The basic working principle of eddy current testing instrument is as follows:

When the test coil with alternating current is close to the conductor workpiece, the alternating magnetic field generated by the coil will cause the conductor to generate current (eddy current). The size, phase and flow pattern of eddy current are affected by workpiece properties (conductivity, permeability, shape, size) and defects. The voltage and impedance of coil are changed by the reaction of magnetic field.

Therefore, the change of voltage or impedance of the test coil can be measured by the instrument, and the nature, state and defect of the workpiece can be judged.

Characteristics of Eddy Current Testing Instrument

1. Scope of application of eddy current testing instruments

(a) Process inspection and final product inspection: quality control during manufacturing process or rejection of non-conforming products in finished products.

1. b) In-service inspection: periodic inspection for mechanical parts and heat exchange pipes and other facilities.

1. c) Other applications: thickness measurement of metal sheets and coatings, material sorting, conductivity measurement, etc.

2. Advantages of Eddy Current Testing Instruments

(a) No contact with the workpiece and no coupling agent are needed in the detection, which can be carried out at high temperature. At the same time, the probe can be extended to remote detection, which can effectively detect the narrow area and deep hole wall of the workpiece.

1. b) The detection sensitivity of surface and near surface defects is very high.

1. c) It is easy to realize high-speed and high-efficiency automatic detection for the detection of tubes, rods and wires. It can digitally process the test results, and then store, reproduce and process the data.

BKN is one of the professional ndt equipment manufacturers,we master the eddy current testing principle,we also produce ndt testing machine,we will be your best partner.

Vehicle exhaust remote sensing system receives more attention and reliability with its advantages of speediness, convenience and wide monitoring range, etc. It can monitor exhaust gas towards gasoline vehicles as well as diesel vehicles on the road and identify the high-emission vehicles among moving vehicles without affecting normal running. The system connects monitoring data, vehicle emission information and exhaust annual inspection data through modern communication technology to realize integrated management for vehicle emission data. For vehicle pollution prevention and management department as well as vehicle inspection institution, the establishment of the system can provide system support for general management towards the data of road exhaust pollution condition, over-emission vehicle capture and inspection data in detection field for specific vehicle.

Car emissions test equipment can divided into mobile remote sensing system and stationary remote sensing system. Stationary remote sensing system, which includes horizontal stationary type and vertical stationary type, can be installed on city primary roads for continuous vehicle measurement while mobile remote sensing system can decide measuring location and time, which becomes an effective complement for fixed point remote sensing measurement.

Feature of Vehicle Exhaust Remote Sensing System:

Movable Type:

Calibration system integration

Narrow-brand radar speed measurement, strong anti-interference ability

Convenient Optical path adjustment, 15-minute layout

WIFI wireless data transmission, convenient for site checking

Highly integrated design, small size and light

Horizontal Stationary Type:

Real-time data matching, convenient and accurate

Passive design at the reflection end, reduce installation difficulty

Adopt imported laser device with excellent performance and high reliability

Vertical multiple-point detection of vehicle position, measure exhaust gas more accurate and timely.

Vertical Stationary Type:

Real-time data matching

Gasoline-diesel integration design

Remote operation and management, convenient for operation and maintenance

Integrated intelligent calibration system, more convenient for operation

Optomechanics design with independent intellectual property, strong anti-interference ability

HANGZHOU ZETIAN TECHNOLOGY, established in 2008, is one of the most professional vehicle emission testing equipment manufacturers in China. Welcome you to visit us. Currently, we are looking for certificated distributor and OEM clients throughout the world. R&D cooperation is also welcomed. If you have any interest, please contact us!

Overview

ERMS2000-V vertical stationary vehicle exhaust remote sensing system is a system that sets above the multi-lane and monitors the exhaust pollutants of every moving vehicle on each lane, It can measure CO, CO2, HC, NO and opaque smoke intensity rapidly and accurately; record the license, speed and acceleration of the car as well as the environmental parameters on micro air station. The system is composed of a gas monitoring unit, opacity monitoring unit, speed/acceleration monitoring unit, license capture unit, micro weather station and IPC of TDLAS and UV-DOAS technology. The system is with rapid and effective measurement, high automation and detection rate, less maintenance; each lane works independently, measures simultaneously without mutual interference.

