DE339996C - Electro-hydraulic log - Google Patents

Electro-hydraulic log

Info

Publication number
DE339996C
DE339996C DE1920339996D DE339996DD DE339996C DE 339996 C DE339996 C DE 339996C DE 1920339996 D DE1920339996 D DE 1920339996D DE 339996D D DE339996D D DE 339996DD DE 339996 C DE339996 C DE 339996C
Authority
DE
Germany
Prior art keywords
electro
rheostat
hydraulic
expansion column
housed
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.)
Expired
Application number
DE1920339996D
Other languages
German (de)
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.)
MIJ FAKIR NV
Original Assignee
MIJ FAKIR NV
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 MIJ FAKIR NV filed Critical MIJ FAKIR NV
Application granted granted Critical
Publication of DE339996C publication Critical patent/DE339996C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
    • G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
    • G01P5/16—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid using Pitot tubes, e.g. Machmeter

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Description

Elektrisch-hydraulisches Log. Die Erfindung betrifft eine Vorrichtung zum Messen der Schiffsgeschwindigkeit, bei der die Ausdehnung einer unter der Differenzwirkung des hydraulischen und des hydrostatischen Druckes stehenden Ausdehnungssäule (eines Balgens o. dgl.) auf elektrischem Wege angezeigt wird. Das Neue besteht darin, daß die hydraulische Vorrichtung und der Rheostat in einem mittels einer Leine nachgeschleppten Schwimmkörper untergebracht sind, so daß der Wasserdruck an einer möglichst wirbelfreien Stelle gemessen werden kann.Electro-hydraulic log. The invention relates to a device for measuring the ship's speed at which the expansion of one under the differential effect the hydraulic and hydrostatic pressure standing expansion column (one Bellows o. The like.) Is indicated by electrical means. The new thing is that the hydraulic device and the rheostat in one towed by means of a line Floats are housed so that the water pressure is as free from eddies as possible Body can be measured.

Die nette Einrichtung besteht im wesentlichen aus einem. rohrförmigen Körper, der in drei Teile zerfällt: eine, hydraulische Kammer, eine hydrostatische Kammer -und eine gegen diese abgedichtete Kammer, die einen veränderlichen elektrischen Widerstand (Rheostaten) einschließt. Von der Schiffsgeschwindigkeit hängt der Druckunterschied zwischen der hydraulischen :und der hydrosthtischen Kammer ab. Gemäß diesem Druckunterschied stellt sich der Rheostat ein. Das Instrument wird von einem zweidrähtigen Kabel im Wasser nachgeschleppt, das den jeweiligen elektrischen Widerstand vom Schiff aus in jedem Augenblick abzulesen .gestattet. Aus einer Tabelle ist dann die jeweilige Geschwindigkeit zu entnehmen.The nice facility consists essentially of one. tubular Body that breaks down into three parts: one, hydraulic chamber, one hydrostatic Chamber - and a chamber sealed against this, which has a variable electrical Includes resistance (rheostats). The pressure difference depends on the speed of the ship between the hydraulic: and the hydrostatic chamber. According to this pressure difference the rheostat adjusts itself. The instrument is powered by a two-wire cable dragged in the water, which is the respective electrical resistance of the ship can be read off at any moment. The respective table is then taken from a table Take speed.

Ein so gebautes Instrument ist in der bei; liegenden Zeichnung schematisch im Längsschnitt dargestellt. Die auf dem Schiff befindliche Einrichtung ist hier nicht' beschrieben.An instrument built in this way is in the at; lying drawing schematically shown in longitudinal section. The facility on the ship is here not 'described.

Das hintere Ende des rohrförmigen Schwimmkörpers r ist offen und bildet zusammen mit der Ausdehnungssäule 3 die hydraulische Kammer 2. Der mittlere Teil ist durch Löcher q. für das Seewasser zugänglich und bildet die hydrostatische Kammer. Sie ist :durch eine Beutelwand 5 von der folgenden-Kammer wasserdichtgetrennt. Durch die Beutelwand 5 geht ein Stift von der Ausdehnungssäule 3 nach dem einen Ende einer Nürnberger Schere 8, die bei 7 .ihren Stütz-Punkt hat. Der Stift ist mittels der CSse 6 geführt.The rear end of the tubular float r is open and forms together with the expansion column 3, the hydraulic chamber 2. The middle part is through holes q. accessible to the sea water and forms the hydrostatic chamber. It is: separated from the following chamber by a bag wall 5 in a watertight manner. By the bag wall 5, a pin goes from the expansion column 3 to one end of a Nuremberg scissors 8, which have their support point at 7th. The pen is by means of the CSse 6 led.

