The difference between calibration and verification is as follows:
Validation and calibration are two key concepts applied to measuring instruments, equipment, and more. Although the two terms may seem similar, they represent two different processes that are used to ensure the accuracy and reliability of measurements, respectively. In this article, we will explain in detail the difference between calibration and verification and understand how they are used to validate the performance of measuring devices.
I. Definition of calibration and verification
Validation is the process of checking that a measurement device meets the expected precision and accuracy by referring to at least one known measurement standard. The process involves comparing the measurements of the instrument or device being calibrated with a known standard to check aspects such as accuracy, precision, linearity, sensitivity and stability, and outputting a conclusion of the comparison.
Calibration is an ongoing activity that needs to be carried out according to the rules, and the re-performance cycles required will vary depending on your needs and industry requirements.
Calibration is the adoption of a method or technique to adjust test equipment to the standard of specifications designed by the factory, thus ensuring that it provides accurate and reliable measurements. In this case, calibration is usually carried out when an instrument or piece of equipment deviates.
It involves comparing the calibrated state of the instruments or equipment with their new state or with predetermined specifications and standards, and adjusting the equipment to more closely match the specifications and standards. After calibration is completed, the equipment can use a document called a "calibration certificate" to ensure that it has been successfully calibrated and to provide the precision accuracy of the equipment.
The Difference Between Calibration and Verification
Verification and calibration are both related to the accuracy and reliability of measurement equipment, but they have different emphases. Calibration is concerned with comparing known standards of accuracy to confirm the conformity of the measuring device, while calibration aims to adjust the measuring device to its intended standard value.
1. Calibration is the process of checking whether an instrument or device that has been calibrated meets product-specific requirements. Calibration, on the other hand, is the process of adjusting an instrument or device to meet manufacturing specifications or other specific requirements.
2, calibration is designed to confirm that the accuracy, precision, linearity, sensitivity and stability of the measuring equipment to meet specific standards, while calibration is concerned with enabling the testing equipment to provide accurate and reliable measurement results.
3. Calibration requires the use of well-functioning instruments or standards for comparison, and the execution of calibration in accordance with the requirements and cycles of the equipment. However, calibration can also be used to adjust a failing instrument or equipment to restore it to its original condition and 100% specifications.
Checking and calibration are two different but interrelated processes to ensure the precision and accuracy of measurement equipment. Both verification and calibration are critical, essential for accurate measurements and are mandatory under the ISO 9001 standard. They both need to be carried out by specialized technicians