Spectroscopic breath detector

摘要

A replaceable spectroscopic detector used in volatile organic compounds testing devices, such as a portable breath testing device for roadside drug testing or a testing device for any air handling systems, such as those used for indoor agriculture, which reversibly sorb compounds and prepare a concentrated sample in a single gas cell configured for performing spectroscopy of the contents within the cell.;The disclosed invention comprising; one or more check valves, a source of electromagnetic radiation and an electromagnetic receiver that releasably connects to a volatile organic compounds testing device such that it is replaceable and is configured for performing spectroscopy and passing exhaled breath and/or airflow through a disposable and replaceable reversibly engaging cartridge comprising a reversible sorbent and a gas cell configured for spectroscopy. The invention further comprises a heater that preferably is included in the cartridge for heating the cell and desorbing the sorbed compounds preparing a concentrated sample inside the gas cell.

主权项

1. A spectroscopic breath detector for a volatile organic compounds testing device, viewed externally as tubular in appearance, for performing spectroscopy of contents within, in which the spectroscopic breath detector comprises:
an electromagnetic receiver for providing an output signal at a signal magnitude proportional to the intensity of electromagnetic energy received, an inlet check valve for allowing exhaled breath and/or airflow into a disposable and replaceable cartridge comprising
a gas cell configured for receiving exhaled breath and/or airflow and performing spectroscopy of contents within anda reversible sorbent for reversibly sorbing volatile organic compounds, when present, in fluid communication with said gas cell, a heater for heating said cartridge and desorbing the sorbed compounds to form a concentrated sample in said gas cell, an outlet check valve for allowing exhaled breath and/or airflow to exit said cell after encountering said cartridge, a source of electromagnetic radiation for emitting electromagnetic energy, at any wavelengths, to interact with said concentrated sample, a releasable electrical connector or more for said source of electromagnetic radiation, heater and electromagnetic receiver,wherein said inlet check valve or said outlet check valve is an in-line check valve,said inlet check valve and said outlet check valve bracket said cartridge according to the flow through said cartridge,said spectroscopic breath detector is configured for reversibly engaging said cartridge or any part, parts, combination of parts, or combinations of parts that include said cartridge andfurther configured for releasably connecting to and bringing in communication a volatile organic compounds testing device such that exhaled breath and/or airflow is accepted, electrical parts are powered and spectroscopy may be performed.