Hydrostatic balance with an accuracy of 0.1g, equipped with a suspended basket container for measuring solid and liquid

Hydrostatic balance with an accuracy of 0.1g, equipped with a suspended basket container for measuring solid and liquid

This utility model provides a hydrostatic balance for testing the apparent specific gravity of granular stones and pebbles. It includes a platform, columns fixed on the platform, crossbeams assembled on the columns, as well as indicators, cursor devices, and hanging ears at both ends mounted on the crossbeams. There is a water glass container with an overflow valve placed on the platform. There are hanging baskets and trays with sieve holes on the lifting ears at both ends of the crossbeam. This device not only has a compact structure and simplifies the operating procedures, but also significantly improves testing accuracy, accurate measurement values, and high efficiency.

Hydrostatic balance with an accuracy of 0.1g, equipped with a suspended basket container for measuring solid and liquid

At present, the testing departments of domestic construction and highway construction units generally use cumbersome testing methods when testing the specific gravity of gravel and cobblestones. First, place the sample into a wide mouthed bottle with a grinding mouth, then inject drinking water into the bottle, cover the bottle mouth with a glass slide, and shake it up, down, left, and right to remove bubbles. After the bubbles are expelled, add drinking water to the bottle until it protrudes from the edge of the bottle mouth. At this point, quickly slide the glass slide along the bottle mouth to make it tightly adhere to the water surface of the bottle mouth. Wipe off the moisture outside the bottle and use a tray balance to weigh the total weight of the sample, bottle, water, and glass slide. This experimental method is complex to operate, with low accuracy of the tray balance, and due to different operator techniques, it is prone to errors, resulting in unreliable experimental data. So far, there is no ideal testing device applied in actual testing work.

Hydrostatic balance is suitable for highway, transportation, road construction engineering, colleges, laboratories and other units. It is a measuring tool for testing the density of gravel, pebbles and other materials. Hydrostatic balance is based on the principle of Archimedes' law, which measures the difference between the mass of the measured object in air and the mass immersed in water, calculates the volume of the measured object, and calculates its density.

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