Situation: I want to try and learn a bit more about the inner workings of multimeters and their signal conditioning.
So far I have just spend some time to look into old Fluke material for descriptions and circuit diagrams of the 8020A and 8600A (desk model, not typo).
So it seems that I grasped the idea of how a dual-slope DMM works, including the description of how the cycle parts like Autozero, integration, read, and if applicable, overload are handled.
- I guess thats what they say nowadays about a DMM having a "analog" Frontend?
- Are there more modern techniques of reading a signal, especially when using TrueRMS and distorted AC measurements? I remember that Keysight (and maybe Hioki?) were mentioned as having a way more modern way of sampling AC, and I would be interested to read more about the techniques used in there