An active device for volumetric measurement of drop nucleation in a superheated emulsion detector

Abstract

An active volumetric device for active detection and measurement of drop nucleation of superheated emulsions is described. The drop nucleation is detected by an optical arrangement using a pair of a laser and a light-dependent resistor (LDR). The electric pulses from LDR are converted into binary pulses for counting. The device senses a volume change as low as 0.55 mu L, and provides a fast data acquisition facility.