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  • Users: fatpo
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  1. fatpo

    Advise on this circuit

    I've earlier posted some threads about gyros. Finally I can concentrate on this. I use a gyro from Nec Tokin and managed to set up this circuit: The gyro gives (when still) a signal at app. 1.3[V] and in motion +- 0.3[V]. First the signal goest through a HP filter with a large tau-time...
  2. fatpo

    Importing and plotting ASCII file

    I have a ASCII file with measurments of a signal. I want to import the data in Matlab and plot the resulting curve. The thing is that the file contains at least 100k values. I wonder if Matlab has any limitation problems with this? I tried this: ------------------------------ clear all; global...
  3. fatpo

    accelerometers

    Is it possible to calculate the angular velocity using only accelerometers? It can be done with gyros, but i want to implement it with accelerometers, maybe combine 2-3 or them i same application...is the any way?
  4. fatpo

    OP amp question

    I have a DC signal at 2.43V from a sensor. I want to amplify only the changes around this 2.43 signal. When the signal's not "changing" it'll go back to the level (2.43V). I tried first with just feeding the OP with a 2.43V offset but the problem is that the original signal at 2.43 is changing...
  5. fatpo

    Filter design

    I need some help with a filter design. Its about filtering the output signals from a accelerometer and a gyro. If look at http://hem.bredband.net/yuspoy/filter.pdf (page 3) you see the filter suggested there. How can I build one with the same characteristics as in the pdf document? Math isn't...
  6. fatpo

    Gyro drift correction

    I'm working with gyros (ADXRS150 from Analog Devices). How can I filter the output so that the drift-problem minizes? Do you know any filtering method (Kalman, FFT/DFT etc) that can be applied here? Any suggestions? [3eyes]

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