RPM Measurement Using a Microcontroller - The LM2907 Technique
2 years ago
17
A robust way to measure RPM using a technique modeled after the LM2907 frequency to voltage converter. I like this technique for the following reasons:
It uses regularly spaced, clock generated interrupts.
There are no division operations that could lead to a divide by zero error.
There are no subtraction operations that could lead to sign errors.
It is robust to noise such as contact bounce.
It naturally filters out high frequency noise in the signal.
It does not require an analog input.
The code is very compact; although, it does require floating point math.
Loading comments...
-
19:55
EEVblog Channel
1 year agoEEVblog 1521 - How to Measure Differential Probe CMRR
33 -
5:04
SAPA
3 years ago00023091.mp4 (rpm)
1 -
14:24
Ginger ASMR lofi
1 year ago $0.03 earnedMeasuring You All Over 📏 | lofi | ASMR
182 -
14:03
Dacha Life
4 years agohow to modify mastech ms5308 lcr meter
-
3:07
AchieveYourPotential
1 year agoPhysics Measurement Techniques Time and Pendulums Part 1
1 -
12:00
EEVblog Channel
1 year agoHow to Measure Oscilloscope ADC Dynamic Range
24 -
8:11
AchieveYourPotential
1 year agoPhysics Measurement Techniques Using a Ruler and Cylinder Part 2
1 -
37:43
EEVblog Channel
10 years agoEEVblog #594 - How To Measure Power Supply Ripple & Noise
10 -
25:46
WalterBunning
1 year agoAdjustment and calibration of the RCBS powder micrometer
11810 -
0:58
PENNTOOLCO
1 year agoEasily measure the outside diameter of objects iGaging Electronic Outside Caliper Igaging's 35 OD8