EP2864844B1 - Verfahren zur bestimmung einer unwuchteigenschaft eines oszillators - Google Patents

Verfahren zur bestimmung einer unwuchteigenschaft eines oszillators Download PDF

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Publication number
EP2864844B1
EP2864844B1 EP13731342.5A EP13731342A EP2864844B1 EP 2864844 B1 EP2864844 B1 EP 2864844B1 EP 13731342 A EP13731342 A EP 13731342A EP 2864844 B1 EP2864844 B1 EP 2864844B1
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Prior art keywords
oscillator
balance
oscillation
positions
unbalance
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English (en)
French (fr)
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EP2864844A1 (de
Inventor
Richard Bossart
Marc Cerutti
Frédéric Burger
Olivier HUNZIKER
Denis FAVEZ
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Rolex SA
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Rolex SA
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/10—Measuring, counting, calibrating, testing or regulating apparatus for hairsprings of balances
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/08—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels
    • G04D7/082—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/08—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels
    • G04D7/082—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing
    • G04D7/085—Measuring, counting, calibrating, testing or regulating apparatus for balance wheels for balancing by removing material from the balance wheel itself
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1214—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for complete clockworks
    • G—PHYSICS
    • G04—HOROLOGY
    • G04D—APPARATUS OR TOOLS SPECIALLY DESIGNED FOR MAKING OR MAINTAINING CLOCKS OR WATCHES
    • G04D7/00—Measuring, counting, calibrating, testing or regulating apparatus
    • G04D7/12—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard
    • G04D7/1207—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring
    • G04D7/1235—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork)
    • G04D7/1242—Timing devices for clocks or watches for comparing the rate of the oscillating member with a standard only for measuring for the control mechanism only (found from outside the clockwork) for measuring amplitude

Definitions

  • the invention relates to a method for determining an unbalance characteristic of a sprung balance oscillator of a watch movement. It also relates to a method of adjusting a sprung balance oscillator, comprising an implementation of such a determination method. It also relates to a balance wheel or sprung balance oscillator obtained by implementing such an adjustment method and a movement or a timepiece comprising such a balance or spring balance oscillator.
  • Balancing the balance is one of the important stages in the production of a balance-spring oscillator intended to equip a watch movement.
  • the center of gravity of the balance should ideally be located on its axis of rotation, otherwise there are faults which quickly become penalizing for the chronometry of the movement.
  • the usual machining techniques are generally not precise enough to guarantee a good balance of the balance, and this balance is further modified by the attachment to the balance of the other components which form the sprung balance (driving the axle, plate, ferrule, spiral).
  • An unbalance measurement and a subsequent correction are generally undertaken on the balance provided with its single axis and the plate, before pairing with the hairspring and assembly in motion.
  • the static unbalance of the balance characterizes the off-center of the balance's center of gravity with respect to the axis of rotation. This unbalance is the product of the mass of the balance by the distance between its center of gravity and the axis of rotation. In the case of clockwork balances, the unbalance is typically measured in ⁇ g.cm or nN.m. With Earth's gravity, 1 ⁇ g.cm corresponds approximately to 0.1 nN.m.
  • the balance of the balance is measured and adjusted before assembly with the hairspring.
  • the measurement can be performed by rotating the balance on its axis placed horizontally between two swivels and measuring the oscillation and / or reaction forces of the support by means of piezoelectric sensors.
  • the unbalance value is obtained by calibration of the signal.
  • a balancing operation is then carried out which consists in removing material from the rim of the balance in a targeted manner.
  • Another possibility is to carry out a “dynamic balancing”, which consists in minimizing the differences in rate between positions by modifying the balance of the balance, based on a measurement in motion at a given amplitude.
  • This method is not very reliable: the effect of the unbalance is not necessarily preponderant compared to other sources of deviations at the amplitude for which the measurement is carried out.
  • By adjusting the balancing to correct the sum of these effects it is perfectly possible to greatly degrade the balance of the balance, which will disrupt the chronometric performance, in particular at low amplitudes. Such an approach is therefore to be avoided and is strongly discouraged in the literature.
