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How do you check a start capacitor without a multimeter?

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Pulse-width modulation

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Journal Article•DOI A novel technique to determine the required capacitance for a single phase induction motor by applying roundness algorithm Umar Tabrez Shami 01 Aug 2019-Measurement 4 Citations	This research paper presents a novel technique to determine the required value of capacitor used in a capacitor-run single phase induction motor.
Journal Article•DOI Modular Multilevel Converter With an Adaptive Observer of Capacitor Voltages Hamed Nademi, Anandarup Das, Lars Norum - Show less +2 more 01 Jan 2015-IEEE Transactions on Power Electronics 93 Citations	It may be used for predictive control, condition monitoring for capacitors, and diagnosis check for capacitor health.
Journal Article•DOI Application of an Efficient Rogowski Coil Sensor for Switch Fault Diagnosis and Capacitor ESR Monitoring in Nonisolated Single-Switch DC–DC Converters Ebrahim Farjah, Hadi Givi, Teymoor Ghanbari - Show less +2 more 01 Feb 2017-IEEE Transactions on Power Electronics 82 Citations	Furthermore, a new capacitor lifetime monitoring technique is proposed, which employs this signal for calculating equivalent series resistance of the capacitor.
Journal Article•DOI Active damping of LCL filter at low switching to resonance frequency ratio Anirban Ghoshal, Vinod John - Show less +1 more 01 Apr 2015-Iet Power Electronics 49 Citations	The method extracts resonance frequency capacitor current from sensed capacitor voltage in a per phase manner and does not need any additional sensors.
Journal Article•DOI On the measurement of plasma power in atmospheric pressure DBD plasma reactors Marcin Holub 01 Jan 2012-International Journal of Applied Electromagnetics and Mechanics 65 Citations	Measurement capacitor value should be of comparable capacitance to reactors overall capacitance, a pulsed technology capacitor should be used for measurements.
Journal Article•DOI A Theoretical minimum DC-link capacitance in PWM converter-inverter systems B.G. Gu, K. Nam - Show less +1 more 22 Feb 2005 42 Citations	A matching control method making the capacitor current zero suggests the possibility of using a tiny DC-link capacitor.
Proceedings Article•DOI Cost-benefit approach to degradation of electrolytic capacitors Barbaros Kirisken, H. Fatih Ugurdag - Show less +1 more 17 Apr 2014 22 Citations	Results show that the optimized capacitor is not the cheapest, most expensive, or most reliable one; optimal capacitor is a modest Chinese “CAP.

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