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Keysight N9320B射频频谱分析仪解决轮胎压力监测方案
2022-07-04 03:52:00 【Agitek99】
Keysight N9320B射频频谱分析仪解决轮胎压力监测方案,轮胎压力监测系统(Tire Pressure Monitoring System,TPMS),是一种采用无线传输技术,利用固定于汽车轮胎内的高灵敏度微型无线传感装置在行车或静止的状态下采集汽车轮胎压力、温度等数据,并将数据传送到驾驶室内的主机中,以数字化的形式实时显示汽车轮胎压力和温度等相关数据,并在轮胎出现异常时(预防爆胎)以蜂鸣或语音等形式提醒驾驶者进行预警的汽车主动安全系统。从而确保轮胎的压力和温度维持在标准范围内,起到减少爆胎、毁胎的概率,降低油耗和车辆部件的损坏。
1.胎压传感器
发射机测试站表征在多个频率点上的发射机功率测量、通道功率测量和占用带宽测量性能。并且,根据用户特定测试要求执行其他测试。在多数情况下,使用频谱分析仪进行选频功率测量。考虑到上述要求,Keysight N9320B射频频谱分析仪是消费类电子产品制造的理想工具。如下:图1
图1.测量ASK/FSK发射机的典型系统设置
2.车载控制器
接收机测试站通过比较解调基带信号与参考基带信号来表征接收机灵敏度。图2
图2.测量ASK/FSK接收机的典型系统设置
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