Compatibility of CMOS Detectors in Production Line Image Testing
Kettunen, Matias (2021)
Kettunen, Matias
2021
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-202102092094
https://urn.fi/URN:NBN:fi:amk-202102092094
Tiivistelmä
The purpose of this thesis work was to prove that an image testing section of an intraoral dental machine production line could function with a CMOS detector. The pre-existing style of imaging used was a photostimulable phosphor plate and a separate reader for the plate, which was very time consuming. The detector was much quicker in the process of getting the image to the software for further analyzing. To be eligible for use in the production line the detector had to be active to obtain the radiation data at the same moment as the intraoral machine made the exposure.
To achieve this an external circuit was used, which consisted of a timer circuit and an opto-coupler. The external circuit obtained a signal from the intraoral machine when the exposure was started and modified the signal length to be fit for the i2000 circuit board that controlled the detector. The i2000 board was connected to a computer, which was running a script that allowed the tester to control the image testing procedure. At the end of the exposure the i2000 board saved the image data to the computer for further image analyzing on a computer software.
The test results were at a satisfying level for the system to be implemented into the production line in the foreseeable future. The images obtained were clear and quick to get into the software used for viewing and analyzing.
To achieve this an external circuit was used, which consisted of a timer circuit and an opto-coupler. The external circuit obtained a signal from the intraoral machine when the exposure was started and modified the signal length to be fit for the i2000 circuit board that controlled the detector. The i2000 board was connected to a computer, which was running a script that allowed the tester to control the image testing procedure. At the end of the exposure the i2000 board saved the image data to the computer for further image analyzing on a computer software.
The test results were at a satisfying level for the system to be implemented into the production line in the foreseeable future. The images obtained were clear and quick to get into the software used for viewing and analyzing.