STEM与日常科技·英语30篇（9）
5 / 30
正在确认阅读权限…
How Rain Sensors Help Modern Cars Stay Safer
雨量传感器如何让现代汽车更安全
-
Tiny infrared sensors on the windshield detect how fast raindrops distort light reflections.挡风玻璃上的微型红外传感器可探测雨滴对光线反射的扭曲速度。
-
The system calculates drop size, speed, and coverage area to adjust wiper frequency precisely.系统通过计算雨滴大小、下落速度和覆盖面积，精准调节雨刷频率。
-
Unlike older timed systems, this responds in real time to sudden downpours or mist.与老式定时系统不同，该系统能实时响应突发暴雨或薄雾。
-
Some cars link rain data to headlights, turning them on automatically in low visibility.部分车辆将降雨数据与大灯联动，在能见度低时自动开启大灯。
-
Calibration happens during manufacturing, but minor misalignment can cause false triggers.校准在生产过程中完成，但轻微错位可能导致误触发。
-
Cold weather doesn’t affect accuracy because sensors measure optical changes—not temperature.低温不影响精度，因为传感器测量的是光学变化而非温度。
-
Tests show reaction time improves by 0.8 seconds compared to driver-activated wipers.测试表明，相比驾驶员手动启动雨刷，反应时间缩短0.8秒。
-
This small delay reduction matters most at highway speeds where stopping distance increases sharply.这一微小延迟缩减在高速公路车速下尤为重要，此时制动距离急剧增加。