Feature Of ERMS-2000-V Vertical Stationary Vehicle Exhaust Remote Sensing System

Stationary overlook installation:

dispensing with repetitive installation and overcome the accurate detection for multi-lane that current remote device cannot achieve to make multi-lane independent and simultaneous detection possible; not required people for watching to economize on manpower;

Simultaneous monitoring on gasoline/diesel vehicle:

adopt spectrum technology of high stability, which can detect emission pollutants of both gasoline and diesel vehicles at the same time to greatly reduce device cost;

Narrow-wave radar speed measurement:

adopt narrow-wave radar speed measurement with low microwave irradiation, low power consumption, long service life, high stability, and reliability; locate target accurately to avoid adjacent clutter interference; fast response time to ensure the capture rate and instantaneity of the target;

Integrated calibration system:

four components (CO, CO2, HC, NO) can be calibrated simultaneously, support both manual/auto calibration with simple operation and high efficiency;

Large measuring range:

a portal frame is as high as 4-6 meter, which is able to monitor emission for different types of vehicle; full road coverage without occupying lane and affecting traffic;

Real-time data matching:

real-time data matching without post-processing; output monitoring results in real time; combined with vehicle identification technology, screen excessive emission vehicle;

Remote online monitoring system:

online monitor battery status, calibration state, system alarm information, wireless communication signals and etc. Remote monitoring and operation, convenient for the operator to monitor system parameters;

Auto record and storage:

logs will record all the operating and alarm information for query and tracing, which is convenient for problem processing and solving. The outage will not affect data storage

Application Of ERMS-2000-V Vertical Stationary Vehicle Exhaust Remote Sensing System

The vehicle emission analyzer is used for the online monitoring of CO, CO2, NOx, HC, and opacity in vehicle exhaust emission. All parts are in the deft design and convenient for installation, which can be installed in all road sections and toll gates. It can form an online monitoring web through appropriate deployment in the typical area. Combined with network transmission technology,it can achieve data sharing and result display with environment detection center and vehicle management center, which provide the scientific basis for decision maker and vehicle exhaust pollution control measures, thus achieve the goal of online monitoring for the city vehicle pollution.

Specification Of ERMS-2000-V Vertical Stationary Vehicle Exhaust Remote Sensing System

Pollutant Repeatability: NO, HC, CO, and CO2 is a half of the maximum permissible error.

Speed Range: 5km/h~120km/h

Speed Detection Error: ≤±1.5km/h

Acceleration Error: ≤±0.2m/s2

Vehicle Image Capture Rate: ≥98%

Vehicle License Recognition Rate: ≥90%

Vehicle Image: picture will be saved in database in form of JPEG

Data Transmission Method: wireless wifi, wired broadband or 4G transmission

Response Time: ≤0.5s (T90) (system processing period)

Ambient Temperature: -40℃~+85℃, error≤±0.2℃

Relative Humidity: 0~100%RH, error≤±3%RH

Wind Seed: 0~60m/s, error≤±0.3m/s or ±3%, take the maximum

Atmospheric Pressure: 10hPa~1100hPa, error≤±5hPa

Eddy current testing of welds is the use of eddy current technology to test the welded pipe, this type of testing is based on the premise of lossless. At the same time, we need to be clear that the welded pipe is, in general, the steel pipe that we usually say, which is a welded steel pipe.

Eddy current weld testing is a non-destructive testing technique for detecting component defects by using the principle that the eddy current induced by the AC electromagnetic coil on the surface of the metal member encounters a defect. The oscillating current is generated in the conductive member by the excitation coil by the principle of electromagnetic induction, and the amount of change in the eddy current is measured by the detecting coil, thereby obtaining information on the component defect.

Eddy current testing is a non-destructive testing technique in which an alternating current electromagnetic coil induces eddy currents on the surface of a metal member. It is suitable for the detection of defects in conductive materials, including ferromagnetic and non-ferromagnetic metal materials.

BKNET-01\02 NDT weld testing equipment is used for on-line and off-line inspection of welded pipes. It has high sensitively to axial defects such as unwelded welding, dark spots and open cracks. In the production process, products are caused by welder failure. Slow and long-term injuries can be reliably detected.

