市场的竞争促使汽车厂家都在加紧新车型的开发，以抢占市场先机，赢得丰厚利润。由于发动机、底盘设计制造技术基本成熟，新车型主要体现在车身造型及电子设备上。在轿车新品种的研发过程中，车身钣金件具有形状复杂、结构尺寸大、精度高、表面质量要求严格等特点。据统计目前在一种新车型开发中有4%的设计师与工程师在从事与车身钣金件相关的工作。钣金件质量的好坏决定了新车型开发的成败。这无疑对钣金件的检测提出了全新的要求。
PV023R1K1T1NHCC
PV023R1K1T1VMMC
PV023R1K1T1WMRC
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PV023R1K8T1NMMC
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PV023R1L1T1NF
PV023R1K1T1WMM1
PV023R1K1T1NHLC
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PV028R1K1T1N001
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PV028R1K1JHNMMC
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PV028R1L1T1NMMC
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PV032R1K1T1NFFP
PV032R1K1T1WMMC
PV032R1K4T1NMMC
PV032R1K8T1VMMC
PV032R1K1T1WFR1
PV032R1K1T1NFFC
PV032R1K1JHNMMC
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PV032R9K1T1NFWS
PCB设计基频电路时，需要大量的信号处理工程知识。发射器的射频电路能将已处理过的基频信号转换、升频至的频道中，并将此信号注入至传输媒体中。相反的，接收器的射频电路能自传输媒体中取得信号，并转换、降频成基频。发射器有两个主要的PCB设计目标：是它们必须尽可能在消耗*少功率的情况下，发射特定的功率。第二是它们不能干扰相邻频道内的收发机之正常运作。就接收器而言，有三个主要的PCB设计目标：首先，它们必须准确地还原小信号；第二，它们必须能去除期望频道以外的干扰信号；*一点与发射器一样，它们消耗的功率必须很小。
