Accession Number:
ADD010527
Title:
System for Recording Waveforms Using Spatial Dispersion.
Descriptive Note:
Patent,
Corporate Author:
DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s):
Report Date:
1983-06-21
Pagination or Media Count:
8.0
Abstract:
This patent discloses a waveform recorder wherein surface acoustic waves excited in a piezoelectric-insulator-semiconductor layered structure produce a traveling electric field in the semiconductor substrate. Charges stored in the traveling potential wells and representing the instantaneous amplitude of a waveform to be recorded are transferred at high speed and density to different respective spatial locations. Because each successive well represents a different time instant of the waveform, the different spatial locations correspond to different times. The output signal from each of the locations can be selectively delayed before application to a display oscilloscope to enable display of the waveform at a rate many times slower that the actual frequency of the signal waveform.
Descriptors:
Subject Categories:
- Line, Surface and Bulk Acoustic Wave Devices
- Test Facilities, Equipment and Methods