A coulter counter is a device that measures changes in impedance when a particle passes through an orifice placed between two electrodes. The impedance change is proportional to particle volume. The particle size can also be measured via light scattering. Here, the intensity of scatter from a particle is proportional to the square of its size. The goal of this project is to build an integrated flow cell that can integrate both these measurements. The project would involve both simulations and experiments.