Figure 1
From: Application of Instantaneous Rotational Speed to Detect Gearbox Faults Based on Double Encoders
![Figure 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs10033-019-0324-z/MediaObjects/10033_2019_324_Fig1_HTML.png)
Pulse sequence of shaft angular displacement
From: Application of Instantaneous Rotational Speed to Detect Gearbox Faults Based on Double Encoders
Pulse sequence of shaft angular displacement