Accession Number:

AD0780722

Title:

A High Frequency Burst Signal Processor for Laser Velocimeter Applications.

Descriptive Note:

Interim rept. 26 Aug 71-30 Jun 73,

Corporate Author:

PURDUE UNIV LAFAYETTE IND SCHOOL OF MECHANICAL ENGINEERING

Personal Author(s):

• Zammit,Ronald E.
• Pedigo,Michael K.
• Stevenson,Warren H.

Report Date:

1974-01-31

Pagination or Media Count:

47.0

Abstract:

Different types of Laser Doppler Anemometer LDV processors are discussed. The electronic circuit for a Doppler burst processor developed at Purdue University is described in detail. In use with a differential Doppler LDV optical system, this circuit provide a data rate up to 100 KHz, with a maximum of 100 MHz. Doppler frequency, results of preliminary velocity measurements in a two-dimensional transonic nozzle are presented. Author

Descriptors:

• *Laser velocimeters
• *Signal processing
• Nozzle gas flow
• Transonic flow
• Two dimensional flow
• Doppler effect
• Spectrum analyzers

Subject Categories:

• Test Facilities, Equipment and Methods
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE