A PIR motion sensor detects infrared (IR) radiation to detect the presence of an object in its close proximity. Most objects with temperature exceeding absolute zero generally radiate heat energy at the wavelengths of infrared lights. A PIR-based sensor device does not generate any heat while detecting IR radiation. The sensors are capable of identifying the difference in IR radiations when an object is overlapping the primary subject of IR radiation detection. For instance, if a PIR motion sensor is being used to detect IR from a wall being the primary subject, and a human being crosses the wall, the sensor instantly identifies the difference in IR radiation. Benefits of using PIR motion sensors are that these sensors use less power and are rarely activated by airflow.
掌握核心技术,产品创新不断。公司是目前国内唯一掌握核心技术的全自动复合材料液压机制造商,其自主研发的 HE 型液压机可以压制在轻量化领域应用广阔的长纤维热塑型复合材料,目前,该技术在国内甚至全球都较为稀缺。公司始终坚持自主创新,从最初的 HP 型压机到后续的 HF、HC、HE 型压机,公司都是通过压机技术和压制工艺的创新推出新产品,目前放量的复合材料轻量化制品也是公司自主生产的设备压制。