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The purpose of this paper is to study the spectral sensitivity characteristics of new pyroelectric sensor based on tetraaminodiphenyl film within the wavelength range of 0.4-10 µm and 300-3,000 µm.

Mylar film with the thickness of about 70 µm was used as the input window. The MDR-41 monochromator-based spectrometric complex and the quasi-optical spectrometer with the set of backward-wave oscillators were used for measurements of the pyrodetector spectral characteristics within the 0.4-10 µm and 300-3,000 µm ranges, respectively.

Mylar was found to have absorption lines within the range of 0.4-10 µm, which must be taken into account when broadband detectors developing. The noise equivalent power in the visible and infrared ranges was less than 6 × 10^–10 W/Hz^1/2, which is about five times lower than for analogue ones. In the sub-THz range, the pyrodetector sensitivity is 2-8 times higher than the Golay cell. The sensitivity of such pyrodetector weakly depends on the wavelength in the total measured range.

The pyroelectric sensor has good prospects for use in super wide spectral range, from ultraviolet to millimeter radiation, in spectrometers for scientific research, in industry for the operational control of THz radiation sources, as well as in security THz-systems.

The spectral sensitivity characteristics of the pyroelectric photosensor based on TADPh in the visible, infrared and terahertz ranges were measured. The prospects for the use of such sensors were determined.

This paper seeks to describe and discuss the historical development of IR sensors used in thermal imaging and to identify and consider some recent research trends.

This paper first considers cooled semiconductor photon detectors and their limitations and then traces the historical development of un‐cooled IR sensing technologies and their commercialisation. It then discusses certain present‐day developments and research trends.

This paper shows that military‐funded research by the USA in the 1980s led to families of un‐cooled IR sensors, pyroelectric detectors and microbolometers, that have since been widely commercialised. Research continues in the search for a technology that can yield un‐cooled sensors offering the sensitivity of cooled devices, such as Golay cells, microcantilever arrays and biomimetics.

This paper traces the technological evolution of un‐cooled thermal imaging sensors and identifies and considers recent research.

The paper presents a mathematical problem involving quasistatic contact between a thermo-electro-viscoelastic body and a lubricated foundation, where the contact is described using a version of Coulomb’s law of friction that includes normal damped response conditions and heat exchange with a conductive foundation. The constitutive law for the material is thermo-electro-viscoelastic. The problem is formulated as a system that includes a parabolic equation of the first kind for the temperature, an evolutionary elliptic quasivariational inequality for the displacement and a variational elliptic equality for the electric stress. The author establishes the existence of a unique weak solution to the problem by utilizing classical results for evolutionary quasivariational elliptic inequalities, parabolic differential equations and fixed point arguments.

The author establishes a variational formulation for the model and proves the existence of a unique weak solution to the problem using classical results for evolutionary quasivariational elliptic inequalities, parabolic difierential equations and fixed point arguments.

The author proves the existence of a unique weak solution to the problem using classical results for evolutionary quasivariational elliptic inequalities, parabolic difierential equations and fixed point arguments.

The author studies a mathematical problem between a thermo-electro-viscoelastic body and a lubricated foundation using a version of Coulomb’s law of friction including the normal damped response conditions and the heat exchange with a conductive foundation, which is original and requires a good understanding of modeling and mathematical tools.

A new lass of sensors for thermal imaging and detection in the infra‐red band is emerging which exploits the pyroelectric effect in ferroelectric materials. These sensors, which are fabricated in the form of large linear or two‐dimensional arrays of detectors interfaced to a silicon readout circuit, do not require cooling for their operation, in contrast to the photon detection based thermal imagers. They thus have the potential for low cost thermal detection and imaging. This paper examines the design of these arrays and the technologies employed in their fabrication, with particular attention to their specialised packaging requirements, by reference to a range of linear and two‐dimensional pyroelectric array devices that have been fabricated in this laboratory.

This study aims to present a novel technique to localize the human position in a room, to manage people in a specified space.

In this study, a real-time human sensing detection and smart lighting control was designed within a single silicon core. The chip has been successfully realized within 1.5 mm² silicon area using TSMC 0.25 um process.

This chip can read the weak signal of pyroelectric infrared (PIR) sensor to find the position of human body in a dark room and then help control the smart lighting system for an intelligent surveillance system.

This chip presented the retriggering delay control to expand the LED lighting time infinitely to avoid lighting-off suddenly while users stay on a space. This function is very useful in a practical intelligent surveillance system that is mainly based on human detection to better reduce power dissipation and memory space.

A Siemens research team has developed a sensor that remains passive unless an event such as a pressure change occurs, in which case it generates its own power and transmits a signal to a receiver. The next generation of the sensor is expected to measure only 2 × 5mm, and when manufactured in bulk should be a low cost device. Applications are envisaged to remotely controlled light switches and radiator thermometers, home, office and warehouse security, and many other areas. A current project, reported to be making good progress, is to mould the sensors into vehicle tyres to give continuous information on tyre pressure, axle load and other parameters. The sensor, which was developed at the Perlach R&D Centre of Siemens, near Munich, has been nominated for the prestigious German Zukunftspreis (Future Award).

Polymeric materials have gained a wide theoretical interest and practical application in sensor technology. They can be used for very different purposes and may offer unique possibilities. The paper gives a broad summary about the sensor structures and sensing polymer films used in a wide variety of sensors. Finally, the present status and perspectives as well as the advantages of specific polymer based sensors are summarised.