Northeastern University

Shenyang Taihe Metallurgy Measurement & Control Technology Co., Ltd.

Shenyang Taihe Metallurgical Measurement and Control Technologies Co., Ltd.

Shenyang Taihe Instrumentation Co., Ltd.

Zhi Xie

Zhenwei Hu

Ying Ci

Da Zhang

Qixian Xie

Hongji Meng

Xunjian Che

Lizhong Wang

Rujun Chen

measurement device and a measurement method for measuring a temperature and an emissivity of a measured surface are provided. The measurement device includes a reflection converter, an optical receiver and a data processor. The reflection converter includes a reflector having a through hole and an absorber tube shifted between a first measurement position and a second measurement position relative to the reflector. In the first measurement position, the light incident end of the absorber tube approaches or contacts the measured surface, such that the optical receiver forms a first electrical signal. In the second measurement position, the light incident end of the absorber tube is located at or outside the through hole, such that the optical receiver forms a second electrical signal. The data processor is configured to determine a temperature and an emissivity of the measured surface according to the first electrical signal and the second electrical signal.

Measurement device and measurement method for measuring temperature and emissivity of a measured surface

An apparatus for measuring the liquid level of molten metal including an image measuring device (), a measuring probe (), a lifting mechanism (), a displacement sensor (), an data processing system () and a correction marker(). The lifting mechanism () is fixed to the molten metal container () or is independent of the molten metal container, the image measuring device () and the measuring probe () are installed on the lifting mechanism () or are independent of the lifting mechanism, and the optical axis of the image measuring device () is set at an angle with the geometric axis of the measuring probe (), the measuring probe () is located within the field of view of the image measuring device (), the image measuring device (), the lifting mechanism () and the displacement sensor () are connected to the data processing system () respectively. A method for measuring the level of molten metal is also disclosed. The present invention is able to eliminate the influence by the slag layer floating on the molten metal and to achieve stably and continuously accurate measurement of molten metal level by using the measuring probe () inserting into molten metal through the slag-metal interface and having the slag thickness information after lifted.

Apparatus and method for measuring the liquid level of molten metal

The present invention discloses a method and apparatus for measuring the temperature field on the surface of casting billet/slab, including: a thermal imager, an infrared radiation thermometer, a mechanical scanning unit, an image and data processing system; the thermal imager, the infrared radiation thermometer and the mechanical scanning unit are respectively connected to the image and data processing system; the infrared radiation thermometer is installed on the mechanical scanning unit and can measure the temperature of casting billet/slab surface by scanning; the thermal imager can measure the temperature of a certain area on the surface of casting billet/slab by thermal imaging. The present invention makes use of the combination of high-resolution thermal imager and scan-type infrared radiation thermometer, through the model-based filtering method, overcomes the influence of iron scales on the surface of casting billet/slab, and implements real-time stable measurement of surface temperature of casting billet/slab.

Apparatus and method for measuring the surface temperature of continuous casting billet/slab

The invention discloses a method for measuring the temperature of a molten steel continuously, comprises the following steps: providing a tube that is made of double bushings, both of the inner and outer bushings being close at one end and open at another end; putting the close end of the tube into the molten steel in such a way that the ratio of the length of the tube under the surface of the molten steel to the inner diameter of the inner bushing is equal or greater than 15 and the ratio of said length to the outer diameter of the outer bushing is greater than 3; connecting the open end of the tube with an infrared detector; and calculating the temperature of the molten steel through evaluating the radiation emitted by the inner bushing at the end that was put under the molten steel by means of the detector. A tube to implement the method is also disclosed.

Method for continuously measuring melting steel temperature and measuring temperature pipe

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Shenyang, China

Zhi Xie