Seamless wireless type plate shape gauge of entire roller

Abstract

The invention discloses a seamless wireless type plate shape gauge of an entire roller, which is characterized in that a plate shape gauge detecting roller (2) detects an original plate shape signal which is transmitted to a signal processing circuit board (31) in a power self-generating signal processing and wireless emitting device (4) through a low noise coaxial high shielded cable(30); and after being processed by a DSP chip, a coded digital signal packet is output by a wireless emitter (36) in the power self-generating signal processing and wireless emitting device (4) in a wireless way. After the wireless receiver (5) receives the data packet, a decoder (6) restores the received data packet and delivers the data packet a software processing system (7) for carrying out digital filtration, signal compensation, and the like on the plate shape signal so as to obtain real online plate shape data. The invention avoids scratching the surface of a band steel; a differential charge amplifier is adopted so that the plate shape gauge has fine high frequency and low frequency response characteristics; all circuits are completely sealed inside a roller body, the data packet of the plate shape signal is emitted in real time through antennae and the plate shape gauge has excellent shielding property, realizes wireless emitting and receiving of the signal, avoids slip ring type wired transmission, effectively eliminates the influence of interference factors on plate shape detecting signals and accurately detects the signal in real time so that the plate shape gauge can stably run for a long time under the a serious working condition.

Description

technical field [0001] The invention belongs to the field of automatic measurement of steel rolling machinery and equipment, and is used for an online detection device for the shape (flatness) of cold-rolled steel strips, aluminum strips, copper strips and other strip products. Background technique [0002] The shape meter is the key core equipment in the cold-rolled strip shape detection and control technology, and is the premise to realize the closed-loop control of the strip shape. Among them, the rational design of the shape detection roller structure is the key and difficult point in the development of the shape meter, which directly affects the accuracy and stability of the shape detection signal; the selection of the original signal detection and transmission mode of the shape meter is the The hot spots and focus of research affect the stability and quick response of the shape signal. Therefore, the key to the development of the shape meter is to design an advanced s...

AI Technical Summary

Problems solved by technology

[0007] However, no matter which transmission method is used, a stable excitation voltage must be provided by the power supply line. Even for wireless transmitters, the power supply circuit is inevitable.

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