Internal Combustion Engine Fault Identification Based on FBG Vibration Sensor and Support Vector Machines Algorithm

Figure 9

The characteristics of different fault feature vector: (a) fault type I, (b) fault type II, (c) fault type III, (d) fault type IV, (e) fault type V, (f) fault type VI, (g) fault type VII, (h) fault type VIII, and (i) fault type IX.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)

(i)