventive sensor (8) includes a mode locked laser transmitter (10); a receiver (30) adapted to detect signals transmitted by the laser (10) and reflected by an object (22) and a signal processor (40) for analyzing the signals and providing an indication with respect to a vibration of the object (22). The laser is particularly novel as a vibration sensor transmitter inasmuch as it includes a mode locking mechanism. The mode locking mechanism causes the laser to output energy at all modes within the gain profile in phase with one another. The result is a series of tight clean pulses which may be used for range resolved vibration and one-dimensional (high resolution ranging) applications.

REFERENCES:
patent: 4267732 (1981-05-01), Quate
patent: 4339821 (1982-07-01), Coppock et al.
patent: 5088808 (1992-02-01), O'Meara
patent: 5278855 (1994-01-01), Jacobovitz-Veselka et al.
patent: 5646396 (1997-07-01), Richard
patent: 5657405 (1997-08-01), Fujiwara
patent: 5912915 (1999-06-01), Reed et al.
patent: 5919140 (1999-07-01), Perelman et al.
patent: 6097741 (2000-08-01), Lin et al.
patent: 6154551 (2000-11-01), Frenkel
patent: 6178813 (2001-01-01), Bruno et al.
patent: 6304362 (2001-10-01), Zheludev et al.
patent: 6404797 (2002-06-01), Mooradian
patent: 6421573 (2002-07-01), Kafka et al.
patent: 2 334 171 (1999-01-01), None
patent: WO 00 59081 (2000-10-01), None
Holm, A. et al.: “Nondestructive Evaluation of Saw Devices Using A High-Resolution Optical Detection Technique”: vol. 51, No. 2, Mar. 1, 1997, pps. 91-96, XP000731195, Issn: 0001-1096, pp. 91, r-h col., last para.—pp. 92, I-h co., para. 1; fig. 2.
Ning Y. N. et al.: A Novel Optical Heterodyne Vibration Sensor Scheme, Preserving Directional Information and Using A Short Coherence Length Source: Optics Communication, North-Holland Publishing Co., Amsterdam, NL, vol. 85, No. 1, Aug. 15, 1991, pps. 10-16, XP000218343, p. 14, r-h col.; figures 2, 3.

Affiliated with

Also associated with

Rating

Multi-mode vibration sensor laser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-mode vibration sensor laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-mode vibration sensor laser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3520408