IZFP's WS98-EN™
Eddy Current board is designed for PC-aided eddy current testing. In
combination with suitable software, the WS98-EN™ is a complete multi-frequency
eddy current instrument, and by using the modular design concept, it permits
multi-channel operation with a multitude of sensor and frequency
channels. The broad analog bandwidth and subsequent numerical filters
allow for contemporary signal processing algorithms and new testing concepts
with high-speed multiplexing. Powerful data processing and real-time
numerical filtering are provided by the onboard
digital signal processor (SHARC).
PC Software for setup and control of the eddy current system,
data acquisition,
data display and data analysis
Slave Software for buffering and transferring data between PC and DSP
via Ethernet
DSP
Firmware providing
digital data filtering (data reduction, high-pass, low-pass, regression
analysis), fast multiplexing of sensors and/ or test frequencies, setup
of hardware functions (e.g., frequency generation, gain, A/D conversion,
etc.), communication with data interfaces and diagnostics for hardware
and firmware functions
Features
Modular
hardware and firmware design
Interfacing to the WS98 board via Ethernet
connection
Extensive
use of numerical processing replacing conventional analog
circuitry
High
long-term stability, dynamics, and reproducibility of the ET
signals
Test
frequency ranging from 10 Hz to 10 MHz
A/D
conversions at 16 bit (156 kHz cycle frequency)
Time-multiplexing
mode for sensors and/or frequencies at 2.5 kHz above 100 kHz test
frequency (300 Hz to 500 Hz test frequency)
High
and low pass digital filters
Online
signal processing in multi-frequency mode for suppression
of disturbing signals and calibration of inspection targets (PC
Software)
Options
Single-board and multi-board systems
w/ up to 16 boards (max. 64 sensors)
Multi-Channel MUX
Active sensor drivers for sensor-to instrument distance
exceeding 5 yards
