PV016R1K1AYN100
PV016R1K1T1NMMC
PV016R1L1T1NFDS
PV016R1K1T1NELB
PV016R1K1T1NECC
PV016R1K1T1NFFD
PV016R1K1T1NFRC
PV016R1K1T1N001
PV016R1K1T1N100
PV016R1K1T1NFDS
PV016R1K1T1NFR1
PV016R1K1T1NFHS
PV016R1K1T1NMM1
PV016R1K1T1NMRC
PV016R1K1T1NFWS
PV016R1K1T1NFF1
PV020R1K1T1N001
PV020R1K1T1N100
PV020R1K1T1NFDS
PV020R1K1T1NFR1
PV020R1K1T1NFHS
PV020R1K1T1NMMC
PV020R1K1T1NMM1
PV020R1K1T1NMRC
PV020R1K1T1NFWS
PV020R1K1T1NFRC
PV020R1K1T1NFF1
PV020R1K1T1NHLC
PV020R1K1T1WMM1
PV020R1K1T1NBLC
PV020R1K1T1NFRL
PV020L1K1T1NFWS
PV020R1K4T1NFR1
PV020R1K1AYNMMC
PV020R1K8T1VMMC
PV020R1K1T1NMR1
PV020R1K1T1NFRZ
PV020R1K4T1NFHS
PV020R1K1A1NMMC
PV020R1K1T1NMMK
PV020R1K1T1NKLC
PV020R1K1T1NMF1
PV020R1K1T1WFDS
PV020R1K1T1WFR1
PV020R1K1T1WMMC
PV020R1K1T1NMRZ
PV020R1K1T1WMRC
PV020R1K1T1NF
PV020R1K1T1NFFP
PV020R1K1JHNMMC
PV020R1K8T1NFWS
PV020R1K1AYNMRZ
PV020R1K1T1VMMC
PV020R1K1T1WMR1
PV020R1K4T1NMR1
PV020R1K1T1NHCC
PV020R9K1T1NMMC
PV020R1K8T1NMMC
PV020R1K8T1N001
PV020R1K1T1NFFC
PV020R1K4T1NMMC
PV020R1L1T1NMMC
PV020L1K1T1NMMC
PV020R1K1S1NFWS
PV020R1K1T1NGLC
PV020R1K1T1NMRK
PV020R1K1T1VFDS
PV023R1K1T1N001
PV023R1K1T1N100
PV023R1K1T1NFDS
PV023R1K1T1NFR1
PV023R1K1T1NFHS
PV023R1K1T1NMMC
PV023R1K1T1NMM1
PV023R1K1T1NMRC
PV023R1K1T1NFWS
PV023R1K1T1NFRC
PV023R1D1T1NMMC
PV023R1D1T1NUPR
PV023R1D3T1NMMW
PV023R1E1T1NMFC
PV023R1E1T1NUPR
PV023R1K1AYNMMC
PV023R1K1AYNMMD
PV023R1K1AYNMMW
PV023R1K1AYNMRC
PV023R1K1AYNMR1
PV023R1K1A1NECC
PV023R1K1T1NCCC
PV023R1K1T1NCLC
PV023R1K1T1NDCC
PV023R1K1T1NDCD
PV023R1K1T1NDLC
PV023R1K1T1NDLD
PV023R1K1T1NDL1
PV023R1E1T1NGLC
PV023R1K8T1VFHS
PV023R1K1A1NFWS
PV023R1L1T1NFRC
PV023R1L1T1NCLC
PV023R1K1T1NBCC
PV023R1K1T1NF
加气设备泄露天然气运输车连接处泄露通过触摸屏快速调整声学成像仪频段，化碳气体泄漏的频段通常在2kHz以上，该现场的频段设置为3kHz-45kHz（黄色框），使用ii9声学成像仪，可以清晰地反映出泄漏点的位置。*重要的是，声学成像仪可以有效现场的噪声。即使现场有很多噪声，声学成像仪也不会受到干扰。Fluke声学成像仪可以设置频段，泄漏点的频率一般在2kHz以上，处于超声波范围；而噪声小于2kHz，可准确设置泄露的频段，现场噪声互不干扰。
PV023R1K1T1NECC
PV023R1K1T1NELC
PV023R1K1T1NEL1
PV023R1K1T1NGCC
PV023R1K1T1NGLC
PV023R1K1T1NGL1
PV023R1K1T1NMFC
PV023R1K1T1NMFW
PV023R1K1T1NMF1
PV023R1K1T1NMMD
PV023R1K1T1NMMW
PV023R1K1T1NMRD
PV023R1K1T1NMR1
PV023R1K1T1NUPD
PV023R1K1T1NUPE
PV023R1K1T1NMMK
PV023R1K1AYNMRZ
PV023R1K1T1WFR1
变频器概述变频器主要分为两类：电压型，将电压源的直流变换为交流，其直流回路通过电容滤波。输出电压波形为矩形波电流波形近似正弦波。一般要深度负反馈，有稳定作用；电流型，将电流源的直流变换为交流，其直流回路通过电感滤波。电流波形为矩形波电压波形近似正弦波。一般为正反馈，有增益作用。现在的变频器主要采用VVVF变频或矢量控制变频，也就是先把工频交流电通过整流器转换成直流电源，再把直流电源转换成频率、电压均可控制的交流电供给电机。
