Cavity ring-down spectrometer systems
AssigneeHoneywell International Inc.
InventorsJames A. Cox, Teresa M. Marta
Life of this patent
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Abstract
Cavity ring-down spectrometer systems are described herein. One or more embodiments include a cavity having at least two mirrors, wherein a first mirror of the at least two mirrors is configured to permit light to enter and exit the cavity, a first detector configured to detect light exiting the cavity through the first mirror, and a second detector configured to detect light from the first mirror, wherein the first detector is separate from the second detector.
Claims19
A cavity ring-down spectrometer system, comprising:
- a cavity having at least two mirrors, wherein a first mirror of the at least two mirrors is configured to permit light to enter and exit the cavity;
- a first detector configured to detect light exiting the cavity through the first mirror;
- a second detector configured to detect light from the first mirror;
- wherein the first detector is separate from the second detector;
- and a shutter located between the first mirror and the first detector;
- wherein the shutter is configured to turn on upon a signal from the second detector reaching a threshold value.
A cavity ring-down spectrometer system, comprising:
- a cavity having three mirrors, wherein a first mirror of the three mirrors is configured to permit light to enter and exit the cavity;
- a ring-down detector and a trigger detector configured to detect light from the first mirror;
- and
- a shutter located between the first mirror and the ring-down detector, wherein the shutter is configured to permit light exiting the cavity through the first mirror to reach the ring-down detector upon receipt of a command issued by the trigger detector.
A method of operating a cavity ring-down spectrometer system, comprising:
- inputting light into a cavity having at least two mirrors through a first mirror of the at least two mirrors;
- measuring light from the first mirror using a trigger detector turning on a shutter located between the first mirror and the trigger detector upon a signal from the trigger detector reaching a threshold;
- and
- measuring light exiting the cavity through the first mirror using a ring-down detector upon the signal from the trigger detector reaching a threshold value.
Dependencies are inferred from the claim text.