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The objective of this study is to obtain a better understanding about the momentum rate of an industrial effervescent atomization.The spray is injected through an industrial patented effervescent nozzle and is measured using an impulse probe.Momentum rate measurement of microscale droplets in multiphase atomization is a challenging task.The advanced laser diagnostics such as the Phase Doppler Particle Anemometer(PDPA)are not capable of accurately measuring the droplet momentum rate in a dense spray due to the high rejection of nonspherical droplets by the PDPA.The momentum rate measurement by the impulse sensor provides a fairly reasonable estimate of momentum rate in effervescent atomization.The momentum rate data helps in accurately calculating mass flux and volume fraction in multiphase dense spray,which is very beneficial to the design of industrial multiphase nozzles.