Accession Number : ADA079941


Title :   Technology Study on Piezoelectric Materials


Descriptive Note : Final rept. Jul-Dec 78


Corporate Author : HONEYWELL INC CLEARWATER FL SPACE AND STRATEGIC AVIONICS DIV


Personal Author(s) : Harrison, W. B. ; Thalheimer, A. G.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA079941


Report Date : 20 JUL 1979


Pagination or Media Count : 58


Abstract : The use of Honeywell's ring laser gyros technology is being considered for maneuvering reentry vehicle guidance where hostile nuclear radiation environments may be encountered by the ring laser gyro and its path length control (PLC) transducer. In an effort jointly sponsored by SAMSO and DNA, Honeywell and IRT 1 performed tests and analytical analysis on an operating laser gyro. It was shown that some 'mode hopping' transient motions were produced by the PLC transducer when subject to x-ray exposure. The materials used in the PLC transducer were analyzed and the high Z lead zirconate-lead titanate (PZ-PT) materials used in the transducer were considered as a partial cause of this phenomena. This program was therefore initiated to determine if lower Z materials, free of lead, were suitable replacements for the PZ-PT used in the PLC driver section of the transducer. (Author)


Descriptors :   *PIEZOELECTRIC MATERIALS , RING LASERS , CONTROL , PATHS , HOT PRESSING , SINGLE CRYSTALS , CERAMIC MATERIALS , LENGTH , PIEZOELECTRIC CRYSTALS , SULFATES , BARIUM TITANATES , ATOMIC PROPERTIES , ELECTROSTRICTION , GYROSCOPES , HYDROXYL RADICALS , POTASSIUM COMPOUNDS , GLYCINE , PEROVSKITES , PIEZOELECTRIC TRANSDUCERS , NIOBATES , RADIATION RESISTANCE , SODIUM COMPOUNDS , CADMIUM COMPOUNDS.


Subject Categories : ELECTRICAL AND ELECTRONIC EQUIPMENT
      CRYSTALLOGRAPHY


Distribution Statement : APPROVED FOR PUBLIC RELEASE