| Products > Test Equipment |
| Hacking the Siglent SDM3055 Bench DMM |
| << < (17/35) > >> |
| alexvg:
It's possible to have more range, but I need to do a noise measurement (FFT analysis of the ADC running at 5KHz). It's also possible to easily replace the used ADC with a better one (like the AD7175-2 used in SDM3065X with some additionnal electronic). The SDM3055 board is more interresting than the SDM3045 and SDM3065, modifications are easy but available space inside is very limited. |
| alexvg:
This is just a first test for the new interface |
| tautech:
Puke green ? :scared: :-DD Otherwise nice improvements. :-+ |
| e0ne199:
dang you should use your ability to hack 121GW instead of this DMM... |
| alexvg:
I'm currently writing the software using a Windows emulation to have an easier development. I'm thinking about 2 hardware mods : 1. pre-regulated power supply (I already have components but haven't got time to assemble them) 2. remove ADC and ref and add an additionnal board with a better reference (LTZ1000A) and a better converter (AD7175-2 or AD7177-2) But i don't know if the pcb and current components provide a noise floor enough lower to enable a good enhancement. I haven't got the tools to measure the 0.1-10Hz noise at very low level. |
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