Nondestructive Inspection of a Wooden Pole Using Ultrasonic Computed Tomography

Ultrasonic computed tomography is discussed as a means of accomplishing the nondestructive inspection of wooden poles. With this tomography, propagation time of ultrasound is used in a wooden pole as the measured data for the computed tomographic reconstruction because of its measurement ease, unlike the conventional technique. As a result, it has been found that ultrasonic computed tomographic imagings of a wooden pole can be done easily by the method proposed herein and are sufficient for the nondestructive inspection of such poles. Therefore it is concluded that the proposed method will become generally used for such inspection applications.