Prior to the start of the course in September 2000, we are hoping to add written up examples of these activities to our library of science experiments. If you are interested in performing and writing up one or more of these activities, please e-mail experiments@picotech.com in return for writing up a suitable experiment we will donate a FREE DrDAQ data logger to your school / college.
| Activity |
Name |
Notes |
| 70D |
The speed of a pulse on coax cable
| Similar also to the speed of light experiment in our library of science experiments |
| 100E |
Using a wide range of kinds of sensor |
This is also ideally suited to the DrDAQ data logger |
| 260E |
Monitoring rapid changes in intensity |
This is better done with a scope than a data logger as the signals from the TV remote control are a bit too fast for DrDAQ. |
| 300E |
Using temperature sensors |
Although the experiment suggests the use of a oscilloscope (as some data loggers are too slow) the DrDAQ data logger will be ideally suitable for this application |
| 310E |
Monitoring vibration |
The bimorph element can be connected directly to the ADC200/50. As well as the scope waveform, have a look with the spectrum analyser, by using the peak detect option and sweeping through the frequencies, all the resonant frequencies will be displayed on a single graph. |
| 320E |
The oscillations of a hacksaw blade |
For more info on connecting to strain guages, see our how to measure pages. |
| Activity |
Name |
Notes |
| 20D |
What do digital signals look like? |
We found using a photo diode designed for IR use a bit easier as it is less sensitive to ambient light. Interesting to speculate of the power of the pulse of light - how far away does a remote control work - compare say to a camera flashlight. |
| 30D |
Data transfer on an optical fibre |
Don't forget to look at the spectrum view as well as the scope view. |
| 40D |
Sampling vibrations on a string |
If you also have a DrDAQ an extension would be to use the built in microphone to display the spectrum of a string instrument. |
| 60D |
Noise: A problem and a solution |
Again the spectrum analyser view is a powerful tool here. |
| 180S |
Spectrum analysis: Going further |
Required for the optional extension |
| 80E |
Looking at signal conversion |
The ADC200 is 8 bit (256 levels) |
| 170E |
Spectrum analysis: Simple signals |
Use PicoScope to display both oscilloscope & spectrum views of the same signals. |
| 200E |
Hearing impairment: Using an electronic filter |
Although it suggests a scope - the spectrum option may be more useful here. More information on audio spectrum analysis can be found here. |