DE611828C - Stress and performance meter - Google Patents

Stress and performance meter

Info

Publication number
DE611828C
DE611828C DEB161326D DEB0161326D DE611828C DE 611828 C DE611828 C DE 611828C DE B161326 D DEB161326 D DE B161326D DE B0161326 D DEB0161326 D DE B0161326D DE 611828 C DE611828 C DE 611828C
Authority
DE
Germany
Prior art keywords
string
stress
comparison
power meter
meter according
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
DEB161326D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB161326D priority Critical patent/DE611828C/en
Application granted granted Critical
Publication of DE611828C publication Critical patent/DE611828C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01D5/243—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 phase or frequency of ac
    • 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
    • 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
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00

Description

Beanspruchungs- und Leistungsmesser Zweck der Erfindung ist die Verbesserung der im Anspruch des Hauptpatents erwähnten Sichtbarmachung der Schwingungen der Vergleichssaite und die fortlaufende Registrierung oder Anzeige der Meß-,verte im Augenblick der Resonanz zwischen Geber-und Vergleichssaite.Stress and power meters The purpose of the invention is to improve the visualization of the vibrations of the mentioned in the claim of the main patent Comparison string and the continuous registration or display of the measured values in the Moment of resonance between the donor and comparison strings.

Wenn es auch möglich ist, die Schwingungen der Vergleichssaite im Resonanzpunkt mit dem bloßen Auge wahrzunehmen, so ist eine Erleichterung, besonders bei schwankender Frequenz der Gebersaite, zur Feststellung der Resonanzausschläge doch erwünscht und vorteilhaft. Dieser Zweck wird erreicht durch Verwendung der Vergleichssaite als Unterbrecher eines Stromkreises einer an sich bekannten elektrischen Anzeige- oder Schreibvorrichtung, indem die Vergleichssaite beim Ausschwingen im Resonanzzustand ,einen Kontakt berührt, der in an sich bekannter Weise diesen Stromkreis schließt.If it is also possible, the vibrations of the reference string in the Perceiving resonance point with the naked eye is a relief, especially with fluctuating frequency of the transmitter string, to determine the resonance deflections but desirable and advantageous. This purpose is achieved by using the Reference string as an interrupter of a circuit of an electrical known per se Display or writing device, in which the comparison string when swinging out in the State of resonance, touches a contact which, in a manner known per se, this circuit closes.

Bei den Meßinstrumenten der im Hauptpatent vorausgesetzten Art wandte man zum Zweck der schaubildlichen Darstellung der Meß"verte bisher bei stark schwankenden Meßwerten die oszillographische Methode an, nach welcher auf lichtempfindlichem Papier die Schwingungen aufgezeichnet werden. Aus der Frequenz wird dann auf die Dehnung der Gebersaite bzw. des Meßkörpers geschlossen. Nachteilig hierbei ist die erforderlichz große Papiergeschwindigkeit und das mühsame und zeitraubende Auszählen der SchwingungeA in der Zeiteinheit.In the case of measuring instruments of the type required in the main patent for the purpose of a graphical representation of the measurement values, up to now, values have been used in the case of strongly fluctuating Measured values the oscillographic method according to which on light-sensitive The vibrations are recorded on paper. The frequency then becomes the Extension of the transmitter string or the measuring body closed. The disadvantage here is required a high paper speed and tedious and time-consuming counting the oscillation A in the unit of time.

Diese Nachteile werden bei vorliegender Erfindung dadurch beseitigt, daß für die Vergleichssaite eine solche Spannvorrichtung benutzt wird, durch welche die Vergleichssaite dauernd gespannt und :entspannt wird, so daß die Eigenfrequenz der Vergleichssaite dauernd von einem geringsten zu einem höchsten Wert steigt und von diesem auf. den Mindestwert wieder fällt, wobei die Vergleichssaite in dem Augenblick ausschlägt, wenn ihre Eigenfrequenz der augenblicklichen Frequenz der Gebersaite entspricht. . Die Registrierung der einzelnen Resonanzpunkte geschieht unter Benutzung der oben angegebenen Methode dadurch, daß der durch das Berühren der Saite mit einem elektrischen Kontakt geschlossene Stromkreis auf einer gleichzeitig mit der Spannvorrichtung angetriebenen Schreibvorrichtung in an sich bekannter Weise ein sichtbares Zeichen hinterläßt. Eine fortlaufende Anzeige der Resonanzpunkte ohne Registrierung derselben erhält man, wenn die Schreibvorrichtung in an sich bekannter Weise durch eine elektrische Anzeigevorrichtung, z. B. Glimmlampe, ersetzt wird.In the present invention, these disadvantages are eliminated by that such a tensioning device is used for the comparison string, by which the reference string is continuously tensioned and: relaxed, so that the natural frequency the comparison string rises continuously from a lowest to a highest value and from this on. the minimum value falls again, with the comparison string at the moment deflects when its natural frequency matches the current frequency of the transmitter string is equivalent to. . The registration of the individual resonance points is done using the above method in that the by touching the string with a electrical contact closed circuit on one at the same time as the jig driven writing device in a known manner a visible sign leaves behind. A continuous display of the resonance points without registering them receives one when the writing device in a known manner by an electrical display device, e.g. B. neon lamp is replaced.

Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in der Abbildung schema# tisch dargestellt.An embodiment of the subject invention is shown in the figure shown schematically.

a stellt die Vergleichssaite dar, die in Schwingung gerät, wenn die Spannung in ihr gleich der der Gebersaite b ist. c und d sind zwei Spannhebel, von denen c durch eine Schraube und d durch einen Exzentere auf und ab bewegt wird. Die Verbindungsstange f bewegt gleichzeitig mit d den Schreibhebel g, der auf der mit stromempfindlichem Papier bespannten Trommel k gleitet, die durch eine auf der Exzenterwellei sitzende Schnecke gedreht wird. Der in geringer Entfernung vor der Saitea befindliche Kontakth schließt bei Berührung der Saite a den Stromkreis der Batterie l über Trommel h und Schreibhebel g und hinterläßt auf dem stromempfindlichen Papier einen farbigen Abdruck, dessen _Abstand über der geeichten Nullinie ein Maß für die zu messende Beanspruchung oder Leistung ergibt.a represents the reference string that starts to vibrate when the tension in it is equal to that of the transmitter string b. c and d are two clamping levers, of which c is moved up and down by a screw and d by an eccentric. The connecting rod f moves simultaneously with d the writing lever g, which slides on the drum k, which is covered with current-sensitive paper and which is rotated by a worm seated on the eccentric shaft. The contact h located a short distance in front of the Saitea closes the circuit of the battery l via drum h and writing lever g when touching the string a and leaves a colored imprint on the current-sensitive paper, the distance above the calibrated zero line a measure of the load to be measured or Performance results.

Claims (1)

PATENTANSPRÜCHE: i. Beanspruchungs- und Leistungsmesser nach Patent 583915, bei dem die bei Übereinstimmung der Eigenfrequenz von Geber- und Vergleichssaite ausschwingende Vergleichssaite als Unterbrecher eines zum Betätigen einer an sich bekannten elektrischen Anzeige- oder Schreibvorrichtung verwendeten Stromkreises benutzt wird. a. Beanspruchungs- und Leistungsmesser nach Anspruch i, bei dem die Meßwerte fortlaufend angezeigt oder aufgezeichnet werden, gekennzeichnet durch eine besondere Spannvorrichtung, mittels welcher das Ausschwangen der Vergleichssaite durch dauerndes Spannen und Entspannen der Vergleichssaite während des Versuches bewirkt wird.PATENT CLAIMS: i. Stress and power meter according to patent 583915, in which the natural frequency of the encoder and comparison strings decaying comparison string as a breaker for actuating one per se known electrical display or writing device used circuit is used. a. Stress and power meter according to claim i, wherein the Measured values are continuously displayed or recorded, identified by a special tensioning device, by means of which the swinging of the reference string by continuously tensioning and relaxing the reference string during the experiment is effected.
DEB161326D 1933-06-21 1933-06-21 Stress and performance meter Expired DE611828C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB161326D DE611828C (en) 1933-06-21 1933-06-21 Stress and performance meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB161326D DE611828C (en) 1933-06-21 1933-06-21 Stress and performance meter

Publications (1)

Publication Number Publication Date
DE611828C true DE611828C (en) 1935-04-06

Family

ID=7004561

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB161326D Expired DE611828C (en) 1933-06-21 1933-06-21 Stress and performance meter

Country Status (1)

Country Link
DE (1) DE611828C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746405C (en) * 1937-04-02 1944-08-03 Dr Richard Seiler Method for detecting defects in workpieces
DE1256431B (en) * 1955-04-21 1967-12-14 Andre Coyne Method and device for measuring physical quantities by means of two vibration generators of the same type

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746405C (en) * 1937-04-02 1944-08-03 Dr Richard Seiler Method for detecting defects in workpieces
DE1256431B (en) * 1955-04-21 1967-12-14 Andre Coyne Method and device for measuring physical quantities by means of two vibration generators of the same type

Similar Documents

Publication Publication Date Title
DE2357033C2 (en) Device for measuring material properties, in particular hardness, according to a contact impedance method
DE2258961B2 (en) Device for determining the humidity of tobacco by measuring the electrical conductivity
DE611828C (en) Stress and performance meter
DE622581C (en) Platform scale
DE454007C (en) Arrangement for measuring and registering distances or sea depths by echo sounder
DE723026C (en) Measuring device with electrical remote display for small changes in length
DE517212C (en) Device for determining the humidity of substances
DE583915C (en) Stress and performance meter
DE872669C (en) Method for measuring small changes in length of a test specimen while taking into account any bends that may occur
DE700653C (en) nings
DE701991C (en) Rangefinder working according to the echo method
DE872599C (en) Method for measuring electrical resistance
DE860663C (en) Method for determining the electrical conductivity
DE871634C (en) Measuring device for determining the dielectric constant
DE466530C (en) Process for the continuous measurement of the concentration of electrolytically conductive liquids
DE568619C (en) Facility for making small changes in position visible from a distance
DE558540C (en) Device for the electrical remote transmission of measured values or the like by induction effect using a movable current coil influenced by the measured variable
DE681137C (en) Device for measuring the difference quotient of the characteristics of lawful electrical processes
DE386332C (en) Circuit for measuring, especially remote measurement, of direct current by influencing the permeability and current strength of an alternating current circuit magnetically coupled to the direct current circuit and containing the display instrument
DE838789C (en) Measuring amplifier
DE497131C (en) Device for transferring the consonance point of tuned vibrating bodies to a display device
DE346082C (en) Method and device for determining the yield strength of magnetic materials
AT295200B (en) Method and device for measuring the dry weight or the water content of a soil
DE662516C (en) Device for measuring the hydrogen ion concentration
DE750774C (en) Liquid level indicator