JPS55128114A - Water pressure detector of depth gage - Google Patents
Water pressure detector of depth gageInfo
- Publication number
- JPS55128114A JPS55128114A JP3668679A JP3668679A JPS55128114A JP S55128114 A JPS55128114 A JP S55128114A JP 3668679 A JP3668679 A JP 3668679A JP 3668679 A JP3668679 A JP 3668679A JP S55128114 A JPS55128114 A JP S55128114A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- case
- diaphragm
- displacement
- water pressure
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/14—Housings
- G01L19/149—Housings of immersion sensor, e.g. where the sensor is immersed in the measuring medium or for in vivo measurements, e.g. by using catheter tips
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/008—Surveying specially adapted to open water, e.g. sea, lake, river or canal measuring depth of open water
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/0046—Fluidic connecting means using isolation membranes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Optics & Photonics (AREA)
Abstract
PURPOSE: To indicate the water depth digitally in an electronic device by blocking one end of an opening part to form a tightly closed space and detecting the fluctuation of pressure of a liquid or the like within the tightly closed space generated by the displacement of the diaphragm by receiving the water pressure from the outside using a pressure detecting element.
CONSTITUTION: A detector case 11 is mounted on the opening part of a watch case 1 through an air-tightening packing 12, and a protective cover 13 provided with a water permeating through hole 14 connecting water pressure is fitted to the inner surface of the case 11. To the inner surface of the case 11 there is secured a diaphragm 15, and a tightly sealed space 16 is formed. At the lower surface of the case 11 there is secured a ceramic base plate 17 to form the tightly sealed space 16, and the base plate 17 is provided with a pressure detecting element 19 and a vacuum space 20. The external pressure fluctuation is transmitted to the diaphragm 15 via the through hole 14, and the pressure of a noncompressive fluid 16 varies by the displacement of the diaphragm 15 to displace the element 19, and an electrical signal proportional to the quantity of the displacement thereof is derived from a terminal 18, and digitally indicated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3668679A JPS55128114A (en) | 1979-03-28 | 1979-03-28 | Water pressure detector of depth gage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3668679A JPS55128114A (en) | 1979-03-28 | 1979-03-28 | Water pressure detector of depth gage |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55128114A true JPS55128114A (en) | 1980-10-03 |
Family
ID=12476709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3668679A Pending JPS55128114A (en) | 1979-03-28 | 1979-03-28 | Water pressure detector of depth gage |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55128114A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000039533A1 (en) * | 1998-12-23 | 2000-07-06 | Flytec Ag | Water-tight measurement device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4843380A (en) * | 1971-10-01 | 1973-06-22 | ||
US3857283A (en) * | 1973-12-12 | 1974-12-31 | Us Navy | Depthometer |
-
1979
- 1979-03-28 JP JP3668679A patent/JPS55128114A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4843380A (en) * | 1971-10-01 | 1973-06-22 | ||
US3857283A (en) * | 1973-12-12 | 1974-12-31 | Us Navy | Depthometer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000039533A1 (en) * | 1998-12-23 | 2000-07-06 | Flytec Ag | Water-tight measurement device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5550131A (en) | Electronic transmitter | |
JPS53141074A (en) | Pressure measuring apparatus | |
JPS55128114A (en) | Water pressure detector of depth gage | |
DE3169644D1 (en) | Device for the very precise measurement of fluid pressure with indication of the measured pressure | |
JPS5782730A (en) | Pressure sensor | |
JPS5543476A (en) | Displacement measuring device | |
JPS59159083A (en) | Electronic timepiece with water depth-meter | |
ES8606636A1 (en) | Pressure or differential-pressure measuring device. | |
ES8606640A1 (en) | Pressure or differential-pressure measuring device. | |
JP2599307B2 (en) | Liquidproof pressure detector | |
FR2270587A1 (en) | Pressure differential ship log - has static and dynamic pressures sensor, transducer and integrator | |
CA2089819A1 (en) | Blood pressure measuring device | |
JPS5624509A (en) | Method and apparatus for monitoring decrease of wall thickness | |
JPS5483466A (en) | Induction type level gauge | |
FR2294433A1 (en) | Detector of pressure waves through wall - sensor inside liquid-filled enclosure ensuring transmission from wall to sensor | |
JPS5467480A (en) | Differential pressure detector | |
JPS56128422A (en) | Water gauge | |
JPS55160830A (en) | Pressure measuring device | |
JPS57165756A (en) | Hydrogen detector | |
JPS55114981A (en) | Object detection method and its unit | |
JPS5686314A (en) | Measuring device for water level of reactor | |
JPS5669528A (en) | Pressure transmission device | |
JPS57154878A (en) | Semiconductor sensor | |
JPS54155864A (en) | Liquid level gauge | |
JPS53107867A (en) | Measuring apparatus of angle of inclination |