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DIY Instruments for Amateur Space by Sandy Antunes

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Chapter 11. Instrument Modes

For both reliability and flexibility, you will want to program your CPU to allow for different instrument modes. We’ve discussed the need to set lower and upper thresholds on your detector in order to accomodate the lowest signal you expect, and the highest signal you expect.

Dynamic Range

We’re assuming, typically, that you’ve already chosen your image size or, if it’s a non-imaging detector, it’s effectively a single-pixel detector. Now you have to decide on an expected range that you wish to measure—an upper limit beyond which you do not expect to measure anything, and a lower limit that sets the minimum value you wish to measure. You also choose a desired accuracy for your measurement, which will determine your data ...

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