Note
Struttura
Testing the
Equivalence Principle
on Earth and in space
Equivalence of inertial-to-gravitational mass
Galileo (I)
Galileo (II)
Newton
Eötvös
Einstein (I)
Einstein (II)
Einstein (III)
Scientific relevance of the Equivalence Principle (II)
Scientific relevance of the Equivalence Principle (III)
Scientific relevance of the Equivalence Principle (IV)
Where are we? The ground tests after Eötvös
Where are we? EP tests by LLR
What next?
The international context
The mission concepts
Test masses suspension (I)
Test masses suspension (II)
Accelerometer design: the STEP case (I)
Accelerometer design: the STEP case (II)
Accelerometer design: the mSCOPE case
“Free“ test cylinders not possible…
Accelerometer design: the GG case (I)
Accelerometer design: the GG case (II)
GG: the s/c around the accelerometer (I)
GG: the s/c around the accelerometer (II)
GG: main novelties and advantages (I)
GG: main novelties and advantages (II)
EP tests in LEO: the most subtle disturbance (I)
EP tests in LEO: the most subtle disturbance (II)
Unstable whirl motions:
slow if Q factor high; can be damped
Whirl damping in GG (I)
Whirl damping in GG (II)
GG: error budget consistent with EP testing to 10-17

     (GG Phase A Study Report, ASI Nov 1998; 2nd Edition Jan. 2000; GG Advanced Pahse A Study, 2002)
Ground test of proposed space apparatus
GGG prototype: overview
GGG prototype: test cylinders coupled by the suspensions
GGG prototype: test cylinders coupled by  read out too
GGG prototype: the central suspension
GGG prototype: verticality of  shaft
GGG prototype: the read out (I)
GGG prototype: the read out (II)
GGG prototype: the read out (III)
GGG prototype: the read out (II)
GGG prototype: calibration of read out
GGG prototype: the reference signal (I)
GGG prototype: the reference signal (II)
GGG prototype: the reference signal (III)
GGG  prototype: damping of whirl motions (I)
GGG  prototype: damping of whirl motions (II)
GGG: results  from first generation prototype (I)
GGG: results  from first generation prototype (II)
GGG: results  from first generation prototype (III)
GGG: results  from first generation prototype (IV)
GGG: results  from first generation prototype (V)
GGG: results  from first generation prototype (VI)
GGG: 2nd generation prototype
GGG: 2nd generation prototype
GGG: 2nd generation prototype (II)
GGG: 2nd generation prototype (III)
GGG: 2nd generation prototype (IV)
GGG: 2nd generation prototype (V)
GGG: 2nd generation prototype (VI)
GGG: 2nd generation prototype (VII)
GGG: 2nd generation prototype (VIII)
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