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Doppler Electronic Technologies Co Ltd.

Since talent is the first element of business development, Doppler has well-known ultrasound experts, as well as young researchers, covering various aspects including acoustics, materials, electronics, mechanical and processing.

China

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Overview

Guangzhou Doppler Electronic Technologies Co., Ltd. is a high-tech enterprise that is engaged in R&D, manufacturing of ultrasonic instruments & transducers (probes) and dedicated to building a renowned world brand of ultrasound.  Jointly established by experts from home & abroad mastering the world's most advanced ultrasonic technologies, Doppler is a high-start, high-standard and high-tech company implementing modern enterprise system and specializing in R&D, manufacturing and sales of ultrasonic products. Doppler has now built world’s advanced production lines, passed ISO9001: 2015 Quality Management System Certification, CE Marking and European Standard EN 12668 Compliance Verification, and is qualified as one of national-recognized high-tech innovative enterprises.

Doppler has numerous industry elites from home & abroad, strong technical strength, and world’s advanced R&D and manufacturing instruments. Doppler is also in the leading position in the R&D of 1-3 piezo-composite crystal, ultrasonic phased array (PA) instruments & PA probes in China and even in the world. Doppler’s products are not only widely used as an alternative for imported products, but also well recognized by world’s famous companies to which Doppler is developing and supplying related products long term. 

Doppler has numerous industry elites from home & abroad, strong technical strength, and world’s advanced R&D and manufacturing instruments. Doppler is also in the leading position in the R&D of 1-3 piezo-composite crystal, ultrasonic phased array (PA) instruments & PA probes in China and even in the world. Doppler’s products are not only widely used as an alternative for imported products, but also well recognized by world’s famous companies to which Doppler is developing and supplying related products long term. 



Products & Services
PAUT Instrument

PHASCAN portable ultrasound phased array flaw detector

Introduction

PHASCAN portable ultrasound phased array flaw detector is a new-generation phased array inspection equipment developed by Doppler. PHASCAN has a powerful detection capability, can achieve a variety of scanning mode and focus mode, which greatly improves the detection reliability. Universal and friendly user-interface, simple operation, together with self-devoloped phased array probes , we can help solving a variety of complex problems and saving testing costs.

Character
(1) Dual independent channels for high-performance TOFD detection,  32/128 pulser/receiverchannels for phased array.
(2) Embedded focal law calculator, which can realize:
(a) With four kinds of scanning methods namely linear, sectorial, depth and static.
(b) True Depth, sound path, projection, and focal plane four kinds of focus types available.
(c) Optional display mode of A / S / B / C, etc.
(3) Calibration is more convenient to implement and can be calibrated for each beam.
(4) Multiple group for parallel scanning, equivalent of more than one instrument working simultaneously.
(5) Negative square-wave emission, with resolution up to 2.5ns, PRF up to 20KHz.
(6) 10.4'' TFT LCD color touch screen, resolution 800*600 pixel.

Function
(1) Convenient setup wizard
(a) Materials selection, with a database for velocities and configuration of workpiece for flat or curved surfaces.
(b) Fast probes and wedges selectable or user-defined.
(c) Different way of scanning modes and depth simultaneously available with the same probe.
(d) A variety of groove types to choose.

(2) Powerful data analysis
(a) With reference and measurement cursors, used to quantify defects and generate reports.
(b) Interactive analysis to the A, B, S and C-scan, defect analysis more precise.
(c) All measurement results can be obtained online,  off-line analysis can be performed after saving a complete A-scan.

(3) Accurate calibration
(a) Every beam is the same as single channel detector,  ensuring detection accuracy.
(b) Interactive menus guide users to easily complete the velocity,  wedge delay and sensitivity calibration.

(4) Perfect focus imaging
(a) Precise image resolution and angle accuracy of up to 0.1 °.
(b) Focus type can be set as needed, defects show more clearly.
(c) A variety of optional laws to meet the demand for more test condition.

Scanner

Wheel PA Probe

Introduction

Doppler Wheel PA Probe
Tire Parameters:
OD: 70mm/90mm;
Thickness: 8 to 15mm (8mm:5MHz; 15mm:0.5MHz);
Length: 70mm/120mm;
Acoustic Impedance: 1.5MRayl;
Material Attenuation: 0.14dB/mm/MHz.

Character

Composite material inspection;
Pipeline corrosion inspection.

CRS-2 Bracelet Scanner

Introduction
Doppler CRS-1/CRS-2 type Bracelet Scanner is suitable for pipe butt welds inspection with diameter between 0.8”(20mm) to 4.5”(114.3mm) Pipes by axial direction. Single, and Dual Chains are available for different inspection needs.

CRS-1 Bracelet Scanner

Introduction

Doppler CRS-1/CRS-2 type Bracelet Scanner is suitable for pipe butt welds inspection with diameter between 0.8”(20mm) to 4.5”(114.3mm) Pipes by axial direction. Single, and Dual Chains are available for different inspection needs.

