Basic Study Of Virtual Instrument

With the continuous development of modern science technology and economy, various measure and test instruments are required to accomplish more and more complicated jobs in measuring, monitoring and automatic manufacturing. And the demand for measure technology and test equipment is getting higher. As a result, the testing cost increases by a wide margin. In recent years, a new measure technology that combines the technologies of electronic, technologies of computer, technologies of network, is developed and this new technology is named VI.In this paper, a based-computer measuring system was formed by using the equipments of NI . In this system , rotate speed and torque could be measured quickly and easily . By the researches of VI it was proved that this way of measuring is convenient reliable and effective.