Abstract:
Acoustical ringing which results from piezoelectric effects in an electrooptical modulator is suppressed by mounting the modulator crystal between massive, acoustically absorbent, support members which also provide an electric circuit interface for applying electric signals to the modulator. Solder provides such an absorbent mounting for a lithium tantalate electrooptical modulator crystal. Both solder support members are flowed into place during the same heating interval and permitted to cool simultaneously.
Abstract:
THE MODULATED OUTPUT OF A VARIABLE-FREQUENCY OSCILLATOR INCLUDED IN AN ANALOG-TO-DIGITAL ENCODER IS PROCESSED TO ABSTRACT THEREFROM SIGNALS FOR SYNCHRONIZING THE OPERATION OF A SAMPLING PULSE GENERATOR INCLUDED IN THE ENCODER.