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About SPDPHOTO
To better meet the higher standards of product quality and performance set by customers, the parent company, AMG Technology, launched the SPDPHOTO premium brand and established a subsidiary, SPD Technology, as its high-tech R&D center. The company has successively introduced a team of PhDs and master's degree holders in relevant fields, bringing together a professional team with extensive experience in design, production, and sales.
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We Can Solve Problems For These Industries
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  • Fine wires
  • Electronic communication cables
  • Flat wires
  • Medical supplies
  • Tobacco products
  • Electronics industry & Photovoltaics
  • Milling cutters & Drill bits
  • Pipes
  • Steel
  • Customization
The multi-sensor network enables simultaneous measurements, boosting accuracy and throughput
It can simultaneously monitor 48 production lines in real-time. The non-contact laser measurement causes no damage to the wire, and does not require shutdown for inspection, greatly improving production efficiency and product quality.
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Economical and efficient multi-wire inspection solution
The LSG-6000 inspection laser measurement and control system is suitable for production lines with 1 to 40 wires. The detection speed can range from 3 to 10 seconds per wire and can be adjusted according to site conditions to flexibly meet different production requirements.
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Portable quality inspection sampling solution for inspectors
The handheld measuring device enables quick, flexible measurements without spatial constraints, allowing inspectors to perform checks anytime. It is durable and offers long-lasting battery life.
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Measurement of ultra-fine wires in high-speed production
It accommodates a wide range of line speeds and ensures accurate detection of even the smallest dimensions. The minimum detectable size is 0.01mm.
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High-Speed Scanning and Comprehensive Multi-Point Measurement
Driven by a high-speed motor, the LSG-5000 series rotates 360 degrees to scan the clamped wire, performing precise measurements at over 100 points in just 2-3 seconds.
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Multi-wire production surface irregularity detection
In multi-wire production, defect detection for surface irregularities is crucial. The LN-1005 and LN-2004 detectors can be connected to a controller to form a multi-wire simultaneous detection system.
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Real-time Monitoring in Drawing Process
The dual-axis measurement system can measure the diameters in both X and Y directions. By subtracting the two, it can easily calculate the ovality of rod-shaped materials.
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Enamelled Wire Surface Defect and Pinhole Detection Solution
The high-voltage pinhole particle defect detection system combines the HV series high-voltage pinhole detection system with the LN series fine wire particle defect detector, offering a comprehensive solution for simultaneously detecting high-voltage pinholes and fine wire surface defects.
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Enamel Insulation Pinhole Detection
The HV-1000 is a high-voltage detection system designed specifically for detecting insulation defects in enamelled wires. It generates adjustable DC high voltages ranging from 200V to 3000V.
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High-speed detection of vibrating wire materials.
With a sampling frequency of up to 5kHz on a single axis, the system can accurately capture and identify the diameter of line materials even when they are vibrating.
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Simultaneous Surface Defect and Outer Diameter Measurement
The LCG series, with its exceptional 10K samples per second detection frequency, allows a single device to perform both outer diameter measurement and surface defect detection, including raised or recessed particle defects. This reduces both equipment and maintenance costs.
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Even with wire vibration, accurate measurement is ensured
Thanks to a sampling frequency of up to 10KHz, the LCG series can precisely measure the outer diameter of wires during high-speed production.
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Measurement of transparent materials like optical fibers
It can measure the outer diameter of transparent materials such as optical fibers.
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Modular Diameter Measurement
The LSG series multifunctional diameter gauge supports modular collaboration, enabling multiple measurement modules to work together and sample at different positions simultaneously.
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Surface Defect Detection
Using a high-speed three-axis detection mode, the system significantly broadens the coverage of the object being measured, making the detection process more detailed, precise, and comprehensive. This improves both the quality and effectiveness of the inspection.
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Wavecrest and Valley Measurement of Corrugated Tubes
Ultra-high-speed sampling for precise capture of peak and valley values.
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Flat Wire-Specific Dimension Measurement
The LSG-1020XY flat wire diameter gauge features an independently designed laser scanning system, enabling high-precision, non-contact online or offline measurement. Its advanced edge detection technology excels in inspecting flat products, ensuring both accuracy and efficiency in measurements.
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Stable and efficient guide wheel system
The LSG-7000 inspection system is made from durable aluminum alloy, offering high integrity and robustness. It is equipped with custom guide wheel sets and a rotating clamping device tailored to the customer's wire dimensions.
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Flat Wire Surface Defect Detection System
