PCR instrument, also known as DNA thermal cycler and gene amplification instrument, is the basic laboratory instrument. PCR machine,PCR dna thermocycler,Electric Mixer,Lab PCR Thermal Cycler,Thermal cycler,Gene cycler,PCR instrument Changzhou Yuanwang Fluid Technology Co., Ltd. , https://www.ywfluid.com
The PCR instrument is mainly used in many fields such as basic research and applied research, such as genetic analysis, sequence analysis, evolutionary analysis, clinical diagnosis, forensic medicine, and so on. With the continuous development of molecular biology, PCR amplification technology has also been popularized and applied.
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Method for eliminating tooth gap of gear transmission of numerical control machine tool
The CNC machine feed system, especially the continuous control system, requires automatic control of both the position and speed of the feed motion, and requires high positioning accuracy and transmission response characteristics. Since the CNC machine feed system is often in an automatic reverse direction, if there is a gap in the gear drive pair in the drive chain, the feed motion will lag behind the command system in the reverse direction, which affects the system accuracy of the drive chain and affects the machining accuracy. Therefore, measures must be taken to eliminate the gap in the gear drive pair to improve the CNC machine.