GB494995A - Improvements in coil arrangements for electric traffic counting apparatus and the like - Google Patents

Improvements in coil arrangements for electric traffic counting apparatus and the like

Info

Publication number
GB494995A
GB494995A GB32221/37A GB3222137A GB494995A GB 494995 A GB494995 A GB 494995A GB 32221/37 A GB32221/37 A GB 32221/37A GB 3222137 A GB3222137 A GB 3222137A GB 494995 A GB494995 A GB 494995A
Authority
GB
United Kingdom
Prior art keywords
coils
counting apparatus
coil arrangements
voltage
traffic counting
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
Application number
GB32221/37A
Other languages
English (en)
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB494995A publication Critical patent/GB494995A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L1/00—Devices along the route controlled by interaction with the vehicle or train
    • B61L1/16—Devices for counting axles; Devices for counting vehicles
    • B61L1/163—Detection devices
    • B61L1/165—Electrical
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/01—Detecting movement of traffic to be counted or controlled
    • G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Theoretical Computer Science (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
GB32221/37A 1937-02-06 1937-11-23 Improvements in coil arrangements for electric traffic counting apparatus and the like Expired GB494995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK201126X 1937-02-06

Publications (1)

Publication Number Publication Date
GB494995A true GB494995A (en) 1938-11-04

Family

ID=8149909

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32221/37A Expired GB494995A (en) 1937-02-06 1937-11-23 Improvements in coil arrangements for electric traffic counting apparatus and the like

Country Status (5)

Country Link
BE (1) BE424877A (enrdf_load_stackoverflow)
CH (1) CH201126A (enrdf_load_stackoverflow)
FR (1) FR829718A (enrdf_load_stackoverflow)
GB (1) GB494995A (enrdf_load_stackoverflow)
NL (1) NL48425C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435880A (en) * 1943-09-22 1948-02-10 Chicago Coin Machine Co Electronic control system

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR956774A (enrdf_load_stackoverflow) * 1944-05-18 1950-02-07
US2532231A (en) * 1949-05-21 1950-11-28 Streeter Amet Co Traffic detector
US3656059A (en) * 1970-05-25 1972-04-11 Sylvania Electric Prod Single sensor motor vehicle velocity detector
DE2232335C2 (de) * 1972-06-28 1984-09-06 Signalbau Huber - Designa GmbH, 8000 München Aktive Induktionsschleife für Verkehrsdetektoren
US3984764A (en) * 1975-03-03 1976-10-05 Canoga Controls Corporation Inductive loop structure for detecting the presence of vehicles over a roadway
WO2007071215A1 (de) * 2005-12-19 2007-06-28 Karl Salzmann Induktionsanlage
DE102021111221B4 (de) 2021-04-30 2024-10-24 Ralf Schlegel System und Verfahren zur Geschwindigkeitsmessung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2435880A (en) * 1943-09-22 1948-02-10 Chicago Coin Machine Co Electronic control system

Also Published As

Publication number Publication date
FR829718A (fr) 1938-07-05
BE424877A (enrdf_load_stackoverflow)
CH201126A (de) 1938-11-15
NL48425C (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
GB494995A (en) Improvements in coil arrangements for electric traffic counting apparatus and the like
NZ182019A (en) Current limiting in circuiti breaker by induced magnetic field
GB1379758A (en) Method and means for magnetic modulation
CA1033458A (en) Magnetic domain systems using domains having different properties
GB1039252A (en) Monitoring the motion of moving bodies
GB1229730A (enrdf_load_stackoverflow)
GB1495106A (en) Magnetic bias arrangement for bubble domain devices
GB1216236A (en) Improved signalling systems for electrically-operated rail vehicles
GB517001A (en) Improvements relating to electromagnetic relays
GB1171991A (en) Highway Crossing Signal Control System
GB607868A (en) Magnetic apparatus for detecting the passage of vehicles and other traffic
GB1035284A (en) Improvements in magnetic heads
US1969059A (en) Railway track circuit
GB1511826A (en) Magnetic bubble domain systems
US2215821A (en) Railway signaling apparatus
SU41575A1 (ru) Устройство дл автоблокировки
US2217528A (en) Railway signaling apparatus
US1682422A (en) Train-control system
BE848123A (fr) Bobine pour champs magnetiques intenses,
GB1213040A (en) Electric signalling devices
GB440035A (en) Improvements in or relating to gramophonic and like devices for signalling, advertising and similar uses
DE1190540B (de) Eisenempfindlicher elektrischer Schalter
GB1112926A (en) Improvements in or relating to magnetic film-store read-out arrangements
GB306102A (en) Current impulse producing device, particularly for use on railways
GB1116469A (en) Improvements in or relating to pulse-supplying arrangements