FR2486236A1 - Sonometre d'alarme - Google Patents

Sonometre d'alarme Download PDF

Info

Publication number
FR2486236A1
FR2486236A1 FR8014882A FR8014882A FR2486236A1 FR 2486236 A1 FR2486236 A1 FR 2486236A1 FR 8014882 A FR8014882 A FR 8014882A FR 8014882 A FR8014882 A FR 8014882A FR 2486236 A1 FR2486236 A1 FR 2486236A1
Authority
FR
France
Prior art keywords
sound level
light
sound
silence
given duration
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.)
Granted
Application number
FR8014882A
Other languages
English (en)
French (fr)
Other versions
FR2486236B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
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.)
ZEYER GILBERT
Original Assignee
ZEYER GILBERT
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 ZEYER GILBERT filed Critical ZEYER GILBERT
Priority to FR8014882A priority Critical patent/FR2486236A1/fr
Publication of FR2486236A1 publication Critical patent/FR2486236A1/fr
Application granted granted Critical
Publication of FR2486236B1 publication Critical patent/FR2486236B1/fr
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H3/00—Measuring characteristics of vibrations by using a detector in a fluid
    • G01H3/10—Amplitude; Power
    • G01H3/12—Amplitude; Power by electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)
FR8014882A 1980-07-02 1980-07-02 Sonometre d'alarme Granted FR2486236A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8014882A FR2486236A1 (fr) 1980-07-02 1980-07-02 Sonometre d'alarme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8014882A FR2486236A1 (fr) 1980-07-02 1980-07-02 Sonometre d'alarme

Publications (2)

Publication Number Publication Date
FR2486236A1 true FR2486236A1 (fr) 1982-01-08
FR2486236B1 FR2486236B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1984-09-28

Family

ID=9243834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8014882A Granted FR2486236A1 (fr) 1980-07-02 1980-07-02 Sonometre d'alarme

Country Status (1)

Country Link
FR (1) FR2486236A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509189A (en) * 1983-06-08 1985-04-02 Simpson Buddy B Sound level indicating devices
GB2372128A (en) * 2000-10-30 2002-08-14 Gardiner Technology Ltd Alarm housing for an alarm having a visual warning device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304368A (en) * 1963-05-10 1967-02-14 Joseph L Ford Noise level indicator for school bus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3304368A (en) * 1963-05-10 1967-02-14 Joseph L Ford Noise level indicator for school bus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EXBK/79 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4509189A (en) * 1983-06-08 1985-04-02 Simpson Buddy B Sound level indicating devices
GB2372128A (en) * 2000-10-30 2002-08-14 Gardiner Technology Ltd Alarm housing for an alarm having a visual warning device
GB2372128B (en) * 2000-10-30 2004-07-28 Gardiner Technology Ltd Housing for alarm device

Also Published As

Publication number Publication date
FR2486236B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1984-09-28

Similar Documents

Publication Publication Date Title
US4053785A (en) Optical smoke detector with smoke effect simulating means
CA1045227A (en) Smoke detector
US4349783A (en) Ground isolated electrostatic field detector
US5745040A (en) Outdoor alerting device for smoke alarms
US5886631A (en) Barking dog sound alarm system
JPS5911864B2 (ja) 漏血検知装置
US4346374A (en) Classroom noise alarm
FR2486236A1 (fr) Sonometre d'alarme
FR2546652A1 (fr) Banc d'essai pour chaines electroacoustiques et notamment pour appareils de correction auditive
FR2637699A1 (fr) Dispositif pour indiquer une quantite restante de parties enregistrables d'un materiau d'enregistrement dans un appareil photographique
US7312706B1 (en) Microprocessor operated early warning ashtray
CN208156830U (zh) 一种报警警示牌
KR100881645B1 (ko) 레이저 포인터를 이용한 말하는 학습 장치
US20180025612A1 (en) Electric meter apparatus with light-blinking function
US2282253A (en) Photometer
USRE22231E (en) Photographic exposure meter
US11348438B1 (en) Carbon monoxide detection system
FR2657957A1 (fr) Dispositif de mesure du defilement d'une chaine.
CA2260627C (en) Barking dog sound alarm system
US2490639A (en) Darkness alarm
GB2366943A (en) Baby monitoring unit indicating sound amplitude via variable light intensity
US20010000976A1 (en) Reflexive light source detector
CH669274A5 (fr) Dispositif d'alarme comprenant au moins un capteur.
US20030164454A1 (en) Portable UV detector with simple operation
JPH11328553A (ja) 火災警報器

Legal Events

Date Code Title Description
ST Notification of lapse
AR Application made for restoration
BR Restoration of rights