  • the patent US3225586 proposes a method of simultaneous rate adjustment and "dynamic balancing" by four screws placed on the balance line, based on a measurement of walking in four vertical positions. Note that a “slide rule” type tool can directly convert the result of the measurement into the number of turns to be applied to each screw. The correction procedure is very specific to the measuring device used ("Watchmaster", US2113825 ) and cannot be adapted to more recent measuring devices.
  • the patent application WO2012007460 is a recent example of a device for measuring and correcting the unbalance of a balance.
  • This application describes a process for balancing the sprung balance assembly, in particular when the balance is mounted in motion.
  • the balancing is done by adding and / or removing and / or moving material, in particular by means of the laser machining type.
  • no precision is given on the way of measuring the lack of balance of the sprung balance.
  • the aim of the invention is to provide a method for determining an unbalance characteristic making it possible to remedy the drawbacks mentioned above and to improve the methods known from the prior art.
  • the invention proposes a method for determining an unbalance characteristic which is precise and reliable.
  • an oscillator is balanced by implementing a measurement of the apparent unbalance of the oscillator through a rate measurement as a function of the amplitude, in particular of a measurement in free oscillation, that is to say carried out in a free oscillation mode of the oscillator, then by implementing an unbalance adjustment, for example by adding / removing material or adjusting the position of weights .
  • a timepiece in particular a watch, in particular a wristwatch, seen from the rear, that is to say from the face opposite to that revealing the dial.
  • the timepiece comprises a movement 2 including an oscillator 3.
  • the oscillator itself comprises a balance 4 and a hairspring 5.
  • the rear face is generally the side which allows access to the balance and directly visualize its oscillations, and thus allow measurement of the oscillation period and / or oscillation amplitude by means of optical measuring means, more precise than the acoustic measuring means generally used.
  • the earth's gravitational field is represented by the vector g.
  • the movement is in the vertical “12H” position, that is to say that the general plane of the movement is parallel to the vector g and that the index “12H” of the dial mounted on the movement is located at high relative to the vector g (NIHS notation, see also “Treaty of horological construction”, p. 741).
  • the other vertical positions are defined in a similar way: 3H (with the movement rod 6 up), 6H and 9H.
  • Formulas show that the effect of unbalance on the average rate of four vertical positions separated by 90 °, for example the four vertical horological positions (12H, 9H, 6H, 3H), is always zero, because the effects of unbalance in opposing positions cancel each other out.
  • the average rate is therefore completely independent of the unbalance and it is therefore possible to use only the rate differences between each of the four vertical positions and their average to determine the unbalance.
  • the unbalance is determined, and in particular is calculated, not at a single amplitude, but over a wide range of values reached by the balance-spring oscillator.
  • the measurement can be carried out in free oscillation, for example by removing the anchor from the movement, or by mounting the balance-spring oscillator on a stand provided for this purpose.
  • the unbalance characteristic of the sprung balance oscillator, in particular of the sprung balance oscillator intended to be mounted in a watch movement or arranged to be mounted in a watch movement, is determined or calculated.
  • the approach for determining the unbalance is to operate a least squares minimization from the measured curves of operation as a function of the amplitude in order to deduce therefrom the intensity b of the unbalance and its direction ⁇ with respect to the direction 9H.
  • the sum is carried out over a number of discrete values of the amplitude ⁇ , for example the values measured with an interval of 10 °. It can be seen that the position in x of the unbalance is linked only to the measurements in positions 3H and 9H while its position in y is linked only to the measurements in 6H and 12H for the chosen reference frame.
  • the orientation ⁇ of the unbalance is obtained by an Arctan function (by / bx), taking into account the sign.
  • the step of using the data can comprise the calculation of the unbalance characteristic from a formula involving the data determined during a step of determining a data representative of the period of oscillation of the 'oscillator.
  • the figures 2 and 3 show on the one hand a rate measurement as a function of the amplitude in free oscillation for a spring-balance oscillator mounted in motion, and on the other hand the rate curves for the same movement after calculation allowing to subtract from the effect unbalance.
