STATIC PRESSURE TUBE APPARATUS, METHOD, AND SYSTEM

摘要

An apparatus, system, and method for measuring static pressure in a warm gas flow while minimizing particulate deposit formation includes a housing (510) containing the flow of gas (578), a pressure sensor (526), and a heated pressure sampling tube (522) attached to the sensor (526), with the tube (522) sampling the gas flow (518). The heated sampling tube (522) reduces the temperature gradient between the gas and the tube (522), reducing thermophoretic forces that contribute to deposit formation. The sampling tube (522) extends through the housing (510) into the gas flow (518) in one embodiment, enabling the gas to heat the tube (522) and locating the open end of the tube (522a) in a higher-flow area of the gas, further reducing deposit formation.