The UDS2-77 ultrasonic single rail flaw detector is a mechanized trolley intended for the inspection of one rail line.
The flaw detector employs a unique scanning scheme that allows testing the entire rail section, except for foot flanges, by pulse echo, echo-shadow and echo-image techniques.
User-friendly operation
Both mechanics (trolley) and electronics (software) of the UDS2-77 are ergonomically designed, have a user-friendly intuitive interface, as well as are resistant to severe weather conditions that may occur during operation on a railway track.
Features
Purpose
Software
The trolley is made from light but rigid composite materials, due to which the total weight of the device is 16 kg only.
User-friendly operation
Both mechanics (trolley) and electronics (software) of the UDS2-77 are ergonomically designed, have a user-friendly intuitive interface, as well as are resistant to severe weather conditions that may occur during operation on a railway track.
Key features
Representation of test results in the form of A-scan, multi-A-scan, B-scan for all channels;
Real-time display of test results in the form of B-scan;
Data recording and saving (operator’s name, line, direction, track number, left/right position, initial track coordinate, date, time, final track coordinate);
Screenshot saving (PrintScreen);
Saving of test results in the form of data array (B-scan) to the internal memory;
Use of USB flash drive for transmitting test results to PC;
Availability of measuring gates in A-scan & B-scan modes;
Post-viewing of test result on the flaw detector with the possibility to measure conditional sizes of defects;
Possibility to put the track markers (e.g. “Bridge”, “Crossing”, “Bolt hole”, etc.).
Trolley design
1. Weight of the trolley is 16 kg only.
2. Modular design of the trolley consists of a support frame with adaptive rollers; electronic unit for control and visualization; multiplexer units; battery pack; couplant (water) tank; probe units; suspension mechanism of the probe units to place them into operation/transportation position; encoder.
3. The position of the electronic unit for control and visualization can be adjusted along three axes.
4. The probe unit is positioned cross-wise to the rail with the aid of a dedicated control device.
5. The probe unit can be centered using the adaptive rollers.
6. The suspension mechanism of the probe unit ensures a stable coupling if the trolley is tilted for up to 150.
Probe units
The UDS2-77 flaw detector employs contact probe units of conventional type with both standard and specialized probes.
The probe units are made from wear resistant plastic material, with hard-metal inserts on the working surface.
Specifications
UT techniques: pulse echo, (echo image) and echo shadow.
Number of ultrasonic channels for 100% scanning: 13.
Nominal test frequency: 1 to 6 MHz.
Distance between probe pulse sendings: 1 mm at motion speed up to 5 km/h.
Variation range of receiving path gain: 0 to 100 dB, with a step of 1 dB.
Memory capacity for data storage: not less than 8 Gb.
Weight of the flaw detector without battery and couplant: up to 16 kg.
The flaw detector is powered by an independent power source (battery) with the rated voltage from 10.8 to 14.6 V and rated capacity of no less than 18 А·h.
Time of operating mode setup: up to 15 sec.
Time of continuous operation of the flaw detector with a fully-charged battery: no less than 8 hours.
Protection rating: IP 64.
The following alarms are generated during flaw detection: light – separate for every rail and common (via all test channels); sound – separate for every rail and common (for a group of channels); visual, on the screen – separate for every rail and every channel.
GPS system is used to determine defect location coordinates on the track
