DE966460C - Oscillograph for the direct recording of biological processes with a soft iron measuring mechanism - Google Patents

Oscillograph for the direct recording of biological processes with a soft iron measuring mechanism

Info

Publication number
DE966460C
DE966460C DES3153A DES0003153A DE966460C DE 966460 C DE966460 C DE 966460C DE S3153 A DES3153 A DE S3153A DE S0003153 A DES0003153 A DE S0003153A DE 966460 C DE966460 C DE 966460C
Authority
DE
Germany
Prior art keywords
measuring mechanism
superimposed
soft iron
biological processes
oscillograph
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
DES3153A
Other languages
German (de)
Inventor
Dr-Ing Olaf Grimm
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 DES3153A priority Critical patent/DE966460C/en
Application granted granted Critical
Publication of DE966460C publication Critical patent/DE966460C/en
Expired 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
    • 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
    • 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
    • G01D15/00—Component parts of recorders for measuring arrangements not specially adapted for a specific variable
    • G01D15/02—Styli or other recording elements acting to mechanically deform or perforate the recording surface
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K5/00—Measuring temperature based on the expansion or contraction of a material
    • G01K5/02—Measuring temperature based on the expansion or contraction of a material the material being a liquid
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators

Landscapes

  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Description

(WiGBI. S. 175)(WiGBI. P. 175)

AUSGEGEBEN AM 8. AUGUST 1957ISSUED AUGUST 8, 1957

S 3i53IX142 dS 3i53IX142 d

Oszillographen zur Aufzeichnung biologischer Vorgänge mit einem Weicheisenmeßwerk sind bekannt. Oscillographs for recording biological processes with a soft iron measuring mechanism are known.

Eine besondere Schwierigkeit besteht bei derartigen direkt schreibenden Oszillographen darin, daß die Reibung des Schreibers auf dem Registrierpapier überwunden werden muß. Außerdem treten bei Weicheisenmeßwerken zusätzlich Schwierigkeiten auf, die man als Hystereseerscheinungen bezeichnet.A particular difficulty with such direct writing oscilloscopes is that the friction of the pen on the recording paper must be overcome. aside from that additional difficulties occur with soft iron measuring mechanisms, which are known as hysteresis phenomena designated.

Zur Überwindung beider Schwierigkeiten wird bei einem für die direkte Aufzeichnung biologischer Vorgänge dienenden Oszillographen mit einem Weicheisenmeßwerk erfindungsgemäß dem Meßwerk ein zusätzliches Wechselfeld mit einer Frequenz über 200 Hz überlagert. Dieses kann durch einen zusätzlichen Wechselstrom mit der Frequenz über 200 Hz erzeugt werden, z. B. dadurch, daß der Wechselstrom eine zusätzliche Meßwerkspule durchfließt. Es kann aber auch dem das Meßwerk erregenden Wechselstrom ein. zusätzlicher Wechselstrom von der Frequenz von 200 Hz überlagert sein.To overcome both difficulties, one for direct recording will be biological Processes serving oscilloscope with a soft iron measuring mechanism according to the invention An additional alternating field with a frequency over 200 Hz superimposed on the measuring mechanism. This can generated by an additional alternating current with a frequency above 200 Hz, e.g. B. by that the alternating current flows through an additional measuring coil. But it can also do that Alternating current that excites the measuring mechanism. additional alternating current of the frequency of 200 Hz be superimposed.

Die Beseitigung der Reibungsfehler durch eine Rüttelwirkung oder auch durch ein zusätzliches Wechselfeld ist an sich bei Gleichstrominstrumenten bekannt. Die bisher zur Anwendung kommende Frequenz genügt aber nicht zur Vermeidung derThe elimination of the friction errors by a vibrating effect or by an additional one Alternating field is known per se in direct current instruments. The one that has been used so far However, frequency is not sufficient to avoid the

709 622/51709 622/51

Hysteresefehler des Weiaheisennießwerkes. Für dieses ist eine höhere Frequenz von über 200 Hz vorteilhafter, welche gleichzeitig auch für die Reibungsüberwindung besonders zweckmäßig ist, weil dann die Reibung überwunden wird, ohne gleichzeitig die aufgezeichnete Kurve zu stören, so daß diese Frequenz auf dem Papier nicht sichtbar in Erscheinung tritt.Hysteresis error of the Weiaheisenießwerkes. For this is a higher frequency of over 200 Hz more advantageous, which at the same time also for overcoming friction is particularly useful because then the friction is overcome without at the same time to perturb the recorded curve so that this frequency is not visible in on the paper Appearance occurs.

Durch die Anwendung der Erfindung werden durch ein aufgezwungenes Wechselfeld Hystereseerscheinungen im Weicheisen beseitigt, ohne daß diese Wechselfrequetiz auf dem Registrierpapier in Erscheinung tritt.By applying the invention, hysteresis phenomena are caused by an alternating field imposed eliminated in soft iron without this alternating frequency on the recording paper in Appearance occurs.

