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Due to nonlinearity and uncertainty of induction cooker system, it is difficult to establish an accurate mathematical model for control purpose. This paper proposes an appropriate fuzzy control strategy for controlling pan temperature of induction cooker system, without an accurate control model. In induction cooker system, the temperature feedback is from the glass countertop instead of the pan....
This research mainly focuses on the household bean sprouts machines, putting forward a kind of intelligent photoelectric household bean sprouts machine, which is made up of the base, cover, cultivating cylinder, cultivating dish, pressure tray, pressure sensor, intelligent controller and control panel, etc. Considering that different beans need different illumination levels, this design uses the liquid...
Evaluating sensor characteristics is a critical task to choose the device with better performance for a specific application. In case of environmental monitoring systems, being low power design a big challenge, reducing activation periods is a recurrent technique to reduce power so response time of sensors should be evaluated to accomplish this goal. In this article, a hardware-software monitoring...
We report on micro-machined flow-rate sensors as part of autonomous multi-parameter sensing devices for water network monitoring. Three different versions of the flow-rate sensors have been designed, fabricated and experimentally characterized. Those sensors are made of identical micrometric platinum resistors deposited on two different substrates-glass and silicon with and without insulation layer...
Hydrogel-based robotic microdevices are currently investigated for minimally invasive medical procedures. Hydrogels are especially suited to targeted drug delivery applications as they are able to carry several times more drug solution than its dry weight. A major drawback of these system is that drug release takes place before reaching the targeted area in the body. We introduce a strategy based...
In this study we evaluated system architecture for the use of smart glasses as a viewer of information, as a source of medical data (vital sign measurements: temperature, pulse rate, and respiration rate), and as a filter of healthcare information. All activities were based on patient/device identification procedures using graphical markers or features based on visual appearance. The architecture...
We report on the degradation of organic photovoltaic (OPV) cells in both indoor and outdoor environments. Eight different research groups contributed state of the art OPV cells to be studied at Pomona College. Power conversion efficiency, fill factor, and IV curves were collected at regular intervals over six to eight months. Similarly prepared devices were measured indoors, outdoors, and after dark...
The present work is about preparation and characterization of high temperature oxygen sensing composite material consisting of Gadolinium doped Ceria (GDC) together with a relatively low temperature melting, ionic conducting glass to facilitate lower sintering and operating temperature. This paper reports the physical and ionic conductivity properties of this sintered composite as a function of operating...
This paper describes a method for controlling the velocity of gliding microtubules by light irradiance on a gold-patterned surface. The light was used to control the temperature of the buffer solution by heat transfer from the thin gold film. Microtubule velocity increased approximately 1.8-fold from the initial velocity at the 13.5 W/cm2 on the gold-coated area. The proposed method also allows cyclical...
This paper reports novel designed and fabricated micro airflow sensors based on the hot-wire sensing principle, i.e. gas cooling of electrically heated resistance. With three micro Ti/Pt hot-wire components with width of 50 µm and thickness of 130 nm fabricated on a glass tube (outer diameter of 2.8mm and inner diameter of 2.1mm) in five degrees of freedom (5DOF) UV lithography system with multi-layer...
China is the world's biggest market for pork in terms of production as well as consumption. The concentration of amines is a quality criterion for pork freshness. To detect the pork-borne amines quickly and noninvasively, a dye-sensitized TiO2 thin film gas sensor was developed in this article. Firstly, TiO2 films were deposited on glass by DC magnetron sputtering method. About 0.5μm thick of TiO2...
We present a pyroelectric device made from PZT screen printed on glass substrate. The pyroelectric thick film element is made of a stack of 50μm PZT between silver electrodes. The device is placed under thermal load by a stream made of a sequence of hot and cold water flowing through a PDMS microchannel aligned of top of the device. With this, it is possible to apply fast temperature changes above...
The GZO thin films of the thickness about 200∼250nm were deposited on the glass which used as a pH sensor head based on the extended-gate field-effect transistor (EGFET) by r. f. sputtering system in this study. The pH sensing characteristics of the GZO/glass EGFET sensing structure were investigated and a semiconductor parameter analyzer (Keithley 4200) was used to measure the drain-source current...
To study the effect of the temperature sensor on the spacers, the experimental platform of the temperature sensor and spacers model is constructed in this paper. It is studied that the flashover process is acquired with increasing the voltage using the sensor installing on the surface of the spacers, the simulated measuring temperature sensor by the steel, the ultraviolet instrument, and the ICCD...
In this paper, study of theory and technique experiment has done about noncontact fluorescence temperature detection technique. This system is particularly adapt to the temperature measurement in the rang of 0°C to130°C¡£The calibration graph was shown to be highly reproducible when the probe is temperature cycled. A change in drive current from 5 to 30mA yields a spectral shift of the peak emission...
The micro flow sensor was developed. The flow sensor is corrosion resistant owing to making all wetted surfaces as glass and placing sensing elements in non-wetted areas by MEMS process. On response to user needs, measurable high flowrate range was expanded by Time-of-Flight method and the flow sensor was downsized. Original flow sensor fulfilled targeted accuracy in high flowrate range while downsized...
The design, fabrication, and measurement results for a diaphragm-based single crystal silicon sensor element of size 820 μm × 820 μm × 500 μm are presented. The sensor element is designed for in vivo applications with respect to size and measurement range. Moreover, it is optimized for longtime operation in the human body through a built-in protection preventing biofouling on the piezoresistors. The...
This paper reports on the systematic characterization and modeling of a CMOS-based sensor for high-pressure applications. The sensor consists of an anodically bonded silicon-glass stack comprising an n-type Wheatstone bridge as the piezoresistive stress-sensing element. Surface trenches introduced into the silicon close to the Wheatstone bridge significantly increase the pressure sensitivity of the...
In this paper a fibre optic sensor is developed and tested to measure pressure and temperature under simulated wellbore conditions. The sensor consists of a miniature all-silica fibre optic Extrinsic Fabry-Perot Interferometer (EFPI) sensor which has a novel embedded Fibre Bragg Grating (FBG) reference sensor element to determine both pressure and temperature at the point of measurement. The sensor...
We present herein a novel technique for the fabrication of a glass micropipette thermal sensor utilizing inexpensive thermocouple materials and we are capable of measuring thermal fluctuation with accuracy of ±0.002 degree Celsius. We produced and tested various sensors in the sensing tip size, which ranges from 5 μm to 30 μm. The sensors comprise unleaded low melting...
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