JPS578406A - Portable water depth measuring instrument for diver - Google Patents

Portable water depth measuring instrument for diver

Info

Publication number
JPS578406A
JPS578406A JP8305080A JP8305080A JPS578406A JP S578406 A JPS578406 A JP S578406A JP 8305080 A JP8305080 A JP 8305080A JP 8305080 A JP8305080 A JP 8305080A JP S578406 A JPS578406 A JP S578406A
Authority
JP
Japan
Prior art keywords
water
light emission
voltage
sensor part
varied
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
Application number
JP8305080A
Other languages
Japanese (ja)
Inventor
Yukio Asano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Corp
Hattori Tokeiten KK
Original Assignee
Seiko Corp
Hattori Tokeiten KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Corp, Hattori Tokeiten KK filed Critical Seiko Corp
Priority to JP8305080A priority Critical patent/JPS578406A/en
Publication of JPS578406A publication Critical patent/JPS578406A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • G01C5/06—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels by using barometric means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/02—Detectors of external physical values, e.g. temperature

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE:To easily execute a measurement of water depth in the water, by providing a sensor part which is finely deformed by hydraulic pressure, on a part of a watertight and pressure resisting case, substituting its deformation to a variation of the quantity of electricity, executing its A-D conversion, and making it display by means of light emission. CONSTITUTION:A sensor part 2 which is finely deformed by external pressure is provided on a part of a wristwatch type waterproof and pressure resisting case 1, and in its inside is provided an element whose quantity of electricity is varied by voltage sensing. As for a voltage sensing element in an instance in the figure, a high resistance 4 wound around a bobbin, which has been blocked on the ridge side of a sensor part 2 is slided by a contact 5, and voltage is varied analogically. As for a piezoelectric conversion element, a quartz bar, a ceramic capacitor, etc. can be used. This voltage variation is digitized by an A/D converting part 6, and is displayed by a light emission element 8 such as a light emission diode, etc. In this way, depth of water at the present position can be known easily even in a dark place in the water, by putting this instrument on the wrist like a wristwatch.
JP8305080A 1980-06-19 1980-06-19 Portable water depth measuring instrument for diver Pending JPS578406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8305080A JPS578406A (en) 1980-06-19 1980-06-19 Portable water depth measuring instrument for diver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8305080A JPS578406A (en) 1980-06-19 1980-06-19 Portable water depth measuring instrument for diver

Publications (1)

Publication Number Publication Date
JPS578406A true JPS578406A (en) 1982-01-16

Family

ID=13791357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8305080A Pending JPS578406A (en) 1980-06-19 1980-06-19 Portable water depth measuring instrument for diver

Country Status (1)

Country Link
JP (1) JPS578406A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918415A (en) * 1982-07-22 1984-01-30 Seiko Epson Corp Electronic type portable underwater environment detecting device
JPH054087U (en) * 1991-07-02 1993-01-22 株式会社タンゴ Watches

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857283A (en) * 1973-12-12 1974-12-31 Us Navy Depthometer
JPS5655214A (en) * 1979-10-11 1981-05-15 Akinori Miyazono Rooffboard uniting device in production of gargoyle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857283A (en) * 1973-12-12 1974-12-31 Us Navy Depthometer
JPS5655214A (en) * 1979-10-11 1981-05-15 Akinori Miyazono Rooffboard uniting device in production of gargoyle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5918415A (en) * 1982-07-22 1984-01-30 Seiko Epson Corp Electronic type portable underwater environment detecting device
JPH0452403B2 (en) * 1982-07-22 1992-08-21 Seiko Epson Corp
JPH054087U (en) * 1991-07-02 1993-01-22 株式会社タンゴ Watches

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