Software Design of Intelligent Quartz Crystal Vacuum Gauge Qi Bensheng, Wang Huaping, Ling Mingfang (Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China). The V/F-converted output signal fp and quartz-crystal resonant frequency fc collected by a single-chip microcomputer are collected and filtered by software, and a combination of timed interruption and external pulse count interruption is used to improve the accuracy of the acquisition. Through a large number of monotonicity due to the /cT relationship, the ZT relationship can be transformed into a Z/c relationship to consider setting AZ' as an additional shift due to the shift of the temperature of the crystal impedance due to the temperature at different temperatures, thus having hingfe. Qi Bensheng, et al.: Intelligence. Quartz crystal vacuum gauge software design a total of 6 bytes. Among them, ID is a multi-frame identification word, the program is set to A5H; GAS is a gas type, including air oxygen, chlorine, argon, etc.; TEMPR is temperature data, by /,. Converted; DHDL is the high and low 8-bit data of fp respectively; SUM is the check sum, which is obtained by accumulating the first 5 bytes. It is used to determine whether the data has errors in the transmission process. 4 Experimental results In order to determine the accuracy of the quartz crystal vacuum gauge, a 2D quartz vacuum gauge and a condenser vacuum gauge manufactured by MKS, USA were connected to the same vacuum test system for comparative test. The condenser vacuum gauge manufactured by MKS is used as a standard gauge and its measurement error is in the entire measuring range. Predictive control. Beijing: National Defense Industry Press, 1993. Warp Knitting Machine Accessories
Warp Knitting Machine accessories are parts that are used to enhance the functionality of warp knitting machine. These accessories are designed to enhance the performance of the machine and improve the quality of the knitted fabric.
1. Camera Detection: This accessory is used to detect any defects in the knitted fabric. It is a high-tech system that uses cameras to scan the fabric and identify any flaws or defects. The system can detect holes, dropped stitches, and other defects, which helps the operator to take corrective action immediately.
2. Laser Stop: This accessory is used to stop the machine automatically when a defect is detected. The laser stop system is linked to the camera detection system, and it can stop the machine at the exact point where the defect occurred. This helps to minimize waste and reduce downtime.
3. Knotting Machine: This accessory is used to tie the yarn ends together when changing colors or when a yarn break occurs. The knotting machine is an automated system that ties the yarn ends together quickly and efficiently, without interrupting the knitting process.
5. Waste Yarn Spooler: This accessory is used to collect the waste yarn that is generated during the knitting process. The waste yarn spooler collects the yarn and winds it onto a spool, which can be easily removed and disposed of.
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4. Conversion: This accessory is used to convert the warp knitting machine from one gauge to another. The conversion system includes different types of needles, sinkers, and guide bars, which can be easily changed to adjust the gauge of the machine.
Overall, these accessories are essential components of a warp knitting machine, and they help to improve the efficiency and productivity of the machine. They also help to ensure that the quality of the knitted fabric is consistent and of high quality. We are the professional warp knitting machine manufacturer located in China, welcome to consult us.
Software Design of Intelligent Quartz Crystal Vacuum Gauge
Core Tips: Software Design of Smart Quartz Crystal Vacuum Gauge Qi Bensheng, Wang Huaping, Ling Mingfang (Department of Information and Electronic Engineering, Zhejiang University, Hangzhou 310027, Zhejiang, China). The resonant frequency fc of the V/F-converted output signal fp and the quartz crystal oscillator collected by the single-chip microcomputer is collected and filtered by the software.