DE735005C - Procedure for distance measurement in any media by rhythmically sending pulses - Google Patents

Procedure for distance measurement in any media by rhythmically sending pulses

Info

Publication number
DE735005C
DE735005C DED70152D DED0070152D DE735005C DE 735005 C DE735005 C DE 735005C DE D70152 D DED70152 D DE D70152D DE D0070152 D DED0070152 D DE D0070152D DE 735005 C DE735005 C DE 735005C
Authority
DE
Germany
Prior art keywords
pulse
rhythmically
procedure
distance measurement
pulses
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
DED70152D
Other languages
German (de)
Inventor
Dr Hansheinrich Rust
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.)
BETR SGESELLSCHAFT fur DRAHTL
Original Assignee
BETR SGESELLSCHAFT fur DRAHTL
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 BETR SGESELLSCHAFT fur DRAHTL filed Critical BETR SGESELLSCHAFT fur DRAHTL
Priority to DED70152D priority Critical patent/DE735005C/en
Application granted granted Critical
Publication of DE735005C publication Critical patent/DE735005C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06Systems determining the position data of a target
    • G01S15/08Systems for measuring distance only
    • G01S15/10Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S15/101Particularities of the measurement of distance

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Description

Verfahren zur Abstandsmessung in beliebigen Medien durch rhythmisches Senden von Impulsen Die Schallgeschwindigkeit in Wasser beträgt etwa 1500 m pro Sekunde. Erfolgen z. B. zehn Lotungen pro Sekunde, so beträgt der maximale Meßbereich 75 m. Der Vorteil einer so großen Lotfolge pro Zeiteinheit ist eine stehende Anzeige für den Beobachter, d. h. die zehn oder mehr in einer Sekunde aufeinanderfolgenden Lotungen sind für das Auge nicht mehr als einzelne Lottmgen zu erkennen, sondern lerwecken den Eindruck eines Zeigers, der sich kontinuierlich mit der sich ändernden Tiefe mitbewegt. Gleichzeitig wird eine große Meßgenauigkeit erzielt. Mit den bekannten Verfahren, bei denen zehn und mehr Lotungen in der Sekunde ausgeführt werden, kann man jedoch nicht Tiefen über 75 m loten. Beträgt z. B. die zu messende Tiefe 100 m, so erfolgt bei einer Impulsfolge von 10 Lotungen in der Sekunde die Echoanzeige, nachdem der Zeiger zum ersten Male den Nullpunkt der Skala überschritten hat.Method for distance measurement in any media by rhythmic Sending pulses The speed of sound in water is about 1500 m per Second. Success z. B. ten plumbing per second, the maximum measuring range is 75 m. The advantage of such a large plumbing sequence per unit of time is a standing display for the observer, d. H. the ten or more consecutive in one second The eye can no longer recognize soundings as individual lots, but rather They give the impression of a pointer that changes continuously with the changing Depth moves with it. At the same time, a high level of measurement accuracy is achieved. With the known Methods in which ten or more plumbing can be carried out per second However, you do not plumb depths over 75 m. Is z. B. the depth to be measured 100 m, the echo is displayed with a pulse train of 10 soundings per second, after the pointer has crossed the zero point of the scale for the first time.

Es würden also auf der Skala etwa 25 m angezeigt werden. Würden 500 m zu loten sein, so würden zwischen der sechsten und siebenten Lotung, also in dem Bereich zwisehen 450 und 525 m auf der Skala etwa 5o m angezeigt werden. Es vergeht also hierbei vom ersten Sendeimpuls ab bis zur Ankunft des zugehörigen Echos einmalig die Zeit von 2/S Sekunde. Dann folgen jedoch die Echos mit einer Geschwindigkeit von 10 pro Sekunde Um dies!en Nachteil zu vermeiden, werden bei derartigen Verfahren zur Abstandsmessung Abstände, welche größer sind als der durch den Ablauf einer Impulsfolge gegebene NVhert (z. B. größer als 75m bei einer Impulsfrequenz von 10 pro Sekunde und Wasser als Medium), unter Abzählung der Sendeimpulse zwischen dem ersten Sendeimpuls und dem ersten Echo in Verbindung mit der oben besehriehenen optischen Meßeinrichtung für schnelle Impulsfolge gemessen. Diese Abzählung erfolgt mittels einer geeigneten Zählvorrichtung; die z. B. als Grobmeßeinrichtung für den Absolutwert der Tiefe ausgebildet ist. - B-ei der zuletzt erwähnten Ausbildung der Zählvorrichtung werden die Impulse, die bei der Durchführung des Meßverfahrens zwischen der Aussendung seines Impulses und dem Empfang des diesem Sendeimpuls entsprechenden reflektierten Impulses ausgesendet werden, indirekt gezählt. So it would be about 25 m on the scale. Would 500 m to be plumbed, so would be between the sixth and seventh plumbing, i.e. in the The range between 450 and 525 m is displayed on the scale around 50 m. It goes away in this case once from the first transmission pulse until the arrival of the associated echo the time of 2 / S second. But then the echoes follow at one speed of 10 per second In order to avoid this disadvantage, such methods For distance measurement, distances that are greater than that caused by the expiry of a Pulse sequence given NVhert (e.g. greater than 75m with a pulse frequency of 10 per second and water as medium), counting the transmission pulses between the first transmission pulse and the first echo in connection with the above mentioned optical measuring device for fast pulse train measured. This counting takes place by means of a suitable counting device; the z. B. as a coarse measuring device for the Absolute value of the depth is formed. - For the last-mentioned training of the Counting device are the pulses that are used when performing the measuring process between sending out his impulse and the reception of this transmission pulse corresponding reflected pulse are emitted, counted indirectly.

