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Gravimeter

A technology of hydrometer and balance bar, which is applied in the field of hydrometer, and can solve the problems of inability to measure liquids with high precision

Active Publication Date: 2015-05-06
浙江华威设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiency that the existing hydrometer can only be accurate to three decimal places and cannot measure liquids with high precision, the present invention provides a new type of hydrometer, which can measure the density of different liquids with high precision

Method used

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Embodiment Construction

[0011] Such as figure 1 As shown: there is a light source at one end of the balance bar, and the light sources are respectively projected on two parallel glass plates, and the light is first projected to a beam splitter G1, whose surface is coated with an aluminum semi-reflective film, and the second glass Plate G2 is a compensation plate. M1, M2 are plane reflectors perpendicular to each other, G1, G2 and M1, M2 all form an angle of 45 degrees. M2 is a fixed mirror, M1 can move back and forth on a precision track, and E is a receiving screen. A beam of light from the light source is on a parallel plane glass plate G1, and a reflective film on the rear surface of this plate splits the incident light into two beams. One beam is reflected light 1, and the other is transmitted light 2, and the light intensity of the two beams of light is approximately equal. Beam 1 exits G1 and then enters M1; beam 2 passes through G2 and enters M2, and the reflected light passes through G...

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PUM

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Abstract

The invention relates to a gravimeter, in particular to a high-accuracy gravimeter, which comprises a measuring part and an observing part, wherein the measuring part comprises a balancing pole supported by a support post arranged on a base, and a measuring cone suspension mechanism on one side of the balancing pole; the observing part comprises a laser arranged on the other side of the balancing pole, a horizontal reflecting mirror arranged above the balancing pole, and a vertical reflecting mirror fixed on the base and positioned on the same side as the measuring cone suspension mechanism; the base which corresponds to one side of the balancing pole on which the laser is arranged is provided with a projecting plate; a beam splitter mirror is supported on the projecting plate through a beam splitter mirror supporting rod; and a compensating plate is supported on the base corresponding to the same side of the balancing pole and the measuring cone suspension mechanism through a compensating plate supporting rod.

Description

technical field [0001] The invention relates to a hydrometer, especially a hydrometer which can greatly increase the accuracy of the balance by utilizing the optical principle and the adjustment of the balance moment. Background technique [0002] The hydrometer in the prior art is made according to Archimedes' law and the condition that an object floats on the liquid surface and is balanced, and is an instrument for measuring the density of a liquid. It uses a closed glass tube with uniform thickness at one end, scale paper on the inner wall, and a slightly expanded bubble at the other end, which is filled with small lead particles or mercury, so that the glass tube can be vertically placed in the liquid to be tested. Immersed to a sufficient depth and can float stably in the liquid, that is, when it is subjected to any shaking, it can automatically return to a vertical resting position. When a hydrometer floats in a liquid, its own gravity is equal to the gravity of the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N9/12
Inventor 毛陈贾睿
Owner 浙江华威设备制造有限公司