GB909848A - Improvements in or relating to position indicating apparatus - Google Patents

Improvements in or relating to position indicating apparatus

Info

Publication number
GB909848A
GB909848A GB18268/60A GB1826860A GB909848A GB 909848 A GB909848 A GB 909848A GB 18268/60 A GB18268/60 A GB 18268/60A GB 1826860 A GB1826860 A GB 1826860A GB 909848 A GB909848 A GB 909848A
Authority
GB
United Kingdom
Prior art keywords
magnet
core
coil
saturation
inductance
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
GB18268/60A
Inventor
Joseph Raymond Pendleton
Richard Smart
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.)
UK Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 UK Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB18268/60A priority Critical patent/GB909848A/en
Publication of GB909848A publication Critical patent/GB909848A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/20—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature
    • G01D5/2006—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
    • G01D5/2033—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying inductance, e.g. by a movable armature by influencing the self-induction of one or more coils controlling the saturation of a magnetic circuit by means of a movable element, e.g. a magnet
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
    • G21C17/12—Sensitive element forming part of control element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

909,848. Locating magnetic bodies. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. July 5, 1961 [May 24, 1960], No. 18268/60. Class 37. [Also in Group XL (a)] The position of a permanent magnet with respect to an A.C. energized coil wound on a ferrous core which it maintains just short of saturation, and from which the magnet is isolated by a sealed container, is indicated by the change of inductance of the coil, due to the change of flux through the core, when in the neighbourhood of the magnet. A nuclear reactor shut-down rod, movable in a sealed sleeve of non-magnetic material, has an attached horse-shoe magnet which, in the fully inserted and fully withdrawn positions of the rod, presents its poles to one of a pair of horseshoe shaped iron cores outside the sleeve. Each core has a coil wound over a portion of reduced cross-section, which portion is driven into saturation, with consequent decrease in coil inductance, when the magnet moves into its proximity. The resulting increase in current may operate a relay or position-indicating meter.
GB18268/60A 1960-05-24 1960-05-24 Improvements in or relating to position indicating apparatus Expired GB909848A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB18268/60A GB909848A (en) 1960-05-24 1960-05-24 Improvements in or relating to position indicating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18268/60A GB909848A (en) 1960-05-24 1960-05-24 Improvements in or relating to position indicating apparatus

Publications (1)

Publication Number Publication Date
GB909848A true GB909848A (en) 1962-11-07

Family

ID=10109540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18268/60A Expired GB909848A (en) 1960-05-24 1960-05-24 Improvements in or relating to position indicating apparatus

Country Status (1)

Country Link
GB (1) GB909848A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852661A (en) * 1971-01-27 1974-12-03 Westinghouse Electric Corp A position indicator employing magnetic circuits to monitor the position of a magnetically permeable member movable along an axis having one degree of freedom

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3852661A (en) * 1971-01-27 1974-12-03 Westinghouse Electric Corp A position indicator employing magnetic circuits to monitor the position of a magnetically permeable member movable along an axis having one degree of freedom

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