Chemical and biological sensor

• US 8,545,761 B2
• Filed: 03/25/2010
• Issued: 10/01/2013
• Est. Priority Date: 03/25/2010
• Status: Active Grant

• Current Assignee: Raytheon Company (Rtx Corporation)
• Original Assignee: Raytheon Company (Rtx Corporation)
• Inventors: Cox, Donald P.
• Primary Examiner(s): MERKLING, SALLY ANNE
• Application Number:
  US12/731,658
• Publication Number:
  US 20110236267A1
• Time in Patent Office: 1,286 Days
• Field of Search: None
• US Class Current: 422/83
• CPC Class Codes: G01N 33/0009 General constructional details of gas analysers, e.g. portable test equipment G01N1/22 takes precedence
• CPC Class Codes: G01N 33/0031 comprising two or more sensors, e.g. a sensor array electrochemical electrode arrays G01N27/27
• CPC Class Codes: Y10T 436/25 including sample preparation

Abstract

The present disclosure provides a sensor device. The sensor device may include an intake port for an air sample connected to a mixing chamber. The mixing chamber may contain at least one device for the introduction of a liquid or gel detection improvement agent, or at least one mechanical dispersal device for the introduction of a solid detection improvement agent. The detection improvement agent may be operable to interact with a chemical or biological agent in the air sample. The mixing chamber may also include at least one heating or cooling plate and at least device for the introduction of water or an aromatic solvent into the air sample as well as at least one detection element able to detect a chemical or biological agent in the air sample. The mixing chamber may be connected to an exhaust port.

Claims

1. A sensor device for the detection of a chemical or biological agent comprising:

an intake port for an air sample;

a mixing chamber connected to the intake port, the mixing chamber containing;

at least one storage container, connection tube, and atomizer comprising a liquid or gel detection improvement agent, or at least one mechanical dispersal device comprising a solid detection improvement agent, the at least one of the liquid or gel detection improvement agent and solid detection improvement agent operable to interact with a chemical or biological agent in the air sample, the at least one storage container, connection tube, and atomizer, or at least one mechanical dispersal device connected directly downstream of the intake port and upstream of at least one heating or cooling plate;

at least one storage container and wick for the introduction of water or an aromatic solvent into the air sample connected downstream of the at least one storage container, connection tube, and atomizer, or at least one mechanical dispersal device; and

at least one detection element selected from the group consisting of a polymer film, a biometric film, or olfactory cells, and an array of polymer or biometric films, each sensitive to a different chemical or biological agent operable to detect a chemical or biological agent in the air sample, the at least one detection element positioned downstream of the at least one storage container and wick; and

an exhaust port positioned downstream of the at least one detection element.

2. The sensor device of claim 1, wherein the atomizer comprises an ultrasonic or radio frequency atomizer.

3. The sensor device of claim 1, wherein the at least one of the liquid and gel detection improvement agent and solid detection improvement agent comprises a protein.

4. The sensor device of claim 1, wherein the at least one of the liquid and gel detection improvement agent and solid detection improvement agent comprises a lipid.

5. The sensor device of claim 1, wherein the at least one of the liquid and gel detection improvement agent and solid detection improvement agent chemically reacts with the chemical or biological agent.

6. The sensor device of claim 1, wherein the detection element detects the chemical or biological agent by detection of a product of an interaction of the chemical or biological agent with the detection improvement agent.

7. The sensor device of claim 1, further comprising at least one storage container and connection tube operable to introduce a neutralization agent into the air sample.

8. The sensor device of claim 7, further comprising a detection element operable to detect the neutralization of the chemical or biological agent by the neutralization agent.

9. The sensor device of claim 1, further comprising at least one additional mixing chamber, wherein the mixing chambers are placed in series.

10. The sensor device of claim 1, further comprising at least one additional mixing chamber, wherein the mixing chambers are placed in parallel.

11. The sensor device of claim 1, wherein the heating or cooling plate comprises a Peltier Diode heat transfer plate.