Bei einer Lotfolge von Io pro Sekunde fallen bei Messungen von Tiefen, gleich oder größer als 75 m, die Werte 75 m, 150 m, 225 m, 300 m usw. mit dem Sendeimpuls zusammen. Um diese Werte zu erfassen. kann die Lotfolge von 10 pro Sekunde auf z. B. 11 umgeschaltet werden. With a plumbing sequence of Io per second, measurements of depths equal to or greater than 75 m, the values 75 m, 150 m, 225 m, 300 m etc. with the transmission pulse together. To capture these values. can the solder sequence from 10 per second to z. B. 11 can be switched.

Claims (1)

P A T E N T A N S P R Ü C H E : I. Verfahren zur Abstandsmessung in beliebigen Medien durch rhythmisches Senden von Impulsen, deren Rhythmus so groß ist, daß die einfallenden Echos bei der optischen Anzeigevorrichtung nicht mehr als einzelne aufeinanderfolgende Anzeigeerscheinungen wahrgenommen werden, sondern ein feststehendes Bild ergeben, dadurch gekennzeichnet, daß Abstände. welche größer sind als der durch dcr Ablauf einer Impulsfolge gegebene Vert (z. B. größer als 75 m bei einer Impuls frequenz von 10 pro Sekunde und \\7asscr als Medium. unter Abzählung der Sendeimpulse zwischen dem ersten Sendeimpuls bis zum ersten Echo in Verbindung mit der optischen Anzeigevorricht ung gemessen werden. P A T E N T A N S P R Ü C H E: I. Procedure for distance measurement in any medium by rhythmically sending impulses whose rhythm is so great is that the incident echoes no longer with the optical display device are perceived as individual successive advertisements, but rather result in a fixed image, characterized in that distances. which bigger are than the Vert given by the execution of a pulse train (e.g. greater than 75 m at a pulse frequency of 10 per second and \\ 7asscr as the medium. under Counting of the transmission pulses between the first transmission pulse and the first echo in Connection to the optical display device can be measured. Verfahren nach Anspruch I. dadurch gekennzeichnet. daß zur Iessung der Abstandswerte, die einen Betrag von v/2n @ 2 -; usw. haben (wobei v die Strahlungsgeschwindigkeit im gegebenen Medium und n die für andere Abstände verwendete Impulsfrequenz bedeutet, die Frequenz der Impulse ein wenig nach unten oder nach oben geändert wird. Method according to claim I. characterized. that for measurement the distance values that have a magnitude of v / 2n @ 2 -; etc. (where v is the radiation velocity in the given medium and n means the pulse frequency used for other distances, the frequency of the pulses is changed a little downwards or upwards.
DED70152D 1935-04-16 1935-04-16 Procedure for distance measurement in any media by rhythmically sending pulses Expired DE735005C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED70152D DE735005C (en) 1935-04-16 1935-04-16 Procedure for distance measurement in any media by rhythmically sending pulses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED70152D DE735005C (en) 1935-04-16 1935-04-16 Procedure for distance measurement in any media by rhythmically sending pulses

Publications (1)

Publication Number Publication Date
DE735005C true DE735005C (en) 1943-05-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DED70152D Expired DE735005C (en) 1935-04-16 1935-04-16 Procedure for distance measurement in any media by rhythmically sending pulses

Country Status (1)

Country Link
DE (1) DE735005C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919869C (en) * 1951-11-16 1954-11-04 Electroacustic Ges M B H Echo sounder device with device for setting a partial sounding range
DE1225522B (en) * 1959-02-23 1966-09-22 Leendert Meijer Method and device for echo sounder with sound pulses changeable sound sequence

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE919869C (en) * 1951-11-16 1954-11-04 Electroacustic Ges M B H Echo sounder device with device for setting a partial sounding range
DE1225522B (en) * 1959-02-23 1966-09-22 Leendert Meijer Method and device for echo sounder with sound pulses changeable sound sequence

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