当同时摩擦拇指和食指时，就会产生超声波范围内的信号。虽然您可能会模糊地听到这种摩擦的音讯声调，而借助于ULTRAPROBE，这种声音听起来将会特别的响亮。声音响亮的原因是因为ULTRAPROBE把超声波信号转换成可听见的声音范围，并将其放大。由于超声波具有极低的振幅性质，放大它就成了非常重要的手段。虽然大多数运转设备发出的发出的声音听起来很明显，但通常声音散发的超声波成分*为重要。在预防性保养维护中,经常是用某些简易的听音器*轴承来确定轴承的磨损状况。

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
地线也是有阻抗的，电流流过地线时，会产生电压，此为噪声电压，而噪声电压则是影响系统稳定的干扰源，不可取。所以，要降低地线噪声的前提是降低地线的阻抗。众所周知，地线是电流返回源的通路。随着大规模集成电路和高频电路的广泛应用，低阻抗的地线设计在电路中显得尤为重要。这里就简单列举几种常用的接地方法。单点接地单点接地，顾名思义，就是把电路中所有回路都接到一个单一的、相同的参考电位点上。如下图所示。单点接地可以分为“串联接地”和“并联接地”两种方式。

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
泄漏同轴电缆（LeakyCoaxialCable）通常简称为泄漏电缆或漏泄电缆，其主要工作原理是电磁波在泄漏电缆中纵向传输的同时通过槽孔向外界辐射电磁波；外界的电磁场也可通过槽孔感应到泄漏电缆内部并传送到接收端。漏泄同轴电缆，是一种特殊的同轴电缆,与普通同轴电缆的区别在于：其外导体上开有用作辐射的周期性槽孔。普通同轴电缆的功能，是将射频能量从电缆的一端传输到电缆的另一端，并且希望有的横向，使信号能量不能穿透电缆以避免传输过程中的损耗。