Negative pressure type device for measuring density of object
A negative pressure, object technology, used in measuring devices, specific gravity measurement, material analysis by measuring buoyancy, etc., can solve the problems that liquid-sensitive substances cannot be applied, and the density value of the measured object cannot be given, and achieves a simple structure. , Easy to operate, improve the effect of measurement accuracy
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[0007] As shown in the figure, the device for negative pressure measuring object density includes a cylinder 5, a weighing platform 1, a piston 7, a pressure sensor 4, a temperature sensor 12 for the object to be measured, and a gas temperature sensor 8. The cylinder 5 is placed on the weighing platform 1, the top of the cylinder 5 is provided with a piston 7 that can move up and down, and the piston 7 closes the cylinder 5; the pressure sensor 4, the gas temperature sensor 8 and the temperature sensor 12 of the measured object are arranged in the cylinder 5 and communicated with each other. To the outside of the cylinder body 5, the pressure sensor 4 and the gas temperature sensor 8 are exposed to the air in the cylinder body 5, the measured object temperature sensor 12 is in contact with the measured object 13 or embedded in the measured object 13, the piston 7 There is a tension device on it. The cylinder body 5 is also provided with a limit piece 6 that prevents the piston...
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