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Last
update: 10. December 2007
A computer equipped with the DAQ system and accomplished with sensors, actuators and laboratory kits very comprehensive instrument in science and technology laboratory. Some of these supplements were developed and produced within the project while others were developed only as prototypes. In most cases, complete “do it yourself” instructions are available.
Data acquisition (DAQ) systems can directly sample only voltage through digital or analogue inputs. However, analogue or digital sensors convert various physical quantities into appropriate voltage signals. The computer can therefore sample, display, analyse and save data about electric current, temperature, light intensity, pH of the solution, pressure, force, distance, etc.
Actuators are connected to the DAQ output signals. In general, the DAQ output signals have very limited output power which is often not sufficient to drive motors, heaters, light sources, etc. Equipped with actuator, the computer can influence conditions of the controlled system, Most often, output signals through actuators are combined with input signals from the sensors.
Some laboratory exercises rely on a number of external components or more complex mechanisms with motors, sensors, etc. For some exercises adequate kits were proposed.
Sensors:
Light intensity eProSens-Lgt1
Temperature eProSens-Tmp1
Microphone with amplifier eProSens-Mic1
Using Vernier’s sensors
Actuators
H-bridge controler eProAct-Hbr1
Kits
Mobile robot eProKit-MR1
Collection of basic electronic components eProKit-Ele1
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