Test and Measurement

Here are Instruments like Power Supplies, Multimeters and Oscilloscopes. Logic Analyzers, Spectrum Analyzers and Data Loggers too. - Electrical Engineering Metrics

Search This Blog

Tuesday, October 1, 2019

Open Source Tablet Oscilloscope

An android virtual instrument - OsciPrime is an Open Source Android high speed data acquisition hardware platform and Android oscilloscope application.

Open Source Tablet Oscilloscope

OsciPrime data acquisition

Using USB, the hardware plugs into Android devices that support USB Host. Together with the OsciPrime Android oscilloscope application it turns a tablet or mobile phone into a high speed data acquisition system.

Open Source Android Oscilloscope

Hardware Specs:
  • 2x Analogue Input @ 8bit/6Msps
  • 5 analogue gain levels
  • 3.3 MHz - 8.0 MHz Bandwidth (gain dependant)
  • 16 V Max Input Voltage
  • 880 mW Power Consumption
  • Designed for 10x Probes
The Android App Instrument Performance and Controls Include

Controls -V-Offset, Time-Offset, Calibration; Trigger Controls Falling/Rising and Edge, You can Measure Voltage, Freq and Period.  
  • Range +/- 1.5 V up to +/- 16 V
  • 5 us/Div max - 1 ms/Div min 
  • Processing 400'000 samples per second

Mooshimeter - Smartphone DMM

Measure 600V and 10A with 24 bit resolution through 50 meters of space and 6 months of time

"A wired meter forces you to get up close and personal with what you are measuring. This can be a mild inconvenience or downright dangerous. The wireless link provides you the freedom in your measurements..."

Mooshimeter - Smartphone DMM

The Mooshimeter makes multi-channel measurements possible in situations that are too fast, too slow, too sensitive or too dangerous to use a traditional multimeter. A SmartPhone with an App does the job in Tandem with the Measurement Hardware Box with the Probes. Android app available.

Mooshimeter - Smartphone DMM

(Please always use external shunts, current transformers, sensors, attenuators to measure High Energy Parameters - means High Volatge, High Current, High Frequency or a combination of them. -  delabs)

Specifications Include
  • Up to 600V, DC or peak AC 
  • Better than 0.5% accuracy DC
  • Better than 1.0% accuracy AC 
  • 10 Megaohm input impedance
  • 1% accuracy over 20 Ohms – 20 Megaohms
  • 8kHz dual simultaneous sampling
  • Up to 10 Amps 1% accuracy
  • Bluetooth Low Energy Radio

SpecScope from NFX Development

This is an interesting attempt in the right direction. The bandwidth may be only the audio range, but the first instruments with touch interface for tablets are being built for tablets even by DIY Enthusiasts.

SpecScope from NFX Development

SpecScope is a spectrum analyzer and is the second in the line of engineer applications from NFX Development. The SpecScope incorporates the speed and ease of use to access FFT frequency measurements in a hurry.

SpecScope Spectrum Analyzer

Some of the Features
  • Logarithmic/Linear measurements
  • Pinch to zoom in both X and Y axis
  • Selectable No. bin for accuracy versus speed
  • Three settings of spectrum averaging
  • Threshold trigger to hold the peak value
  • Tap to pause and resume measurements (graph is still navigational in this mode)
  • A adjustable sample rate allow analysis from 10 Hz to 22KHz

Extra Extra !