Development of virtual instrument for measuring parameters of bioreactor

Importance of bioengineering and developing state of monitoring bioreactor have been introduced in this article and application of virtual instrument in this area is also presented.The virtual instrument we developed can online measure 9 parameters such as temperature,pressure,DO,pH,CO_2 concentration of exhaust gas,and exerts enough virtues of virtual instrument and avoids shortcoming of traditional hardware instrument.In this paper,basal construction of virtual measurement instrument of parameters of a bioreactor has been mostly discussed,and based on this,software design and hardwere framework of this virtual instrument have been described,and circuit for measuring and regulating temperature and pH is presented as an example.