LLS Pre-Lab
INCLUDE THIS SHEET AS THE FIRST PAGE OF YOUR REPORT.
Student's Name: ______________________________________________________________
Partner's Name: ______________________________________________________________
Before the 1st Day of Lab
WATCH THE VIDEO FOR THIS EXPERIMENT.
Pre-lab Questions and Sign Off Sheet
It is your responsibility to discuss this lab with an instructor before your first day of your scheduled lab period. This signed sheet must be included as the first page of your report. Without it you will lose grade points. You should be prepared to discuss at least the following questions before you begin doing the lab:
- What is the purpose of having the SR760 FFT Spectrum Analyzer? What mathematical operation does it perform on an input signal? Give several examples of what goes in and what comes out.
- Why don’t we just put a filter in front of our photodiode which only passes light at the frequency given off by the LED (e.g. 635 nm)?
- Explain how chopping the steady-state signal from the LED helps you to recover the signal from the LED.
Staff Signature ______________________________________________ Date ____________
Completed on before the first day of lab? (circle) Yes / No
Mid-lab Questions and Sign Off Sheet
- Before beginning Experiment X, you should have produced a plot of the Johnson noise signal using the measurements obtained in Experiment IX.
Staff Signature ______________________________________________ Date ____________
Completed before proceeding with Experiment X? (circle) Yes / No