Measuring servos' current? - HeliFreak
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Eagle Tree Systems Onboard data loggers, telemetry, and OSD support


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Old 10-05-2015, 02:44 AM   #1 (permalink)
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Default Measuring servos' current?

I know the Eagletree is designed to plug in to the high current area and record motor current etc, but would it make sense to connect it "downstream" of the BEC, i.e between the BEC and the receiver (= FBL unit) to record the amps passing through the low power section of the electronics? This would be useful to discover the current demand of the servos and hence selecting a sufficiently rated BEC.

Nelson

EDIT
This question might be pointless if there is a separate sensor designed to measure servo current - it's a while since I looked at this system.
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Nelson JR DSX9 II; Stretched Atom 500 in Bell 222 body , TRex550 in Funkey/Century Jet Ranger. Stretched TRex550 in 600 size AS350 - . SK720 all round. Trex 450 S for sport practice. MCP-X.
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Old 10-05-2015, 01:11 PM   #2 (permalink)
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My HF Map location
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Quote:
Originally Posted by npomeroy View Post
....
EDIT
This question might be pointless if there is a separate sensor designed to measure servo current - it's a while since I looked at this system.
Looking further see there is such a sensor. It is rated 5A max continuous, and would be OK to connect to a single servo in my setup, but probably not OK for the whole low voltage circuit.
So I'm still interested in the possibility to connect the high power part of the Eagletree to the low voltage part of the electronics. Would it still function, and record current as if it was recording the motor current?
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Nelson JR DSX9 II; Stretched Atom 500 in Bell 222 body , TRex550 in Funkey/Century Jet Ranger. Stretched TRex550 in 600 size AS350 - . SK720 all round. Trex 450 S for sport practice. MCP-X.
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