Portable ultrasonic facilities diagnosis device

A portable device for diagnosing failure of a target instrument by detecting ultrasonic waves from the target instrument and by visualizing the ultrasonic waves on a display of the portable device, wherein the target instrument is a failing machine, a failed facility or a leaking gas pipe, which generates the ultrasonic waves, the portable device comprises:

• an ultrasonic sensor array having ultrasonic sensors each sensing ultrasonic signals radiated in form of the ultrasonic waves from the target instrument which serves as an ultrasonic sound source;
• a data acquisition board (DAQ board) for acquiring the ultrasonic signals at a sampling frequency;
• a main board having an operation processor that processes the ultrasonic signals received from the DAQ board into a visualized image on the display, wherein the DAQ board and the main board are adjacent and engaged to each other in the portable device;
• a non-transitory data storage medium for storing the visualized image from the operation processor;
• an optical camera for detecting and transmitting an optical image of the ultrasonic sound source to the main board, wherein the optical camera is disposed in the portable device;
• and
• the display for displaying the visualized image and the optical image from the main board, wherein the optical image and the visualized image are displayed in overlap with each other on the display,
• wherein the visualized image is implemented by an operation program embedded and executed in the operation processor, wherein the operation program performs a distance delay calculation by calculating respective distances between the ultrasonic sensors and virtual plane points of the radiation sound source, applies time delay corrections to each of the ultrasonic signals using the distance delay calculation, and generates sound source values serving as the visualized image for each of the virtual plane points by summing the time delay corrections and by calculating beam power levels of the sound source values.