FR2359408A3 - Indicateur de l'etat de la peau - Google Patents

Indicateur de l'etat de la peau

Info

Publication number
FR2359408A3
FR2359408A3 FR7730557A FR7730557A FR2359408A3 FR 2359408 A3 FR2359408 A3 FR 2359408A3 FR 7730557 A FR7730557 A FR 7730557A FR 7730557 A FR7730557 A FR 7730557A FR 2359408 A3 FR2359408 A3 FR 2359408A3
Authority
FR
France
Prior art keywords
indicator
source
branches
transistor
switch
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.)
Pending
Application number
FR7730557A
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.)
Solitron Devices Inc
Original Assignee
Solitron Devices Inc
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 Solitron Devices Inc filed Critical Solitron Devices Inc
Publication of FR2359408A3 publication Critical patent/FR2359408A3/fr
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/20—Clinical contact thermometers for use with humans or animals
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves 
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0531—Measuring skin impedance
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dermatology (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

L'invention concerne un moyen pour détecter si l'état d'une peau nécessite des émollients ou des astringents. Selon l'invention, il comprend un boîtier contenant un circuit ayant une paire de transistors à effet de champ 34, 36 agencés en pont entre une source B+ d'énergie électrique connectée à leurs drains et un indicateur 50 connecté à leurs branches de résistance de source, l'une desdites branches comportant une résistance variable 54, 56 opérativement connectée pour contrôler la conduction de son transistor 36 et produire un moyen pour équilibrer les branches, l'indicateur ayant une connexion vers l'autre porte du transistor 34; un premier commutateur 16 pour connecter une sonde 20 à travers l'indicateur, et servant également à connecter un moyen de calibrage 68 à travers l'indicateur; et un second commutateur 14 pour compléter la connexion de la source au circuit L'invention s'applique notamment aux soins esthétiques.
FR7730557A 1976-12-22 1977-10-11 Indicateur de l'etat de la peau Pending FR2359408A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/753,536 US4096852A (en) 1976-12-22 1976-12-22 Skin conditioning indicator

Publications (1)

Publication Number Publication Date
FR2359408A3 true FR2359408A3 (fr) 1978-02-17

Family

ID=25031055

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7730557A Pending FR2359408A3 (fr) 1976-12-22 1977-10-11 Indicateur de l'etat de la peau

Country Status (6)

Country Link
US (1) US4096852A (fr)
BE (1) BE859726A (fr)
DE (1) DE2746145A1 (fr)
FR (1) FR2359408A3 (fr)
GB (1) GB1594724A (fr)
IT (1) IT1114435B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942880A (en) * 1981-01-28 1990-07-24 Ceske Vysoke Uceni Technicke V Praze Method for non-invasive electric diagnosis and therapy in hemodialysis and general medicine
US4494554A (en) * 1981-09-25 1985-01-22 Helga M. Van Dyke Skin test device using I.C. comparator circuit
GB2136575A (en) * 1983-03-15 1984-09-19 Sylvia Lewis Skin testing apparatus
US4860753A (en) * 1987-11-04 1989-08-29 The Gillette Company Monitoring apparatus
DE3815096A1 (de) * 1988-05-04 1989-11-16 Thomas Hoell Verfahren und sensor zur messung von elektrodermalen reaktionen
CA2199554C (fr) * 1996-03-12 2006-03-14 Loren R. Ouellette Analyzeur de l'etat de la peau avec capacite de parole
EP1171030B1 (fr) * 1999-04-20 2006-11-02 Nova Technology Corporation Procede et appareil de mesure de l'hydratation relative d'un substrat
US7496469B2 (en) * 2006-05-19 2009-02-24 Watlow Electric Manufacturing Company Temperature sensor adaptors and methods
US7496481B2 (en) * 2006-05-19 2009-02-24 Watlow Electric Manufacturing Company Sensor adaptors and methods

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE662033C (de) * 1935-12-11 1938-07-02 Siemens & Halske Akt Ges Anordnung zur Bestimmung von elektrischen Eigenschaften der menschlichen Haut oder anderer Koerper mit verhaeltnismaessig geringer elektrischer Leitfaehigkeit
US2728337A (en) * 1951-09-25 1955-12-27 Lakeland Foundation Diagnostic apparatus
US3593704A (en) * 1967-12-11 1971-07-20 Ardath M Schwab Pulse sensor for body pulse rate measuring means
FR1605392A (en) * 1968-08-23 1975-02-28 Electronic thermometer for medical applications - uses differential signal from two thermistors and stabilised voltage to avoid calibration
US3699813A (en) * 1970-05-25 1972-10-24 Anthony H Lamb Medical thermographic diagnostic means
GB1375366A (fr) * 1971-03-05 1974-11-27
FR2250505A1 (en) * 1973-11-09 1975-06-06 Laguerre Rene Physicophysilolgical differential measurement appts. - has probes in branches of Wheatstone bridge measuring temp. ratios

Also Published As

Publication number Publication date
IT1114435B (it) 1986-01-27
GB1594724A (en) 1981-08-05
BE859726A (fr) 1978-02-01
US4096852A (en) 1978-06-27
DE2746145A1 (de) 1978-07-06

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