An acoustic array system for anomaly detection is provided. The acoustic array system (100) performs a scan (or a progressive scan of frequencies) of a given volume by transmitting one or more signals, and receives one or more reflected signals from objects within the volume. The reflected signals are then amplified and converted to a set of digital signals. Features of the set of digital signals are extracted both in time and frequency domains. The acoustic array system (100) further performs a comparison of these set of digital extracted features with the reflected signals via machine learning techniques. Based on the comparison, the acoustic array system detects one or more anomalies.

An illustrative device for creating images via ultrasonic pulses comprises an electronics chamber and a probe head. The electronics chamber comprises a motor with an output shaft. The probe head is attached to the electronics chamber. The probe head includes a liquid-filled chamber that comprises an ultrasonic transducer configured to transmit and receive ultrasonic pulses and a mirror configured to reflect the ultrasonic pulses. The mirror is configured to rotate. The output shaft of the motor and the mirror are rotationally coupled.

An object information acquiring apparatus comprises a receiver receiving an acoustic wave propagating inside an object and convert the acoustic wave into an electric signal; a scanning unit configured to causing the receiver to scan the object; a control unit configured to controlling operation of the scanning unit; a detection unit configured to detecting a status of the acoustic wave reception; and a processing unit for acquiring characteristic information on the inside of the object on the basis of the electric signal, wherein the control unit decides whether or not the operation of the scanning unit is changed, on the basis of a result of detection by the detection unit.

The advantageous embodiments provide an apparatus for identifying anomalies on an object comprising a sensor system and an analysis process. The sensor system is configured to detect a presence of the object, identify a speed of travel for the object, and determine a scan rate for the object using the speed of travel to generate scan results. The analysis process is configured to analyze the scan results and determine whether a number of maintenance anomalies are detected on the object using the scan results.