Hall Effect Sensors
University: University of California, Santa Barbara In this laboratory, students learn how to use a Hall Effect sensor to detect the presence of a magnetic field due to a permanent magnet. Then, in a simulation of an attendance counter at a turnstile, they write a NI LabVIEW program to count the number of times that a magnet is moved past the Hall sensor. Finally, they write a program to compute and display the total (cumulative) duration of low pulses. As an extra credit exercise, students may write a program to count and display the number of long low pulses, that is, low pulses that are at least 200 ms in duration. |
