What's correction compensation

The Z-axis probe of a vision measuring machine is a component used for measuring the height of a workpiece or conducting depth measurements. It typically consists of a probe tip and associated motion mechanisms. However, occasional errors may occur during operation. In such cases, we need to employ calibration compensation. Calibration compensation is a common method of error correction used to improve measurement accuracy and reduce system errors in mechanical equipment. Specifically, calibration compensation typically includes the following aspects:
correction compensation
Straightness calibration: Calibrating the straight motion axis of the equipment to ensure its straightness meets the requirements during motion.
Parallelism calibration: Adjusting the parallel axes of the equipment to ensure consistency when parallel to a reference surface.
Perpendicularity calibration: Calibrating the vertical axis of the equipment to ensure it is perpendicular to the reference surface.
Rotation calibration: Calibrating the rotation axis of the equipment to ensure accurate and consistent rotation angles.
Motion deviation calibration: Calibrating the motion axis deviation of the equipment to improve position and velocity control accuracy.
Length measurement error calibration: Calibrating the length measurement system of the equipment to eliminate errors in length measurement.
Temperature compensation: Compensating for temperature variations by calibrating the equipment according to changes in environmental temperature to reduce the influence of thermal expansion on measurement results.
Wear compensation: Calibrating and compensating key components of the equipment based on its service life and wear conditions to maintain performance and accuracy.
Rigidity error calibration: Calibrating the structural rigidity of the equipment to reduce the influence of rigidity deformation on measurement results.
Zero offset calibration: Calibrating the zero point of the equipment to ensure the accuracy of the measurement system's zero point.
These calibration compensation items may vary depending on the specific equipment and application, and different devices may have different calibration items. Our company's vision measuring machine has a total of 21 calibration items. By implementing these calibration compensations, measurement accuracy can be improved, errors reduced, and measurement results can be ensured to be accurate and reliable.
The implementation of calibration compensation typically involves the following steps:

Determine the calibration items: Determine the specific items that need to be calibrated based on the characteristics of the equipment and measurement requirements. This can be done by referring to the equipment manufacturer's guidelines, technical documents, or relevant professional knowledge.

Collect measurement data: Collect measurement data related to the calibration items using appropriate measurement tools and methods. Standard reference objects or measurement standards can be used for comparison and calibration.

Data analysis: Analyze the collected measurement data to identify the equipment's error patterns and trends. Statistical analysis, data processing software, or specialized measurement analysis tools can be used to accomplish this.

Develop calibration algorithms: Develop appropriate calibration algorithms and compensation models based on the analysis results. These algorithms can be used to calibrate the control system of the equipment to real-time compensation for errors during the measurement process.

Adjust calibration parameters: Adjust the calibration parameters of the equipment according to the calibration algorithms. This may involve adjusting the parameters of the equipment's controller, sensors, motion system, or other related components.

Calibration validation: Validate and test the calibrated and compensated equipment to ensure the effectiveness and accuracy of the calibration. This can be done by comparing the measurement results before and after calibration, using reference standards for validation, or employing other appropriate testing methods.

Regular maintenance and calibration: Calibration compensation is an ongoing process that requires regular maintenance and calibration. The equipment's service life, environmental conditions, and other factors can all lead to changes in calibration effectiveness. Therefore, regular maintenance and calibration are essential.

It should be noted that the specific implementation steps of calibration compensation may vary depending on the equipment type, industry requirements, and specific applications. Before implementing calibration compensation, it is recommended to refer to the equipment manufacturer's guidelines and seek advice from professionals to ensure proper calibration operations and obtain accurate measurement results.
If you require related technical services, our company ARCiNTU specializes in industrial measurement and intelligent manufacturing. We have extensive experience in calibration compensation technology. Combining the advantages of foreign vision equipment, we have developed a series of efficient and high-precision vision measuring devices. Our product technology benefits from the guidance of Professor Zhang Zhengtao's team from the Institute of Automation, Chinese Academy of Sciences, and relies on the strong hardware design and software development capabilities of the national research team. If you have any related needs, ARCiNTU can provide you with suitable vision measuring equipment/probe products. We sincerely invite you to contact us for further details or to answer any questions you may have.

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