Chemical sensing device
First Claim
Patent Images
1. A system comprising:
- a sample collector comprising;
a sample collector housing having a preconcentrator holder sized to reversibly receive a preconcentrator;
a detector comprising;
a detector housing having an detector access port sized to reversibly receive the preconcentrator;
an induction heater contained within the detector housing, the induction heater configured to heat the preconcentrator;
a sensing system operably connected to the access port and positioned to receive particles, gases, and vapors from the preconcentrator when the preconcentrator is received by the detector; and
the preconcentrator comprising;
a cartridge; and
a substrate having a resistivity of about 105 ohm-meters (Ω
·
m) to about 10−
7 Ω
·
m, magnetic permeability of about 1×
10−
4 H/m, to about 1 H/m, and a relative permeability of greater than 100 enclosed within the cartridge.
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Accused Products
Abstract
A chemical sensing system includes a substrate material, a detector capable of indicating a presence of a target compound, gas, or vapor, and a heater for rapidly releasing compounds, gases and vapors from the substrate material. The substrate material acts to concentrate the compounds, gases, and vapors from a sample area for improved detection by the detector.
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Citations
8 Claims
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1. A system comprising:
-
a sample collector comprising;
a sample collector housing having a preconcentrator holder sized to reversibly receive a preconcentrator;a detector comprising;
a detector housing having an detector access port sized to reversibly receive the preconcentrator;an induction heater contained within the detector housing, the induction heater configured to heat the preconcentrator; a sensing system operably connected to the access port and positioned to receive particles, gases, and vapors from the preconcentrator when the preconcentrator is received by the detector; and the preconcentrator comprising;
a cartridge; anda substrate having a resistivity of about 105 ohm-meters (Ω
·
m) to about 10−
7 Ω
·
m, magnetic permeability of about 1×
10−
4 H/m, to about 1 H/m, and a relative permeability of greater than 100 enclosed within the cartridge. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification