Room setup |
Stuff needed: multimeter, Tektronix 2205
oscilloscope, audio oscillator, 9-v
battery,
wires (four 24", two 36") |
Tektronix 2205 oscilloscope |
Attach BNC-to-double-banana adapters
to CH1 and CH2 inputs
|
GW Instek GAG-810 Audio oscillator |
Setup on instructor's bench
|
Two function generators are connected to the
red & black panel connectors: sine wave on left, sawtooth on right
(Jeff will make these connections!) |
Oscilloscope on instructor's bench |
Function generator providing sine wave |
Function generator providing sawtooth wave |
Oscilloscope on instructor's bench in X-Y mode |
Place microphone and amplifiers on tables |
Place several
tuning forks on
instructors table. |
Speed of Sound Setup with GDS-1152A-U storage scope
This experiment is set up in the hallway, and needs to be assembled before
and taken down after each lab session. Jeff will handle assembly and
removal. |
Storage scope is set up in hallway outside
Bewkes 204. Note orientation of microphone.
The microphones are about 20-m apart. |
Stuff for speed of sound: Instek GDS-1152A-U storage scope,
small wood platform, laptop (running FreeWave) & power brick, USB cable,
30-m tape measure.
Place two more wood
platforms under the laptop. |
Storage Scope settings |
The FreeWave program mirrors the scope face |
Looking left towards mic on CH2
(old scope setup shown)
|
Looking right towards mic on CH1
(this is where the “clap” occurs)
|
Both microphones require an amplifier |
The left microphone (CH2) uses four 6-ft. BNC
cables connected together with 3
adapters |
Speed of Sound Setup with Instek GDS-820c storage scope
This experiment is set up in the hallway, and needs to be assembled before
and taken down after each lab session. Jeff will handle assembly and
removal. |
Storage scope with signal on CH1 and CH2
Make sure the CH1 & CH2 buttons are lit! |
Current storage scope settings:
CH1 & CH2: 500mV
Sweep: 10ms
Trigger: CH2
Edge: Single (allows scope to trigger automatically)
|
Stuff for speed of sound: Instek GDS-820c storage scope,
small wood platform, laptop (running FreeView) & power brick, USB cable,
30-m tape measure.
Place two more wood
platforms under the laptop. |
Old storage scope settings (trigger on CH1)
(0.5v, 0.2v, time base = 20 ms) |