The online projection measuring instrument overcomes the limitations of traditional image measuring instruments in terms of speed, real-time capability, operational convenience, and functional scalability through high-speed measurement, intelligent operation, multi-dimensional inspection, and production line integration capabilities. It has become the core quality control equipment in the era of smart manufacturing.


I. Measurement Speed and Real-Time Capability: The Core Differentiator of Full Inspection on Production Lines
1. Telecentric Measurement System


Speed Advantage: Leveraging dual telecentric measurement heads, green LED parallel light, and high-speed image processing technology, single measurement time is reduced to 35ms. This enables real-time inspection of hundreds of parts per minute, meeting the requirements for 100% inspection on production lines.
Real-Time Feedback: Measurement results are instantly displayed and transmitted to the control system. This automatically triggers alarms or sorting devices, achieving a closed-loop “measure-decide-execute” process. This prevents defective batches from entering subsequent processes.
2. Traditional Image Measuring Instrument


Speed Limitations: Constrained by mechanical motion, image acquisition, and software processing workflows, single measurement cycles typically take 1–5 seconds, making it difficult to meet the demands of high-speed production lines.
Spot-Check Mode: Primarily used in laboratories or offline inspections, requiring manual sampling and clamping. This approach cannot cover all products, posing a risk of missed inspections.
Data Latency: Measurement results require manual recording or export, preventing real-time intervention in the production process.
II. Operational Convenience: The Leap from Complexity to Intelligence
1. Telecentric Measurement System


Place and Measure: Automatically identifies workpiece features via preset programs or AI algorithms, eliminating manual adjustments to light sources, lenses, or coordinate systems.
Batch Duplication: Supports duplicating measurement tools in any quantity, orientation, or spacing to streamline setup for complex workpieces.
Automatic Offset Correction: Ensures measurement accuracy through image matching algorithms even when workpiece positioning shifts.
2. Traditional Image Measuring Instrument


Manual operation dependency: Requires manual adjustment of light source brightness, lens magnification, and workpiece positioning, demanding significant operator experience.
Complex coordinate system setup: Requires manually aligning the system or importing CAD models to establish the coordinate system, which is time-consuming and prone to errors.
Limited functionality expansion: While supporting contact probes or laser probes, additional calibration is required, increasing operational complexity.
III. Functional Scalability: From Single Measurement to Multi-Parameter Detection
1. Telecentric Measurement System
Multi-functional inspection capabilities: Beyond dimensional measurement, it supports standard contour comparison, defect distance measurement, and more.
AI-powered: Utilizes deep learning algorithms for automatic classification and statistical analysis, providing data support for quality control.
Integrated design: Seamlessly interfaces with automated production lines, robots, or MES systems to achieve full-process automation from “measurement-analysis-feedback.”
2. Traditional Image Measuring Instrument
Relatively limited functionality: Primarily focused on dimensional measurement, requiring external software or manual calculations for geometric tolerance analysis.
Restricted data output: While supporting formats like Excel and Word, it lacks real-time data analysis and visualization capabilities.
High expansion costs: Adding contact probes or laser probes necessitates additional investment and requires system recalibration.
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