GB8816791D0 - Detector - Google Patents

Detector

Info

Publication number
GB8816791D0
GB8816791D0 GB8816791A GB8816791A GB8816791D0 GB 8816791 D0 GB8816791 D0 GB 8816791D0 GB 8816791 A GB8816791 A GB 8816791A GB 8816791 A GB8816791 A GB 8816791A GB 8816791 D0 GB8816791 D0 GB 8816791D0
Authority
GB
United Kingdom
Prior art keywords
sample
current
semiconductor material
voltage
rotatable
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.)
Withdrawn
Application number
GB8816791A
Other versions
GB2222256A (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.)
University College London
Original Assignee
University College London
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 University College London filed Critical University College London
Priority to GB8816791A priority Critical patent/GB2222256A/en
Publication of GB8816791D0 publication Critical patent/GB8816791D0/en
Publication of GB2222256A publication Critical patent/GB2222256A/en
Withdrawn legal-status Critical Current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
    • G01B7/16—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring the deformation in a solid, e.g. by resistance strain gauge
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1107—Measuring contraction of parts of the body, e.g. organ, muscle
    • A61B5/1108—Measuring contraction of parts of the body, e.g. organ, muscle of excised organs, e.g. muscle preparations
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2503/00—Evaluating a particular growth phase or type of persons or animals
    • A61B2503/40—Animals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/45—For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4519—Muscles

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physiology (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Dentistry (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

A device for detecting the change in dimension of a sample of human or animal body tissue, comprises a body of semiconductor material (1) (e.g. Hall effect device) and a magnet means (2), one of these being rotatable about the other. An arm (5), to which the sample can be connected, is attached to the rotatable element. When a current is passed through the semiconductor material and a magnetic field is applied at right-angles to the current, a voltage VH (effect voltage) can be measured between the sides of the semiconductor. <IMAGE>
GB8816791A 1988-07-14 1988-07-14 Detector of body tissue dimensional change Withdrawn GB2222256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8816791A GB2222256A (en) 1988-07-14 1988-07-14 Detector of body tissue dimensional change

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8816791A GB2222256A (en) 1988-07-14 1988-07-14 Detector of body tissue dimensional change

Publications (2)

Publication Number Publication Date
GB8816791D0 true GB8816791D0 (en) 1988-08-17
GB2222256A GB2222256A (en) 1990-02-28

Family

ID=10640461

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8816791A Withdrawn GB2222256A (en) 1988-07-14 1988-07-14 Detector of body tissue dimensional change

Country Status (1)

Country Link
GB (1) GB2222256A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135777A1 (en) * 1971-07-16 1973-02-01 Quick Rotan Becker & Notz Kg SET POINT ENCODER FOR ELECTRIC DRIVES
US3835373A (en) * 1973-02-12 1974-09-10 Pertec Corp Rotational position sensor utilizing a hall device and means to maintain the hall voltage constant
JPS56107119A (en) * 1980-01-30 1981-08-25 Nippon Denso Co Ltd Detecting device for rotational angle
SE445585B (en) * 1985-02-28 1986-06-30 Saab Scania Ab ARRANGEMENTS BY A MAGNETIC GIVER
US4789826A (en) * 1987-03-19 1988-12-06 Ampex Corporation System for sensing the angular position of a rotatable member using a hall effect transducer

Also Published As

Publication number Publication date
GB2222256A (en) 1990-02-28

Similar Documents

Publication Publication Date Title
DE69423023T2 (en) Non-destructive test device with magnetic sensor of the SQUID type
DE69227912D1 (en) EXTERNAL BODY PROBE FOR MRI IMAGING AND SPECTROSCOPY
WO2002076294A3 (en) Simplified water-bag technique for magnetic susceptibility measurements on the human body and other specimens
PT722290E (en) MAGNETIC DETERMINATION OF POSITION AND ORIENTATION
ES2088492T3 (en) USE OF SUPERPARAMAGNETIC PARTICLES FOR MAGNETOMETRIC ANALYSIS (SQUID).
DE59108417D1 (en) Device for testing measuring objects equipped with magnetic properties
SE9403193L (en) Method and device for position determination
JPS5585205A (en) Apparatus for measuring position* attitude and change of rigid body in space
AU3651893A (en) Method for measuring position and angle
HUT52877A (en) Device for measuring impedance of the samples of low conductivity
IE43675B1 (en) A device for measuring the thickness of a layer
GB8816791D0 (en) Detector
DE69814423D1 (en) CIRCUIT ARRANGEMENT FOR MEASURING
GB8815078D0 (en) Non-destructive testing device for elongate magnetically conductuve element
SE7604389L (en) MAGNETIC FLOOD SENSOR
EP0349996A3 (en) Apparatus for measuring magnetic field using superconductive magneto-resistive element
JPS54158960A (en) Position detector
FR2743183B1 (en) MAGNETORESISTIVE MICROPOINT RECORDING DEVICE
ATE289687T1 (en) DEVICE FOR MEASURING A PHYSICAL SIZE RELATED TO THE ROTATION OF AN ORGAN
ATE132275T1 (en) DENTAL IMPLANTS SEARCH DEVICE
AU4634189A (en) System for determining the position of receptor regions
Rysavy Equipment for detecting mechanical properties of ferromagnetic materials in nondestructive testing
Harada et al. A new magnetometer using a small ring core and MOS-FETs
Zatsepin et al. Solid Cylindrical-Core Transverse Excitation Ferroprobes
ATE127930T1 (en) DEVICE FOR MEASURING CURRENT, PREFERABLY CURRENT AND VOLTAGE, ON CONDUCTORS OF A SINGLE OR MULTI-PHASE SYSTEM.

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)