Smiths Detection-watford Limited

Smith Detection-watford Limited

Stephen Richardson

A substance detection device, including a chemical substance analyzer, including an ion mobility spectrometer (IMS), a desorber, a conduit, and a membrane. The membrane extends across a cross-section of the conduit, and the membrane is positioned to have a desorber side in gas communication with the desorber and an analysis side opposite the desorber side. The substance detection device can be configured to direct a portion of a chemical substance to the desorber through the conduit so that at least a portion of the entrained chemical substance is transferred to the membrane by interacting with the desorber side of the membrane. The membrane is adapted to diffuse at least a portion of the chemical substance transferred to the membrane through the membrane to the analysis side. The device also includes a particle separator including a protuberance extending into a collection chamber of the particle separator.

Substance detection device utilizing a cyclone particle separator

A substance detection device including a chemical substance analyzer, including, a conduit, and a membrane, wherein the membrane extends across a cross-section of the conduit, wherein the membrane is positioned to have one side and an analysis side opposite the one side, wherein the substance detection device is adapted to direct a portion of a chemical substance to the one side through the conduit, the substance detection device further including a particle separation apparatus, including a particle collection device having a collection chamber containing a first fluid and including an outlet, wherein the outlet is in fluid communication with the conduit such that particles directed through the outlet travel through the conduit and chemical substances which may be on those particles directed through the outlet are transferred to the membrane by interacting with the one side of the membrane.

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London, United Kingdom

Stephen Richardson