ACTIVE REMOTE SENSING OF ATMOSPHERIC GASES OR SMOKE USING A TIME-OF-FLIGHT SENSOR
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Nov 28, 2024
app pub date -
Aug 5, 2024
filing date -
Aug 5, 2024
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status (Latency Note)
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Abstract
An active remote sensing system comprises near-infrared laser diodes including one or more Bragg reflectors and having a pulsed output with duration between 0.5 to 2 nanoseconds. A first lens receives and directs the laser diode light to an object or an atmosphere. A detection system receives light reflected from the object or atmosphere, which comprises a second lens and spectral filters in front of a photodiode array. The detection system is synchronized to the laser diodes and performs a time-of-flight measurement. The time-of-flight measurement is performed at least in part by measuring a temporal distribution of photons in the light reflected from the object or the atmosphere. The active remote sensing system including the processor is configured to monitor gases in the atmosphere based at least in part on changes in the temporal distribution of photons in the light reflected from the object or the atmosphere.
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International Classification(s)
- G01J:MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTE....
- G01M:TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR S....
- G01N:INVESTIGATING OR ANALYSING MATERIALS BY DETERMININ....
- A61B:DIAGNOSIS; SURGERY; IDENTIFICATION
- A61C:DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL....
- H01S:DEVICES USING STIMULATED EMISSION
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