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| Number | Title | Issue Date |
| 7363813 | Temperature and moisture probe A probe for measuring the temperature and moisture of a gas has an aspirated flow passage with a configuration that causes the gas to have turbulent flow and, therefore, to mix. A dry bulb thermometer and a wet bulb thermometer positioned in the flow passage downstr... | 04/29/2008 |
| 7234860 | Dynamic dew point analysis method and a device for determining the dew point temperature and relative humidity The invention provides for a dynamic dew point analysis method as well as an apparatus for carrying out the method wherein the method comprises: arranging a moisture containing gas in the immediate vicinity of at least two thermocouples, where one thermocouple is sh... | 06/26/2007 |
| 6758084 | Method and apparatus for detecting a dry/wet state of a thermistor bead A method of detecting a dry/wet state of a thermistor bead comprises the steps of: conducting current through the thermistor bead selectively between first and second current levels; measuring a difference in voltage across the thermistor bead in response to the fir... | 07/06/2004 |
| 6662650 | Method and apparatus for detecting a dry/wet state of a dual exposed thermistor bead liquid level sensor A method of detecting a dry/wet state of a dual thermistor bead sensor over a wide operating temperature range comprises the steps of: conducting first and second predetermined currents through one and another of the thermistor beads of the sensor, respec... | 12/16/2003 |
| 6644103 | Method and apparatus for detecting a dry/wet state of a thermistor bead A method of detecting a dry/wet state of a thermistor bead comprises the steps of: generating a current waveform that transitions between first and second current levels; conducting the current waveform through the thermistor bead; measuring a voltage wav... | 11/11/2003 |
| 6202480 | Thermometric vapor sensor with evaporation surface having micropores A sensor for sensing in a gas stream a vapor of a liquid. The sensor includes a micropore and a wet temperature sensor. The micropore has an evaporation end and has a lumen to conduct liquid from a supply of the liquid for evaporation at the evaporation e... | 03/20/2001 |
| 4626774 | Method and arrangement for measuring the contamination of a capacitive dew-point sensor A dew-point measuring instrument has a capacitive dew-point sensor 1 which is cooled by a cooling device 17 to the dew-point temperature measured by a temperature sensor 8. A phase measuring circuit 14 measures the phase angle of the impedance of the capa... | 12/02/1986 |
| 4345469 | Air tunnel device for thermohygrometer An air tunnel device is provided for use in combination with a thermohygrter of the type where the change of resistance of the probe in response to changes in the ambient atmosphere is used to measure the temperature and humidity of the atmosphere. The d... | 08/24/1982 |
| 4203128 | Electrostatically deformable thin silicon membranes The invention relates to thin silicon membranes formed in layers of silicon such as are normally utilized as substrates in the manufacture of integrated electronic circuits. The thin membranes constructed in accordance with the invention are capable of de... | 05/13/1980 |
| 4129250 | Relative humidity control Apparatus for measuring and controlling the relative humidity of exhaust air from an industrial drier in which exhaust air is passed across a dry bulb and a wet bulb thermocouple from which a voltage is derived providing a measure of the relative humidity... | 12/12/1978 |
