交流输电线路可听噪声一般由两部分组成：一部分是宽频带噪声，这是交流可听噪声的主要部分；另一部分是由于交流电压周期性变化，使导线附近带电粒子往返运动，产生交流纯音分量。实测结果表明，晴天时交流输电线路可听噪声较小，而雨天或雾天时，由于导线表面受潮或附着水滴，电晕放电较强，可听噪声较大，是交流输电线路设计时需要考虑的主要因素。直流输电线路可听噪声，无交流纯音分量，只有宽频带噪声。由于负极性导线电晕放电的效应远低于正极性导线，直流输电线路可听噪声主要来源于正极性导线电晕放电。
PV032R1K1T1NGLC
PV032R1K4T1NFHS
PV032R1K8S1NFWS
PV032R1K8T1NMMC
PV032R1K1T1WFDS
PV032R1K1AYNMTP
PV032R1K1T1NHCC
PV032R1K1T1WMM1
PV032R1K1AYNMRZ
PV032R1K8T1NFWS
PV032R1K1A4NFTZ
PV032R1K1T1VMMC
PV032R1K1T1NFPV
PV032R1K1A1VFDS
PV032L1E3C1NFWS
PV032R1K1T1NELB
PV032L1K1T1NFWS
PV032R1K1B1NFDS
PV032RAK1T1NF
PV032R1L1B1NFWS
PV032R1K1T1NFPG
PV032R1K1S1NFWS
PV032L1K1T1NMMC
PV032R1K1T1NMRZ
PV032R1K1T1VFDS
PV032R1K1T1N10045
PV032R1K1AYNMT1
PV032R1K8T1N001
PV032R1K1T1NHLC
PV032R1K4T1NFR1
PV032R9K1T1NMMC
PV032R1K1A4VFRZ
PV032R1K1T1NFRZ
PV032R1K1T1NMMK
PV032R1L1T1NMMC
PV032R1K4T1NMR1
PV032R1K1T1WMR1
PV032R9K1T1NMMCK
PV032R1K1T1NE1B
PV032R1K1T1NKLC
PV040R1K8T1NMMC
PV040L1K1T1NFWS
PV040R1K1T1NFRC
PV040R1K1T1NFFP
PV040R1K4T1NMR1
PV040R1K1T1NMR1
PV040R1K1T1NFR1
PV040R1K4T1NMMC
PV040R1K1T1NFDS
PV040R1K1T1NFF1
PV040R1K1T1NMRZ
PV040R1K1AYNMRZ
PV040R1K4T1NFHS
PV040R1K1T1WFDS
PV040R1K8T1VMMC
PV040R1K8T1N001
PV040R9K1T1NMMC
PV040R1K4T1NFR1
PV040R1K1T1N001
PV040R1K8T1NFWS
PV040R1K1T1VFDS
PV040R1K1A4NFRZ
PV040R1K1T1NMRC
PV040R1K1T1NMM1
PV040R1K1T1WMM1
PV040R1K1T1NMRK
PV040R1K1T1NHCC
PV040R1K1T1NMF1
PV040R1K1JHNMMC
PV040L1K1T1NMMC
PV040R1K1S1NFWS
PV040R1L1T1NMMC
PV040R1D8T1N001
PV040R1K1T1NMFC
因此可以使用较为经济的陶瓷振荡器。图2所示为适用于汽车电子中振荡器误差的位定时规格。图2位定时段的规格（适用于振荡器误差）通常位定时的规格首先通过所需要的位速率来确定。位时间必须为系统时钟周期的整数倍。位时间tbit＝n×tq（n＝4..25，tq为时间量）。确定时参数的一种方法是首先确定传输段的长度，因此必须考虑到的总线长度和内部延迟时间。将往返的延迟时间转换成对应时间量的数目并取四舍五入为tq的整数倍。
PV040R1K1T1NFWS
PV040R1K1T1WFR1
PV040R1K1T1NKLC
PV040R9K1T1NFWS
