Portable Oscilloscope
2008
 |
 TEKTRONIX T922 15MHZ 2 DUAL CHANNEL PORTABLE OSCILLOSCOPE 55017 $9.00 (1 Bid) Time Remaining: 8h 27m |
Portable Oscilloscope
The Definition of USB Oscilloscope
Oscilloscope is now coming in many types. They are portable and computerized so they allow you to detect the signals right from your computer. A USB oscilloscope runs from the USB drive of a computer. Every computer must have this drive so you do not need to worry about that. The need of cool, affordable, and portable oscilloscope is always growing. That is why this tool's popularity is always growing among us.
Usually people detect the signals using the old type of oscilloscope. But now they are looking for the modern one that allows them to detect and analyze signals right form their computers. This new discovery is allows the users to detect signals easily and it is very portable. Users who frequently go for a field trip can use this tool. Students and people who need oscilloscope for educational purpose can use this too. It is usually has cheaper price than any other type.
This device can detect electrical signals, frequencies, voltages and values of signals, and how much a signal is alternating current. This device can be used by everyone from electricians, physicist, students, doctors, and common people. You can connect it with desktop computer and laptop. This tool can work even with the power of USB. It is different from what we have in the past. We cannot use oscilloscope any time and any place because it needs big source electric power.
The USB oscilloscope is beneficial in many ways. This instrument is very portable, easy to use, less electricity consumption, can run from battery source, and very easy to access information. It is easier to collect data from this modern device. The date can be transferred to many users not only single user. This tool comes in different distinct features for many different needs and professions.
About the Author
For your need of cool and modern USB oscilloscope, you might consider of getting a cheap one. If you are looking for a cheap oscilloscope, you might want to take a look at some types of new oscilloscope available on the market.
some electronics questions involving opamps and music:?
OK, the following questions are from my electronics lab. I know most of these questions can't be answered out of context, but if they can, can you help me out?
8. Change the opamp supplies to Vsupply_pos=10V, Vsupply_neg=0V. Use the CD
player or your own portable music player headphone output to drive the circuit
with a music signal. What happened? Why?
11. Play tracks #3- #7 (sinusoids at 2Hz, 20Hz, 200Hz, 2KHz, and 20KHz) while
measuring the voltage on both sides of C407 using two channels of the
oscilloscope. Is this capacitor really a short circuit at all music frequencies?
13. Typical headphones have a resistance of about 50 ohms. Given this,
what purpose is served by the opamp?
14. Why is C407(capacitor) needed in this circuit? Hint: recall the results of step 8.
OK, bearing in mind lack of certain details.
8. Bye bye to the bottom half of the sine waves. It'll turn Barry Manilow into Slipknot by squaring off the signal.
11. Depends how big C407 is. If it's 100uF+ then as good as a short circuit. If it's 10pF then no.
13. Impedance conversion. The output impedance of the op-amp circuit matches the impedance of the 'phones.
14. To stop the DC path.
Best I can do with the available information.
Agilent 5000 Series Portable Oscilloscope
