INSIBIO   05451
INSTITUTO SUPERIOR DE INVESTIGACIONES BIOLOGICAS
Unidad Ejecutora - UE
artículos
Título:
Design and Construction of a Photoresistive Sensor for Monitoring the Rat Vibrissal Displacement
Autor/es:
DURING, FEDERICO; ALBARRACÍN, ANA LIA; FARFÁN, FERNANDO; FELICE, CARMELO JOSÉ
Revista:
JOURNAL OF NEUROSCIENCE METHODS
Referencias:
Año: 2008
ISSN:
0165-0270
Resumen:
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The rats move their vibrissae rhythmically and
coordinately in order to acquire tactile information of their environment. The
vibrissa movement has been a matter of concern for several researchers over the
last few years. The design and construction of a novel photoresistive sensor,
to register the complete horizontal vibrissa trajectory is presented in this
paper. This device consists basically of a LEDs array and a light dependent
resistance (LDR) covered by a variable transparence mask. When the vibrissa is
located among these elements, it generates a shadowy line over the
photosensitive material, and thus, it changes the LDR electrical resistance. These changes are transduced
in voltage variation. The assays and measurements have shown that this sensor
in suitable for this objective and is highly simple and inexpensive.