PV040R1K1T1NFFC
PV040R1K1T1NF
PV040R1K1T1N100
PV040R1K1T1WMR1
PV040R1K1T1NFRZ
PV040R1K1T1WMRC
PV040R1K1T1NMMK
PV040R1K1T1NMMC
PV040R1K1T1VMMC
PV040R1K1T1NFHS
PV040R1K1T1NGLC
PV040R1K1T1NHLC
PV040R1K1T1WMMC
PV040L1L1T1NFWS
PV040R1K1T1NMLC
PV040R1D1T1NGCC
PV040R1K1T1NELA
PV040R9K1T1NMMCK0188
PV046R1K1T1N001
PV046R1K1T1N100
PV046R1K1T1NFDS
PV046R1K1T1NFR1
PV046R1K1T1NFHS
PV046R1K1T1NMMC
PV046R1K1T1NMM1
PV046R1K1T1NMRC
PV046R1K1T1NFWS
PV046R1K1T1NFRC
PV046R1K1T1NFF1
PV046R1D1T1NFWS
PV046R1D3T1NFFC
PV046R1K1A1NF
PV046L1K1A1NFHS
PV046R1K1B1NFDS
PV046R1D1T1NHCC
PV046R1K1T1NFFC
PV046R1K1T1NMFC
PV046R1K1T1NMF1
PV046R9K1T1NMMC
PV046R1K1AYNMRC
PV046R1K1JHNMMC
PV046R9K1T1NFWS
PV046R1K4T1NMR1
PV046R1K4T1NFHS
PV046L1K1T1NFWS
PV046R1K1S1NFWS
PV046R1K1T1WFDS
PV046R1K1T1NMRZ
PV046R1K1T1EMMC
PV046R1K1T1WMMC
PV046R1K1T1NFFP
PV046R1K1A4NFRC
PV046R1K1T1VFDS
PV046R1K8T1NFWS
PV046R1K1T1WMM1
PV046L1K1T1NMMC
PV046R1K8T1VMMC
PV046R1K8T1NMMC
PV046R1K1T1NF
PV046R1K1AYNMRZ
PV046R1K1T1NHLC
PV046R1K1T1NMMK
PV046R1K1T1NKLC
PV046R1K1T1NMR1
PV046R1K1T1NFRZ
PV046R1K1T1WFR1
PV046R1K4T1NFR1
PV046R1K1T1WMR1
PV046R1K1T1NMRK
PV046R1K1T1WMRC
PV046R1K1T1NHCC
PV046R1K1T1VMMC
PV046R1K1T1NGLC
PV046R1L1T1NMMC
PV046R1K8T1N001
PV046R1K4T1NMMC
PV046R1K1T1NMMCX5934
PV063R1K1T1NMF1
PV063R1K1T1NMMC
PV063R1K1T1NMMK
PV063R9L1TNMPCK0
PV063R1K1A1VFPR
PV063R1K1C1NFWS
PV063R2K1T1N001
PV063R9L1T1NFWS
PV063R1K1A1NFHS
PV063R1K1T1NFFP
PV063R1K1T1NFPR
PV063R1K1T1NGLC
PV063R1K1T1N001
PV063R1K1T1N100
PV063R1K1T1NFDS
FLIR红外相机可以在现场抓取高质量的红外热图，并且存贮在后台的计算机中，对于每一模的温度都做保存，并且通过后台的软件作出统计分析，对于生产的工艺作出的控制，大大提高压铸厂家的工艺稳定性和数据追溯能力。上图是一个现场的红外热像监控系统，通过安装在机械臂上的红外相机（安装在保护壳中），红外相机根据压铸系统中的PLC发出的命令抓图，并且传输到后台计算机中，做进一步的温度分布分析。借助FLIR在线红外相机强大的功能以及稳定性，这套系统已经在大量客户现场稳定工作了。