BKNET-0102 Welded Pipe Eddy Current Flaw Detector performance 

BKNET-0102 Welded Pipe Eddy Current Flaw Detector Features:

High precision end and end-to-tail signal removal

High precision real-time, delayed alarm output

Fast digital／analog electronic balance

Memory track delay blanking function  

Non-equal amplitude phase／amplitude alarm domain

Remote automatic help system

Synchronous alarm output for internal and external clock control

Nanjing BOKENA Automation System Co., Ltd., originated from the eddy current testing laboratory of the Nanjing University of Technology. It is one of the most professional ndt testing equipment suppliers in China. We sincerely invite and welcome people from all around the world to invest and create more values together.

Are you looking for a perfect eddy current testing machine manufacturer? BOKENA is one of the most professional eddy current test equipment suppliers in China. ECT Eddy current testing is a non-contact testing method, which mainly uses the electromagnetic field and electromagnetic induction between metals to detect. It is one of the NDT non-destructive testing methods in the industry.

The principle of eddy current testing is that the coil with alternating current is placed on the metal plate to be measured or outside the metal, tube to be measured (see figure). The alternating magnetic field will be generated inside and near the coil, which makes the induced alternating current in the sample appear to be eddy, which is called eddy current. Under certain conditions, the current through the coil is invariable. If the coil is close to the workpiece under test, like a ship in the water, the eddy current will be induced in the workpiece. Under the influence of the eddy current, the coil current will change. Because the size of the eddy current varies with the defect in the workpiece, the change of coil current can reflect the defect in the workpiece.

Eddy current testing equipments are our flagship products, it contains eddy current testing equipment for tube, bar and wire & eddy current testing equipment for automotive parts and aerospace. Eddy current ect testing equipment for tube, bar and wire including BKNET-999/H Copper Tube Eddy Current Flaw Detector, GSET-551steel wire eddy current testing, BKNET-101 Automatic Eddy Current Flaw Detector, Rod Tube Rotary Eddy Current Flaw Detector ET-R-15/40/65/90, BKNET-01\02 Welded Pipe Eddy Current Flaw Detector, LGET-553 Aluminum Tube Eddy Current Flaw Detector.

Eddy current testing equipment for automotive parts and aerospace including BKNFX Pre-Multi-Frequency Eddy Current Hardness Separator, BKNET Series Multi-frequency and Multi-filter Eddy Current Flaw Detector, ET-F1 Engine Cylinder Bore Eddy Current Flaw Detector, GTET-02 Cylinder Liner Eddy Current Flaw Testing Machine, Steel Ball Hardness eddy current separator GQYDFX-01, GZET-01 Roller Automatic Eddy Current Flaw Testing Machine, Roller Hardness eddy current Separator GZYDFX-01, Piston Rod Eddy Current Flaw Detector HSGET-04, HSXET-02 Piston Pin Eddy Current Tester, Precision Axis Eddy Current Flaw Detector JMZET-04, Connecting Rod Hardness eddy current Sorting Machine LGYDFX-01, Hub Bearing Eddy Current Flaw Detector LGTSET-A/B, Bolt Vortex Sorter BKNFX-11, Flame Quenching Valve Rod End Hardness Eddy Current Sorter QMYDFX-01, QTXET-01 Ball Socket Eddy Current Sorter, QTXFX-01Ball Socket Hardness Eddy Current Sorter, SCPET-04 Brake Disc Eddy Current Flaw Detector, TLET-04 Camshaft Eddy Current Flaw Detector, TLZET-99 Camshaft Eddy Current Flaw Detector, Tapered Roller Online Eddy Current Flaw Detector YZGZET-01, Ring Crack and Hardness Combination Flaw Detector TQJC-02.

Nanjing BOKENA Automation System Co., Ltd., originated from the eddy current testing laboratory of the Nanjing University of Technology. It is one of the most professional ndt testing equipment suppliers in China. We sincerely invite and welcome people from all around the world to invest and create more values together.

Eddy current testing equipment is a non-contact testing method, which mainly uses the electromagnetic field and electromagnetic induction between metals to detect. It is one of the NDT non-destructive testing methods in the industry.

The principle of eddy current testing is that the coil with alternating current is placed on the metal plate to be measured or outside the metal, tube to be measured (see figure). The alternating magnetic field will be generated inside and near the coil, which makes the induced alternating current in the sample appear to be eddy, which is called eddy current. Under certain conditions, the current through the coil is invariable. If the coil is close to the workpiece under test, like a ship in the water, the eddy current will be induced in the workpiece. Under the influence of the eddy current, the coil current will change. Because the size of the eddy current varies with the defect in the workpiece, the change of coil current can reflect the defect in the workpiece.