FC-01 PA TOFD Scanner

Introduction
Doppler FC-01 type PA+TOFD scanner is suitable for pipe butt weld inspection with diameter over 6”(150mm) by circumferential direction, and flat butt weld inspection. Combine with four probe clamps & one wheel type encoder. Free collocation of PA probes & TOFD probes by inspection needs.
Range:    Ring: Φ6"(150mm) ~ Flat
Dimensions:    426x110x125mm
Encoder Step:   48Pulses/mm
IP Level:     IP67
Operating Temperature:  -10℃~50℃

FC-02 PA-TOFD Scanner

Introduction

PA/TOFD (FC02) Scanner support curvature adjustment, applicable to detection for pipe and plate in direction of circumferential and axial. Pressure regulator ensures wedge closely attach to work piece for an effective detection. By equipped with reliable brake device, the scanner can firmly stay at any position. By simple operation, most of scanning functions can be achieved manually. Scanner can be assembled with 4 probes according to detection requirement (PA / UT), convenient assembly and disassembly.

Character

Features
1. Assembly of 4 probes, probe clamping arms can be disassembled unilateral manually;
2. Two horizontal bars can be folded to adjust curvature, manual adjustment can realize detection from 7 inch pipe to plate in direction of axial ;
3. Two horizontal bars can be rotated, manually adjust a pair of probe clamping arms can realize detection from 6 inch pipe to plate in direction of circumference;
4. Both sides have a brake device, scanner can stay at any position;
5. Inner water distribution device , save more space ;
6. Space of walking wheel adjustable, freely work on short work piece;
7. Clamp wedge for different size, strong adaptability.

Function

Features
1. Assembly of 4 probes, probe clamping arms can be disassembled unilateral manually;
2. Two horizontal bars can be folded to adjust curvature, manual adjustment can realize detection from 7 inch pipe to plate in direction of axial ;
3. Two horizontal bars can be rotated, manually adjust a pair of probe clamping arms can realize detection from 6 inch pipe to plate in direction of circumference;
4. Both sides have a brake device, scanner can stay at any position;
5. Inner water distribution device , save more space ;
6. Space of walking wheel adjustable, freely work on short work piece;
7. Clamp wedge for different size, strong adaptability.
Parameter
1. Range: Ring: φ6"(150mm)~Flat
Radial:φ17"(425mm)~Flat
2. Dimensions: 446*182*128mm
3. Encoder Step: 48Pulses/mm
4. IP Level: IP67
5. Operating Temperature: -10℃~50℃
6. Clamp Width of Wedge: 32~48mm

Performance

Parameter
1. Range: Ring: φ6"(150mm)~Flat
Radial:φ17"(425mm)~Flat
2. Dimensions: 446*182*128mm
3. Encoder Step: 48Pulses/mm
4. IP Level: IP67
5. Operating Temperature: -10℃~50℃
6. Clamp Width of Wedge: 32~48mm
Standard Kits
1. Two brackets (including angle adjusting block, handle and brake device);
2. Two foldable horizontal bars with total length of 446mm;
3. One encoder with 2.8m cable;
4. Four probe clamping arms;
5. One water distribution device;
6. Carrying case and other accessories.

UT Instrument

Anyscan-30 Ultrasonic Flaw Detector

Introduction
When ultrasonic waves transmit in test materials, acoustics properties will be effected due to flaws existing in the material, thus these properties can be used to demonstrate flaws within the material. According to this theory, by use of ultrasonic waves can detect flaws like crack, cavity, inclusion when test various media such as metal, non-metallic materials and composite materials.
Digital ultrasonic flaw detector Anyscan-30 is a portable industrial non-destructive flaw detector, which can quickly and easily, without damage, accurate to a variety of work piece defects (cracks, inclusions, cavity, etc) of the detection, location, assessment and diagnosis. Both can be used in laboratories and project site.
Anyscan-30 is widely operated in the field of flaw detection and quality control, such as manufacturing industry, metallurgy of iron steel , metal processing industry, chemical lines , as well as operated in in-service safe inspection and life appraisal, such as aerospace, railway transportation, boiler and pressure vessel safety check in service and life assessment.
Anyscan-30 is a high-tech instrument which launched by Guangzhou Doppler Electronic Technology Co., Ltd in end of 2009. Full consideration of ergonomic made for instrument’s appearance, its structure is strong and light, easy and comfort to take, as well as shockproof. Scientific and rational setting of keystroke and menu, common features can be simply operated for more efficiency and less labor intensity. Instrument complies with European standard EN12668-1, has more advantages like high performance, stability, functional and practical, reliable quality, anti-interference ability and so on, also in full compliance with most industry standards, high praise for it both from domestic and abroad, after the software version upgrade to Ver1.10 it become more convenient for operation.
Anyscan-30 is equipped with imported lithium batteries, no memory effect, with high capacity, batteries service time can up to more than 8 hours, it is priority choice for testing operations especially for field work.