With a customized ultra-high sampling frequency, this system detects surface defects like bumps and particles on flat wires. The tailored software triggers alarm signals and records defect location, size, and type.
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Swinging Flat Wire Measurement
The LSG-7000 swinging flat wire gauge performs reciprocal swinging within a specific angle around the target material. The laser sensors on the X and Y axes capture the minimum width in the vertical direction and the minimum thickness in the horizontal direction, ensuring accurate measurement even with wire movement.
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Dual-Axis Measurement of Roundness, Width, and Thickness
By measuring the diameter in two directions, ovality (ellipticity) of rod-shaped materials can be easily calculated.
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Flat Wire Surface Defect Detection
Custom high-speed sampling frequency accurately identifies the location and size of surface convex and concave defects on flat wires. Simultaneously measures width and thickness while detecting surface particle defects.
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Product appearance inspection
With precise edge recognition technology, it can identify defective products.
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Accurate Detection of Transparent Objects
Using non-contact laser measurement principles, this system is ideal for measuring transparent objects, fragile items, and soft materials. It accurately detects the outer diameter, and by rotating the object, it can also measure the circumference and ovality.
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Filter Tip Detection for Tobacco Products
Non-contact measurement using laser measurement principles, suitable for measuring soft filter tips. Custom flexible fixtures prevent deformation of the measured object. Accurately detects outer diameter, and by rotating the object, measures circumference and ovality.
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Pin Size and Gap Measurement
Efficient pin pitch positioning and detection help improve the manufacturing process, assist in screening, and increase the yield rate.
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Wafer roundness measurement
Detect the wafer edge shape and measure roundness through edge value changes.
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Roll Gap Measurement
Real-time accurate roll gap width measurement improves rolling precision and assists in automated rolling control.
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Fast Measurement of Battery Outer Diameter
Compact Size, Large Measurement Range
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Solar Panel Width Measurement
Measures the width of ultra-wide flat strips, monitors the edge position of large-size films or flat materials, and provides continuous width data measurement. High precision and fast response.
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Runout Detection of End Mills and Drills
Measures the outer diameter of drill bits and monitors runout during workpiece rotation, ensuring dynamic precision. Optimized measurement for specific workpiece types to enhance accuracy.
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Combined Measurement Solution for Large Pipes
In the production of large PVC pipes, it's crucial to control both the diameter and ovality. A combined measurement solution can be used to ensure precise and consistent measurement of these parameters during the production process.
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Dual-Axis Detection for Pipe Measurement
By measuring the diameters in two directions, this method easily calculates the ovality of cylindrical objects. It enables real-time, online measurement of rod-shaped materials, providing accurate and reliable data.
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Measurement of Spacing and Dimensions of Multiple Workpieces
Supports large measurement areas for measuring distances between pins or workpieces, as well as the dimensions of individual pins or components. Suitable for special workpieces and electronic components.
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Width Measurement of Ultra-Wide Steel Plates
Continuous width measurement and edge position monitoring for large-size films or flat materials.
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Film Thickness Control
By continuously measuring the film's thickness during production and feeding the data back to the control system, the roller gap can be automatically adjusted. This reduces labor costs, minimizes downtime, eliminates human errors, and improves both production efficiency and product quality.
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Camshaft Precision Measurement
For the complex and critical measurement requirements of camshafts, the LSG series multifunctional diameter gauges offer segmented positioning detection, continuous data output, and anomaly alerts to ensure high-precision edge detection and quick response.
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Ultra-Wide Workpiece Measurement
For large workpieces, the LSG series multifunctional diameter gauges allow coordinated sampling between modules, enabling multiple measurement modules to work together and sample at different positions simultaneously.
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High-Temperature Remote Measurement
The LSG series multifunctional diameter gauges provide a remote installation solution to meet the measurement needs of high-temperature workpieces, ensuring stable, safe, and high-precision measurements even in high-temperature environments.
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Main Products
Non-contact Dimensional Measurement Surface Defect Detection for Concave and Convex Particles Automated Measurement and Control System
Laser Scanning Diameter Gauge
Laser Diffraction Diameter Gauge
CCD Imaging Diameter Gauge
Fine Wire Laser Diameter Gauge
In the production of fine wires, to ensure the consistency of the wires and the accuracy of the wire diameter, our diameter gauges provide a range of targeted solutions.
