SU1500891A1 - Pressure indicator - Google Patents

Abstract

The invention relates to a measurement technique, namely to pressure indicators of hydropneumatic systems, and can be used in underwater operations for measuring the depth of immersion. The purpose of the invention is to improve ease of operation. In case 1, a screen 2 is installed in which a curved channel 3 is made. The distance between the turns 10 of channel 3 is not greater than the width of its cross section. When pressure is applied to the membrane 7, the colored liquid 8 flows from cavity 6 to channel 3, forming a color spot, the value of which is a measure of the measured pressure. 6 Il.

Description

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FIG.

The invention relates to a measurement technique, namely to pressure indicators of hydropneumatic systems, and may find application in the performance of underwater operations for the depth of a dive.

The purpose of the invention is to increase the convenience of operation.

Figure 1 shows the indicator pressure, NIN, a general view; Fig. 2 shows a view A in Fig. 1; and in Lig.Z shows variants of the shape of the channel section; figure 4 is the same, the shape of the turns of the spiral channel in figure 5 is the same, the scale; Fig. 6 is the same as Fig. 2 at the time of pressure measurement.

The device consists of a body I, installed on it a transparent

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the screen 2, in which the pressure curve is made; the pressure is determined by the digital spiral channel 3 with the spiral-like turns. The beginning of channel 4 is located in the central part of the screen. The channel can be made in the form of a capillary with a cross section: round, triangular, rectangular, etc. (fig.Z). The shape of the turns of the helix can also be different: round, triangular, rectangular (figure 4). The beginning of channel 4 is connected by a hole 5 to a cavity 6 formed by a membrane 7 and a screen 2 and filled with colored liquid 8. The other end of the cable is connected to an additional cavity 9. filled with gas. The distance between the turns 10 of the spiral channel 3 should not be greater than the width of its cross section 1-1. On one side of the screen facing the body, an opaque coating 12 is applied, and the other has a scale 13 in the form of concentric circles 14. The shape of the figures of the scale can be different and should

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Claims (1)

flat marks on the scale. Formula and inventions : A pressure indicator containing a body with a transparent screen and an elastic membrane installed in the body with a gap relative to the screen, while the body cavity between the membrane and the screen is filled with colored liquid, which is different in that it is easy to operate. completely filled with liquid, and in a transparent screen there is a curved channel with spiral turns and an additional cavity, with the beginning of the channel located in the central part of the screen and communicating with the body cavity, and the end of the channel - an additional cavity raspolozhen- - hydrochloric periphery of the screen, the distance between adjacent turns of the channel, where b - the width of the channel cross section. repeat the shape of the turns of the spiral channel 3. The device works as follows. When pressure is applied to the membrane 7, it bends and forces the colored liquid 8 out of the cavity 6 through the opening 5 into the channel 3, filling part of it. In this case a color spot is formed on the screen (Fig. 6). As the pressure of the measured medium increases, the membrane 7 bends by a large amount and displaces a large volume of the colored fluid 8, due to which the color spot increases and its size will be a measure of the measured pressure, which is determined on a scale of 13. Refined ve The pressure is determined by the digit flat marks on the scale. Formula and inventions The pressure indicator, comprising a housing with a transparent screen and an elastic membrane installed in the housing with a gap relative to the shield, wherein the housing cavity between the membrane and the shield is filled with a colored liquid, characterized in that, in order to improve ease of operation, the cavity is filled with liquid completely, and in a transparent screen there is a curvilinear channel with spiral turns and an additional cavity, with the beginning of the channel located in the central part of the screen and communicating with the body cavity, and the end of the channel - With an additional cavity located on the periphery of the screen, with the distance between adjacent turns of the channel, where b is the width of the cross section of the channel. sree Vida FIG. 2 Fig.Z 3.00 0.50 SriE.5 Buffa Cf) Uff-6