Acoustic Image Analysis

Acoustic analysis locates and analyzes partial discharge or gas leak in the acoustic image by viewing and adjusting sound source and image parameters. For gas leaks, cost calculation parameter and leak level can be further adjusted to analyze the leak cost. The analysis operations supported by different types of acoustic images are as follows:

Gas Leak Detection (LD)

Supports viewing basic information of the gas leak sound source, such as frequency range, sound source distance, etc.
Supports viewing Signal and FFT diagram.
Supports adjusting parameters such as sound source distance, system pressure, leak mode, etc., for secondary analysis of the image and leak cost calculation.

Partial Discharge Detection (PD)

Supports viewing basic information of the partial discharge sound source, such as frequency range, sound source distance, etc.
Supports viewing PRPD, Signal, and FFT diagram.
Supports calculating the possibility of specific discharge types and providing suggestions.

Acoustic-Thermal Image

The acoustic-thermal image can perform gas leak or partial discharge analysis according to the acoustic image detection mode. Its accompanying radiometric image provides the temperature distribution at the sound source location, helping to locate and determine if there is a gas leak or partial discharge phenomenon.

Table 1 Image Analysis Features
Feature	Description
View Image Information	Includes visual image, file type, resolution, instrument model, capture time, etc. See Navigation for Analysis Tab (PD Acoustic Image) or Navigation for Analysis Tab (LD Acoustic Image) for function location.
Adjust Acoustic Image for Better Observation	Supports settings such as intensity scale, acoustic palette opacity, grayscale image settings, image rotation, etc. See Adjust Acoustic Image for details.
Gas Leak Analysis and Cost Calculation Parameter Settings	Includes acoustic image parameter settings, cost calculation parameter settings, and display of acoustic analysis result, signal, and FFT diagram. See Navigation for Analysis Tab (LD Acoustic Image) for function location. See Bottled Gas Leak and Cost Calculation for bottled gas leak configuration details. See Compressed Air Leak and Cost Calculation for compressed air leak configuration details.
Partial Discharge Analysis	Includes viewing acoustic image parameters and displaying acoustic analysis result, PRPD, Signal, and FFT diagram. See Navigation for Analysis Tab (PD Acoustic Image) for function location.
Thermal Image Analysis	In the acoustic image analysis interface, click to add the thermal image. Click on the thermal image to activate the analysis tool bar, which provides the full thermal analysis function scope. See Thermal Analysis Tools and Operations for instructions.
View Measured Results and Charts, and Export the Results	View the discharge type proportion of the partial discharge acoustic image or the leak level, leak rate, leak cost, etc., of the gas leak acoustic image through the Acoustic Analysis Result tab. Supports viewing PRPD, Signal, and FFT diagram; right-click the diagram to export or copy the image. See Navigation for Analysis Tab (PD Acoustic Image) or Navigation for Analysis Tab (LD Acoustic Image) for function location.
Manage Image Annotations	Image annotations include color tags, fault ratings, tag notes, text notes, picture notes, voice notes, and etc. See View and Modify Image Annotations for instructions. Color tag: Configured in client favorite folders. Can be modified during analysis. Fault rating: Applies to images captured in inspection mode with pre-configured rules. Can be modified during analysis. Text note: User-added text during capture. Can be modified during analysis. Voice note: User-recorded audio during capture. Playback supported. Tag note: Text tags added during capture (requires a tag note template). Can be modified during analysis. Sketch note: User-drawn graphics during capture. Can be shown/hidden in client. QR Code Note: The QR code note is specific information of the observed target. It is added manually or by scanning QR code when the thermal image was taken by the device.
Image, Cost Calculation, and Leak Level Parameters Synchronization	Synchronize image, cost calculation, and leak level parameters across acoustic images in a task list for efficient batch updates. See Apply Image Parameters to All Images in Task List and Apply Cost Calculation and Leak Level Settings to All for details.

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