In　experiments,　the　probe　principle　of　directly　measuring　the　specific　series　of　time　intervals　and　variable　reluctance　transducing　technique　was　used.

n the basis of generalization and summarization for a large number of literatures and informations, the new progress of automation technology including sensing technique, automatic control technique and drive technique in steel rolling process is described.

Development and prospects of inertial sensor technology;

Reseach on amplitude modulation and sensor technology in temperature-humidity metering-control system;

Necessity and investigation contents of the laboratory of sensor technology in well logging field;