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.
Claims20
A method comprising:
- generating, by a trace-gas sensor, a raw detector signal based on detecting a trace gas in a gas sample;
- locking-in, by an analog processing module, the detector signal to generate a locked-in detector signal;
- normalizing, by the analog processing module, the locked-in detector signal to generate a normalized detector signal;
- converting the normalized detector signal to a digital signal;
- and
- extracting one or more properties of the gas sample based on the digital signal.
A system comprising:
- a trace-gas sensor configured to generate a raw detector signal based on detecting a gas sample;
- an analog lock-in amplifier configured to:
- lock-in the detector signal to generate a locked-in detector signal;
- an analog normalizer configured to normalize the locked-in detector signal to generate a normalized detector signal;
- an analog to digital converter configured to convert the normalized detector signal to a digital signal;
- and
- a driver configured to extract one or more properties of the gas sample based on the digital signal.
A system comprising:
- an aerial vehicle comprising:
- a trace-gas sensor configured to generate a raw detector signal based on detecting a gas sample;
- an analog lock-in amplifier configured to:
- lock-in the detector signal to generate a locked-in detector signal;
- an analog normalizer configured to normalize the locked-in detector signal to generate a normalized detector signal;
- an analog to digital converter configured to convert the normalized detector signal to a digital signal;
- and
- a driver configured to extract one or more properties of the gas sample based on the digital signal.
Dependencies are inferred from the claim text.