DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER

DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER

This research aims to make turbidity instrument using light transmission method. Turbidity measurement that there during the time tends to isolate the measuring instrument from external light interference. Turbidity measurement with this instrument utilizes a laser as a light source that is passed t...

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Main Author: KURNIAWATI (NIM: 90214013), ADE
Format: Theses
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/20713
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:20713
spelling id-itb.:207132017-11-20T11:39:59ZDESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER KURNIAWATI (NIM: 90214013), ADE Indonesia Theses INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/20713 This research aims to make turbidity instrument using light transmission method. Turbidity measurement that there during the time tends to isolate the measuring instrument from external light interference. Turbidity measurement with this instrument utilizes a laser as a light source that is passed to the sample and a photodiode is usec to capture light transmission. This instrument uses a Lock-In Amplifier for reading signal buried in noise or external light interference. This instrument was calibrated by formazin polymer suspension with a range 1-9 NTU, 10-100 NTU, and 500-4000 NTU. This instrumen was tested by measuring the standard of 3000 NTU and obtained a relative error about 13,42 % on a red laser and 14,81% for the green laser. In this study also examines the scattering of light by formazin polymer suspension at an angle 90o. This instrument can be further developed for the study of particles in the water. text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
description This research aims to make turbidity instrument using light transmission method. Turbidity measurement that there during the time tends to isolate the measuring instrument from external light interference. Turbidity measurement with this instrument utilizes a laser as a light source that is passed to the sample and a photodiode is usec to capture light transmission. This instrument uses a Lock-In Amplifier for reading signal buried in noise or external light interference. This instrument was calibrated by formazin polymer suspension with a range 1-9 NTU, 10-100 NTU, and 500-4000 NTU. This instrumen was tested by measuring the standard of 3000 NTU and obtained a relative error about 13,42 % on a red laser and 14,81% for the green laser. In this study also examines the scattering of light by formazin polymer suspension at an angle 90o. This instrument can be further developed for the study of particles in the water.
format Theses
author KURNIAWATI (NIM: 90214013), ADE
spellingShingle KURNIAWATI (NIM: 90214013), ADE
DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER
author_facet KURNIAWATI (NIM: 90214013), ADE
author_sort KURNIAWATI (NIM: 90214013), ADE
title DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER
title_short DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER
title_full DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER
title_fullStr DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER
title_full_unstemmed DESIGN OF TURBIDITY INSTRUMENT USING LIGHT TRANSMISSION METHOD WITH LOCK-IN AMPLIFIER
title_sort design of turbidity instrument using light transmission method with lock-in amplifier
url https://digilib.itb.ac.id/gdl/view/20713
_version_ 1822919938788032512

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