Über das Relativitätsprinzip und die aus demselben gezogenen Folgerungen

Meÿenn, Karl von

doi:10.1007/978-3-322-83770-7_6

Cited by 11 publications

(16 citation statements)

References 5 publications

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“…The ψ. The total force exerted by the four Y electrodes along Y is evaluated with the applied voltage on each 'Y ks ' electrode defined by (−s v y + s(2k − 3)v ψ + V p y ) in equation (1) and derivating equation (4) with respect to y at first order of y:…”

Section: Force and Torque Equationsmentioning

confidence: 99%

“…The impact of X and Φ on the rotation has to be considered through the force multiplied by the lever arms defined by the centre of electrodes. For X, the force exerted by the electrode along Y or Z at a distance 1 2 (L p − h) from the Y or Z axis leads to a torque. In the same way for Φ electrodes, the lever arm is 1 4 L φ .…”

Section: Force and Torque Equationsmentioning

confidence: 99%

“…For X, the force exerted by the electrode along Y or Z at a distance 1 2 (L p − h) from the Y or Z axis leads to a torque. In the same way for Φ electrodes, the lever arm is 1 4 L φ . Here, L p is the test-mass length and L φ the Φ electrode length.…”

Section: Force and Torque Equationsmentioning

confidence: 99%

“…The MICROSCOPE (Micro-Satellite à traînée Compensée pour l'Observation du Principe d'Equivalence) mission was fully dedicated to the in-orbit test of the Universality of free fall, the so-called weak equivalence principle (WEP) [1,2]. The accuracy objective was expected to be better than 10 −15 [3].…”

Section: Introductionmentioning

confidence: 99%

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MICROSCOPE instrument description and validation

Rodrigues

Liorzou

Touboul

et al. 2022

Class. Quantum Grav.

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This paper focuses on the dedicated accelerometers developed for the MICROSCOPE mission taking into account the specific range of acceleration to be measured on board the satellite. Considering one micro-g and even less as the full range of the instrument with an objective of one femto-g resolution, that leads to a customized concept and a high-performance electronics for the sensing and servo-actuations of the accelerometer test-masses. This range and performance directed the payload development plan. In addition to a very accurate geometrical sensor core, a high performance electronics architecture provides the measurement of the weak electrostatic forces and torques applied to the test-masses. A set of capacitive detectors delivers the position and the attitude of the test-mass with respect to a very steady gold-coated cage made in silica. The voltages applied on the electrodes surrounding each test-mass are finely controlled to generate the adequate electrical field and so the electrostatic pressures on the test-mass. This field maintains the test-mass motionless with respect to the instrument structure. Digital control laws are implemented in order to enable instrument operation flexibility and a weak position detector noise. These electronics provide both the scientific data for MICROSCOPE’s test of the weak equivalence principle and the input for the satellite drag-free and attitude control system.

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Section: Force and Torque Equationsmentioning

confidence: 99%

Section: Force and Torque Equationsmentioning

confidence: 99%

Section: Force and Torque Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

MICROSCOPE instrument description and validation

Rodrigues

Liorzou

Touboul

et al. 2022

Class. Quantum Grav.

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“…In analogy to the situation a shorter wavelength leads in a optical medium to a lower speed of light, Einstein assumed the clocks in gravitational field run slower, the corresponding frequencies being influenced by the gravitational potential 4 . Einstein went through several versions of light speed theory, eventually concluding that speed of light cannot be regarded as constant in a changing gravity field, and he intended to described the light-speed as a vector.…”

Section: Introductionmentioning

confidence: 99%

The Emission Mechanism of Gamma-ray Bursts from Supernovae

Postavaru¹,

Crăciun²

2021

Preprint

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The connection between gamma ray bursts and supernovae is studied using a temperature-dependent vacuum model. A harmonically bound particle-antiparticle system is consistent with both Hawking radiation and Casimir effect, therefore, the Maxwell-Sellmeier model correlates the speed of light to temperature. According to quantum field theory, Lorentz invariance is violated only for temperatures larger than $4\times10^9$ K. Introducing in the temperature distribution of a 2D simulation for a type Ia supernova the speed of light temperature dependence proposed in this article, results a speed of light distribution. A theoretical snapshot of this distribution at an arbitrary distance is consistent with photon photo finish resulted from experiments. Variable speed of light shows that supernova is accompanied by gamma-ray bursts.

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The case of the Doppler effect for photons revisited

Redžić¹

2013

Eur. J. Phys.

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A detailed account is presented of the Doppler effect as a photon phenomenon, complementing a recent paper by Giuliani (2013 Eur. J. Phys. 34 1035–47). The essence of Schrödinger's pioneering derivation (1922 Phys. Z. 23 301–3) of a Doppler formula in terms of the corpuscular theory of light, using energy–momentum conservation, is related. Some neglected references that put the whole scene around the Ives–Stilwell experiment into a more precise perspective are highlighted. Atoms as clocks and particle–wave complementarity are also discussed briefly.

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Über das Relativitätsprinzip und die aus demselben gezogenen Folgerungen

Cited by 11 publications

References 5 publications

MICROSCOPE instrument description and validation

MICROSCOPE instrument description and validation

The Emission Mechanism of Gamma-ray Bursts from Supernovae

The case of the Doppler effect for photons revisited

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