FR2696035A1 - Noise control circuit providing automatic cut-off - includes microphone and amplifier circuit with adjustable threshold allowing operation of cut-off relay above set noise level. - Google Patents

Noise control circuit providing automatic cut-off - includes microphone and amplifier circuit with adjustable threshold allowing operation of cut-off relay above set noise level. Download PDF

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Publication number
FR2696035A1
FR2696035A1 FR9211363A FR9211363A FR2696035A1 FR 2696035 A1 FR2696035 A1 FR 2696035A1 FR 9211363 A FR9211363 A FR 9211363A FR 9211363 A FR9211363 A FR 9211363A FR 2696035 A1 FR2696035 A1 FR 2696035A1
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FR
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Prior art keywords
equivalent
cut
ref
relay
characterized
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Withdrawn
Application number
FR9211363A
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French (fr)
Inventor
Pecheux Jean-Michel
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PECHEUX JEAN MICHEL
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PECHEUX JEAN MICHEL
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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10Amplitude; Power
    • G01H3/14Measuring mean amplitude; Measuring mean power; Measuring time integral of power

Abstract

The ambient noise detector includes a microphone built onto the circuit board and connected to an operational amplifier and transistor (T1). The acoustic sensitivity of the circuit is adjusted by a variable resistor (RA1) of 47 Megohms. The circuit controls the operation of a second transistor (T2) which excites the coil of a relay. The relay is used to control the power to external noise generating equipment. A timing circuit may be incorporated in the device. ADVANTAGE - Provides automatic limitation of noise level produced by concerts and other public events.

Description

La présente invention concerne un détecteur réglable de niveau sonore ambiant signalant et/ou permettant d'éviter par tout mécanisme extérieur la propagation des bruits rayonnants. The present invention relates to an adjustable sensor of ambient noise level signaling and / or to avoid any external mechanism by the propagation of the radiating noise.

Les organismes ou particuliers, les municipalités etc... possédant des salles recevant du public ont l'habitude de louer ces locaux à des associations, ou groupes pour des fêtes nocturnes ou non. Organizations or individuals, municipalities etc ... with the public receiving rooms usually rent these local associations or groups for night parties or not. Le bruit émanant de ces manifestations (fenêtres et portes éventuellement ouvertes) nuisent au voisinage immédiat. The noise from these events (any open windows and doors) hinder the immediate vicinity.

Jusqu'à ce jour, aucun dispositif ne permettait après mesure d'agir par l'intermédiaire d'un mécanisme extérieur sur la réduction ou l'arrêt du bruit à sa source. To date, no device allowed after able to act via an external mechanism on reducing or stopping the noise at its source.

L'invention permet de remédier à cet inconvénient.Il permet selon une première caractéristique de prendre et d'amplifier le son du local. The invention overcomes this allows inconvénient.Il according to a first feature to catch and amplify the sound of the room. En effet, par le micro incorporé au circuit imprimé, le son est amplifié par un ampli opérationnel Réf U AA 741 ou équivalent et le transistor T1 Réf BC 546 ou équivalent. Indeed, by the microphone incorporated in the printed circuit, the sound is amplified by an operational amplifier U Ref AA 741 or equivalent and the transistor T1 Ref BC 546 or equivalent.

Cette amplification permet de comparer le niveau sonore obtenu à celui de la résistance ajustable R Al ou équivalent de 47K=;. This amplification compares the sound level obtained to that of the adjustable resistance R or Al equivalent = 47K ;.

En fonction du résultat de la comparaison, si le son mesuré est supérieur à la valeur d'ajustage de la sensibilité sonore de la résistance ajustable R Al ou équivalent de 47K5-, il y a un déclenchement ou arrêt des dispositifs extérieurs grâce au transistor T2 Réf BC 546 ou équivalent qui exite la bobine du relais. Depending on the result of the comparison, if the sound measured is greater than the adjustment value of the sound sensitivity of the adjustable resistance R Al or equivalent 47K5-, there is a trigger stop or external devices through the transistor T2 Ref 546 BC or equivalent that exite the relay coil. Relais qui alimente la temporisation du temps de coupure C12 Réf HE 555 ou équivalent et l'alimentation du transfo T3 Réf BC 547 ou équivalent qui exite la bobine du relais qui coupe ou exite les mécanismes extérieurs.Il est à noter que le réglage de la temporisation est effectué par la résistance ajustable RA2 ou équivalent de 2,2 mégan-. Relay which supplies the timing of the Ref C12 HE off time 555 or equivalent and the power of the transformer T3 Ref BC 547 or equivalent which exite the relay coil which intersects or exite the extérieurs.Il mechanisms should be noted that the adjustment of the delay is effected by the adjustable resistor RA2 or equivalent of 2.2 mégan-.