  • the method for determining the unbalance is based on the determination of the apparent unbalance of the balance-spring oscillator, which is the calculated unbalance making it possible to best reproduce the rate measurements as a function of the amplitude of the oscillator, in particular the ones. oscillator operating curves measured in vertical position. Systematic measurements show that the apparent unbalance is greater than the unbalance of the balance alone (after balancing) in 80% of cases. The good balance of the balance is thus partly degraded by the assembly of the hairspring on the axis of the balance, as well as by the assembly in motion.
  • variable i of a first counter is initialized to 0.
  • this first counter i is incremented by one unit.
  • the balance-spring oscillator is set in oscillation at an i th amplitude.
  • This setting in motion can be carried out as seen above according to two modes: a maintained oscillation mode or a free oscillation mode.
  • the free oscillation mode the oscillator is placed in the movement or outside the movement, for example on a mounting provided for this purpose.
  • the balance does not interact with an anchor or escape blocker.
  • the oscillations are not maintained.
  • This mode can be obtained by removing an escapement member, in particular an anchor, from the movement, or by assembling the spiral balance oscillator in motion before assembling the anchor, or by mounting the balance spring oscillator on a fitting provided for this purpose.
  • the oscillations are maintained by a torque transmitted by the gear train to the balance through an element, such as an anchor.
  • the i th amplitude is preferably within the interval] 200 °; 280 ° [, preferably included in the interval] 150 °; 280 ° [, more preferably still included in the interval] 100 °; 300 ° [.
  • variable j of a second counter is initialized to 0.
  • this second counter j is incremented by one unit.
  • a sixth step 160 the movement, and therefore the oscillator, is placed in a j th position relative to the earth's gravitational field.
  • this j th position is a vertical position, more preferably a vertical horological position, for example the 3H position, the 6H position, the 9H position or the 12H position.
  • a datum representative of the oscillation period of the oscillator is determined, in particular by implementing a measuring step.
  • the data is the duration of one period of oscillation of the oscillator or the duration of several periods of oscillation of the oscillator.
  • step 180 it is tested whether the variable j of the second counter is less than or equal to a threshold n. If this is the case, we loop on step 150. If this is not the case, we go to a ninth step 190.
  • this ninth step 190 it is tested whether the variable i of the first counter is less than or equal to a threshold m. If this is the case, we loop on step 120. If this is not the case, we go to a tenth step 200.
  • m ⁇ 2, m representing the number of amplitudes for which measurements are made.
  • the two extreme amplitudes differ by at least 30 °, preferably by at least 50 °, more preferably by at least 100 °.
  • the two extreme amplitudes are on either side of 220 °. More preferably, the amplitudes are included in the interval] 200 °; 280 ° [, preferably included in the interval] 150 °; 280 ° [, more preferably still included in the interval] 100 °; 300 ° [.
  • the number of measurements is m ⁇ 9, more preferably m ⁇ 20.
  • n ⁇ 2, n representing the number of positions of the movement for which measurements are made.
  • the at least two positions of the movement are positions in which the orientation of the oscillator differs by 90 ° or by more than 90 °.
  • the at least two positions of the movement comprise four positions of the movement in which the axis of oscillation of the oscillator is horizontal or substantially horizontal and in which the orientations of the movement are spaced 90 ° from each other, in particular comprise the four vertical watch positions of the movement.
  • the measurements in free and maintained oscillation are equivalent.
  • the measurement in free oscillation is however more favorable because it avoids measuring the effect of the escapement. It is also possible to envisage subtracting from the measured curves the signature (theoretical or measured) of the hairspring alone (and / or of the escapement in maintained mode) in order to correct only the effects due to the unbalance of the balance.
  • the first and second counters may not have a physical reality in the implementation of the method. They are there to translate the logic of the process and its implementation. It is clear that they can translate the consciousness of an operator who knows that he must carry out measurements for a given series of positions of the movement and for a given series of amplitudes of the oscillations of the oscillator.
  • the amplitudes do not need to be exactly the same for the measurements made in the different positions.
  • steps 131, 161, 171 and 201 are respectively identical to steps 160, 130, 170 and 200.
  • the procedure can be carried out as shown in figure 10a . Indeed, it is more practical and faster to carry out measurements for different positions at a given amplitude, before modifying the amplitude to carry out measurements in other positions of the movement.
  • the amplitude interval considered can be extended, for example up to 400 °, which corresponds to the second amplitude value for which the effect of unbalance is canceled. Therefore, for such an extended amplitude interval in free oscillation mode, the amplitudes are preferably included in the interval] 200 °; 400 ° [, preferably included in the interval] 150 °; 400 ° [, more preferably still included in the interval] 100 °; 400 ° [.
  • the number of measurements is m ⁇ 9, more preferably m ⁇ 20.
  • an unbalance characteristic of a spiral balance oscillator of a watch movement is determined.
  • the unbalance characteristic is determined according to the determination method according to the invention or according to the embodiments of the determination method described above.
  • the unbalance of the oscillator is modified.
  • the oscillator or the spiral balance assembly can be modified by conventional means of removing material (milling, laser ablation, or other), adding material (laser deposition, inkjet deposition, or other) or material displacement (displacement of a weight or other).
  • the modification of the unbalance can be carried out in order to obtain a given unbalance value and orientation, in particular a zero or substantially zero value of the unbalance.
  • the figure 4 shows an example, with a movement of which the oscillator shows an apparent unbalance in movement, after assembly of the hairspring and assembly in movement, of 10.5 ⁇ g.cm according to the measurement in free oscillation. After careful milling, the apparent unbalance was reduced to a value of less than 0.2 ⁇ g.cm.
  • the effect on the walking curves is significant and clearly demonstrates the interest of the method for improving the chronometric performance of the movement.
  • the figures 5 and 6 show the two gait measurements as a function of the amplitude in free oscillation corresponding to the two states illustrated in figure 4 , before implementation of the adjustment method and after implementation of the adjustment method. It can be seen that the operating differences between positions, in particular between vertical positions, are very strongly tightened by the adjustment of the apparent unbalance.
  • the figure 7 illustrates the effect for a balance provided with two weights only arranged at 180 ° to each other.
  • the circles around the unbalance values represent an estimate of the measurement error.
  • the adjustment range is typically ⁇ 10 ⁇ g.cm around the origin.
  • FIGS. 8 and 9 show an example for a balance provided with two pairs of two weights of different mass, each pair being placed face to face.
  • the apparent unbalance in the initial state ( figure 8 ) is 8.8 ⁇ g.cm.
  • the total correction to be applied was estimated at a rotation of 0.7 turns for the weight located in the 3H direction of the movement, 0.07 turns for the weight 6H, -0.7 turn for the weight 9H and -0.07 turn for the weight 12H.
  • the apparent unbalance after this correction is 0.6 ⁇ g.cm ( figure 9 ), which again represents a remarkable improvement, which is clearly visible on the gait measurements as a function of amplitude.
  • the unbalance characteristic is such that the modification of the oscillator by removing this unbalance characteristic of the balance has the consequence of minimizing a criterion representative of an accumulation, for the different amplitudes, of the differences in data representative of the period of oscillation of the balance in the various positions of the oscillator.
  • the invention also relates to a balance or a sprung balance oscillator obtained by implementing the adjustment method according to the invention.
  • the invention also relates to a movement comprising such a balance-spring oscillator.
  • a timepiece in particular a watch, comprising such a movement, such a movement or such a balance or such a balance-spring oscillator.
  • the method for determining the unbalance characteristic comprises step 160 or 161, this step includes the following sub-steps described in figure 12
  • the oscillator is set in oscillation, the oscillator being able to oscillate freely, for example by removing the anchor from the movement, or by mounting the balance-spring oscillator on a resting allowing it to oscillate freely.
  • a second optional sub-step 320 the oscillations are stopped.
  • the method for determining the unbalance characteristic comprises step 170 or 171, this step includes the following sub-step described.
