DE3415824C2 - - Google Patents

Info

Publication number
DE3415824C2
DE3415824C2 DE19843415824 DE3415824A DE3415824C2 DE 3415824 C2 DE3415824 C2 DE 3415824C2 DE 19843415824 DE19843415824 DE 19843415824 DE 3415824 A DE3415824 A DE 3415824A DE 3415824 C2 DE3415824 C2 DE 3415824C2
Authority
DE
Germany
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
DE19843415824
Other languages
German (de)
Other versions
DE3415824A1 (en
Inventor
Fritz Dipl.-Ing. Hillebrandt (Fh), 3300 Braunschweig, De
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DE19843415824 priority Critical patent/DE3415824A1/en
Publication of DE3415824A1 publication Critical patent/DE3415824A1/en
Application granted granted Critical
Publication of DE3415824C2 publication Critical patent/DE3415824C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/01—Details
    • H03K3/014—Modifications of generator to ensure starting of oscillations
    • 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 vehicle train, e.g. pedals
    • B61L1/18—Railway track circuits
    • B61L1/181—Details
    • B61L1/187—Use of alternating current
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/952—Proximity switches using a magnetic detector using inductive coils
    • H03K17/9522—Proximity switches using a magnetic detector using inductive coils with a galvanically isolated probe
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/945—Proximity switches
    • H03K17/95—Proximity switches using a magnetic detector
    • H03K17/952—Proximity switches using a magnetic detector using inductive coils
    • H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
    • H03K17/9542—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator
    • H03K17/9545—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator with variable frequency
DE19843415824 1984-04-27 1984-04-27 Oscillator circuit for a track circuit in railway safety installations Granted DE3415824A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19843415824 DE3415824A1 (en) 1984-04-27 1984-04-27 Oscillator circuit for a track circuit in railway safety installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843415824 DE3415824A1 (en) 1984-04-27 1984-04-27 Oscillator circuit for a track circuit in railway safety installations

Publications (2)

Publication Number Publication Date
DE3415824A1 DE3415824A1 (en) 1985-11-07
DE3415824C2 true DE3415824C2 (en) 1987-03-19

Family

ID=6234562

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19843415824 Granted DE3415824A1 (en) 1984-04-27 1984-04-27 Oscillator circuit for a track circuit in railway safety installations

Country Status (1)

Country Link
DE (1) DE3415824A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123433A1 (en) * 2001-05-10 2002-08-14 Siemens Ag Determination of a train free length of track by measurement of the average voltage drop caused by application of a constant current to the track rails and determination of the corresponding reactance, which relates to the length

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3127672C2 (en) * 1981-07-13 1984-05-17 Siemens AG, 1000 Berlin und 8000 München Equipment in shunting systems for track clearance measurement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123433A1 (en) * 2001-05-10 2002-08-14 Siemens Ag Determination of a train free length of track by measurement of the average voltage drop caused by application of a constant current to the track rails and determination of the corresponding reactance, which relates to the length

Also Published As

Publication number Publication date
DE3415824A1 (en) 1985-11-07

Similar Documents

Publication Publication Date Title
AT379850B (en)
GR79871B (en)
GR73750B (en)
GR73454B (en)
AU2557584A (en)
AU2219783A (en)
BG44723A1 (en)
BG45135A1 (en)
BG45079A1 (en)
BG45060A1 (en)
BG45054A1 (en)
BG45043A3 (en)
EP0588387A3 (en)
BG45042A3 (en)
BG45025A1 (en)
BG44935A1 (en)
BG44933A1 (en)
BG44917A1 (en)
BG44848A1 (en)
BG44830A1 (en)
BG44829A1 (en)
BG44806A1 (en)
BG45163A1 (en)
BG44737A1 (en)
CA1260159C (en)

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee