Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Need ideas for lightweight remote tachometer

Status
Not open for further replies.

palouseflyer

Newbie level 1
Newbie level 1
Joined
Apr 18, 2007
Messages
1
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
1,290
remote tachometer

I am looking for some ideas for a small remote wireless tachometer.

The application would be for an remote controlled helicopter, where the RPM of the main baldes could be measured and transmitted remotely.

One basic idea is to mount a small magnet to the fan of the heli - this fan rotates at a known ratio to the main blades. Then mount a small coil close to this magnet location, and feed that pulse to a small transmitter somehow... the received signal would then be perhaps amplified and fed into a multimeter that measures frequency. I realize this is quite sketchy, perhaps there are alternative ways to accomplish the same results. Bottom line, it has to be CHEAP to build! :)
thanks
 

tachometer multimeter heli

Hi,

I recommend you to use reflective type optocouplers.
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top