JPS55143423A - Measuring instrument for fine difference in pressure - Google Patents
Measuring instrument for fine difference in pressureInfo
- Publication number
- JPS55143423A JPS55143423A JP5150779A JP5150779A JPS55143423A JP S55143423 A JPS55143423 A JP S55143423A JP 5150779 A JP5150779 A JP 5150779A JP 5150779 A JP5150779 A JP 5150779A JP S55143423 A JPS55143423 A JP S55143423A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- difference
- channel
- liquid level
- shaped tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
PURPOSE: To make it possible to measure a fine difference in pressure of a liquid between two different points, by measuring electrically and continuously a difference in liquid level caused by a difference in pressure inside a channel-shaped tube applied with pressure at two different points.
CONSTITUTION: Water in channel-shaped tube 1 is so sealed that when the pressure is balanced, the liquid level will be at position 14, and stoppers 4 and electrodes 31W34 held by spacers 5 are inserted into the channel-shaped tube. Then, electrodes 31W34 are applied with an AC voltage from transformer 11 and to the secondary side of the transformer, potentiometer 2 and AC voltmeter 13 are connected, constituting a bridge circuit. When a difference between pressures P1 and P2 applied to pressure-applied holes 7 and 8 of the channel-shaped tube causes difference H in liquid level, electrodes 31 and 32, and 33 and 34 differ in conductive resistance, and consequently the bridge circuit is unbalanced, so that AC voltemeter 13 will indicate a value in proportion to difference H in liquid level.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5150779A JPS55143423A (en) | 1979-04-27 | 1979-04-27 | Measuring instrument for fine difference in pressure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5150779A JPS55143423A (en) | 1979-04-27 | 1979-04-27 | Measuring instrument for fine difference in pressure |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55143423A true JPS55143423A (en) | 1980-11-08 |
Family
ID=12888902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5150779A Pending JPS55143423A (en) | 1979-04-27 | 1979-04-27 | Measuring instrument for fine difference in pressure |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55143423A (en) |
-
1979
- 1979-04-27 JP JP5150779A patent/JPS55143423A/en active Pending
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