郝瑞参,李德才,顾春光,贾俊良.磁流体的性质对压差传感器输出性能的影响研究*[J].电测与仪表,2014,51(21):. HAO Rui-can,LI De-cai,GU Chun-guang,JIA Jun-liang.Research on the Influence of Ferrofluid Properties on Output Performance of Differential Pressure Sensor[J].Electrical Measurement & Instrumentation,2014,51(21):.
磁流体的性质对压差传感器输出性能的影响研究*
Research on the Influence of Ferrofluid Properties on Output Performance of Differential Pressure Sensor
Four different kinds of ferrofluid, which were applied into the experiment of differential pressure sensor, were prepared by chemical co-precipitation method. The density, viscosity and magnetization intensity of ferrofluid were analyzed and the influence of the parameters on the differential pressure sensor were measured in experiments which were designed to verify the theory analysis. The relation between the sensitivity of differential pressure sensor and the density and magnetization of ferrofluid were linear in a certain range. but with increasing of density and magnetization, the curve gradually leveled off when the ferrofluid was saturated. The Sensor response time was lengthened with the increasing of viscosity of the ferrofluid.
