Showing posts with label Android-Instruments. Show all posts
Showing posts with label Android-Instruments. Show all posts

Sunday, June 05, 2016

Android Virtual Instrumentation

Any Tablet with an external Hardware can make a nice Instrument. The professional part lies in that external hardware and usability of the software or app. Windows Virtual Instrumentation are well known. Things like USB Scope and Data Loggers have been there for decades.

Now we have Android in which an Open Source product can be developed. The Open Source is both in Hardware and Software.

Android Virtual Instrumentation

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

Open Source Android Oscilloscope

Virtual Instruments for Android has a nice future in Industrial, Automotive and Measurement areas. You could start by Interfacing with Bluetooth, USB and then move to IoT and WSN.

Android OPC UA SCADA and Client

TeslaSCADA is a SCADA for accessing production and process data through smart phones and other Android devices, using the industrial communication standard – OPC Unified Architecture (UA).

These were some questions i got a few years back...

1 - If i had to create a crude "Lux Meter" and "db Meter" using the built-in camera and microphone on a Android Device - How would i Calibrate it ?

2 - Is there a Component(software) for Android to interlace with a Arduino Device as an external interface, This will help us make a DMM/Scope or even a Entire Lab Test bench centered around a Tablet and a Plug-in Mini Instrument Rack.

Both Sound or db Meters and Lux or Light Level Meters are in the Google Play nut need calibration. All These Instrument Needs a USB/Bluetooth Sensors.

Add Bluetooth you can carry your Tablet away from the instrument probing the DUT. (Device under Test)

Friday, March 06, 2015

Keysight BenchVue Mobile Interface

Keysight Oscilloscope Mobile is FREE software that lets you view and control your Keysight oscilloscope from your mobile device.

Keysight BenchVue Mobile Interface

BenchVue Mobile supports Keysight function generators, spectrum analyzers, power supplies, digital multimeters and oscilloscopes that are supported and connected by the BenchVue PC software.

Keysight Oscilloscope Mobile

The functionality in this app has been incorporated into a newer, free app named BenchVue Mobile that supports oscilloscopes, spectrum analyzers, function generators, DMMs, and power supplies.

Supports up to 4 analog channels, Simulation mode available, Save screen captures from your instrument onto your mobile device, Your scope can be connected via LAN, GPIB, USB or RS232.

Tuesday, March 03, 2015

Educational Function Generator Demo

This app from keuwlsoft puts a waveform on the audio output at 44.1 kHz and with a resolution of 16-bit. Two separate waveforms can be output to the left and right audio output channels respectively.

Dual channel function/waveform/signal generator for the speaker/headphone audio output. Educational use, for critical applications use a real calibrated function generator.

Educational Function Generator Demo

Educational Function Generator Demo

Output will depend on your device hardware. Some device hardware may may filter out the DC bias and low frequency signals. At high frequencies, the waveforms will be distorted due to limited number of samples for each waveform (for example at 4.41kHz, a sine waveform will be approximated by only 10 points).

Either sine, square or triangular waveforms can be selected with the 3 buttons on the left of this section.

This is a single screen app with two displays at the top showing the waveforms for channels 1 and 2 respectively. The output can be turned on with the blue button at the bottom right. The left and right audio outputs can be assigned to either channel 1 or 2 and turned on or off in this output box.

(This app has not been tested completely by me, looks interesting and useful for learning)

Monday, March 02, 2015

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

Thursday, February 05, 2015

Open Source Android Oscilloscope

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

Open Source Android 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

Thursday, August 07, 2014

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.

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. - ananth 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

Tuesday, April 15, 2014

QCRTGraph Real-Time Graphics Tools for Android

You can develop Android Virtual Instruments with these components. You could integrate scrolling graphs, meters, bar graphs, gauges, annunciators, dynamic text, and UI controls to Android/Java based applications.

QCRTGraph Real-Time Graphics Tools for Android 

The Real-Time Graphics Tools for Android library, entirely written using Java for the Android platform, is for developers who want to add sophisticated real-time graphics to their Android applications.

The software integrates the QCChart2D charting software with real-time data structures and specialized rendering routines.

QCRTGraph Real-Time Graphics Tools for Android

Process Variable and Alarms - Real-time data is stored in RTProcessVar classes. The RTProcessVar class is designed to represent a single process variable, complete with limit values, an unlimited number of high and low alarms, historical data storage, and descriptive strings for use in displays.

Panel Meter Indicators - The RTPanelMeter derived classes are special cases of the single value indicator classes that are used throughout the software to display real-time data in a text format. Panel meters are available for numeric values, string values, time/date values and alarm values.

Alarm Indicators - Alarm indicators are used to display alarm lines, symbols and fill areas for the RTProcessVar objects associated with the single value and multiple value indicator classes.

Quinn-Curtis is a leading supplier of real-time graphics tools software, for Windows, .Net, and Java platforms.

18 Hearthstone Dr., Medfield, MA 02052 USA