FR2162577B1 - - Google Patents

Info

Publication number
FR2162577B1
FR2162577B1 FR7243716A FR7243716A FR2162577B1 FR 2162577 B1 FR2162577 B1 FR 2162577B1 FR 7243716 A FR7243716 A FR 7243716A FR 7243716 A FR7243716 A FR 7243716A FR 2162577 B1 FR2162577 B1 FR 2162577B1
Authority
FR
France
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
FR7243716A
Other versions
FR2162577A1 (fr
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.)
MICROWAVE ELECTRONIC
Original Assignee
MICROWAVE ELECTRONIC
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 MICROWAVE ELECTRONIC filed Critical MICROWAVE ELECTRONIC
Publication of FR2162577A1 publication Critical patent/FR2162577A1/fr
Application granted granted Critical
Publication of FR2162577B1 publication Critical patent/FR2162577B1/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
    • G08B13/1654—Actuation by interference with mechanical vibrations in air or other fluid using passive vibration detection systems
FR7243716A 1971-12-10 1972-12-08 Expired FR2162577B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5759871A GB1402530A (en) 1971-12-10 1971-12-10 Detecting damage to glass

Publications (2)

Publication Number Publication Date
FR2162577A1 FR2162577A1 (fr) 1973-07-20
FR2162577B1 true FR2162577B1 (fr) 1980-07-25

Family

ID=10479560

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7243716A Expired FR2162577B1 (fr) 1971-12-10 1972-12-08

Country Status (6)

Country Link
JP (1) JPS563598B2 (fr)
DE (1) DE2260352C2 (fr)
FR (1) FR2162577B1 (fr)
GB (1) GB1402530A (fr)
IT (1) IT975986B (fr)
ZA (1) ZA728609B (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2254540C3 (de) * 1972-11-08 1981-06-04 Wilhelm 6700 Ludwigshafen Karger Schaltungsanordnung für einen Schwingungsmelder für Ruhestrom-Alarm-Anlagen
JPS5068687U (fr) * 1973-10-26 1975-06-19
JPS50130398A (fr) * 1974-03-30 1975-10-15
JPS5879B2 (ja) * 1975-02-08 1983-01-05 株式会社富士通ゼネラル カンシソウチ
JPS51152349U (fr) * 1975-05-29 1976-12-04
JPS584397B2 (ja) * 1975-09-11 1983-01-26 株式会社富士通ゼネラル カンシソウチ
JPS5265489U (fr) * 1975-11-11 1977-05-14
US4091660A (en) * 1977-03-16 1978-05-30 Matsushita Electric Industrial Co., Ltd. Apparatus for detecting the breaking of a glass plate
DE3043912A1 (de) * 1980-11-21 1982-07-01 alfasystem GmbH Vertrieb von elektronischen Sicherheitssystemen, 8034 Germering Glasbruchmelder mit abgesetzter auswerteelektronik
DE3142705C2 (de) * 1981-10-28 1986-06-12 Securiton AG, Zollikofen, Bern Vorrichtung zur Überwachung des Zustandes eines zur Fortleitung von Schallwellen geeigneten Körpers
GB2129592B (en) * 1982-07-02 1986-09-10 Paul Coleman Motion sensor
DE9003065U1 (fr) * 1989-04-12 1990-10-25 Siemens Ag, 1000 Berlin Und 8000 Muenchen, De
GB2348496A (en) * 1999-03-31 2000-10-04 Frazer Nash Consultancy Ltd Method and apparatus for the detection of scratching and similar surface action to glass
CN108242122A (zh) * 2016-12-23 2018-07-03 浙江金徕镀膜有限公司 一种用于清理切磨导致破碎的玻璃的报警装置
GB2603887A (en) * 2020-11-24 2022-08-24 Novosound Ltd Tamper proof ultrasound sensor
CN113203800B (zh) * 2021-05-25 2022-11-18 江苏大学 一种用于叉指式换能器的性能标定装置及标定方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB627038A (en) * 1946-11-09 1949-07-26 Ferranti Ltd Improvements in means for detecting mechanical vibrations caused by friction
GB1186044A (en) * 1967-04-25 1970-04-02 Electronic Lab Ltd Formerly El Alarm Circuit
DE2127562B2 (de) * 1971-06-03 1979-05-23 Spirig, Ernst, Dipl.-Ing., Rapperswil (Schweiz) Vorrichtung zur Anzeige von Glasscheibenbruch

Also Published As

Publication number Publication date
DE2260352C2 (de) 1985-01-17
GB1402530A (en) 1975-08-13
IT975986B (it) 1974-08-10
FR2162577A1 (fr) 1973-07-20
JPS4866485A (fr) 1973-09-12
AU4978572A (en) 1974-06-13
JPS563598B2 (fr) 1981-01-26
ZA728609B (en) 1973-08-29
DE2260352A1 (de) 1973-06-28

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Legal Events

Date Code Title Description
TP Transmission of property