New progress of in situ measurement of transient species is reviewed in detail.

In this paper,we analyse the measurement method of compressional wave velocity and acoustic attenuation in unconsolidated seafloor sediment,and develope an in situ measurement system based on this analysis.

Mould level measurement and automatic control of thin slab continuous caster in Lanzhou Iron and Steel Plant;

Applicability Study on Magnetostriction Effect in High Accuracy Level Measurement;

In this paper, the acoustic liquid level measurements are investigated by means of spread spectrum theory.

This paper introduces a two-way displacement measuring system based on the CCD.

The quick and accurate disposal of the inductosyn output signal is demanded during the displacement measuring process in machining.

Nowadays numerous measuring methods are used to confirm displacement measuring.

Since measurement methods used in some special measurement conditions are urgently required,this paper presented a kind of measurement method based on PKM(Parallel Kinematic Mechanism) for the position and attitude measurement of the moving object in a plane.

This paper presented a new kind of measurement mechanism for the position and attitude measurement of a moving object in plane.

A 2-DOF (Degree of Freedom) mechanism was designed to implement the functions of system driving, the positions and velocities control, and the high-precision and large-scope position and attitude measurement.