Research how current can be measured
2 ways:
Older way: Shunt Resistor
- What is a shunt resistor
- how does it work
- why is it the older method
Newer way: Magnetic Sensing using Hall effect sensors or ct’s
- what is Hall effect sensor and how does it work
- how does the current transformer work
- why is it the newer method
Considerations for both:
- can they both measure AC and DC current
- which one is easier to understand (for teaching and documentation purposes)
- which one is easier to implement
- is one method cheaper or more accurate
- what are the disadvantages and advantages
Reference meter used INA219AIDR IC
- which method does this IC use to measure the current
- is this the best IC to use for the meter
- can it do both dc and ac current
Concerns:
How will whatever current measured be communicated and end up on display
I was able to form an understanding of measuring current using a shunt resistor and researched the INA219AIDR IC. I need to continue forming an understanding of hall effect sensors to make a more informed opinion on which method would be best to use.
To Do:
Newer way: Magnetic Sensing using Hall effect sensors or ct’s
- why is it the newer method
Considerations for both:
- which one is easier to implement
- what are the disadvantages and advantages
Concerns:
How will whatever current measured be communicated and end up on display