摘要:
A docking station for use with gas sensors includes limited test and diagnostic circuitry directed to specific characteristics of selected detectors. Where a family of detectors is to be evaluated, a universal interface for that family can be included. A single port can be used for multiple different detectors irrespective of specific detector characteristics.
摘要:
A method for photoacoustically sensing oxygen in a gaseous sample is disclosed, together with an apparatus for practicing the present method. Efficient and cost-effective oxygen sensing is provided by the use of a light source in the form of a light-emitting diode, which can be selected to correspond with the absorption spectra exhibited by oxygen in a gaseous sample. Filtering can be employed in order to control and narrow the wavelength of light emitted by the light source. An apparatus is disclosed which facilitates practice of the present method, including an arrangement by which ambient noise and vibration can be canceled.
摘要:
Devices and methods are disclosed that can adjust a hydration level in an electrochemical sensor or an instrument which includes such a sensor. The device can include a chamber which can, at least in part, surround an inflow port of the sensor. An adjacent reservoir of water can provide a source of water vapor which can be infused into the sensor.
摘要:
A portable, relatively low power gas detector incorporates a single pellistor-type sensor for sensing an explosive gas of interest. Outputs from the sensor are corrected in accordance with ambient temperature and humidity and pre-stored correction factors based on characteristics exhibited by a plurality of similar sensors.
摘要:
A docking station for use with gas sensors includes limited test and diagnostic circuitry directed to specific characteristics of selected detectors. Where a family of detectors is to be evaluated, a universal interface for that family can be included. A single port can be used for multiple different detectors irrespective of specific detector characteristics.
摘要:
A portable, relatively low power gas detector incorporates a single pellistor-type sensor for sensing an explosive gas of interest. Outputs from the sensor are corrected in accordance with ambient temperature and humidity and pre-stored correction factors based on characteristics exhibited by a plurality of similar sensors.
摘要:
Devices and methods are disclosed that can adjust a hydration level in an electrochemical sensor or an instrument which includes such a sensor. The device can include a chamber which can, at least in part, surround an inflow port of the sensor. An adjacent reservoir of water can provide a source of water vapor which can be infused into the sensor.