Germany, sensor development

In the near future, UV photodiodes made from polycrystalline wide band-gap semiconductors may fill the gap in the market. Although they have a lower sensitivity (photocurrent per area) they promise to have a better merit-rating in terms of photocurrent per sensor costs. The other major drawback of polycrystalline photodiodes, the risetime of micro- to milliseconds, is not relevant for household applications. Fuji Xerox Laboratories in Japan are developing visible-blind UV photodiodes made from polycrystalline GaN [12], while twlux AG in Berlin, Germany is developing visible-blind UV photodiodes made from polycrystalline titanium dioxide [13]. A prototype is shown in Fig. 5.45. 

Figure 13.4 Example of multifunctional geogrid with embedded optical fibre sensor, developed by Sachsisches Textilforschungsinstitut (STFI), Germany, in cooperation with Alpe Adria Textil, Italy.

A microcontroller board for sensor read-out was developed in collaboration with AppliedSensor (Reutlingen, Germany). This board provides the power supply and the necessary reference voltages and currents to the sensor chip. The sensor chip is mounted on a socket and connected to the microcontroller. The microcontroller provides a set of commands for programming and reading the on-chip registers, controller parameters and sensor values. The microcontroller also manages the data transfer between the f C interface of the microchip and a serial RS-232 interface for external read-out via a PC. The data stream is continuously read out in the measurement mode. Each data set contains the temperature of the microhotplate, the chip... 

Dittmann, B., Nitz, S. (2000) A new chemical sensor on a mass spectrometric basis-development and applications. In Schieberle, R, Engel, K.H. (eds) Erontiers of flavour Science, Proceedings of the 9th Weurman Flavom Research Symposium, Ereising, Germany, 22-25 June 1999, pp 153-159. 

Recently, Oh et al. have developed an SPR immunosensor capable of simultaneous detection of Legionella pneumophila. Salmonella typhimurium, Yersinia enterocolitica and Escherichia coli 0157 H7 [50,51]. Monoclonal antibodies against these bacteria were immobilized in individual sensing channels of the sensor chip of a Multiscope SPR sensor (Optrel, Germany) via protein G. For bacteria in buffer, the detection limit of 10 cfu mL and good specificity were achieved. No special treatment of bacteria was performed. 

Ishibashi, N. and Kaneyasu, K. (2009), Development and application of semiconductor gas sensor using MEMS technology , presented at 3rd GOSPEL Workshop Gas Sensors Based on Semiconducting Metal Oxide - New Directions,Tnbmgen, Germany, November 30-December 1,2009. 

WiUet, M. (2005), Recent developments in catalytic gas sensors. In 1st International Workshop an Smart Gas Sensors Technology an Application, Freiburg im Breisgau, Germany. 

The new borehole tool which was developed by IfG Leipzig and GMuG Ober-Morlen in Germany (Manihei et al. 2003) is shown schematically in Fig. 11.26. It consists of two parts - the hydraulic pressurization unit in the middle and two AE sensor arrays at both ends. It is applicable to borehole diameters between 98 mm and 104 mm. The overall length of the borehole tool is about 2 m. Each sensor array includes four AE sensors in a cross-section perpendicular to the borehole axis. The distance between the AE arrays is approximately 1.5 m. 

TT Electronics continues to be a major manufacturer of a wide range of passive electronic components, hybrid microcircuits and electrical connectors. The company has also successfully developed a wide range of temperature and pressure sensors and recently announced plans to extend its Dresden plan in Germany by 2325 m. ... 

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