A Research for mearement of pumping speed of mini-ionpump;

Research into sampling measurement with two-computer cooperation and multiple sampling;

Sampling Measurement Research for Traffic of Campus Network Export Based on Mask Matching;

Research of Sampling Measurement System for IP Network Traffic Based on Mask Matching;

<Abstrcat>A survey of the development of network measurement is made,and then the status quo is introduced and analyzed in methods of traffic measurement,traffic sampling measurement and traffic measurement model in the world.

Realization of depth measurement and velocity measurement with high precision.;

Control and velocity measurement of multi-stage reconnection gun;

The principles and experimental methods of both velocity measurements including the electromagnetic induction,the rotary 2-disc,the Laser-2-Focus Velocimeter,the Laser-Doppler Velocimeter(LDV),the Particle Image Velocimeter(PIV),the impact force measurement and the jet structure measurements including the Scanning-X-Ray Densitometry,the flow separation technique were summarized.

Measurement theory and limitations of the traditional velocity measurement technic in fire smoke velocity were analyzed and presented.

Gas/liquid two-phase cross-correlation flow velocity measurement system is composed of the upper and under ultrasonic sensors which change the flow noise signal into electrical signals , through the amplification,filtering,A/D converter circuit and the digital signal will be se.