  • a third sub-step 330 the data representative of the period is measured while the amplitude of the oscillation movement of the oscillator decreases.
  • the oscillator is placed in a free oscillation mode, then the data representative of the period is measured while the amplitude of the oscillation movement of the oscillator decreases.
  • the method may include a step of measuring the amplitude of the oscillation movement. This measurement of the amplitude, like that of the period of oscillation, can be carried out by an optical measuring device.
  • the steps for measuring the period and / or the amplitude can be carried out at regular time intervals. Thus, at each time step, the oscillation period and / or the oscillation amplitude associated with this period are determined.
  • the steps for measuring the period can be carried out at regular amplitude intervals or at given amplitudes.
  • the steps for measuring the period can be carried out at regular amplitude intervals or at given amplitudes.
  • the term “rate” is understood to mean the instantaneous rate of the movement or of the timepiece, that is to say its rate at the instant of observation.
  • the diurnal rate which is the difference of two states of the timepiece separated by an interval of 24 hours (in other words the difference in display of a timepiece between two separate instants exactly 24 hours) assuming that the instantaneous rate will not change for 24 hours.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Balance (AREA)
  • Electric Clocks (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Claims (11)

  1. Verfahren zum Einstellen einer Uhr, die einen Oszillator (3) mit Unruh (4) und Spirale (5) beinhaltet, oder eines Uhrwerks, das einen Oszillator (3) mit Unruh (4) und Spirale (5) beinhaltet, oder eines Oszillators (3) mit Unruh (4) und Spirale (5), das Folgendes beinhaltet:
    - eine Phase des Berechnens eines Unwuchtvektors des Oszillators (3) mit Unruh (4) und Spirale (5), der durch seine Norm und seine Richtung ausgedrückt wird, wobei die Phase des Berechnens des Verfahrens mindestens die folgenden Schritte beinhaltet:
    - Versetzen des Unruh-Spirale-Oszillators in Oszillationsbewegung mit mindestens zwei Amplituden,
    - Messen, für jede Amplitude und für mindestens zwei Positionen des Oszillators, einer repräsentativen Größe der Oszillationsperiode des Oszillators, dann
    - Benutzen der Größen des vorhergehenden Schritts, um den Unwuchtvektor des Unruh-Spirale-Oszillators zu berechnen,
    wobei das Einstellverfahren anschließend den folgenden Schritt beinhaltet:
    - Modifizieren der Unruh, um alle Unwucht aus der Unruh zu eliminieren.
  2. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Schritt des Messens einer repräsentativen Größe der Oszillationsperiode des Oszillators Messungen beinhaltet, die bei freier Oszillation durchgeführt werden.
  3. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass es im Vorfeld den folgenden Schritt beinhaltet:
    - Entfernen eines Hemmungsorgans, insbesondere eines Ankers, des Werks oder Anbringen des Oszillators auf einem Gestell, auf dem er frei oszillieren kann.
  4. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schritt des Benutzens der Größen das Berechnen des Unwuchtvektors anhand einer Formel, die die während des Messschritts gemessenen Größen verwendet, beinhaltet.
  5. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Messschritt Messungen beinhaltet, die in einem Amplitudenbereich durchgeführt werden, dessen extreme Amplitudenpegel um 30°, vorzugsweise um 50°, noch bevorzugter um 100° beabstandet sind; mit mindestens zwei Amplitudenwerten, die sich zu beiden Seiten von 220° befinden, wobei die Amplituden in dem Intervall ]200°; 280°[ enthalten sind, vorzugsweise in dem Intervall ]150°; 280°[ enthalten sind, noch bevorzugter in dem Intervall ]100°; 300°[ enthalten sind.
  6. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die mindestens zwei Positionen des Oszillators Positionen sind, in denen die Oszillationsachse des Oszillators horizontal oder im Wesentlichen horizontal ist.
  7. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die mindestens zwei Positionen des Oszillators Positionen sind, in denen die Ausrichtung des Oszillators um 90° oder um mehr als 90° abweicht.
