Measurement Computing WBK Options - Manual (Page 5)

WBK Option Cards and Modules 988397 Introduction 1
An Introduction to WBKs
What are WBKs?…… 1
How do WaveBooks and WBKs Interrelate? ……4
How are WaveBook Systems Powered? …… 5
How are WBK Modules Mounted to other Modules or to WaveBooks? …… 5
What are WBKs?
WBKs are WaveBook system options that exist in the form of cards or modules. The WBK options can be used to
enhance and/or expand your WaveBook system.
Internally, WaveBook has room for one signal-conditioning card. Externally, one or more expansion modules can be
used with a WaveBook.
Reference Note:
The WBK option cards and modules that follow are detailed immediately after this introduction.
The information is presented in alpha-numerical order and includes product specifications.
WBK Options
Note: The items represented in the table are not shown to the same scale.
WBK10A
Analog Expansion Module
8 Channels via BNC Connectors
Each WBK10A module can be used to provide WaveBook with 8
additional differential-analog-inputs. The modules are equipped with
a programmable gain instrumentation amplifier (PGA) and, like the
WaveBook, each has a built-in expansion bus.
Up to eight WBK10A modules can be cascaded together for a
system capacity of 72 differential channels. Each module is capable
of supporting a WBK11A, WBK12A, or WBK13A option card.
WBK11A
Simultaneous Sample & Hold Card (8 channels)
The WBK11A card can simultaneously sample 8 channels and can
be installed inside a WaveBook or in a WBK10A module. The cards
allow for concurrent (<150 ns) capture of multiple input channels and
virtually eliminate channel-to-channel time skewing.
The WBK11A option is factory install only.
WBK12A
Programmable Low-Pass Filter Card
(8 channels)
WBK13A
Programmable Low-Pass Filter Card with SSH
(8 channels)
WBK12A and WBK13A are 8-channel programmable low-pass filter
cards for use with WaveBook data acquisition systems. These cards
install directly into a WaveBook or WBK10A module and provide
programmable low-pass filtering over all channels. Multiple WBK12A
and WBK13A cards can be installed in one system for up to 72
channels. All of the cards’ low-pass filters and cutoff frequencies are
configured via software.
WBK13A cards have the additional capability of sampling all
channels at the same time.
The WBK12A and WBK13A options are factory install only.
WBK14
Dynamic Signal Conditioning Module
8 Channels via BNC Connectors
The WBK14 is a dynamic analog signal input module. It enables
WaveBooks to interface with piezoelectric transducers that include
accelerometers, microphones, and force/pressure transducers.
Each WBK14 channel has a:
• current source for transducer biasing
• high-pass filter
• programmable gain amplifier
• anti-aliasing low-pass filter
• simultaneous sample-and-hold (SSH) amplifiers