Pasco CI-9784 UVA LIGHT SENSOR Manuel d'utilisateur télécharger pdf

Instruction Sheet

for the PASCO

Model CI-9784

UVA LIGHT SENSOR

012-07185B

Introduction

The PASCO CI-9784 UVA Light Sensor is designed to

be used with a PASCO computer interface to make

measurements of relative intensity of electromagnetic

radiation in the UVA band.

The UVA Light Sensor uses a fairly broad band Si

Photodiode for a sensing element. It is sensitive to

electromagnetic energy ranging from visible light to

above the UVA band. Since the radiation to be measured

by this sensor is the UVA band, the sesnor is furnished

with a UVA filter. This filter can be removed if broader

band measurements are to be made.

The Ultraviolet (UV) radiation band in the

electromagnetic spectrum extends from very short

wavelengths of 100 nm, just below the X-ray band, to

400 nm, which is just above violet light in the visible

region of the spectrum. This can be observed in Table 1.

The UV band is divided into four smaller bands according

to the nature of the radiation. The shortest wavelengths are

designated as the vacuum UV band (λ = 100-200 nm) so

called because energy in this band can only be studied in a

vacuum. This is because oxygen and other gas molecules

in air absorb radiation in this band.

The UVC band ranges from 200-280 nm. Essentially all

UVC radiation from the sun is absorbed or scattered by

ozone in the earth’s upper atmosphere and does not reach

the surface. UVB radiation (λ = 280-315 nm) from the sun

is also absorbed or scattered by the upper atmosphere but

under some conditions can reach the surface of the earth.

Table 1

Ultraviolet Spectrum

I-9

collimator

DIN connector

CI-9784

UVA Light Sensor

interface cable

with 8-pin DIN

connectors

to computer

interface

vacuum UV UVC UVB UVA

100-200nm 200-280nm 280-315nm 315-400nm

far UV near UV

Ultraviolet Band (

= 100 - 400nm)

1 2 3 4

Résumé du contenu

Page 1 - UVA LIGHT SENSOR

Instruction Sheetfor the PASCOModel CI-9784UVA LIGHT SENSOR012-07185BIntroductionThe PASCO CI-9784 UVA Light Sensor is designed tobe used with a PASCO

Page 2 - UVA Light Sensor

012-07185B2UVA Light SensorInterface50012GAIN=1,10:ISOLATEDGAIN =1,10: REF TO GNDGAIN = 1: REF TO GNDAsCONANALOG CHANNELSBnDIGITAL CHANNELSScienceWo

Page 3

012-07185BUVA Light Sensor3Figure 5Mounting connector and alignment holeFigure 4Setting the gain on the Light Sensor1/4–20 threadedconnectoralignment

Page 4

012-07185B4UVA Light Sensor143526788-pin DIN Connector Specifications1: analog output (+), 0 to 5 V2: analog output (-), signal ground3: (no connectio

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Pasco CI-9784 UVA LIGHT SENSOR Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement Pasco CI-9784 UVA LIGHT SENSOR. PASCO CI-9784 UVA LIGHT SENSOR User Manual Manuel d'utilisatio

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