  8. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die mindestens zwei Positionen des Oszillators vier Positionen des Werks beinhalten, in denen die Oszillationsachse des Oszillators horizontal oder im Wesentlichen horizontal ist und in denen die Ausrichtungen des Werks um 90° voneinander versetzt sind, insbesondere die vier vertikalen Uhrpositionen des Werks beinhalten.
  9. Verfahren nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass für das Berechnen des Unwuchtvektors eine oder mehrere der drei folgenden Formeln verwendet werden: bx = I ⋅ 2 πf 2 2 ⋅ 86400 ⋅ g ⋅ ∑ θ J 1 θ θ ⋅ 3 H θ − 9 H θ ∑ θ J 1 θ θ 2
    Figure imgb0010
     by = I ⋅ 2 πf 2 2 ⋅ 86400 ⋅ g ⋅ ∑ θ J 1 θ θ ⋅ 6 H θ − 12 H θ ∑ θ J 1 θ θ 2
    Figure imgb0011
     b = bx 2 + by 2 = I ⋅ 2 πf 2 ⋅ ∑ θ J 1 θ θ ⋅ 3 H θ − 9 H θ 2 + ∑ θ J 1 θ θ ⋅ 6 H θ − 12 H θ 2 2 ⋅ 86400 ⋅ g ⋅ ∑ θ J 1 θ θ 2
    Figure imgb0012
     wobei:
    b: die Norm des Unwuchtvektors ist,
    bx: die Komponente des Unwuchtvektors entlang der x-Achse ist,
    by: die Komponente des Unwuchtvektors entlang der y-Achse ist,
    I: die Trägheit der Unruh ist,
    J1: die Bessel-Funktion der Ordnung 1 ist,
    θ: die Amplitude der Oszillationsbewegung in [rad] ist, 3H(θ), 6H(θ), 9H(θ) und 12H(θ): die Gangwerte in den vier vertikalen Uhrpositionen des Oszillators sind (beispielsweise ausgedrückt in Sekunden pro Tag),
    wobei die x- und die y-Achse den Richtungen 9H und 12H entsprechen.
  10. Verfahren nach einem der vorhergehenden Ansprüche, wobei der Schritt des Versetzens des Unruh-Spirale-Oszillators in Oszillationsbewegung die folgenden Unterschritte beinhaltet:
    - Versetzen des Oszillators in Oszillationsbewegung,
    - Aufhören, die Oszillationen aufrechtzuerhalten, und dass der Schritt des Messens einer repräsentativen Größe der Oszillationsperiode des Oszillators den folgenden Unterschritt beinhaltet:
    - Messen der repräsentativen Größe der Periode, während die Amplitude der Oszillationsbewegung des Oszillators abnimmt.
  11. Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es einen Schritt des Messens der Amplitude der Oszillationsbewegung beinhaltet.
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EP13731342.5A EP2864844B1 (de) 2012-06-26 2013-06-25 Verfahren zur bestimmung einer unwuchteigenschaft eines oszillators
PCT/EP2013/063292 WO2014001341A1 (fr) 2012-06-26 2013-06-25 Procédé de détermination d'une caractéristique de balourd d'un oscillateur

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SG11201806735QA (en) * 2016-03-23 2018-09-27 Patek Philippe Sa Geneve Balance-hairspring oscillator for a timepiece
EP3339984B1 (de) * 2016-12-22 2019-10-16 The Swatch Group Research and Development Ltd Intelligente vorrichtung zum aufziehen von armbanduhren
EP3913441B1 (de) * 2020-05-22 2024-05-01 Patek Philippe SA Genève Oszillator für eine uhr
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JP2015525871A (ja) 2015-09-07
US20150338829A1 (en) 2015-11-26
WO2014001341A1 (fr) 2014-01-03
JP6254584B2 (ja) 2017-12-27
CN104520775A (zh) 2015-04-15
US10120341B2 (en) 2018-11-06
EP2864844A1 (de) 2015-04-29
CN104520775B (zh) 2017-07-21

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