A salinity sensor system for estuary studiesSpringer Science and Business Media LLC - - 2008
In this paper, we present the design, development and testing of a salinity sensor system for estuary studies. The sensor was designed keeping size, cost and functionality in mind. The system will be using the LabVIEW program developed by our lab to download and display the data. The microprocessor design of our salinity sensor and a description of our LabVIEW mapping tool are presented below. Our...... hiện toàn bộ
#Sensor systems #Microprocessors #Biosensors #Coils #Hardware #Prototypes #Frequency #User interfaces #Sensor phenomena and characterization #Laboratories
New surface acoustic wave gas sensor of the mass-sensitive type sensitive to the thermal properties of gasesSENSORS, 2002 IEEE - Tập 1 - Trang 372-375 vol.1
The basic principles of a new surface acoustic wave (SAW) gas sensor are described. Being essentially a sensor of the mass-sensitive type, the proposed device possesses certain features of the thermometric SAW sensors and is not only sensitive to the vapors of volatile substances, but capable of detecting gases by their thermal properties as well. This principles consists of making a certain delay...... hiện toàn bộ
#Surface acoustic waves #Acoustic waves #Gas detectors #Gases #Temperature sensors #Sensor phenomena and characterization #Thermal sensors #Sensor systems #Surface acoustic wave devices #Acoustic sensors
Temperature dependences of fibre-optical sensors of mechanical valuesProceedings. 3rd Annual Siberian Russian Workshop on Electron Devices and Materials - Tập 1 - Trang 3 pp. - 2002
In the work the temperature dependences of the fibre-optical sensor of mechanical values are explored. The examinations of influence of temperature changes on the transmitting characteristic of FOS were spend. As a sensing device the silicon membrane with width h1=40 micron with strong centre by width h3=200 micron was used. The measuring were spend at temperatures T1=20/spl deg/C, T2=60/spl deg/C...... hiện toàn bộ
#Temperature sensors #Temperature dependence #Optical fiber sensors #Mechanical sensors #Sensor phenomena and characterization #Face detection #Silicon #Optical sensors #Diodes #Sensor systems and applications
Principles of torque measurement for rotating microactuatorsSENSORS, 2002 IEEE - Tập 2 - Trang 1757-1761 vol.2
Different micromotors and other rotating microsystems like gearboxes with dimensions of a few millimeters have been developed during the last years. Applications of such micromotors can be found in sensors and actuators for example in medical equipment. These components offer the possibility of extreme miniaturization of mechanical systems with driven rotating parts. The characterization of rotati...... hiện toàn bộ
#Torque measurement #Microactuators #Micromotors #Sensor phenomena and characterization #Rotation measurement #Velocity measurement #Testing #Mechanical sensors #Actuators #Biomedical equipment
CMOS image sensor overlaid with a HARP photoconversion filmCOMMAD 2000 Proceedings. Conference on Optoelectronic and Microelectronic Materials and Devices - - Trang 89-92
With the aim of creating a highly sensitive solid-state image sensor we developed a new CMOS image sensor that was made by overlaying a HARP (high-gain avalanche rushing amorphous photoconductor) photoconversion film on to the CMOS readout circuit. Prototype sensors were fabricated that used a new MOS transistor to increase breakdown voltage in the readout circuit. We developed connecting processe...... hiện toàn bộ
#CMOS image sensors #MOSFETs #Image sensors #Voltage #Pixel #CMOS process #Solid state circuits #Sensor phenomena and characterization #Amorphous materials #Charge-coupled image sensors
Characteristic of thin-film NTC thermal sensorsSENSORS, 2002 IEEE - Tập 1 - Trang 56-61 vol.1
The characteristics of thin-film negative temperature coefficient of resistance (NTC) thermal sensors fabricated by micromachining technology were studied as a function of the thickness of the membrane. The overall structure of the thermal sensor has the form of Au/Ti/NTC/SiO/sub x//(100)Si. An NTC film of Mn/sub 1.5/CoNi/sub 0.5/O/sub 4/ with 0.5 /spl mu/m thickness was deposited on the SiO/sub x...... hiện toàn bộ
#Thin film sensors #Sensor phenomena and characterization #Thermal sensors #Biomembranes #Temperature sensors #Thermal resistance #Gold #Pulsed laser deposition #Micromachining #Optical pulses
Low-cost planar PTF sensors for the identity verification of smartcard holdersSENSORS, 2002 IEEE - Tập 2 - Trang 1614-1619 vol.2
The properties of mechanical flexibility, low-cost and planar geometry make polymer thick film (PTF) sensors attractive for embedded smartcard biometrics. In this paper, PTF piezoelectric and piezoresistive pressure sensors are investigated for their potential to capture spatial human characteristics. However, it was found that the extent to which a smartcard flexes, and the planar sensitivity of ...... hiện toàn bộ
#Biosensors #Sensor phenomena and characterization #Mechanical sensors #Mechanical factors #Geometry #Polymer films #Thick films #Thick film sensors #Biometrics #Piezoresistance
Implantable glucose sensor: progress and problemsSENSORS, 2002 IEEE - Tập 1 - Trang 270-273 vol.1
Although the first implantable glucose sensors were developed a few decades ago, there is still no glucose sensor that can work reliably and for a long period of time after implantation. This loss of function in vivo is caused by events that affect the sensor itself (e.g. degradation, fouling...), as well as by changes in the tissue surrounding the sensor, caused by the implantation. Therefore, in...... hiện toàn bộ
#Sugar #Biosensors #Biomembranes #Biological control systems #In vivo #Electrodes #Biological tissues #Sensor phenomena and characterization #Monitoring #Diabetes
Analogic fiber optic position sensor with nanometric resolutionSENSORS, 2002 IEEE - Tập 2 - Trang 926-930 vol.2
This paper describes a miniature analogic position sensor. This sensor is dedicated to high resolution displacement measurement (10 nm) between two positions over a long range (a few millimeters). The working principle of the sensor is presented as well as experimental results.
#Optical fibers #Optical fiber sensors #Sensor phenomena and characterization #Optical sensors #Mirrors #Size measurement #Optical interferometry #Displacement measurement #Capacitive sensors #Position measurement
External disturbance rejection control based on identification of transfer characteristics from the acceleration sensor for access control of hard disk drive system7th International Workshop on Advanced Motion Control. Proceedings (Cat. No.02TH8623) - - Trang 52-56
In this paper, a new method for external disturbance rejection control which is based on the identification of transfer characteristics from an acceleration sensor is proposed. For hard disk drives, the external disturbance which should be reduced is growing with widespread use of movable computers and other independent machines. In order to reject the effect of the external disturbance, the autho...... hiện toàn bộ
#Control systems #Acceleration #Sensor phenomena and characterization #Sensor systems #Access control #Hard disks #Signal design #Algorithm design and analysis #Least squares approximation #Resonance light scattering