IDEA #4FB8DA Thermoelectrically Cooled Sensor For Determination Of Elemental Composition Of Soil

THERMOELECTRICALLY COOLED SENSOR FOR DETERMINATION OOFF ELEMENTAL COMPOSITION OOFF SOIL APPLIED RESEARCH • SENSORSDescription 1. Energy resolution, not worse, 600eV. For energy of 5.9 keV. 2. Isolation resistance between disconnected electrical cir(cid:2) cuits, not over, 20МОhm. At relative humidity of 80%. 3. Power requirement in the supply circuit of thermoelectric cooler,40 W. 4. Time of achieving the mode, not more,10 mines. 5.Supply voltage of thermoelectric cooler, 12±5V. 6. Pressure inside thermoelectrically cooled sensor, not over, 5•10(cid:2)3mm Hg. In operating state. 7. Cooling at ambient temperature of 0oC, not over, minus 1000С. 8. Weight, not over, 1500g. 9. Service life at continuous operating mode, not over, 2 hours. 10. Service life at periodic operating mode, not less, 30 hours. 11. Possibility of failure(cid:2)free performance, not less, 99.9%. 12. Time of depressurization of thermoelectric sensor, not less, 5 mines. Innovative Aspect and Main Advantages Fig.1 Thermoelectrically cooled sensor for the determination of element composition of soil. Stage ooff Development Tested, available for demonstration – field tested. Already on the market. Si (Li) detector is used as an X(cid:2)ray(cid:2)gamma sensor. Contact Details To provide high sensitivity and resolution of the sensor, ther(cid:2) moelectric cooling down to the temperature of minus 100oC is used. Thermoelectrically cooled sensors provide energy resolution of order 600 eV for the energy of 5.9KeV, allowing to deter(cid:2) mine element concentration in the soil up to 10(cid:2)6. To measure the energy resolution of thermoelectrically cooled sensors, the Fe55 and Co57 isotopes have been used. Organization: Institute of Thermoelectricity Contact person: Lavska Lyudmyla Address: General Post(cid:2)Office, Box 86, Chernivtsi, 58002, Ukraine Теl: (3803722) 7 58 60 Fax: (3803722) 41917 E(cid:2)mail: anatych@inst.cv.ua Website: www.ite.cv.ukrtel.net INNOVATIVETECHNOLOGY OPPORTUNITIES FROM THE STCU 63