Measuring relative timing/phase of fast analog signals
Posted: Sat Mar 31, 2018 3:29 pm
I've raised a PR which adds this capability to the firmware, and also written a guide to how to install and use the patch (follow the link in the README). A phase sensitive detector is described with a guide to the theory of operation and a code sample.
I am intrigued by the application possibilities of this. I'm already using it in my electrical network analyser to measure the relative phase of sinewaves up to 36KHz. This can be done with about 10° accuracy at that frequency. Other applications that have struck me as interesting are ultrasonic range finders and sonars, but I'm sure there are numerous other uses.
I am intrigued by the application possibilities of this. I'm already using it in my electrical network analyser to measure the relative phase of sinewaves up to 36KHz. This can be done with about 10° accuracy at that frequency. Other applications that have struck me as interesting are ultrasonic range finders and sonars, but I'm sure there are numerous other uses.