Von idem anderen Ende der Schere 8 führt ein Stift g zu dem Schieber to des Rheostaten r r, der durch eine Isolierhaut 1a gegen die Rohrwand abgedichtet ist. Auf das vordere Ende des Körpers r ist .die durchbohrte Kappe 1ß aufgeschraubt, die das Kabel r9 mittels .des Widerlagers 18 auf die Kontakte 16, 17 preßt, die auf den Polen r¢, 15 des Rheostaten schleifen.From the other end of the scissors 8, a pin g leads to the slide to of the rheostat r r, which is sealed against the pipe wall by an insulating skin 1a is. The pierced cap 1ß is screwed onto the front end of the body r, which presses the cable r9 onto the contacts 16, 17 by means of the abutment 18, which on the poles r ¢, 15 of the rheostat.

Claims (2)

PATENTANSPRÜCHE: r. Elektrisch-hydraulisches Log, dadurch gekennzeichnet, daß die Ausdehnungssäule, deren eine Seite der Saug wirkung des zurückbleibenden Wassers unterliegt, und deren andere Seite dem hydrostatischen Druck ausgesetzt ist, :und der durch 'den Druckunterschied beeinfiußte Rheostat in einem mittels Leine nachgeschleppten Schwimmkörpers untergebracht sind. PATENT CLAIMS: r. Electro-hydraulic log, characterized that the expansion column, one side of which is the suction effect of the remaining Water, and the other side exposed to hydrostatic pressure is: and influenced by the pressure difference Rheostat are housed in a float towed by a line. 2. Log nach Anspruch r, bestehend aus einem Schwimmkörper, der in drei Kammern geteilt ist, von denen .die erste und die zweite durch eine Ausdehnungssäule getrennt sind, deren Längenänderung sich auf einen in der dritten Kammer untergebrachten Rheostaten überträgt, der durch ein Meßkabel mit dem Schiff verbunden ist.2. Log according to claim r, consisting of a floating body which is divided into three chambers of which the first and second are separated by an expansion column, whose change in length is due to a rheostat housed in the third chamber transmits, which is connected to the ship by a measuring cable.
DE1920339996D 1920-06-22 1920-06-22 Electro-hydraulic log Expired DE339996C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE339996T 1920-06-22

Publications (1)

Publication Number Publication Date
DE339996C true DE339996C (en) 1921-08-27

Family

ID=6224230

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920339996D Expired DE339996C (en) 1920-06-22 1920-06-22 Electro-hydraulic log

Country Status (1)

Country Link
DE (1) DE339996C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623383A (en) * 1945-04-07 1952-12-30 Bendix Aviat Corp Apparatus for calibrating the airspeed indicator of aircraft
US4212191A (en) * 1979-03-15 1980-07-15 The United States Of America As Represented By The Secretary Of The Army Differential pressure gauge
EP0409178A2 (en) * 1989-07-18 1991-01-23 Nord-Micro, Elektronik Feinmechanik Ag Sensor and method for measuring the relative speed of an air or gasflow of transsonic or supersonic speed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623383A (en) * 1945-04-07 1952-12-30 Bendix Aviat Corp Apparatus for calibrating the airspeed indicator of aircraft
US4212191A (en) * 1979-03-15 1980-07-15 The United States Of America As Represented By The Secretary Of The Army Differential pressure gauge
EP0409178A2 (en) * 1989-07-18 1991-01-23 Nord-Micro, Elektronik Feinmechanik Ag Sensor and method for measuring the relative speed of an air or gasflow of transsonic or supersonic speed
EP0409178A3 (en) * 1989-07-18 1991-03-20 Nord-Micro, Elektronik Feinmechanik Ag Sensor and method for measuring the relative speed of a flowing medium

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