Le schéma annexé illustre l'invention et formalise la description ci-dessus. The diagram illustrates the invention and appended formalizes the description above.

A titre d'exemple non limitatif, le circuit rmprimé se trouve enfermé dans un boîtier de 15 cm X 8 cm, épaisseur 25 m/m. By way of nonlimiting example, the rmprimé circuit is enclosed in a casing of 15 cm x 8 cm, thickness 25 m / m.

Le dispositif est spécialement destiné aux salles recevant du public mais peut être adapté à tous locaux bruyants. The device is specially designed for public assembly facilities but can be adapted to all noisy rooms.

Claims (5)

    REVENDICATIONS
  1. 1) Dispositif qui concerne un détecteur réglable de niveau sonore ambiant signalant et/ ou permettant d'éviter par tout mécanisme extérieur la propagation des bruits rayonnants et caractérisé par la prise et l'amplification du son du local. 1) Device which relates to an adjustable sensor of ambient noise level signaling and / or to avoid any external mechanism by the propagation of the radiating noise and characterized by taking and amplifying the sound local. Par le micro oncorporé au circuit imprimé, le son est amplifié par un ampli opérationnel Réf U AA 741 ou équivalent et le transistor T1 Réf Oncorporé by the microphone to the PCB, the sound is amplified by an operational amplifier U Ref AA 741 or equivalent and the transistor T1 Ref
    BC 546 ou équivalent. BC 546 or equivalent.
  2. 2) Dispositif selon la revendication 1 caractérisé par l'ajustage de la sensibilité sonore par la résistance ajustable RA1 ou équivalent de 47 mégasu 2) Device according to claim 1 characterized in adjusting the sound sensitivity by the adjustable resistor RA1 or equivalent 47 mégasu
  3. 3) Dispositif selon la revendication 2 caractérisé par le déclenchement ou l'arrêt des dispositifs extérieurs, par le déclenchement du transistor T2 Réf 3) Device according to claim 2 characterized by the onset or cessation of external devices, for the triggering of the transistor T2 ref
    BC 546 ou équivalent qui exite la bobine de relais, Relais qui alimente la temporisation du temps de coupure C12 réf NE 555 ou équivalent. BC 546 or equivalent, exite the relay coil, which feeds the relay timer C12 ref cutoff time NE 555 or equivalent.
  4. 4) Dispositif selon la revendication 2 carctérisé par le réglage de la temporisation à l'aide de la résistance ajustable RA2 ou équivalent de 2,2 oméga ~. 4) Device according to claim 2 carctérisé by setting the timing using the adjustable resistor RA2 or equivalent of 2.2 ~ omega.
  5. 5) Dispositif selon la revendication 3 caractérisé par le déclenchement du transistor T3 Réf BC 547 ou équivalent qui exite la bobine du relais qui coupe ou exite les mécanismes extérieurs. 5) Device according to claim 3, characterized by the triggering of transistor T3 Ref BC 547 or equivalent which exite the relay coil which intersects or exite external mechanisms.
FR9211363A 1992-09-21 1992-09-21 Noise control circuit providing automatic cut-off - includes microphone and amplifier circuit with adjustable threshold allowing operation of cut-off relay above set noise level. Withdrawn FR2696035A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9211363A FR2696035A1 (en) 1992-09-21 1992-09-21 Noise control circuit providing automatic cut-off - includes microphone and amplifier circuit with adjustable threshold allowing operation of cut-off relay above set noise level.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9211363A FR2696035A1 (en) 1992-09-21 1992-09-21 Noise control circuit providing automatic cut-off - includes microphone and amplifier circuit with adjustable threshold allowing operation of cut-off relay above set noise level.

Publications (1)

Publication Number Publication Date
FR2696035A1 true true FR2696035A1 (en) 1994-03-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9211363A Withdrawn FR2696035A1 (en) 1992-09-21 1992-09-21 Noise control circuit providing automatic cut-off - includes microphone and amplifier circuit with adjustable threshold allowing operation of cut-off relay above set noise level.

Country Status (1)

Country Link
FR (1) FR2696035A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8815143B2 (en) 2006-04-28 2014-08-26 Envisiontec Gmbh Method for producing a three-dimensional object by means of mask exposure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8815143B2 (en) 2006-04-28 2014-08-26 Envisiontec Gmbh Method for producing a three-dimensional object by means of mask exposure

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