Development and manufacturing of non-
destructive testing units and system
Ultrasonic Flaw Detector NOVOTEST UD2301
6
5.1. Electronic unit of flaw detector
Flaw detector makes the formation of electrical pulses to excite the
piezoelectric transducer, gain derived from the piezoelectric
transducer signals, processing and visualization of the formation and
representation measurements in digital form, saving data in non-
volatile memory and transfer it to PC.
The appearance of the electronic unit is shown on picture 6.1.
Operation of flaw detector makes by keyboard. Visualization of
signals and display of measurement results, the state of flaw
detector and other information is shown on the LCD.
Connecting the probe is carried out by the coaxial cable through the
connectors LEMO, which are located on top side of the devices
body.
The device is powered by a three batteries type AA, or the included
in set external charger connected to the mini-USB connector located
on the bottom of the electronic unit of the flaw detector.
5.2. Probes
Flaw detector is designed to operate with the contact, dual element
and separated ultrasonic transducers with an operating frequency in
the range from 1 to 10.0 MHz.
The device uses a generator of bipolar sounding pulses with
adjustable duration, which provides compatibility with both probes:
have integrated terminating inductance and without them, allowing
operation operate with most types of probes on the market.
Depending on the type of probe it is used two types of cables and,
correspondingly, two ways to connect the probe:
- Ultrasonic transducers (type S) are connected via single cable
LEMO-LEMO to the left LEMO connector;
- Dual element transducers (type D) are connected by a double
cable 2LEMO-2LEMO. Right connector is used to connect the
