Διαδικτυακή εφαρμογή έκδοσης πιστοποιητικών για επιστημονικά όργανα
Web based certificate issuing for scientific and laboratory equipment
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Keywords
Instuments calibrationAbstract
This thesis will deal with the process of issuing certificates in scientific instruments and more specifically in analytical balances. Firstly, the concept of calibration is introduced where the result is the certificate, in order to understand the concepts and what we are trying to solve in this thesis. The way and the procedure followed to issue this certificate is also discussed, as well as the calculations necessary for the final issue of the certificate.
The calibration process is quite important nowadays because you are concerned with the certification of measuring instruments for any product production. Calibration is the determination of the relationship between the values of a quantity as determined by a reference standard and the corresponding values obtained from the readings of the instrument or system under calibration. The determination of this relationship (and a correction to the reading of the instrument under calibration) is carried out using an appropriate measurement method and includes the calculation of the uncertainty of the measurement.
At the same time because of the ISO requirement the personnel who can extract these results must be trained in the specific methods, be certified by a governmental body (ESYD) to carry out these methods, and finally be from an external partner and not from the instrument owner or user for data security reasons. So, this application deals with two types of users the customer, who is the owner or user of the instrument, and the technician who issues the certificate.