Shuttle Box Design
Thapa, Anil (2018)
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-201805158122
https://urn.fi/URN:NBN:fi:amk-201805158122
Tiivistelmä
The main objective of this study was to design a shuttle box for inhibition testing on rodents, such that as a mouse enters the box, it should experience a different intensity of current shocks for a different period of time, both being controllable by the user. The shuttle box needs to be designed with the conductive floor so that as the mouse enters the box it feels the electric shocks as generated by current sources and controlled by switching circuit.
In this project, AC and DC current sources are designed to provide a constant current to the mouse whereas, national instrument USB 6008 DAQ is implemented with Labview to create PWM signal for the switching of the current and controlling of current intensity. Similarly, the front panel in LabVIEW is designed in such a way that it serves as a user interface so that user can easily control the duty cycle of the pulse, pulse duration and total run time of the whole system.
The shuttle box was tested with different values of resistors as well as with human hand to ensure the effectiveness of the current source and the operation of PWM signal in LabVIEW. The simulated and measured results were supporting each other to a great extent. Throughout the operation, the actual intensity of current as experienced by the mouse and its duration was monitored in LabVIEW front panel that ensured the safety of mouse and the effectiveness of the experiment.
In this project, AC and DC current sources are designed to provide a constant current to the mouse whereas, national instrument USB 6008 DAQ is implemented with Labview to create PWM signal for the switching of the current and controlling of current intensity. Similarly, the front panel in LabVIEW is designed in such a way that it serves as a user interface so that user can easily control the duty cycle of the pulse, pulse duration and total run time of the whole system.
The shuttle box was tested with different values of resistors as well as with human hand to ensure the effectiveness of the current source and the operation of PWM signal in LabVIEW. The simulated and measured results were supporting each other to a great extent. Throughout the operation, the actual intensity of current as experienced by the mouse and its duration was monitored in LabVIEW front panel that ensured the safety of mouse and the effectiveness of the experiment.