Digital ultrasonic flaw detector-南京诺金高速分析仪器厂

Digital ultrasonic flaw detector

Mfd350 is a portable and digital ultrasonic flaw detector. It can detect, locate, evaluate and diagnose various defects (cracks, inclusions, pores, etc.) inside the workpiece quickly, conveniently, without damage and accurately. It can be used in both laboratory and engineering field. This instrument can be widely used in manufacturing, iron and steel metallurgy, metal processing industry, chemical industry and other fields that need defect detection and quality control. It can also be widely used in the in-service safety inspection and life assessment of aerospace, railway transportation, boiler and pressure vessel.
Functional features
All Chinese display, master-slave menu, quick key and digital shuttle wheel, easy to operate,
Leading technology.
Full digital true color LCD, background color and waveform color can be selected according to the environment
Free to set.
The high-performance security battery module is easy to disassemble and disassemble, and can be independently charged off-line
The continuous working time of the instrument can be extended to more than eight hours by using the pool module,
Durable, leading the trend of the industry.
Main technical parameters
Detection range: (0 ~ 6000) mm
Operating frequency: (0.5 ~ 10) MHz
Sound speed range: (1000 ~ 9999) m / S
Dynamic range: ≥ 32dB
Vertical linear error: ≤ 3%
Horizontal linear error: ≤ 0.2%
Resolution: > 40dB (5p14)
Sensitivity margin: 60dB (200 mm deep and Ф 2 flat bottom hole)
Digital suppression: (0 ~ 80)%, without affecting linearity and gain
Electrical noise level: ≤ 10%
Probe type: single probe, double crystal probe and penetrating probe
Gate: inlet gate, loss gate; single gate reading, double gate reading
Alarm: beep alarm, LED light alarm
Power supply: DC 9V; lithium battery can work continuously for more than 6 ~ 8 hours
Dimension: 263 × 170 × 61 (mm)
Ambient temperature: (- 10 ~ 50) ℃
Relative humidity: (20 ~ 95)% RH
Note: the above indexes are measured when the probe frequency is 2.5MHz and the detection mode is full wave.
Amplification reception
Hardware real-time sampling: 10 bit AD converter, sampling speed 160MHz, high fidelity waveform
Half wave, half wave detection
The filter frequency band is (0.5 ~ 10) MHz, which is automatically matched according to the probe frequency, without manual setting.
Gate reading: single gate and double gate reading modes are optional; peak reading in gate
Gain: the total gain is 110dB, set 0,0.1db, 2dB, 6dB step value, unique automatic increase
With the function of adjusting and scanning gain, the flaw detection is fast and accurate.
Flaw detection function
Wave crest memory: retrieve the highest defect wave in real time and record the maximum defect value
Calculation of Φ value: automatic calculation and display of defect equivalent size after straight probe forging flaw detection and finding the highest defect wave
Defect location: real time display of defect level, depth (vertical) and sound path position
Defect quantification: real time display of defect equivalent DB value
Defect qualitative: through echo envelope waveform, it is convenient to judge by manual experience
Curved surface correction: it is used for flaw detection of curved workpieces and can display the circumferential position of defects in real time
DAC / DAG, which is not limited by sampling points. The curve will float automatically with gain, expand with sound path and move automatically with time delay. It can display the AVG curve of any aperture.
Crack height measurement: automatic measurement and calculation of crack height by using end point diffraction wave.
Inner door widening: amplify echo details for echo analysis
Dynamic recording: detecting real-time dynamic recording waveform, storing and playing back
Waveform freezing: freezing the waveform displayed on the screen for defect analysis
B-scan: real time scanning, cross-section display, can display the shape of workpiece defects, so that the detection results are more intuitive.
Transmit pulse
Pulse amplitude: low, medium and high level selection, suitable for a wide range of probes
Pulse width: fixed width, not adjustable.
Probe damping: 100 Ω, 200 Ω and 400 Ω can be selected, which can meet different working requirements of sensitivity and resolution
Working mode: single probe, double crystal probe, through detection
Detection range
Zero interface incidence ~ 6000mm (steel medium and longitudinal wave), continuously adjustable
Gate alarm
The gate position, width and height can be adjusted at any time; gate B can choose to set the incoming wave alarm or loss wave alarm; the buzzer in the gate and the LED lamp (LED light alarm is very effective in noisy environment) alarm and close.
data storage
100 sets of flaw detection parameter channels, which can adjust the combination parameters of various probes and instruments in advance, and set the flaw detection standards of various industries freely; it can store 1000 pieces of flaw detection echo signals and parameters, realize storage, reading and transmission through USB interface.
Real time clock
Real time tracking record of flaw detection date and time, and record storage.
communication interface
USB2.0 high speed communication transmission interface
Battery module
High capacity lithium battery module, online charging and offline charging two charging methods, convenient for flaw detection personnel.

Digital ultrasonic flaw detector

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