IL34799A - Metal detection and alarm systems - Google Patents
Metal detection and alarm systemsInfo
- Publication number
- IL34799A IL34799A IL3479970A IL3479970A IL34799A IL 34799 A IL34799 A IL 34799A IL 3479970 A IL3479970 A IL 3479970A IL 3479970 A IL3479970 A IL 3479970A IL 34799 A IL34799 A IL 34799A
- Authority
- IL
- Israel
- Prior art keywords
- revolving door
- alarm
- person
- region
- door
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims description 46
- 229910052751 metal Inorganic materials 0.000 title claims description 46
- 238000001514 detection method Methods 0.000 title claims description 14
- 230000005291 magnetic effect Effects 0.000 claims description 29
- 230000004907 flux Effects 0.000 claims description 12
- 230000004044 response Effects 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 229910000677 High-carbon steel Inorganic materials 0.000 claims 1
- 239000011521 glass Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000001419 dependent effect Effects 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920005439 Perspex® Polymers 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004926 polymethyl methacrylate Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 229910001369 Brass Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000003302 ferromagnetic material Substances 0.000 description 2
- 238000005304 joining Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005482 Oroglas® Polymers 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- 241000269400 Sirenidae Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000004377 microelectronic Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/24—Electrical actuation by interference with electromagnetic field distribution
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/104—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils
- G01V3/105—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils using several coupled or uncoupled coils forming directly coupled primary and secondary coils or loops
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Remote Sensing (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Burglar Alarm Systems (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU5707769 | 1969-06-26 | ||
| AU5707869 | 1969-06-26 | ||
| AU5780069 | 1969-07-11 | ||
| AU5912369 | 1969-08-06 | ||
| AU6556369 | 1969-12-22 | ||
| AUPA005870 | 1970-01-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IL34799A true IL34799A (en) | 1973-01-30 |
Family
ID=27542766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL3479970A IL34799A (en) | 1969-06-26 | 1970-06-25 | Metal detection and alarm systems |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE2031523C3 (enExample) |
| FR (1) | FR2054591A1 (enExample) |
| GB (1) | GB1320153A (enExample) |
| IL (1) | IL34799A (enExample) |
| SE (1) | SE361949B (enExample) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2314509A1 (fr) * | 1975-06-11 | 1977-01-07 | Dumesnil Gerard | Procede et dispositif pour la detection de corps ferromagnetiques a fort champ coercitif notamment pour controler les acces aux lieux publics |
| SE450673B (sv) * | 1980-01-15 | 1987-07-13 | Matsushita Electric Works Ltd | Varningsanleggning, for indikering av en persons nervaro inom ett givet omrade |
| FR2510764A1 (fr) * | 1981-07-30 | 1983-02-04 | Franquet Leon | Dispositif de detection d'objets metalliques, tels que des armes a feu, et sas d'acces de locaux equipes de tels dispositifs |
| GB2220444A (en) * | 1988-07-06 | 1990-01-10 | Paul Francis Creer | Revolving security door |
| CA2393519C (en) * | 2000-10-04 | 2010-09-14 | Adt Security Services, Inc. | Ingress/egress control system for airport concourses and other access controlled areas |
-
1970
- 1970-06-24 GB GB3055870A patent/GB1320153A/en not_active Expired
- 1970-06-25 DE DE19702031523 patent/DE2031523C3/de not_active Expired
- 1970-06-25 IL IL3479970A patent/IL34799A/en unknown
- 1970-06-25 SE SE880170A patent/SE361949B/xx unknown
- 1970-06-26 FR FR7023730A patent/FR2054591A1/fr active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2031523A1 (de) | 1971-02-25 |
| DE2031523C3 (de) | 1976-01-08 |
| GB1320153A (en) | 1973-06-13 |
| DE2031523B2 (enExample) | 1975-04-30 |
| SE361949B (enExample) | 1973-11-19 |
| FR2054591A1 (enExample) | 1971-04-23 |
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