I have been looking at getting a Rigol Oscilloscope for my test lab. It would help with showing PWM projects on the Raspberry Pi and Arduino devices. I tend to not get the most expensive components for my test lab. I purchase components that will last 3-5 years and allow my projects to grow into them.
1 Hz = 1 /seconds or 1 / 1 ms = 1000 Hz
1/ 0.001 seconds = 1000 Hz = 1 = (0.001 seconds )(1000/seconds)
Think of is as 1000 Hz give you a period of 1 ms.
100 Hz is a period of 10 ms 1/0.010 seconds = 100 Hz.
Generally, scopes will feature around 8-10 vertical (voltage) divisions, and 10-14 horizontal (seconds) divisions. Older scopes (especially those of the analog variety) usually feature a simple, monochrome display, though the intensity of the wave may vary.
This is the Rigol DS1104Z Plus oscilloscope. It is in the $400-$500 range ($499). It is considered a good starter for a home test lab.
- 4 Channels, 100 MHz Bandwidth and 16 digital channels
- Digital Logic Connector for optional MSO upgrade: RPL1116
- UltraVision: Deeper memory(Standard 12 Mpts, Upgradeable to 24 Mpts)
- UltraVision: Up to 30,000 wfms/s Waveform capture rate
- UltraVision: Multi-Level intensity grading display
- UltraVision: Realtime waveform record, Replay, function (Opt.)
- A variety of Math Functions
- FFT function
- A variety of Trigger Functions
- Optional Serial Bus Triggering and Decoding functions(RS232, I2C, SPI)
- Standard Mask test function
- Automatic Measurements with Statistics