Analog signal processing for a lightweight and compact laser-based trace gas sensor
AssigneeSeekOps Inc.
InventorsVictor Alexander Miller, II, Brendan James Smith
Life of this patent
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Abstract
Systems, devices, and methods for a trace-gas sensor configured to generate a raw detector signal (118) based on a gas sample; an analog processing configured to filter, amplify, lock-in, and/or normalize the generated raw detector signal; analog to digital converters configured to convert the filtered and amplified detector signal to a digital signal; and a drive computer configured to: receive the converted digital signal from the analog to digital converters; and apply a spectroscopic model to the received digital signal to extract one or more properties of the gas sample.
Claims21
A method comprising:
- sending a laser drive signal to a trace-gas sensor;
- generating, by the trace-gas sensor, a raw detector signal based on a gas sample;
- amplifying, by an analog processing, the generated raw detector signal;
- locking-in, by the analog processing, the amplified detector signal;
- normalizing, by the analog processing, the locked-in detector signal based on the raw detector signal;
- converting, by analog to digital converters, the amplified and locked-in detector signal to a digital signal;
- receiving, by a drive computer, the converted digital signal;
- and
- applying, by the drive computer, a spectroscopic model to the received digital signal to extract one or more properties of the gas sample.
A system comprising:
- a trace-gas sensor, the trace-gas sensor configured to generate a raw detector signal based on a gas sample;
- an analog processing, the analog processing configured to:
- filter, amplify, lock-in, and normalize the generated raw detector signal, wherein the locked-in detector signal is normalized based on the raw detector signal;
- analog to digital converters, wherein the analog to digital converters are configured to convert the filtered and amplified detector signal to a digital signal;
- and
- a drive computer, the drive computer configured to:
- receive the converted digital signal from the analog to digital converters;
- and
- apply a spectroscopic model to the received digital signal to extract one or more properties of the gas sample.
21-24. (canceled)
Dependencies are inferred from the claim text.