Eeddy current testing equipment are our flagship products, it contains eddy current testing equipment for tube, bar and wire & eddy current testing equipment for automotive parts and aerospace. Eddy current apparatus equipment for tube, bar and wire including BKNET-999/H Copper Tube Eddy Current Flaw Detector, GSET-551steel wire eddy current testing, BKNET-101 Automatic Eddy Current Flaw Detector, Rod Tube Rotary Eddy Current Flaw Detector ET-R-15/40/65/90, BKNET-01\02 Welded Pipe Eddy Current Flaw Detector, LGET-553 Aluminum Tube Eddy Current Flaw Detector.

Ndt testing equipment for automotive parts and aerospace including BKNFX Pre-Multi-Frequency Eddy Current Hardness Separator, BKNET Series Multi-frequency and Multi-filter Eddy Current Flaw Detector, ET-F1 Engine Cylinder Bore Eddy Current Flaw Detector, GTET-02 Cylinder Liner Eddy Current Flaw Testing Machine, Steel Ball Hardness eddy current separator GQYDFX-01, GZET-01 Roller Automatic Eddy Current Flaw Testing Machine, Roller Hardness eddy current Separator GZYDFX-01, Piston Rod Eddy Current Flaw Detector HSGET-04, HSXET-02 Piston Pin Eddy Current Tester, Precision Axis Eddy Current Flaw Detector JMZET-04, Connecting Rod Hardness eddy current Sorting Machine LGYDFX-01, Hub Bearing Eddy Current Flaw Detector LGTSET-A/B, Bolt Vortex Sorter BKNFX-11, Flame Quenching Valve Rod End Hardness Eddy Current Sorter QMYDFX-01, QTXET-01 Ball Socket Eddy Current Sorter, QTXFX-01Ball Socket Hardness Eddy Current Sorter, SCPET-04 Brake Disc Eddy Current Flaw Detector, TLET-04 Camshaft Eddy Current Flaw Detector, TLZET-99 Camshaft Eddy Current Flaw Detector, Tapered Roller Online Eddy Current Flaw Detector YZGZET-01, Ring Crack and Hardness Combination Flaw Detector TQJC-02.

We are one one of the leading eddy current testing equipment manufacturers, RFQ today.

Technical Characteristics of MFL101 Tank Floor MFL Scanner

Unique full modular structure, from the main body of the computer mechanism the handle of MFL101 Tank mfl tank floor scanner can be quickly folded, disassembled. It is easy to transport and access manholes. With humanized operation design, the height of armrest and adjustable angle, suitable for different operators. Precise signal conditioning circuit. The four-layer PCB with mixed power excellent performance. data word signal processing system, super computing power, advanced evaluation algorithm.

High-performance touch industrial tablet. The operation is very convenient does not require a keyboard and mouse. Unique probe design. It can pick up the magnetic flux leakage signal to overcome the unwanted signal caused by the eddy current effect. The number of physical channels is up to 32. High-performance lithium battery pack, which is at least 50% lighter than the equivalent capacity lead-acid battery Software design that can be operated efficiently.

All scan parameter settings graphical, intuitive, and easy to use, dramatically increasing the speed of operation and avoiding errors. The magnetization is quickly adjustable. By adjusting the ground clearance the magnetic pole, the magnetization of the detection target plate can be quickly changed to meet the requirements of detecting the thickness and minimize the gravity of the instrument and the bottom plate. This design allows the instrument to adapt to a wide range of floor thicknesses and reduce operator effort, increasing battery life.

Different degrees of non destructive testing machine are represented by non-color blocks. Online analysis of corrosion degree and position, position coordinates can be displayed in a table or on a scan.

MFL101 Tank Floor Scanner Performance Parameters Host:

Industrial tablet computer interface:

Chinese Working principle: Magnetic flux leakage method:

NdFeB permanent magnet Channel number: 32

Scan width: 260mm

Drive mode: DC brushless motor, worm gear reducer, The motor can be raised.

Convert manual and electric drives at any time.