Man kann bei der Anwendung einer überlagerten Schwingung auch ein Registrierverfahren anwenden, bei dem der Zeiger eine Deckschicht entfernt. Das Fortarbeiten der Deckschicht wird dann durch die überlagerte Schwingung des Zeigers oder des Schreibstiftes geleitet, so daß die für die Einstellung der Amplituden verfügbare Meßleistung für jene Arbeitsleistung nicht herangezogen zu werden braucht. Dadurch wird eine genauere Zeigereinstellung erreicht.When using a superimposed oscillation, a registration procedure can also be used, in which the pointer removes a coating. The work of the top layer is then guided by the superimposed oscillation of the pointer or the pen, so that the setting of the amplitudes available measurement performance for that work performance is not used needs to be. This enables a more precise pointer setting to be achieved.

Das überlagerte Wechselfeld kann man z. B. dadurch erzeugen, daß ein Wechselstrom der gewählten Frequenzhöhe unmittelbar dem Meßstrom überlagert wird. Es ist dabei zweckmäßig, die Stärke dieses überlagerten Stromes oder Wechselfeldes durch eine Kunstschaltung auf einen bestimmten Wert zu begrenzen.The superimposed alternating field can be z. B. generate that an alternating current of the selected Frequency level is superimposed directly on the measuring current. It is useful that the Strength of this superimposed current or alternating field through an artificial circuit on a certain one Limit value.

Claims (1)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Für die direkte Aufzeichnung biologischer Vorgänge dienender Oszillograph mit einem Weicheisenmeßwerk, dadurch gekennzeichnet, daß ein zusätzliches Wechselfeld mit einer Frequenz über 200 Hz überlagert wird.1. For the direct recording of biological processes serving oscilloscope with a Soft iron measuring mechanism, characterized in that an additional alternating field with a frequency over 200 Hz is superimposed. 2. Oszillograph nach Anspruch 1, dadurch gekennzeichnet, daß dem das Meßwerk erregenden Wechselstrom in der Meßwerkspule ein zusätzlicher Wechselstrom einer Frequenz über 200 Hz überlagert wird.2. Oscillograph according to claim 1, characterized in that the exciting the measuring mechanism Alternating current in the measuring unit coil is an additional alternating current of a frequency above 200 Hz is superimposed. 3. Oszillograph nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein zusätzlicher Wechselstrom mit einer Frequenz über 200 Hz ein zusätzliches Feld erzeugt, welches sich dem vom Meßstrom erzeugten Feld überlagert.3. Oscillograph according to claim 1 or 2, characterized in that an additional Alternating current with a frequency above 200 Hz generates an additional field, which is the superimposed field generated by the measuring current. In Betracht gezogene Druckschriften:Considered publications: Deutsche Patentschriften Nr. 185 905, 248 269, 844619;German Patent Nos. 185 905, 248 269, 844619; britische Patentschrift Nr. 648 276; ATM J031-1 (Februar 1933); V2162-1 (AugustBritish Patent No. 648,276; ATM J031-1 (February 1933); V2162-1 (August 1937); t 1937); t A. Palen, »Registrierinstrumente«, 1950,S. 137.A. Palen, "Registration Instruments", 1950, p. 137. © 709622/51 8.57© 709622/51 8.57
DES3153A 1950-05-05 1950-05-05 Oscillograph for the direct recording of biological processes with a soft iron measuring mechanism Expired DE966460C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES3153A DE966460C (en) 1950-05-05 1950-05-05 Oscillograph for the direct recording of biological processes with a soft iron measuring mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES3153A DE966460C (en) 1950-05-05 1950-05-05 Oscillograph for the direct recording of biological processes with a soft iron measuring mechanism

Publications (1)

Publication Number Publication Date
DE966460C true DE966460C (en) 1957-08-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
DES3153A Expired DE966460C (en) 1950-05-05 1950-05-05 Oscillograph for the direct recording of biological processes with a soft iron measuring mechanism

Country Status (1)

Country Link
DE (1) DE966460C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255937B (en) * 1964-10-10 1967-12-07 Fritz Schwarzer Device for eliminating remanence on mechanical oscilloscopes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE185905C (en) *
DE248269C (en) *
GB648276A (en) * 1947-03-27 1951-01-03 Yarnall Waring Co Improvements in recording apparatus
DE844619C (en) * 1949-11-01 1952-07-21 Licentia Gmbh Rotary magnet measuring instrument with shielding against external fields

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE185905C (en) *
DE248269C (en) *
GB648276A (en) * 1947-03-27 1951-01-03 Yarnall Waring Co Improvements in recording apparatus
DE844619C (en) * 1949-11-01 1952-07-21 Licentia Gmbh Rotary magnet measuring instrument with shielding against external fields

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255937B (en) * 1964-10-10 1967-12-07 Fritz Schwarzer Device for eliminating remanence on mechanical oscilloscopes

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