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Wire and Cable Laser Diameter Gauge
Using our LSG series diameter gauges, real-time monitoring of cable diameter ensures consistent quality, improves production efficiency, reduces defects, and allows for quick issue resolution, ultimately lowering costs and boosting customer satisfaction.
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Handheld Laser Diameter Gauge
The LSP-1005 allows quality inspectors to perform non-contact measurements during production, improving efficiency and ensuring continuous operation without delays.
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Cable and Tube Laser Diameter Gauge
Wide measurement range.
Single/dual-axis modes for precise measurements and ovality detection.
High reliability and stability ensure accurate results.
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Multi-functional Laser Diameter Gauge
Modular design: Compact and versatile, suitable for more applications.
Multiple units combination: Capable of measuring runout, ovality, width, thickness, and other data.
Multi-functional display: Allows remote display of measurement results.
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Flat Wire Laser Diameter Gauge
With its unique structural design and edge detection algorithm, it excels in the inspection of flat wire products. The non-contact measurement ensures no surface damage, while real-time monitoring of width and thickness ensures product quality.
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Fine Wire Laser Diffraction Diameter Gauge
Using the Fraunhofer diffraction principle, it achieves precise outer diameter measurement of ultra-fine wires. This method ensures high accuracy even for extremely small diameter wires, making it ideal for micro-wires, and other fine materials.
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LIG Series Laser Diffraction Diameter Gauge
The LIG series features a compact design with a wide measurement range, using a multi-spectral parallel laser light source to enhance accuracy, reduce ambient light interference, and ensure stable, precise measurements in complex industrial environments.
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LCG Series High-Speed Outer Diameter Defect Detection Gauge
Featuring a high-speed CCD telecentric imaging optical system with an ultra-high sampling frequency of up to 10kHz, and multi-axis data sampling for more comprehensive data collection.
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CCD Telecentric Imaging Fine Wire Diameter Gauge
Featuring a high-speed CCD telecentric imaging optical system with ultra-high sampling frequency, ideal for diameter measurement of micro wires.
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Dedicated Detection for Concave and Convex Defects
Surface Defect Detection System for Concave and Convex Irregularities
LN Series Concave and Convex Particle Defect Detector
The LN series uses advanced optoelectronics and high-speed signal processing for non-contact micron-level defect detection, ideal for high-speed production lines, detecting defects like bulges, necking, blisters, scratches, and coating delamination.
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LN Series Fine Wire Particle Defect Detection System
The LN-2000 and LN-3000 systems support up to 16 detection heads per host, enabling simultaneous monitoring of 16 production lines.
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HV Series High-Voltage Pinhole Detection for Enameled Wires
HV-1000 is a high-voltage testing system for detecting insulation defects in enameled wires, offering adjustable DC voltage from 200V to 3000V to suit various wire specifications.
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LNV Series High-Voltage Pinhole and Particle Defect Detection System
An advanced solution integrating high-voltage pinhole and fine wire particle defect detection.
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Micron Wire Ovality Measurement System
Multi-head Integrated Laser Measurement and Control System
Automated Inspection Laser Measurement and Control System
Flat Wire Laser Measurement and Control System
Workpiece Runout Detection System
LSG Series Ovality Measurement System
The LSG-5000 series performs 360° scanning with over 100 measurement points in 2–3 seconds, delivering real-time data on average value, ovality, max, and min dimensions.
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LSG Series Multi-Head Integrated Laser Measurement and Control System
Proven Multi-Wire Measurement Solution:The LSG-3000 system supports up to 48 measurement heads, leveraging high-speed DSP processing for precise and reliable outer diameter detection in multi-wire production lines.
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LSG Automated Inspection Laser Measurement and Control System
The LSG-6000 system is ideal for measuring wire diameters in parallel production lines (1-40 lines). It offers flexible detection speeds of 3-10 seconds per wire, adjustable to production needs.
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LSG Series Flat Wire Laser Measurement and Control System
Dual laser heads with fixtures ensure non-contact, high-precision measurements, with advanced edge detection and laser scanning for accurate results without surface damage, ideal for high-precision applications.
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LSG Series Runout Measurement and Control System
Designed for precise, non-contact measurement of diameter, roundness, and runout for bars, tubes, and cutting tools, eliminating surface damage and instrument wear from contact methods.
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ALL PRODUCTS
Latest News
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2024.09.28
The 11th China International Cable and Wire Exhibition 2024 Concludes Successfully
The 11th China International C...
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SPDPHOTO Tech
Home > Products > Non-contact Dimensional Measurement > CCD Imaging Diameter Gauge > CCD Telecentric Imaging Fine Wire Diameter Gauge
CCD Telecentric Imaging Fine Wire Diameter Gauge
Suitable for ultra-fine wire, metal micro-drawn wire, optical fiber, nylon thread, diamond cutting wire, and other fine wires.
Video
Principle Principle




