Eggs are rich in high-quality protein and nutrients, making them an essential food on our dining table.
Eggshell is a perfect biological material, and the quality of eggshell has a significant impact on the hatching, storage, and transportation. Therefore, it is particularly important to accurately evaluate the quality of eggshell. The main indicators for evaluating eggshell quality currently include eggshell thickness, eggshell strength, dynamic toughness of eggshells, and eggshell microstructure.
Eggshell thickness is the earliest indicator used to evaluate eggshell quality and has always become one of the main indicators for evaluating the quality.
However, the thickness of eggshells is not uniform, it is different in different parts. Therefore, the uniformity of eggshell thickness can be considered as an attribute of eggs.
Good eggshell quality can largely reduce food safety risks and economic losses caused by shell damage.
The thickness of eggshell is the main factor that constitutes the compressive strength of eggshell, and it is also an important quality indicator of egg products.
The thickness of the eggshell should generally be maintained at 0.35mm or above, with good pressure resistance, long-distance transportation, and easy storage.
The thickness of eggshells has a significant impact on the damage rate. The damage rate is 2% to 3% for shells with a thickness of 0.38mm to 0.40mm.
The damage rate may be as high as 10% for shells with a thickness of 0.30mm to 0.27mm. When the shell thickness is less than 0.25mm, the damage rate can be as high as 85%.
The main advantage of ultrasonic thickness measurement is that it can measure the thickness of closed containers and other complex shaped samples that are difficult to reach both sides of the material, ultrasonic method only requires contact with one side of the test material to get a thickness value.
Using PM-5 Gen2 ultrasonic thickness gauge with a pen type probe to get the average thickness of the two ends, middle, and sharp end of the egg, with an accuracy of 0.01mm. The measurement echo is clear, the measurement value is obtained steadily and fastly.
Some glass products, including glass bottles, glass containers, glass tubes and light bulbs, as well as pipes or workpieces with small curvature, can also be measured by this method.
To learn more about ultrasound measurement technology, please contact our customer service for further information.