hello, i am new here and i need help with my project. i have to create a proto that measures stator current from an induction motor. i tried arduino uno r3 w/ acs712 as the main hardware for data acq but I don't think the sensor is right. can u guys suggest any other sensors or anything that could m…

this is the raw current signal that we collected. its current wrt time (ms): [image] but this is our expected output: [image] do u guys know how can we come up with our expected output?

Hi, What would you expect on the sinewave of the motor current to indicate bearing faults? I doubt the UNO would give you the time resolution to see any noise from a failing bearing. Can I suggest you get a motor, damage the bearing or fill it with sand/iron filings to first see what signal you h…

my expected output should be in sinewave form as per the past studies but the current signal that we're collecting is not like that at all. as of the moment we're just collecting our data from the healthy motor, no indicated faults yet. so can u guys suggest ways on how can we come up with a sine wa…

Hi, We need to see your code. The output trace looks like it is reading average, rms, or peak and not instantaneous. The fact that there are 2253 between readings probably means your code is doing a lot more than reading analog and outputting. Thanks.. Tom.. :smiley: :+1: :coffee: :australia:

[image] panonymous: this is the code To add code please click this link; [image] How to get the best out of this forum IDE 1.x See also FAQ - Arduino Forum for general rules on forum behaviour and etiquette. Hello, Welcome to the Arduino Forum. This guide explain…

Hi, What does PZEM have to do with 712 sensor? Can you please post an image(s) of your project? Can we please have a circuit diagram? An image of a hand drawn schematic will be fine, include ALL power supplies, component names and pin labels. Is this a school/college/university project? Thanks…

we changed the sensor to pzem-004t and this is the wiring now [image]

this is the type written code: #include <PZEM004Tv30.h> #include <SoftwareSerial.h> SoftwareSerial pzemSWSerial(9, 10); PZEM004Tv30 pzem(pzemSWSerial); void setup() { /* Debugging serial */ Serial.begin(115200); } void loop() { float current = pzem.current(); Serial.println(current); }

#include <PZEM004Tv30.h> #include <SoftwareSerial.h> SoftwareSerial pzemSWSerial(9, 10); PZEM004Tv30 pzem(pzemSWSerial); void setup() { /* Debugging serial */ Serial.begin(115200); } void loop() { float current = pzem.current(); Serial.println(current); } You will find that the PZE is a home e…

How to measure stator current in 1ph induction motor

Projects General Guidance

TomGeorge February 25, 2023, 11:52am 29

To add code please click this link;

Thanks.. Tom..

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How to measure stator current in 1ph induction motor

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