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In this paper, the effect mechanism of environmental temperature on the sensitivity of the airflow level posture sensor is explained. Using ANSYS-FLOTRAN CFD program, the temperature field and the stream field in sensing element of the sensor under the effect of the different temperatures with tilt angle of 10deg/S, has been obtained by a series of procedure, such as model building, meshing, loads...
The temperature and fluid fields in a sense organ with different environmental temperatures are calculated by using Finite Element Method. The results are as follow: In a constant input of angular velocity, the temperature and fluid fields change with environmental temperature and fluid fields change with environmental temperature; The airflow rate difference of two detecting hot wires minishes with...
The sensitive mechanism of micro- machined airflow accelerometer is explained. Using the finite element method, the stream field by heat source, with different input accelerations, has been obtained. The numerical results are as follows: Without acceleration, the velocities of airflow at two thermistors are equal, so the current of both thermistors are also equal. The output of the bridge circuit...
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