Measurement of refractive index of PF-5060

For optical studies of boiling heat transfer process, it is essential that the refractive index and its dependence on temperature for the test liquid be known. In this work a simple set-up was built to measure the refractive index of Fluorinert Liquid PF-5060 with temperature compensation and temper ature control. The pinhole laser light beam was used for determining the re fraction angle. The refractive index data obtained in the temperature range 0-60 degrees C is found to correlate linearly with temperature. (C) 1999 E lsevier Science Inc. All rights reserved.