Evaluation Performance of Ultrasonic Testing on Fruit Quality Determination

Figure 5

Ultrasonic testing of fruits: no signal was observed in (a) a tomato with skin and (b) an apricot without skin. Receiving probe can collect transmitted signals when the shell of (c) a tomato and (d) an apricot was used for experimentation, respectively.

(a)

(b)

(c)

(d)