The display output module design of the veterinary B-ultrasound system has the function of display, that is, it can fully display all the functions of the veterinary B-ultrasound system through a friendly human-computer interaction interface, and can also obtain the contour position information and thickness value of the waterproof layer processed by the image processing module in real time. Since the veterinary B-ultrasound image measurement is in pixels, but the final thickness value should be the actual value in mm, it is necessary to first calculate the pixel value contained in the part to be measured, and then multiply it by a proportional coefficient k to calculate the actual length of the object. The accuracy of the proportional coefficient k is very important and has a direct impact on the accuracy of the test results. In general, the solution for calibrating the proportional coefficient is to enlarge the known image to increase the accuracy of the proportional coefficient, and the second is to measure multiple times, calculate the average value of the multiple measurement results, and finally use this average value as the final value of the proportional coefficient. The specific calibration method is not described in detail here.

Veterinary B-ultrasound BXL-V20

On the other hand, the module also has an output function, that is, the measured waterproof layer thickness value and the veterinary B-ultrasound image containing the waterproof layer thickness distribution information can be automatically transferred to Word for printing and output together to generate a report.

Principle of flexible waterproof layer thickness measurement, under ideal conditions with good test conditions, ultrasonic thickness measurement can be carried out by measuring the time interval of the reflected echo of the upper and lower heterogeneous interfaces of the flexible waterproof layer. The ultrasonic sensor of the flexible waterproof material veterinary B-ultrasound detector moves back and forth horizontally at the sampling point of the detection unit. Due to the material non-uniformity and acoustic impedance difference between the waterproof material itself and its internal impurities, the ultrasonic wave will be scattered on the heterogeneous interface, and then propagate in the medium along a complex path. In this process, heat is lost due to the generation of heat energy, which is the so-called signal attenuation, which is manifested in the missing parts on the veterinary B-ultrasound image; furthermore, the veterinary B-ultrasound image shows that the reflection coefficient of the heterogeneous interface of the upper and lower waterproof layer varies greatly, resulting in a large range of brightness changes in the light spots generated on the veterinary B-ultrasound image, resulting in uneven distribution of the brightness of the reflection stripes. However, these disadvantages can be avoided through post-image processing.

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