Sensors
传感器向控制器提供关于工况变化的信息。 某些信息类型如下： 转速, 温度 和 液位。 传感器信号成比例变化。 信号变化代表工况的改变。 控制器识别下列类型的传感器信号：
频率 - 传感器产生交流电信号（正弦波或方波），其频率随工况改变而变化。
脉冲宽度调制 - 传感器产生数字信号 (PWM)，其工作循环随工况改变而变化。 信号的频率将保持恒定。
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| 图 1 | g00507191 |
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发动机转速传感器 | |
发动机转速传感器位于飞轮壳体上。 飞轮轮齿经过传感器末端时，将产生交流电压。 电压频率与轮齿经过传感器末端时的轮齿转速成比例。 控制器使用此信号作出与液压泵和发动机相关的决定。
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| 图 2 | g01157972 |
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泵压力传感器 1 泵压力传感器 2 "ATCH 动臂油缸杆压力传感器" "挤压压力传感器" "动臂油缸缸盖压力传感器" 动臂下降先导压力传感器 | |
这些传感器向控制器发送信号。 控制器将使用这些信号修改以下各项：
- 调整功率
- 改变行驶速度
- 调整动臂的移动
- 确定轻负载和 1 级 "AEC"
"泵压力传感器 1" 和"泵压力传感器 2"位于机器主体右后方的舱室内。 "挤压压力传感器"位于机器中心，沿着机器动臂的底座的左手侧。 "ATCH 动臂油缸杆压力传感器"和"动臂油缸缸盖压力传感器"位于机器中心的右侧。 "动臂下降先导压力传感器"位于机器中心的后部。
Caterpillar Information System:
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