GB1203248A - Apparatus for measuring the size of objects - Google Patents

Apparatus for measuring the size of objects

Info

Publication number
GB1203248A
GB1203248A GB4664867A GB4664867A GB1203248A GB 1203248 A GB1203248 A GB 1203248A GB 4664867 A GB4664867 A GB 4664867A GB 4664867 A GB4664867 A GB 4664867A GB 1203248 A GB1203248 A GB 1203248A
Authority
GB
United Kingdom
Prior art keywords
electrodes
pairs
size
insulator
oct
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
GB4664867A
Inventor
Eric Alfred Knight
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.)
MUIRHEAD Ltd PREVIOUSLY MUIRHE
Original Assignee
MUIRHEAD Ltd PREVIOUSLY MUIRHE
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 MUIRHEAD Ltd PREVIOUSLY MUIRHE filed Critical MUIRHEAD Ltd PREVIOUSLY MUIRHE
Priority to GB4664867A priority Critical patent/GB1203248A/en
Publication of GB1203248A publication Critical patent/GB1203248A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
    • G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
    • G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

1,203,248. Determining size of objects. MUIRHEAD Ltd. Oct.23, 1968 [Oct.12, 1967], No.46648/67. Heading G1N. The size of an externally insulated object e.g. the thickness of insulation of a cable 3, is determined by passing the object in the neighbourhood of a pair of electrodes R1 R1 acting as a resistance immersed in an electrically conductive fluid and measuring the change in conductance between the electrodes. To compensate for temperature and impurity variations in the fluid, further pairs of electrodes R2, R3, R4 acting as resistances are provided and are connected in a bridge circuit, the circuit being energized by a stabilized A.C. generator 4 and the change in conductivity between the electrode pairs R1, R3 respectively being indicated by a detector 5. As shown, the pairs R1, R3 are mounted in an insulator 1 which may be cylindrical or U-shaped and the pairs R2, R4 in an insulator 2, which is cylindrical. The resistance of all electrodes may be varied. The detector may give a visual indication of the required dimension, or may operate an alarm, an auto-size control system, or stop the machinery.
GB4664867A 1967-10-12 1967-10-12 Apparatus for measuring the size of objects Expired GB1203248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4664867A GB1203248A (en) 1967-10-12 1967-10-12 Apparatus for measuring the size of objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4664867A GB1203248A (en) 1967-10-12 1967-10-12 Apparatus for measuring the size of objects

Publications (1)

Publication Number Publication Date
GB1203248A true GB1203248A (en) 1970-08-26

Family

ID=10442060

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4664867A Expired GB1203248A (en) 1967-10-12 1967-10-12 Apparatus for measuring the size of objects

Country Status (1)

Country Link
GB (1) GB1203248A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee