SU84211A1 - Instrument for measuring and automatically recording the density of water at various depths - Google Patents

Description

The known instruments for measuring and automatically registering (for example, photographing) water intakes}) at bottom depths that work under hydrostatic pressure and are equipped with a differential liquid manometer sensor, have the disadvantage that their reading is correct. This is caused by the inevitable rocking of the device and its lowering on the cable.

In the proposed device, this disadvantage is eliminated by the fact that the flask of the manometer is made of W-shaped 11 forms. A horizontally disposed measuring capillary is connected to the middle vessel of the flask, and the two extreme vessels are connected to a vertically common tube located under the flask of the manometer. For eliminated errors from parallax when the readings of n) i6opa are photographed photographer rue. The horizontal part of the measuring capillary is shaped like a ring or a flat helix, on the oci of which the direction of the lens, the perpendicular to the circular plane of the ring, is located a photographic lens.

FIG. 1 shows a general view of the proposed device; in fig. 2 - section BUT A-A.

The device consists of a tube / connected to a liquid manometer. W-shaped, the outer symmetrically arranged pipes 2 of which have the same section, and the average manometric pipe 3 may have a different section. T he manometric pressure gauge 4, filling the knee of the pressure gauge, is indicated in the drawing by color. To the manometric tube 3 and 1 of the tube 5, it is closed above: with an elastic, sealed, bag 5 or flexible membrane. Such a pouch 6 is also present on the lower ribs of the tube. The cavity of the tube / below the manometer is filled with some kind of liquid that is mixed with a liquid O in the manometer. The tube 5 is filled with two liquids, one of which may be the same.

with the fluid in the tube I, and the other with a similar density and, in terms of the temperature expansion coefficient, with the first fluid, but not mixing with it, and having a different color from the first. When the tube 5, which in the curved horizontal annular part (Fig. 2), which is a measuring capillary with rum, is filled with a transparent material, is filled with liquids, the boundary between multicolored liquids is set within the measuring capillary. On the tube 5 or around it there is an aperture 7 for counting the location of contact between liquids. The diameters of the tubes must be different: the cross section of the tube 5 is smaller than the cross section of the manometric tube. As a consequence, a slight movement of the meniscus of the liquid in the manometer tube corresponds to the movement in the enlarged scale of the fluid boundary in the tube 5. The side chambers of the manometer 4 should be located symmetrically with respect to the middle manometric tube 3, the axis of which must coincide with the line drawn through the centers of the upper orifices and bottom of the tubes at the place of closing their points with glasses 6.

When the Product is lowered into the water, a pressure gauge will perceive the pressure caused by the difference between the total hydrostatic pressure created in the tubes filled with liquid and the counterpressure of the water column surrounding the device equal to the product of water density and the vertical distance of the peak values of the pressure in the upper and the lower ends of the tubes, the depressed pressure on the pressure gauge, which characterizes the difference in the average density of fluids in the tubes of the instrument and outside it, causes a change in the level of heavy fluid in the knees; a and measure 1 mc directly or in an enlarged scale, according to the displacement of the interface of multicolored liquids in an annular transparent tube 5.

For an instrument of such a device, independence (theoretical) of the density of the water surrounding the instrument is typical for its deviation from the vertical position. The cause of errors in the instrument readings is the pressure inequality in the upper and lower receivers, caused by the difference in the hydrodynamic back-up and the flow of parts near the subscribers. if the device works on leakage. These errors can be eliminated by placing the instrument in an obiip housing that surrounds both receivers and takes them away from water from CTpyii, allowing them to occur, while slowly mixing the water under the housing with external water. The entire device can be placed in a casing in the form of a pipe open from one end of the pipe, lowering the lower iris on the pipe 2. The vacuum created by suction of the lower end jets inside the tube will not affect the readings of the device, since this vacuum will affect both pressure receivers. n will not cause a deviating gauge. The fluctuations of the salinity of the water from the sea, Hrn in the absence of a water exchange flow, occur slowly; The presence of a water exchange between the cavity of the casing and the outer water 11 can be ensured by uniformly exchanged additional- and 1 holes in the walls of the casing, at a speed similar to the frequency of observation and measurement of the instruments.

In order to counteract the influence of the oscillation of the instrument on the cable under the water 11 and on the inertial slings acting on the column of fluids of 3 tubes and manometer, the movements of the reference meniscus can be removed in this system without loss of accuracy of the instrument, if the readings are The instrument is not frequent, and the density of seawater changes slowly. This is damped1 sop1estz.1 sts

-3-№ 84211 № 84211-4-narrowing of the tubes that transmit pressure to the pressure gauge, or for a liquefied liquid. The iribor device provides for the use of photographing for fixing the positions of the menie in tube 5 on the reference scale. There is an airtight chamber 8 in the device of the recorder of the floppy, through which the reading tube 5 passes. The hermetic chamber contains a film foto; ap11a), a clock mechanism and an electric battery, which is turned on by a clock mechanism and ignites electrically for a short time to get a photograph of the position meniscus in the tube on the reference n: feces. The peculiarity of the proposed design in terms of modifying the meniscus positions in tube 5 is the shape of the measuring cannle and scale, which allows avoiding narallake errors and errors caused by the refraction of the beam in the glass of the transparent tube, so that the CHHMaiOHiero aibiapaTa lens is positioned on the ring axis. The L-th invariance of the shape of the ring tube is varied. It is located at 1 chizon, flat, and the Annarat removes the view of the tube in the vertical direction perpendicular to the plane. light in col. 1) COI and nt noskuyus; p1ral pipe 5. Introduction and measurement 1. Instrument for measuring and automatic) e) the country; I.TOTHOCT; I water on different depths, working under the action of hydrostatic pressure and equipped with a sensor in the form of a differential liquid manometer, about T h and h HJ, ii and the fact that, with a price; 1yi fit; O1klone1pp: eio from the vertical position, when the device is oueked to considerable depths, the manometer flask is made W-shaped, with the middle vessel of which There is a measuring cannula located horizontally, and the two extreme vessels are attached to the obstruction of a ticking tube, which is opposite the iodine bulb of the manometer. 2. Instrument no. 1, on tl and h aa IO and e and the fact that, with the whole aim of avoiding errors from parallax when taking pictures of the instrument, the horizon; The lyuyuy part of the measuring capillary, with which the azapi note simenyatsya, given the shape of a ring or nloskoy spnrali, PA axis KOTOpoii in the direction perpendicular to the plane of the ring, located a photo lens. 3. In the device under item 1 НРИЛ:; enoenia of the outer casing to correct errors caused by the difference in the hydrodynamic backwater at the upper and lower ends of the manometer tubes during operation of the tube in the flow.