Industrial Testers and Machine Vision
The technical solution is an open flexible measurement system that has been designed using virtual instrumentation. The main benefit of its architectural structure is its adaptive nature to the different forms of testing procedures and requirements to yield standard results.
The core of the system consists of a test software application running on a personal computer, a programmable logic unit, plug-in data acquisition boards (DAQ), actuators and sensors. The system can operate as a measurement or control system. It acts as a measurement system by gathering data from the sensors and scales the data up, or down using signal-conditioning circuits. The signal-conditioning circuits are connected to a personal computer via plug-in DAQ boards. It acts as a control system by controlling test conditions and the Device Under Test (DUT) through the actuators. The actuators can be directly controlled through a PC or indirectly through a PC via a PLC.
Custom made Interface modules and signal-conditioning circuits can be designed and implemented in cases where matching analogue signal levels or nonstandard digital communication protocols are required between the test system components and/or the DUT.
The running software application is written using National Instruments software development environments, such as LabVIEW, TestStand and LabWindons/CVI. The software provides a user interface to guide the operator throughout the operating cycle of the test system. Moreover, it provides feedback on productivity and information on defected products. There are also maintenance and engineering interfaces used for configuration, troubleshooting and calibration. The test configuration data and results can be managed and stored locally or on an external database via a computer network.
Vision
system are increasingly complementing electrical tests used for functional and quality testing. Vision systems allow for fast and contactless inspection of products often times using advanced optical systems such as microscopes and computer driven motion systems for positioning the DUT. They perform optical tests by detecting visible light, infrared or ultraviolet light. Typical applications of vision systems are visual inspection of surface characteristics and shapes of the DUTs. Advanced applications include light beam measurements and thin layer measurements using a spectrograph.
ELCOM, a.s., DVI provides complete vision systems composed of a camera, a camera control, optic lenses, lighting, an image acquisition car, a motion controller and stages and a software application used for image analysis and motion.