What are the disadvantages and advantages of the application of optical calibration board in measurement and detection

advantage

High precision calibration:

With its high precision pattern and size design, the optical calibration board provides an accurate calibration reference for optical measuring equipment.

By comparing with the calibration board, the parameters of the measuring equipment, such as focal length, pixel size and lens distortion, can be accurately calculated, so as to ensure the stability and consistency of the measurement results.

Improve measurement accuracy:

In the field of image measurement, calibration board is a key tool to ensure measurement accuracy.

By comparing the measured object with the calibration board, the size, shape and other parameters of the measured object can be calculated accurately, and the measurement accuracy can be improved.

Shorten measurement time:

Using the calibration board for calibration can greatly reduce the measurement time and improve the work efficiency.

Especially in scenarios where lenses or measuring equipment need to be changed frequently, the calibration board can quickly help the equipment return to an accurate state and reduce calibration time.

Wide applicability:

The optical calibration board is suitable for a variety of optical measuring equipment and systems, such as cameras, image measuring instruments, etc.

Its various specifications can meet the needs of different application scenarios, such as scientific research, industrial manufacturing, machine vision and image processing.

Easy to integrate and operate:

The detection algorithms of modern calibration boards such as CharuCo calibration boards have been integrated into mainstream software libraries, such as contrib library of OpenCV.

This makes the calibration process easier and reduces the difficulty of operation.

malpractice

Higher cost:

High-precision optical calibration plates are usually more expensive, which increases the cost of measurement and inspection.

For some organizations or enterprises with limited budgets, the use of calibration boards may be limited due to cost issues.

There are certain requirements for the use environment:

The optical calibration board needs to maintain certain environmental conditions, such as light and temperature, when it is used.

If the environmental conditions do not meet the requirements, the accuracy of the calibration results may be affected.

Requires professional personnel to operate:

Although the calibration board is relatively easy to operate, it still requires a certain amount of expertise and experience.

If the operator does not have the appropriate skills, it may lead to inaccurate calibration results or damage to the equipment.

Limited by physical size:

The physical size of the calibration board will limit its application scenarios.

For some large or complex measurement systems, a larger or more complex calibration board may be required to meet the demand.

In summary, the optical calibration board has the advantages of high-precision calibration, improved measurement accuracy, shortened measurement time, wide applicability and easy integration and operation in measurement and inspection. However, its high cost, certain requirements for the use of the environment, the need for professional operation and physical size restrictions and other drawbacks also need to be paid attention to when using. In practical applications, the appropriate calibration board should be selected according to the specific needs and conditions, and operated in strict accordance with the operating procedures to ensure the accuracy and reliability of measurement testing.