Detection speed: 0 m / s~0.7m /s step-less adjustable

Detection thickness: 8-20mm Penetration coating: non-magnetic

Penetration thickness: <4mm

Sensitivity: can be set (8-12mm thick 20 % material loss of the bottom plate, 40% material loss of the 12-20mm thick bottom plate

Data storage: local hard disk storage, USB disk dumping

Real-time analysis: Yes

Offline software

Battery specification: 14V40AH

Detection picture

The system is suitable for the automatic detection of various internal and external defects of steel pipes. The principle of ultrasonic flaw detection is that after the ultrasonic wave is coupled into the steel pipe through water, the incident propagation will cause ultrasonic reflection when there is a defect in the pipe. The ultrasonic instrument will alarm the ultrasonic reflected signal after realizing the signal to realize the automatic detection of the defect; Transmission ultrasonic pipe testing equipment is currently the advanced detection equipment in China.

Wireless Transmission Pipe Ultrasonic Flaw Detector Introduction

Rotating probe configuration

1.Probe configuration on the spindle section 1

A total of 3 probe adjustment frames are placed on section 1 at 120°apart.  Each of the adjustment frames is equipped with a 2-channel combined ultrasonic line focusing longitudinal probe to detect longitudinal defects of the steel tube in a clockwise direction.

Detection of defects: Vertical and vertical defects in the steel pipe are detected in a clockwise direction.

Center frequency: 5.0MHz±10%

Coupling method: water immersion method

Quantity: 3 sets of probes, each consisting of 2 wafers. These 3 sets of probes are evenly distributed in the circumferential direction of the workpiece, spaced 120° apart, on the same section. A total of 6 channels of water immersion probes.

2.Probe configuration on the main shaft section2

A total 3 probe adjustment frames are placed on section2, separated by120°, and a 2-channel combined ultrasonic line focusing longitudinal probe is arranged on each adjustment frame to detect longitudinal defects of the steel pipe counterclockwise.

Detection of defects: counter-clockwise detection of longitudinal defects inside and outside the steel pipe.

the center frequency: 5.0MHz ± 10%

coupling method: water immersion method

Quantity: 3 sets of probes, each consisting of 2 wafers. These 2 sets of probes are evenly distributed in the circumferential direction of the workpiece, spaced 120° apart, on the same section. A total of 6 channels of water immersion probes.

Defect detection standard of Non Destructive Testing Equipment

Inspection of Longitudinal and Transverse Defects in Ultrasound Steel Pipe: GB/T5777-2008 L2(C5) Standard

Wireless Transmission Pipe Ultrasonic Flaw Detector Performance

We are one of the leading ultrasonic flaw detector manufacturers, RFQ today!

Bulk Density Tester

Automatic EDM equipment is the ideal equipment for processing artificial defects of pipe rod standards in non-destructive testing work. The flaw detector has the characteristics of simple operation, safety and reliability, high production precision, fast processing speed, and convenient carrying by ultrasonic flaw detection. It can process artificial defects on non-ferrous metals and ferrous metal tubes and bar standards. Hardness sorting can process longitudinal, transverse, and oblique rectangular groove injuries on the inner and outer surfaces of the tube and rod. The core part of the ndt equipment adopts advanced digital processing technology and system integration technology. With modern advanced digital control and servo technology, the injury process is fully automated, with high processing precision, fast speed, easy operation and performance at the international advanced level. The entire instrument is portable and easy to carry and has low requirements for the environment of steel pipe scratching.

How electronic fence works

After the pulse generator (main unit) is energized, the transmitting port sends a pulse voltage to the front fence. The time interval is about 1.5 seconds, and the pulse stays on the fence for about 0.1 second. After the loop is formed on the front fence, the pulse is returned to the host for reception. Port, this port receives the feedback pulse signal; the host also detects the resistance between the two transmitters. If the front fence is broken and the circuit is broken or shorted, the receiving port of the pulse host can not receive the pulse signal or the resistance between the two transmitters is too small, the host will issue an alarm.

Fence alarm

Through the working principle of the electronic fence, no matter what voltage working state the pulse host is in, when the fence is damaged, the receiving port can not receive the pulse signal, the pulse host will alarm; similarly, when the two electronic cables are short-circuited When the resistance is very small, the pulse master will also alarm.

We are one of the leading non destructive testing equipment manufacturers, RFQ today!