Acquisition And Storage; Introduction - HBM Genesis GEN5i User Manual

9 Acquisition and Storage

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9.1

Introduction

Data acquisition hardware within the GEN5i is based on the concept of a
recorder. A recorder consists of a number of acquisition channels that share
the same basic recording parameters sample rate, sweep length and pre- and
post-trigger length. Usually a single recorder is physically identical to a single
acquisition card. Multiple recorders can be placed in a single mainframe. The
mainframe is the housing for the recorders, provides the power and includes
the interface for the local area network. A mainframe has its own network
address (IP address).
For the sake of simplicity we will consider a single channel only in this section.
Figure 9.1: Simplified generic single channel data acquisition system
In the GEN5i data acquisition system and the Perception software that goes
with it a separation is made between acquisition and storage. Acquisition is
the act of digitizing analog data and makes it available for monitoring or storage.
Storage is the actual archiving of digitized data. Recording (verb) is acquisition
+ storage.
GEN5i
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