但已存在的传统组件模型很少考虑诸如实时性等非功能性约束，并不能很好的适应DS P上开发的需要。
Unfortunately, the existed traditional component models have little consideration about the non-functional constrains. It is not a good adaptation for DSP development.
如实时设定的实际采样率和压力传感器零点、对传感器校准与标定的正确性等诸因素均可影响实测数据的精度。
Important factors include the sampling rate, the zero point of pressure sensor, and the correct calibration of sensor, the revised program and algorism may improve the precision of measurement.
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