根据提供的文本，使用GPT模型生成一段类似于原文的摘要。


原文：Researchers at a University have developed a new COVID-19 detection method that can be run in less than one second, using either a simple smartphone microscope or a microscope that costs less than $50. The method uses a piezoelectric transducer, an electronic component capable of transforming electricity into ultrasound waves, to detect tiny droplets resulting from coughing or sneezing.
A new COVID-19 detection method has been developed that can be used with a simple smartphone microscope or an inexpensive microscope. The method uses a piezoelectric transducer to detect droplets from coughing or sneezing and can be completed in less than one second.