Pulsed radiation classifier and related method

Details Pulsed radiation classifier and related method Pulsed radiation classifier and related method

1997-09-16

1998-07-28

Evans, F. L.

Optics: measuring and testing

For optical fiber or waveguide inspection

356326, G01J 312

Patent

active

057868883

ABSTRACT:
Apparatus and a related method for detecting laser pulses and classifying em in accordance with their wavelength, irradiance level, shape and time of occurrence. Each pulse received from a selected field of regard (10) is detected in a high-speed broadband radiometer (12), which generates a corresponding electrical pulse that is used to form a triggering pulse to control a gated camera (24) coupled to a transmission grating spectrometer (22). The gated camera (24) has an inherent delay time before it becomes active after receiving a gating signal (30). To compensate for this delay, light from each laser pulse passes through a fiber image delay line (16) before reaching the transmission grating spectrometer (22). Output data signals from the camera (24) are processed (40) to reduce the effects of background noise and converted (42) to a quantity indicative of wavelength. The electrical pulse from the radiometer (12) is also used to generate additional quantities indicative of pulse shape, as well as to generate, in a thresholding circuit (34), the camera triggering signal and to generate, in another circuit (36), a camera gain control signal.

REFERENCES:
patent: 3547542 (1970-12-01), Bulpitt et al.

Affiliated with

Also associated with

Rating

Pulsed radiation classifier and related method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulsed radiation classifier and related method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulsed radiation classifier and related method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-26990