An accelerometer for spaceborne application with interferometric readout

Pisani, Marco; Zucco, Massimo; Nobili, A. M.

doi:10.1016/j.measurement.2018.03.014

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…The PRA is compact (200 × 200 × 100 mm), is easily transportable and has been mainly designed to calibrate high-resolution interferometers. Recently the device has been used to calibrate the interferometers designed to be mounted on board of Galileo Galilei mission [49,50] and to be used in accelerometers for space missions [51]. Thanks to its long range and very low non-linearities, its use for the calibration of any kind of high performance displacement sensors for nanometrology, such as capacitive sensors, confocal optical probes and mechanical probes, is foreseen.…”

Section: Discussionmentioning

confidence: 99%

A portable picometer reference actuator with 100 µm range, picometer resolution, subnanometer accuracy and submicroradian tip-tilt error for the characterization of measuring instruments at the nanoscale

Pisani

Giugni

2018

Metrologia

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We present the realization and the characterization of a picometer reference actuator (PRA), a metrological instrument based on a precision linear actuator capable of 100 µm range with subnanometer accuracy, picometer resolution, and submicroradian tip-tilt pointing control. The PRA relies on an integrated multiple reflections homodyne interferometer as a high resolution and accurate internal reference, on a multiple reflection based angle sensor for the control of the movement straightness, and on a versatile mirrors configuration to transfer the metrological traceability to an external device. As an example case we report the use of the PRA for the characterization of the non-linearities of the INRIM heterodyne interferometer dedicated to the calibration of capacitive sensors.

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Section: Discussionmentioning

confidence: 99%

A portable picometer reference actuator with 100 µm range, picometer resolution, subnanometer accuracy and submicroradian tip-tilt error for the characterization of measuring instruments at the nanoscale

Pisani

Giugni

2018

Metrologia

Self Cite

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An interferometric inertial sensor for low-frequency seismic isolation

Ding

Zhao

Watchi

et al. 2022

Sensors and Actuators A: Physical

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Multi-frequency signal acquisition and phase measurement in space gravitational wave detection

Zhang,

Liu,

Dong

et al. 2024

Review of Scientific Instruments

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To enhance the accuracy of phase measurement and to prevent tracking errors, it is crucial to effectively read the multi-frequency signal in space gravitational wave detection. In this paper, a novel signal acquisition method called the multi-frequency acquisition algorithm is proposed and implemented. Different from the traditional single-frequency acquisition, the signal characteristics of amplitude and frequency are both considered to better distinguish different frequency components. A phasemeter integrated with the acquisition method and narrow-bandwidth digital phase-locked loop is constructed for the method test and verification. The results show that the multi-frequency acquisition unit can capture all the frequencies of an input signal in several milliseconds. The precision is better than ±200 Hz under a low SNR (signal-to-noise ratio) of 0 dB. The phase noise can reach 2 µrad/Hz1/2 in the frequency range of 0.1–1 Hz and satisfy the requirement of the space gravitational wave detection in all frequency ranges.

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An accelerometer for spaceborne application with interferometric readout

Cited by 5 publications

References 10 publications

A portable picometer reference actuator with 100 µm range, picometer resolution, subnanometer accuracy and submicroradian tip-tilt error for the characterization of measuring instruments at the nanoscale

A portable picometer reference actuator with 100 µm range, picometer resolution, subnanometer accuracy and submicroradian tip-tilt error for the characterization of measuring instruments at the nanoscale

An interferometric inertial sensor for low-frequency seismic isolation

Multi-frequency signal acquisition and phase measurement in space gravitational wave detection

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