CN1030474A

CN1030474A - Multipurpose level

Info

Publication number: CN1030474A
Application number: CN 88103274
Authority: CN
Inventors: 胡宁成
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-05-27
Filing date: 1988-05-27
Publication date: 1989-01-18

Abstract

The invention provides a kind of highly sensitive, multiduty level meter.This level meter has used such principle: when the surface level at the vertical cross over pipe of level meter two liquid level places and the angle between measured surface are certain value, distance between two liquid levels is big more, the sensitivity of indication level or horizontal angle is high more, thereby the sensitivity that makes this type of level meter is than existing level instrument height.This level meter can also be measured the horizontal angle of measured surface, the absolute altitude of also available this level measurement target.

Description

Multipurpose level

The present invention relates to a kind of multiduty comparatively sensitive level meter.

The level meter that uses adopts a kind of like this method at present, leaves a bubble in being sealed with the glass tube of fluid, whether indicates tested planar horizontal with the position of center upper portion bubble.This level tube or the sensitivity of level box that this level meter uses are low.About its structure and principle, " building construction measurement " the 5th page and other works that China Construction Industry Press publishes all have narration.

The purpose of this invention is to provide the higher multiduty novel level meter of a kind of sensitivity.

Invention is achieved in that with long glass tube that surrounds rectangle or other shapes and forms a Communicating device, liquid and air respectively account for half approximately in the device, drawing on the glass tube vertical with surface level has scale, the identical complete symmetry of scale about this on two transparent tube.This back-shaped pipe is packed in framework metal or other material parallel to each other of two planes up and down, make the interior liquid level of two vertical tubes at same reading, and the upper and lower plane of this plane, two liquid levels place and this framework is parallel to each other, and two vertical tube axial lines are vertical with the upper and lower plane of framework.When measuring, framework is placed on the tested plane, as long as the both sides liquid level equates that this plane is promptly at horizontal level.When the difference in height of reading two liquid levels, just can calculate the angle of tested plane and surface level.Make contour aiming point at the frame upper surface two ends, the absolute altitude of just available this level measurement target.

Now in conjunction with the accompanying drawings the present invention is done detailed further specifying.L is the distance between two vertical tube axial lines, and L ' is the distance between two liquid levels, and α is the angle between tested plane and surface level, i.e. horizontal angle, and △ H is the difference in height of two liquid levels.Tg α=(△ H)/(L), tg α=1/ (COS α) (△ H)/(L '), for same α value, L ' value is big more, and △ H is also big more, thus the sensitivity of level meter is high more, and this is a ultimate principle of the present invention.Only about 10mm, the influence of liquid viscosity in addition is though framework has hundreds of millimeters still very insensitive to existing level instrument bubble.And level meter of the present invention, gas column L ' is shorter slightly than framework, and its length is the several times of existing level instrument bubble length or tens of times, and its sensitivity is much bigger certainly.For the ease of observing, can liquid level and reading be displayed in the horizontal direction by the isosceles right triangle total reflection lens.Also available magnifier amplifies reading.The AD section can be a straight tube, and the also available flexible pipe of A ' D ' section is connected, and whole back-shaped pipe is sealed.Two sections of AA ' and DD ' are tilted slightly, and promptly A ' and D ' are high slightly, liquid level and scale cloth on this disymmetrical tilting section, able to increase sensitivity.Also this back-shaped pipe can be made into the microscler level casket of entire container, also cloth is on AA ', DD ' two little inclined-planes that incline for scale and liquid level, and its inclined-plane is cambered surface.Also existing level tube and bubble can be extended at double.These back-shaped level tubes, level casket can be replaced the existing level tube among optics combined diagram level, the digit optical combined diagram level etc., make sensitiveer similar level meter.

Also available two back-shaped pipes intersect, and form the UNICOM level tube of four directions to four vertical tubes.

Above-mentioned back-shaped level tube and level casket can be made with various transparent materials.

Claims

1, the back-shaped level tube made from various transparent tube is characterized in that level tube is the back-shaped Communicating device of rectangle or other shapes, and topping up top, Communicating device bottom is air.

2, the level tube of request claim 1 record is fixed on made multipurpose level in the framework, it is characterized in that two vertical pipeline section scales are identical, mutual fully symmetry, and with the upper and lower Surface Vertical of framework, the upper and lower surface of framework is parallel to each other, and there is contour aiming point at the upper surface two ends.Change the direction of liquid level and reading demonstration with total reflection lens.

3, the level meter of the little request claim of inclining 1,2 records of AA ' and DD ' is characterized in that AA ', DD ' tilt for two sections a little, and the liquid level reading that shows on these two sections is sensitiveer.

4, the level casket of being changed a social system by the level tube of request claim 1 record is characterized in that the level casket is whole container, and AA ' and DD ' Duan Wei incline and be cambered surface.

5, level tube that will use now and bubble thereof is characterized in that by the level tube that principle of the present invention extends at double and forms axial dimension is more much longer than what use now, thereby much sensitive.

6, two back-shaped pipes of request claim 1 record cross one another the four directions that forms to UNICOM's level tube of four vertical tubes, it is characterized in that plane, two back-shaped pipe places is orthogonal.

7, optics combined diagram level, digit optical combined diagram level, the reading that uses request claim 1,3,4 and 5 level tubes of putting down in writing or level casket to make has level meter or other level meter of magnifier, it is characterized in that gas column and whole level tube or level casket are present employed all more much longer in the horizontal direction than these instruments, thus much sensitive.