In this process a noise will develop that adds to the signal. The digitized steps can be shown as grey values in digital images. With the help of a capacitor, this charge is converted into a voltage, which is amplified before an ADC digitizes it. The photon transfer creates an electrical charge in the image sensor. Light, in the form of photons, shines on the image sensor. The work for the diploma thesis employed the EMVA 1288 standard to ensure a later comparability of the results.Īs an introduction to the standard, this section will briefly explain the functionality of a camera. Within this standard, one method is the "photon transfer method" (PTM). The standard provides a defined test frame as well as the defined presentation of the resulting data. Embedded in this procedure is the camera standard EMVA 1288.ĮMVA 1288, hosted by the European Machine Vision Association, was originally developed to enable the users of industrial and scientific cameras to compare the technical data of the camera data sheets provided by the camera vendors. At Omnitron, within the framework of a diploma thesis, a procedure was introduced for the qualification of the camera sensitivity taking into account the influence of noise. Their portfolio encloses, among others, camera-based systems such as vision sensors and optical identification systems, which are being developed at daughter company Omnitron located in Griesheim, Germany. Pepperl+Fuchs is a worldwide operating manufacturer of sensors and components for process and automation technology.