Thread Content
The intelligent diameter meter is used for the online measurement of the outer diameter of various hot-rolled steel products. Equipped with numerous protective measures, it can be applied to the inspection of round bars as well as square bars, making it a multi-functional testing instrument. In measurement mode, the main interface of the round steel measurement system can display in real time the diameter of the round steel, its average diameter, the degree of ellipticity, as well as the measurement values from the four sensors ； Real-time display of dynamic graphics of the round steel cross-section ； It displays the dynamic fluctuation curve of the measurement data in real time. The main interface of the square steel measurement system displays in real time the horizontal and vertical dimensions of the square steel, as well as the measurement values of its two diagonals ； Real-time display of horizontal roughness, vertical roughness, and diagonal deviation ； Real-time display of dynamic graphics of the square steel cross-section ； It displays the dynamic fluctuation curve of the measurement data in real time. Inside the diameter measuring instrument, in addition to the signal acquisition circuit in the receiving lens, there is also a circuit system composed of various electronic components and communication devices. It mainly includes: 1) Inside each receiving lens of the probe unit, there is a signal acquisition circuit board; this board is equipped with a CCD chip as well as signal acquisition circuits. The raw data collected by the circuit board is transmitted over the network to an industrial computer for processing and calculation. 2) A temperature sensor is installed on the main body of the diameter measuring instrument; this sensor monitors the temperature of the main body in real time and sends the data to the embedded intelligent module as well as the measurement software system on the host computer. When the temperature of the main housing exceeds the set temperature (usually set at 50°C), the system will issue an alarm indicating that the diameter measuring instrument is overheated. 3) A wind pressure sensor is installed in the air duct of the diameter measuring instrument; the wind pressure signal is sent in real time to the embedded intelligent module as well as the upper-level computer-based measurement software system. When the high-pressure fan installed for cooling and dust protection of the diameter tester is not turned on or malfunctions, the system will issue an alarm indicating that there is no air inside the diameter tester. 4) A flow indicator is installed on the water inlet pipeline of the diameter measuring instrument; the flow signal is sent in real time to the embedded intelligent module as well as the upper-level computer-based measurement software system. When there is no water flow in the pipeline, the system will issue an alarm to indicate a fault in the water circuit. 5) The electrical box inside the diameter measuring instrument is also equipped with a 5V and 12V switching power supply designed to ensure the proper operation of the probe components, a light source drive board that provides 3V power to the light source and controls it, a 5V voltage divider board that supplies power to the CCD acquisition circuit, as well as a circuit board for synchronizing the acquisition of probe signals. 6) The internal communication system of the diameter measuring instrument mainly consists of a serial port server, fiber optic transceivers, and pigtails. The measurement data collected by the CCD chip, along with the temperature and wind pressure data, are sent via data cables to a serial port server where they are combined into a single data stream. This stream is then converted into an optical signal using an optical transceiver, and the resulting optical signal is transmitted to the data output terminal on the housing through an optical fiber. 7) The measuring vehicle of the diameter gauge is equipped with a three-level audio-visual alarm system. This alarm is driven by an embedded intelligent module; when the temperature inside the diameter gauge becomes too high, there is no air pressure in the air supply system, or no water flow in the cooling water system, the audio-visual alarm will emit light signals of corresponding colors along with audible alerts. As a high-performance online inspection system, the intelligent diameter tester is capable of measuring the dimensions of circular and square steel products. It can perform high-precision inspections on rolled materials with a wide range of specifications, making it particularly suitable for steel mills that produce various types of rolled products.