Character

  • Leading technical target, abundant applied assistant function
  • Intelligible setting of keys and menu, easy to operate
  • 400 MHz real-time hardware sampling, high-fidelity echo pulse
  • Broadband and amplifying circuit with low noise, selectable damping, excellent matching with low or high frequency probe
  • Excellent EMI design,good EMC performance
  • 5.7〞high resolution color LCD display

Function
(1) DAC Making, Storing and Recalling Function
(a) Making easily
When sampling dots one by one, it will automatically draw four lines such as “Assess Line”, “RATINE Line”, “GENERATRIX Line” and “Void Line”.
(b) Compiling conveniently
It can automatically modify each sampling dot and adjust the curve offset(to fit all kinds of standards).
(2) AVG Making, Storing and Recalling Function
(a) Making easily
It can draw curve by sampling one dot in “>3N” area automatically, or by sampling dots one by one in “<3N” area, which ensures the practicality.
(b) Applying conveniently
It can automatically adjust the curve equivalent and calculate the flaw equivalent sizeΦautomatically.
(3) RF Displaying Function
It can display the real original waveform, which is convenient for the user to analyze the details of the echo and help to analyze the flaw qualitatively.
(4) Curve Surface Amending Function
It can amend the test result of the arc surface automatically.
(5) Peak Holding Function
Assist to record the maximum echo.
(6) Envelope Function
Record the changing profile of the echo.
(7) Automatically Testing Echo Spectrum Function
It is used to test the center frequency and its spectral characteristics of the probe echo.
(8) Auto Gain Adjusting Function
The adjustable Auto Gain can be used to set echo amplitude conveniently.
(9) Weld Graph Displaying Function
The graph displaying is intuitional, which makes the flaw position legible. The graphs can be stored in the flaw detection report, which is convenient to be replayed and printed.
(10) Intelligent Calibrating Procedures
It is used to calibrate the material sound velocity rapidly, measure the probe delay automatically, calibrate the refraction angleβautomatically, and calibrate the probe easily.
(11) Setting Quick Channels Function
It has 30 quick channels which can store 30 groups of detect parameters in all, which makes the storing and recalling easily.
(12) Automatically Generating Reports Function
It generates detection reports based on detecting parameters and data automatically. The detection reports contain detailed detecting parameters, waveform graphs and detailed echo data, which can be directly printed by the connected printer or stored in the computer.
(13) Continuously Storing and Replaying Function
It can record the dynamic waveform while detecting, which makes the recorded data more detailed. The menu settings are analogous to the video function, which is easy to be understood and operated. The stored documents can be re-stored to the U disk or other storage devices directly at any time.
(14) Waveform Display Area Zoom Function
The waveform display area can be zoomed in to full screen, which can efficiently prevent misuse in field testing.
(15) Gate Area Zoom-in Function
The Gate area can be zoomed in to the whole display area, which is convenient to observe the waveform details.

Performance

  • Horizontal Linearity Error: ≤0.1%
  • Vertical Linearity Error: ≤3%
  • Surplus Sensitivity: ≥62dB
  • Dynamic Range: ≥40dB
  • Electronic Noise Level: ≤20%
  • Far-field Resolution: ≥30dB
  • working Mode: Single-probe or Dual-probes
  • Transmit Pulse: 400V negative spikes
  • Operating Frequency Range: 0.5MHz~20MHz, frequency subsection option, match probes well
  • Detection Range: 0.5mm~9999mm ( steel; longitudinal wave), adjustable continuously, switchable steps
  • PRF
  • range≤125mm: 1KHz;
  • 125mm1400mmSampling Rate: 400MHz hardware real-time sampling
  • Velocity: 1000m/s~15000m/s, adjustable continuously, switchable steps
  • Display Delay: -10mm~1000mm, adjustable continuously, switchable steps
  • Probe Delay: 0μs~199.9μs
  • Damping: 50Ω, 100Ω, 200Ω, 500Ω
  • Gain Adjustment: 0dB~110dB, step by 0.0/0.1/0.5/1.0/2.0/6.0dB
  • Rectification Mode: Full wave / Positive half-wave / Negative half-wave / RF
  • Display Screen: 5.7" high brightness TFT color LCD screen, 640×480 pixels
  • Measurement Mode: flank or peak
  • Store: store commonly-used detection parameters and test result data
  • Alarm: Hardware alarm, sound and light two methods, alarm models including positive mode, negative mode and DAC mode
  • Communication Interfaces:USB, Ethernet
  • Operating Temperature: -10~+50℃
  • Battery: Lithium battery (10.8V 5200mAh), supplying power continuously for more than 6 hours
  • Power Supply: AC: 100-240V; DC: 15V/4A
  • Weight: about 1.4Kg (including battery)
  • Language: Chinese / English
  • Waterproof Level: IP54 standards

 

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