V0.62
Lab Equipment
Equipment for Lab L8: Speed of Light Measurement (Remote):
Lab Kit or RWSL
RWSL, Item with Specs and Source
LK, SS
RWSL Online Oscilloscope (dual-channel 40 MHz or faster)
RWSL
either
Laser Speed of Light Project with Laser 0.8 mW/Class II (Part IF 546)
http://i-fiberoptics.com/laser-kits-projects-detail.php?id=2270
or
Modulated or pulsed laser
2-channel Photo-detector box with signal generator (Industrial Fiber Optics)
http://i-fiberoptics.com/laser-kits-projects.php
optics base
beam-splitter
2 identical converging lenses
Magnetic mounts for beam splitter, lenses, mirrors, and photo-detectors.
cost
Supplied
under the
OPDF Grant
$650.00
US
Supplied
under the
OPDF Grant
RWSL
3 Front surface mirrors or high quality reflectors
IP controllable relay
Optional - Velmex rotary table (to select between the short and long path)
Supplied
under the
OPDF Grant
RWSL
NIC (Albert) supplied
5 to 10 m measuring tape
30 cm ruler
white card
red laser goggles
Supplied
under the
OPDF Grant
RWSL = Remote Web-based Science Laboratory
LK = Lab Kit
SS = Student Supplied
N/A Not Applicable
Beam Geometries
Reference Beam Path = beam splitter to photo-detector channel 1 port (E)
Test Beam Path = beam splitter to Mirror 1 (A) to photo-detector channel 2 port (B)
Reference Beam Path = beam splitter to photo-detector channel 1 port (E)
Test Beam Path = beam splitter to Mirror 1 (A) to Mirror 2 (B) to Mirror 3 (C) to photo-detector channel 2 port (D)
Figure 1: RWSL Speed of Light in Air Equipment Configurations