Intelligent sensor

With the help of various tables presented, readers could gather some knowledge about the nature of the devices very commonly used in embedded circuits which at present enjoy tremendous advantages over microprocessor based systems (e.g., PLC) in application specific instmmentation devices such as sensors, intelligent positioners, etc. 

Software-based parameterization of safety-related parameters shall be considered as a safety-related aspect ofSRECS design that is described in the software SRS. Parameterization shall be carried out using a dedicated tool provided by the supplier of the SRECS subsystem(s) e.g., analog sensors, intelligent safety relays, etc. 

Interrupts Become Features Using On-Sensor Intelligence for Recognition Tasks... 

Sensors. One growth area for electronic ceramics is in sensor appHcations. Sensors (qv) are devices that transform nonelectrical inputs into electrical outputs, thus providing environmental feedback. Smart, or intelligent, sensors also allow for mechanisms such as self-diagnosis, recovery, and adjustment for process monitoring and control (see Process control). 

Another tool the interstates use to maintain their pipelines is a device known as an intelligent pig. Propelled through the pipeline with the gas stream, these devices, taking thousands of measurements with electronic sensors that can be analyzed later by computers, can inspect pipeline interior walls for corrosion or other defects and remove accumulated debris from a section of pipeline. Pipelines also use state-of-the-art coating and cathodic protection to battle corrosion. 

Intelligent vehicles have been developed with arrays of ultrasonic probes for pipeline inspection — one commercial version contains 512 ultrasonic sensors. 

Processing intelligent What is needed is to cut inefficiency, such as the variables, and in turn cut the costs associated with them. One approach that can overcome these difficulties is called intelligent processing (IP) of materials. This technology utilizes new sensors, expert systems, and process models that control processing conditions as materials are produced and processed without the need for human control or monitoring. Sensors and expert systems are not new in themselves. 

So far we have discussed the one-sensor/one-analyte approach. However, arrays of independent electrodes can offer much more analytical information and thus hold a great potential for many practical applications. These include the development of intelligent sensing systems capable of responding to changes in the chemical environment of the array. 

Intelligent transmitters have two major components (1) a sensor module which comprises the process connections and sensor assembly, and (2) a two-compartment electronics housing with a terminal block and an electronics module that contains signal conditioning circuits and a microprocessor. Figure 6.9 illustrates how the primary output signal is compensated for errors caused in pressure-sensor temperature. An internal sensor measures the temperature of the pressure sensor. This measurement is fed into the microprocessor where the primary measurement signal is appropriately corrected. This temperature measurement is also transmitted to receivers over the communications network. 

It should be capable of monitoring and controlling as wide a range of process devices as possible, including intelligent instruments and sensors, and should be able to log and retrieve large amounts of process data. 

Smart dust Researchers at the University of California, Berkeley, have developed smart dust—tiny, intelligent wireless sensors that can communicate with each other, form autonomous networks, reprogram themselves, and monitor almost anything. They have already been tested for various military and nonmilitary applications, but their potential in providing pervasive health care is equally huge [15]. 

A systematic analysis of a process signal over (1) different segments of its time record and (2) various ranges of frequency (or scale) can provide a local (in time) and multiscale hierarchical description of the signal. Such description is needed if an intelligent computer-aided tool is to be con--structed in order to (1) localize in time the step and spike from the equipment faults (Fig. 1), or the onset of change in sensor noise characteristics, and (2) extract the slow drift and the periodic load disturbance. 

The speed with which the data need to be compressed depends on the stage of data acquisition at which compression is desired. In intelligent sensors it may be necessary to do some preliminary data compression as the data are collected. Often data are collected for several days or weeks without any compression, and then stored into the company data archives. These data may be retrieved at a later stage for studying various aspects ol the process operation. 

D. Wienke, T. Vijn and L. Buydens, Quality self-monitoring of intelligent analyzers and sensor based on an extended Kalman filter an application to graphite furnace atomic absorption spectroscopy. Anal. Chem., 66 (1994) 841-849. 

Volume 3 Intelligent Sensors (edited by H. Yamasaki) Volume 4 Semiconductor Sensors in Physico-Chemical Studies (edited by L. Yu. Kupriyanov)... 

When the development of a scientific field expands, the need for handbooks arises, wherein the information that appeared earlier in journals and conference proceedings is systematically and selectively presented. The sensor and actuator Held is now in this position. For this reason, Elsevier Science took the initiative to develop a series of handbooks with the name "Handbook of Sensors and Actuators" which will contain the most meaningful background material that is important for the sensor and actuator field. Titles like Fundamentals of Transducers, Thick Film Sensors, Magnetic Sensors, Micromachining, Piezoelectric Crystal Sensors, Robot Sensors and Intelligent Sensors will be part of this series. 

Household appliances make up one of the largest markets for electrotechnical and electronic products. While comparatively simple versions of sensors and microsystem products, such as temperature sensors or level sensors, have long been used in household appliances, new and improved sensors conquer the market at a breathtaking rate. The way modern sensors with intelligent control systems are used is one of the main distinguishing features between the various products and companies. 

Automatic baking control by introduction of intelligent multigas sensors (artificial noses). 

Rusche, S. Kostrzewa, G. Intelligent Combustion A Gas boiler with a new control and safety device using the signals of a semiconductor-sensor. Proceedings Eurogas 99, Bochum 1999. 

Another way to achieve high detergency performance while keeping environmental impacts low is by making intelligent products with built-in sensor functions. In these applications, the products can respond to external stimuli and fulfil their task. The inherent sensoric principles of two recent innovations, detergent tablets and dishwashing tablets with built-in rinse aid, will be discussed. 

Thin Film Temperature Sensors for the Intelligent Kitchen... 

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