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29 Jun 2014

Oscillo2-500x349

by prem_ranjan @ open-electronics.org:

We have designed an Oscilloscope using PC and Arduino Board. The signal is first of all fed to the Arduino Board where the analog signal is converted to a digital signal by the ADC which is then serially outputted to the PC and is read by the MATLAB software via the COM ports. Here the signal is read in the form of digital data but then is converted to analog one by using the resolution of the ADC used by the Arduino Board. The MATLAB software was then used to plot the signals.

A PC and an Arduino: here’s your DIY Oscilloscope - [Link]

23 Jun 2014

An all-in-one breadboard with Oscilloscope, Spectral Display, Function Generator, and Power Supply.

We are excited to bring a low-cost audio range electronics development board to classrooms, labs, small businesses, and techno-geeks everywhere. This idea has been bouncing around in our family for many years and now the technology has caught up to make it a reality at a price that schools and individuals can afford. We have paired a traditional prototype board (or breadboard) with an electronics suite so that the experimenter does not have to purchase the expensive electronics test equipment needed during development. It is everything we wish we had when we were learning about circuits on a breadboard.

Bakerboard: The Educational Breadboard with More - [Link]

15 Jun 2014

In this episode of  “The Ben Heck Show” Ben takes a look on some problems that can be solved using high end oscilloscopes. First he will try to determinate the dot clock frequency of a LED display he created, secondly he will take a look on the I2C EEPROM write Timing  and finally he will use the logic analyzer on the oscilloscope to take a look on the entire address bus of a game console and will try to capture the reset vector. To achieve all that he takes a road trip to Madison Area Technical College to visit their electronics lab and get his hands on the high end oscilloscopes they have.

The dot clock frequency he will try to measure is how fast the pixels (dots) of the Vishay LED Display Module LEE128G032B are updated. To measure that he hooks the oscilloscope probe to data clock PIN. The scope he uses is an  Agilent oscilloscope MSO7012B . This scope is a 100Mhz Mixed Signal Oscilloscope with two analog inputs and 16 digital channels and is equipped with a 12.1” XGA display. It has a very fast update rate of up to 100k waveforms per second and thus enables us to capture details and infrequent details that other scope miss. It also has Standard 8 Mpts MegaZoom III deep memory and Automatic Search and Navigate function.

On the next example he is doing a I2C EEPROM analysis (I2C is a serial bus that enables us to connect up to 128 devices using only two lines, data and clock, but it can be a little slow) by writing 4 bytes of data to the EEPROM. He captures the data being written to the EEPROM and analyzes them.

On the third and final example he uses the Agilent oscilloscope MSOX3012A logic analyzer function to analyze an ATARI address bus and capture the reset vector . A reset vector is the position in memory that a CPU starts to execute code. There can be a reset vector for the reset button and another for “cold boot”. To capture the signal the scope is set to digital mode and a logic analyzer probe is attached. The MSOX3012A is a 100 MHz, 2 Analog Plus 16 Digital Channels oscilloscope with 8.5-inch WVGA display, 1M waveforms per second and 4 Mpts memory.

If you would like to know more information about the mentioned products above or other high-end oscilloscopes visit Newark US or Newark Canada. Also you can Win a Tektronix TBS1202B-EDU Oscilloscope, plus T-Shirts! on this contest giveaway or win other great stuff here.

The Ben Heck Show – Take a Look Inside with Oscilloscopes - [Link]

1 Jun 2014

The filter shape of an HF bandpass filter that is designed for the 30m amateur radio band (10MHz) is measured using a Tektronix MDO3000 mixed domain oscilloscope. The arbitrary function generator (AFG) is used to generate a noise waveform that is flat across the HF spectrum, and the filter shape is then shown on the spectrum analyzer. The filter being measured is the front end bandpass filter of a Softrock Lite II SDR receiver kit.

How to measure an HF Bandpass filter response with the MDO3000 - [Link]


30 May 2014

2205931

This is the portable version of the Xminilab. The Xminilab Portable is a small mixed signal oscilloscope with an arbitrary waveform generator and protocol sniffer.

Features:

  • Mixed Signal Oscilloscope: Simultaneous sampling of analog and digital signals
  • Advanced Trigger: Normal / Single / Auto, with rising or falling edge and adjustable trigger level
  • Meter Mode: Average, Peak to peak and Frequency readout
  • XY Mode: Plot Lissajous patterns, See the phase difference between two waveforms
  • Spectrum Analyzer with different windowing options and selectable vertical log
  • Horizontal and Vertical Cursors with automatic waveform measurements
  • Arbitrary Waveform Generator with Sweep on all parameters
  • Display options: Persistence, Different grid options, and more
  • Curve tracer function

Xminilab Portable Small Mixed Signal Oscilloscope 2.42″ OLED - [Link]

30 May 2014

rod

by elektor.com:

The HMO1002 digital oscilloscope from Rohde & Schwarz is a quality test and measurement device representing good value for money. Three models offer bandwidths of 50, 70 and 100 MHz and an optional eight-channel logic probe allows full use of the scope’s MSO capabilities. Among the stand-out features of the scope include its fast displayed waveform update rate and high vertical-input sensitivity.

The fan-less design offers a 1 GSample/s sample rate and a memory depth of 1 MSample. Additional built-in features make it an ideal diagnostic and teaching tool for a wide range of applications for students, service technicians and for developers of embedded systems. The three digit DVM function simplifies the service technician’s work, cuts down on work bench clutter and gives the HMO1002 the ability to make simultaneous voltage measurement on two analog channels.

Its function generator is particularly useful in educational environments, producing a range of different waveforms at frequencies up to 50 kHz. Pupils, trainees and students will find it useful to solve a variety of measurement tasks. An integrated pattern generator makes it easy for developers of embedded systems to configure and generate protocol telegrams at speeds up to 50 Mbit/s. This gives developers the freedom to program customized waveforms together with the supported predefined serial communication protocols. Integrated in the HMO1002 is an optional hardware-accelerated serial bus signal trigger and decoder with support for some of the most popular communication protocols (I2C, SPI, UART, CAN or LIN).

New DSO from Rohde & Schwarz - [Link]

10 May 2014

A quick look at the new Siglent SDS2072 super phosphor digital oscilloscope.
A quick look at the bench power supply project and a component list.

T4D #100 – SIGLENT SDS2000 and Power Supply Project - [Link]

10 May 2014

A short video sharing the excitement of unboxing a new Tektronix MDO3000 Mixed Domain Oscilloscope!

Unboxing the Tektronix MDO3000 Oscilloscope - [Link]

26 Apr 2014

FS80H0VHTVDY4H4.LARGE

This instructable will show you how to build a portable Touch Screen Oscilloscope for less than 40 U$! johnag @ instructables.com writes:

The oscilloscope is one of the most powerful electronic instruments that is available to electronics hobbyist, experimenters, and engineers. It is mainly used to measue time-varying signals. Any time you have a signal that varies with time( slowly, quickly, and /or periodically ) you can use an oscilloscope to measure it , visualize it, and to find any unexpected features in it.

Make an Oscilloscope using the SainSmart Mega2560 - [Link]

25 Apr 2014

This video describes the basic concept behind eye patterns on an oscilloscope and how they can be used to evaluate the quality and signal integrity of a serial bit stream or data stream. It discusses how signal impairments such as jitter, ringing, overshoot, undershoot, noise, etc. can all be evaluated on a serial bit stream using an eye pattern.

What is an Eye Pattern on an Oscilloscope - [Link]



 
 
 

 

 

 

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