Multichannel analog transient acquisition system

Abstract

A 16‐channel data acquisition system MATAS‐16 capable of receiving data with a sampling frequency up to 40 MHz has been built to process the signals from measurements on the Texas Turbulent Torus experiment. To avoid the necessity of using a number of fast (and expensive) digitizers, the signals are first stored in serial analog memories. Subsequently, they are sequentially read out, digitized, and stored in digital memory. These data are then transmitted to the computer for analysis and are graphically displayed. Delayed trigger, post‐trigger, pretrigger, and change of sampling frequency during the data acquisition are also provided.