PERANCANGAN ALAT PENGUKUR LEMAK SUSU CAIR DENGAN METODE SPEKTROFOTOMETRI
Abstract
Research on "Design of Tool Measuring Liquid Milk Fat With Spectrophotometric
Method" is a measurement of the levels of the fat contained in every 500ml of liquid
milk. The samples which used are milk powder packaging with information
30gr/180ml = 14% a fat content. Hopefully with these tools, measuring liquid milk fat
more easily and efficiently so it does not need to perform chemical measurements. By
using this method the absorption of light sensor used is LED and photodiode. This
sensor detects the intensity of light passing through the milk and then processed by a
microcontroller ATMega 8535. The results of measurements of fat content will
display on the LCD with units of percentage (%). There is a linear relationship
between the absorption of the light with the concentration of the solution. This
research uses 4 samples with different fat levels, the sample no.1 = 5.04% = 8.4%
sample no.2, no.3 sample = 13.44%, and the sample no.4 = 16.8%. The results of
measurements of fat content using a tool is sample no.1 = 6%, sample No. 2 = 9%, =
13% sample no.3 and no.4 sample = 15%. The measurement reach from this tool is
1% - 19% with an average error of 9.75% percent.
Collections
- UT-Faculty of Engineering [4163]