Valve control via wireless: There are ways to overcome the significant and variable delays in signal transmission

摘要

Abroad range of wireless transmitters are available for continuous measurements, such as pressure, temperature, flow and level, as well as analytical measurements such as pH. Wireless discrete transmitters are also available that may be used to monitor the state of a process operation. Based on the broadening acceptance of wireless transmitters, manufacturers have developed and introduced wireless actuators for on/off valves. Wireless adaptors are also available that enable control to be implemented with throttling valves equipped with digital valve positioners. Using this capability, continuous and discrete control may be addressed using wireless transmitters and wireless valves.