A novel optical Doppler velocimeter using a self-mixing superluminescent diode is proposedand demonstrated. The operation mechanism uses the photodiode on the back-face of acommercial superluminescent diode to detect the Doppler signal from an interferometer.Thanks to the low coherence length of the optical source, the position of the measuring volumecan be easily moved into the sample under test by adjusting the reference arm length, thusallowing us to measure the velocity profile of the flowing scatterers even in turbid media. Theproposed velocimeter is expected to have several industrial as well as medical applications.

Measurement of the fluid-velocity profile using a self-mixing superluminescent diode / Rovati, Luigi; Cattini, Stefano; Palanisamy, Nithiyanantham. - In: MEASUREMENT SCIENCE & TECHNOLOGY. - ISSN 0957-0233. - STAMPA. - 22(2011), pp. 025402-025402 (9pp). [10.1088/0957-0233/22/2/025402]

Measurement of the fluid-velocity profile using a self-mixing superluminescent diode

ROVATI, Luigi;CATTINI, Stefano;PALANISAMY, NITHIYANANTHAM
2011

Abstract

A novel optical Doppler velocimeter using a self-mixing superluminescent diode is proposedand demonstrated. The operation mechanism uses the photodiode on the back-face of acommercial superluminescent diode to detect the Doppler signal from an interferometer.Thanks to the low coherence length of the optical source, the position of the measuring volumecan be easily moved into the sample under test by adjusting the reference arm length, thusallowing us to measure the velocity profile of the flowing scatterers even in turbid media. Theproposed velocimeter is expected to have several industrial as well as medical applications.
22
025402
025402 (9pp)
Measurement of the fluid-velocity profile using a self-mixing superluminescent diode / Rovati, Luigi; Cattini, Stefano; Palanisamy, Nithiyanantham. - In: MEASUREMENT SCIENCE & TECHNOLOGY. - ISSN 0957-0233. - STAMPA. - 22(2011), pp. 025402-025402 (9pp). [10.1088/0957-0233/22/2/025402]
Rovati, Luigi; Cattini, Stefano; Palanisamy, Nithiyanantham
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11380/684080
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