Results 241 to 250 of about 243,771 (295)
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MRS Proceedings, 1995
ABSTRACTA capacitance relative humidity (RH) sensor is described that has a design, construction, and material composition that result in an inexpensive and robust sensor. This sensor has a multilayer, free-standing film construction. It consists of a humidity sensitive polyimide (PI) dielectric core and conductive layers consisting of carbon filled ...
Andrew R.K. Ralston +3 more
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ABSTRACTA capacitance relative humidity (RH) sensor is described that has a design, construction, and material composition that result in an inexpensive and robust sensor. This sensor has a multilayer, free-standing film construction. It consists of a humidity sensitive polyimide (PI) dielectric core and conductive layers consisting of carbon filled ...
Andrew R.K. Ralston +3 more
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Journal of the American Ceramic Society, 1991
Humidity sensor technologies amenable to widespread application in electronic control systems are reviewed. The principal sensor groups of interest include resistive ceramics, dielectric polymers, and resistive polyelectrolytes. The physical mechanisms and application trade‐offs for each group are considered.
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Humidity sensor technologies amenable to widespread application in electronic control systems are reviewed. The principal sensor groups of interest include resistive ceramics, dielectric polymers, and resistive polyelectrolytes. The physical mechanisms and application trade‐offs for each group are considered.
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IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1980
A novel humidity sensor using a MgCr 2 0 4 -TiO2 porous ceramic has been developed for an automatic microwave oven. Physical properties of the MgCr 2 0 4 -TiO2 ceramic, construction and humidity characteristics of the sensors, and outlines of the control of the automatic microwave oven by humidity sensing are described.
T. Nitta, S. Hayakawa
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A novel humidity sensor using a MgCr 2 0 4 -TiO2 porous ceramic has been developed for an automatic microwave oven. Physical properties of the MgCr 2 0 4 -TiO2 ceramic, construction and humidity characteristics of the sensors, and outlines of the control of the automatic microwave oven by humidity sensing are described.
T. Nitta, S. Hayakawa
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The Journal of the Acoustical Society of America, 1992
The water vapor content for air in drier ducts, ovens, furnaces and the like is determined by a measurement of sound speed which is done by measuring the time difference between sound pulses reflected by two reflectors spaced a known distance apart in a guide tube. The transmitter-receiver is located at one end of the tube.
Parthasarathy Shakkottai +2 more
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The water vapor content for air in drier ducts, ovens, furnaces and the like is determined by a measurement of sound speed which is done by measuring the time difference between sound pulses reflected by two reflectors spaced a known distance apart in a guide tube. The transmitter-receiver is located at one end of the tube.
Parthasarathy Shakkottai +2 more
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Sensors and Actuators, 1983
Abstract Recently there have been increasing demands for humidity-sensing elements applicable to automatic humidity controlling systems. There have been many reports about humidity sensors using materials such as electrolytes, organic polymers and metaloxides.
T. Seiyama, N. Yamazoe, H. Arai
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Abstract Recently there have been increasing demands for humidity-sensing elements applicable to automatic humidity controlling systems. There have been many reports about humidity sensors using materials such as electrolytes, organic polymers and metaloxides.
T. Seiyama, N. Yamazoe, H. Arai
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Sensors and Actuators A: Physical, 1998
Abstract A novel idea for a relative humidity (RH) sensor is presented. It is a thin-film approach to one of the classic methods of RH measurement usually described as the method of dry and wet thermometers. In contrast to the majority of humidity sensors described in the literature (or commercially available), based on resistance or impedance ...
T.M. Berlicki +4 more
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Abstract A novel idea for a relative humidity (RH) sensor is presented. It is a thin-film approach to one of the classic methods of RH measurement usually described as the method of dry and wet thermometers. In contrast to the majority of humidity sensors described in the literature (or commercially available), based on resistance or impedance ...
T.M. Berlicki +4 more
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Ultrafast Graphene Oxide Humidity Sensors
ACS Nano, 2013Sensors allow an electronic device to become a gateway between the digital and physical worlds, and sensor materials with unprecedented performance can create new applications and new avenues for user interaction. Graphene oxide can be exploited in humidity and temperature sensors with a number of convenient features such as flexibility, transparency ...
Stefano, Borini +8 more
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Surface acoustic wave humidity sensor
Sensors and Actuators B: Chemical, 1993Abstract A new surface acoustic wave humidity sensor has been developed and tested. It is based on the use of a polyphenylacetylene (PPA) membrane which has already been utilized in the I 2 -doped form for the study of humidity sensors based on electrical conductivity responses. PPA shows physical properties which make it an almost ideal membrane for
C Caliendo +5 more
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Hybrid microcavity humidity sensor
Applied Physics Letters, 2013This work presents an optical humidity sensing technique based on the combination of a whispering gallery mode microtoroidal cavity sensor and a nm-scale thick humidity-responsive polymer coating deposited via the initiated chemical vapor deposition process.
Simin Mehrabani +3 more
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