A new type of vortex flow transmistter for gas is proposed in order to improve measuring performances and simplify the construction of the measuring system. The transmistter consists of signal measuring unit and signal processing unit based on a single chip processor.The temperature and pressure of gas and the vortex frequency are measured by signal measuring unit simultaneously. The flow signal is compensated with temperature and pressure signals in parallel with nonlinearity modification by software to decrease measuring errors.The experiment results show th...