Transmitter Side: The high-intensity green LED emits high-power green light, which is collimated and parallelized by the collimating lens. When the green light hits the measured object, it casts a shadow.
Receiver Side: The telecentric optical system projects the shadow of the measured object onto the CCD image sensor. In the high-speed linear CCD, a precise image of the measured object is formed. The image is then processed and calculated by the digital edge detection processor to obtain accurate measurement dimensions.


LCG-1006S
CCD imaging for precise outer diameter measurement. Compact, suitable for narrow environments.





Applicable diameter range

0.04mm - 6mm

Accuracy ±0.5μm
Repeatability±0.1μm
Measurement Modes
Outer diameter measurement
Outer diameter measurement
Edge position detection
Edge position detection
Technical Features
Uses a CCD telecentric imaging optical system.

LCG series adopts a CCD telecentric optical imaging system for faster sampling of the target object's outer profile, with a sampling frequency of up to 5kHz. High-speed sampling and a powerful DSP processor ensure stable data processing. This high sampling rate and response speed guarantee measurement accuracy and stability, providing stable results in a very short time. It also analyzes outer diameter variations and detects surface particle defects.

Main applications: ultra-fine wires, metal drawn wires, diamond wires, tungsten wires, optical fibers, nylon wires, enameled wires, etc.
































High-speed CCD telecentric imaging optical system









  1. High-intensity green LED emits high-power green light.
  2. The collimator lens makes the light parallel and collimated for emission.
  3. The emitted light strikes the object, causing a shadow.
  4. The telecentric optical system projects the shadow onto the CCD image sensor.
  5. The accurate shadow image of the object is formed on the high-speed linear CCD.
  6. The digital edge detection processor processes and calculates the measurements.


Detailed Parameters
Models LCG-1006S
Number of axes 1axis
Minimum Resolution 0.0001mm
Measuring range 0.04-6mm
Accuracy ±0.5μm±0.01%*D
Repeatability ±0.1μm±0.005%*D
sampling frequency 2400Hz
Alarm output 24V，1A(contact load)
Communication Dual-channel RS-485/MODBUS protocol, TCP/IP, WIFI
PI control Optional
Power supply DC 24V， 2A
Display method Remote digital display
transparent materials Supports
Ambient Temperature 0 to +50℃(32 to 122°F)
Ambient Humidity 35% to 85% RH, No condensation
Dimensions 232x74x36(mm)