FIFTH CANADIAN CONFERENCE ON NONDESTRUCTIVE ... - IAEA

- 196 -
storage terminal. However, the major problems associated with off-line
analysis, data retrieval and record keeping still remained. The R'Eddy
Record system solves these problems.
2. SYSTEM DESIGN OVERVIEW
2.1 General
The R'Eddy Record heat exchanger inspection system provides computer
controlled data acquisition, probe positioning, data storage and real-time
graphical data display with hardcopy printout. The data display and hardcopy
were specifically designed to facilitate on-line analysis and provide a long
term quality assurance document. This one page printout provides a permanent
record of the X and Y signal traces, separated features, tube Identification
and pertinent scan information of a single channel of eddy current test data
for immediate analysis and future review. Three channels of eddy current
data can be collected and stored along with record identifiers and position
information on magnetic tape and strip chart. These data records can quickly
be retrieved and displayed through the playback feature. The system will
collect and display any twin set of analog signals making it a general data
acquisition system independent of the type of probe or probe configuration
and the particular signal generating instrumentation.
The overall system configuration can be divided into a probe drive control
subsystem (Figure 1) and a data processing subsystem (Figure 2). The modular
design allows for flexibility in configuration, and ease of maintenance and
updating. The overall weight and physical dimension of any system module
(weight