EP0545224B1 - Auslösevorrichtung für einen Zünder - Google Patents

Auslösevorrichtung für einen Zünder Download PDF

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Publication number
EP0545224B1
EP0545224B1 EP92119974A EP92119974A EP0545224B1 EP 0545224 B1 EP0545224 B1 EP 0545224B1 EP 92119974 A EP92119974 A EP 92119974A EP 92119974 A EP92119974 A EP 92119974A EP 0545224 B1 EP0545224 B1 EP 0545224B1
Authority
EP
European Patent Office
Prior art keywords
counter
release
fed
integration
release device
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 - Lifetime
Application number
EP92119974A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0545224A2 (de
EP0545224A3 (en
Inventor
Franz-Jürgen Riewe
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.)
Honeywell GmbH
Original Assignee
Honeywell GmbH
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 Honeywell GmbH filed Critical Honeywell GmbH
Publication of EP0545224A2 publication Critical patent/EP0545224A2/de
Publication of EP0545224A3 publication Critical patent/EP0545224A3/de
Application granted granted Critical
Publication of EP0545224B1 publication Critical patent/EP0545224B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C13/00—Proximity fuzes; Fuzes for remote detonation
    • F42C13/06—Proximity fuzes; Fuzes for remote detonation operated by sound waves

Definitions

  • the present invention relates to a trigger device for a detonator according to the preamble of claim 1.
  • Such a trigger device is such.
  • seismic signals obtained from ground vibrations are converted into electrical signals and, after amplitude evaluation and frequency filtering, fed to a timing element which only allows the sensor signal to be switched through to an ignition device if the sensor signals have been present for a predetermined, adjustable period of time. It is already provided there that the quantity of signals stored in the timing element can be deleted or integrated again in the event that the quantity of signals required for target detection is not reached within the time and amplitude window.
  • a similar device is shown in DE-A-15 78 478. Acceleration signals resulting from changes in position are integrated there by an integrating element, and a signal which triggers the ignition of a mine is only output when the integrated variable exceeds a predetermined threshold value.
  • Means are provided to make the charge of the integrator independent of the amount of acceleration. In order to avoid that the integration of the variable, which is independent of the magnitude of the acceleration, increases to previous integration values, it is further provided that the integrated variable is deleted when the threshold value is not reached.
  • an igniter is known in which it is ensured by mechanical means that it returns to its original state when detected load pulses have an interruption that is greater than a predetermined period of time.
  • a microphone 10 detects the noise spectrum of a passing noise source.
  • the detected signals are fed to an analog bandpass amplifier 12 which at the same time performs dynamic compression of the detected signals.
  • the filtered out, amplified and dynamically compressed signals are applied to a zero crossing detector 14, which alone filters out the zero crossings of the signal and supplies a corresponding pulse signal to a digital bandpass filter 16, which is synchronized by an external oscillator 18.
  • the output of the digital bandpass filter 16 acts on a pause counter 20 (e.g. on its reset input) as long as frequency components within the specified bandwidth are present in the detected signal.
  • the pause counter 20 is acted upon by the oscillator 18 at its input.
  • a trigger counter 22 is also acted upon by the oscillator 18 at its input.
  • the pause counter 20 in turn acts on the result of the trigger counter 22 (e.g. on its reset input) in the case of predetermined gaps or pauses.
  • the bandpass amplifier 12 outputs corresponding signals at its output and the Zero crossing detector 14 converts this signal into a digital frequency spectrum.
  • the digital bandpass filter 16 outputs a reset signal at its output, which keeps the pause counter 20 in its reset state, so that it is not able to reset the trigger counter 22. If the required frequency spectrum is therefore present for a sufficiently long time, the trigger counter 22 is counted up by the oscillator 18 up to its counting capacity and supplies a corresponding alarm or wake-up signal at its output.
  • the pause counter 20 is no longer reset by the digital bandpass filter 16 and can reach its counting capacity in the case where the pause has been present for a predefinable period of time. In this case, the pause counter 20 resets the trigger counter 22 and cannot generate the wake-up or alarm signal.
  • the circuit described above can also be constructed analogously in that two analog timers, such as capacitors of different sizes, e.g. B. a constant current source.
  • the charging of one analog timer (pause element) is blocked as long as the frequency component sought is present in the detected signal, so that the other timer element (triggering element) can reach a predetermined threshold value if no pause occurs in the detected signal. If there is a pause in the detected signal, the analog pause element reaches its threshold value before the triggering element reaches its threshold value and causes the same to discharge.
  • the integration time of the pause element is shorter than the integration time of the trigger element.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Electronic Switches (AREA)
EP92119974A 1991-12-05 1992-11-21 Auslösevorrichtung für einen Zünder Expired - Lifetime EP0545224B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4140141A DE4140141C1 (enrdf_load_stackoverflow) 1991-12-05 1991-12-05
DE4140141 1991-12-05

Publications (3)

Publication Number Publication Date
EP0545224A2 EP0545224A2 (de) 1993-06-09
EP0545224A3 EP0545224A3 (en) 1993-10-13
EP0545224B1 true EP0545224B1 (de) 1995-04-05

Family

ID=6446360

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119974A Expired - Lifetime EP0545224B1 (de) 1991-12-05 1992-11-21 Auslösevorrichtung für einen Zünder

Country Status (2)

Country Link
EP (1) EP0545224B1 (enrdf_load_stackoverflow)
DE (2) DE4140141C1 (enrdf_load_stackoverflow)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1578478C1 (de) * 1967-07-04 1977-04-21 Honeywell Gmbh Zuender fuer Minen
US4081785A (en) * 1974-02-13 1978-03-28 The United States Of America As Represented By The Secretary Of The Air Force Dual class amphibious target discriminator
DE2838806A1 (de) * 1978-09-06 1980-03-20 Dynamit Nobel Ag Schwingungen uebertragendes system fuer zuendeinrichtungen
DE3011366A1 (de) * 1980-03-25 1981-10-01 Messerschmitt-Bölkow-Blohm GmbH, 8000 München Selektive ausloesung eines zuenders von bodenwaffen
US5007032A (en) * 1990-06-08 1991-04-09 Honeywell Inc. Acoustic alert sensor

Also Published As

Publication number Publication date
DE4140141C1 (enrdf_load_stackoverflow) 1992-12-17
EP0545224A2 (de) 1993-06-09
DE59201838D1 (de) 1995-05-11
EP0545224A3 (en) 1993-10-13

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