Study on Measurement System of Cement Cooler Clinker's Temperature Field
A system of measuring temperature field is introduced in this. It is CCD colorimetric method, which achieves non-intrusive measurement of temperature field. This article describes the principle and the structure of measuring system in detail, analyses selection principles of system parameters. Experiments are carried out, and measurement results show that this method can measure clinker temperature distribution, the system can meet the measurement requirement of cement cooler for clinker temperature field. Such doing provides credible assurance for automatic control of cement cooler
A two-color spatial-scanning pyrometer for the determination of temperature profiles in combustion synthesis reactions
This article describes a new two‐color pyrometer able to obtain multiple temperature reading using charge couple device type sensors. The device was tailored to fit the characteristics of self‐propagating high‐temperature synthesis processes in order to be able to detect temperature profiles and propagation rates of the combustion front. The light intensities at the two working wavelengths and the relative temperature profile are detected in 512 or 1024 points on the sample surface. The time between the acquisition of two profiles can be varied between 100 ms and 10 s. The pyrometer is interfaced with the BUS of a PC and is fully software programmable. The constructive details, procedure for sensors alignment, and temperature calibration are described. Few examples of applications are discussed.
Fault Diagnosis and CAN Bus/Ethernet Redundancy Design of a Monitoring and Control System
The ship monitoring system is used to monitor and control the working status of various equipment on the ship. The navigational safety of the ship is affected directly by the stable working of the monitoring system. In this paper, a ship monitoring system with fault-type judgment function and bus redundancy is designed to improve system reliability and reduce fault checking cost. A redundant Ethernet/CAN bus communication network is constructed in the system, which connects multiple simulation nodes. The simulation node can simulate the faults that may occur during the communication process and feeds back the fault information to the host computer. The host computer will analyze and display the corresponding fault type on the user interface with the feedback information is received. The system reconfigures the network route autonomously when the simulation node has a communication fault. Routing of fault nodes can be switched to redundant routing, and the load balancing of the communication network can be maintained. Through experimental tests, the system can accurately locate faults and achieve fast switching of redundant routes between buses. Hence, the reliability of data transmission is improved.