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Welkom op de wiki van labcontrol! Deze pagina heeft tot doel het startpunt te zijn van alle documentatie op deze wiki.
Labcontrol is:
- Python: het is een verzameling van handige klassen.
- Remote: alle lab apparatuur in een (elektronica) lab kan op afstand bestuurd worden met behulp van je computer en
- Control: Niet de besturing van een afzonderlijk meetapparaat op de werkbank, maar juist de wens om alle beschikbare apparatuur samen te laten werken, is de reden voor de ontwikkeling van Labcontrol. Met die gecontroleerde samenwerking van jouw computer kun 'recepten' maken zodat je automatisch een volledige karakterisatie van DUT (Device Under Test) kan uitvoeren. Denk dus aan amplitude of fase responsie of andere vormen van overdrachtsfuncties.
In onderstaande tekening zie je schematische weergave van een elektronische werkbank in het E-lab op Hogeschool Windesheim te Zwolle.
Labcontrol is a system in development for circumventing some of today’s ‘educational trends ’ such as insufficient reading skills and having difficulties to memorize some important rules of thumbs. These problems prevent students from doing their labs the right way, yielding to incorrect measurements and there confusing results, preventing them to learn effectively. Labcontrol: a combination of “electronic laboratory” and “digital control”. It aims to control test and measurement device to be found at a lab bench of an educational institute and trying help the student during its lab, by forcing correct order of each step of the measurement, by assessing the results of each step and to check the final results and conclusions drawn by the student. VISA is the standard for configuring, programming, and troubleshooting instrumentation systems. It's owned and maintained by National Instrument.
The desire to control equipment remotely goes back to the very early days of computing. Hewlett Packard (HP), not only creator of early computing systems, also designed and produced very nice measurement equipment those days, which HP wanted to interconnect by a standard bus system. By the late 1960s, HP had gained and enormous experience in connecting equipment via bus systems. This resulted in het design of the so called ‘Hewlett-Packard Interface Bus or HP-IB’ during the early 1970s, which led to the IEEE48.1 standard in 1975, for defining he hardware and the IEEE48.2 in 1987, for the protocol and messages specification. In 1990 the successor of IEEE48.2 was founded: the Standard Commands for Programmable Instruments (SCPI), which defined not only classes of controllable instruments but also gave a standard syntax and commands for all programmable test and measurement devices. Although originally created for the IEEE-488.1 (GPIB) bus, SCPI nowadays works seamlessly with all kinds of communication protocols such as RS-232, RS-422, Ethernet and USB. [1].
Oscilloscoopkunde: zie https://www.tek.com/en/documents/primer/oscilloscope-systems-and-controls