LED仍然是工业测量和过程控制系统中最符合人体工程学的显示类型
本文阐述了在工业测量和过程通过引用具体的产品可以通过厂家的Digi-Key控制系统LED的使用。这包括一些基本类型的LED元件(单LED指示灯,多分段杆和字母数字显示器),可能用于原始设备设计(从绿森、光宝、和Avago)和一个准备去显示解决方案从矩阵轨道。
LED显示屏介绍与背景透视
很少有人反对LED是无处不在设备的前提,但自从第一次可见光LED问世以来,他们在过去的50年里走过了漫长的道路。多年来,LED仅用于指示灯。他们主要是红色的,虽然绿色和黄色的版本后来流行,允许停止,去,并警告意味着归因于他们的使用。虽然led可以与电源供电设备中的霓虹灯指示器相竞争,但几乎可以肯定的是,它们能够在较低的电压下工作,有助于广泛应用于各种电子系统,从专业设备到消费产品。相对而言,LED也是低功率器件,因此它们也受到电池供电设计的青睐。
Single LEDs were essentially status or threshold indicators, i.e. on/off or “low battery”, but their ease of use quickly saw applications where multiple LEDs were arranged to provide displays mimicking analog meters or thermometer-style gauges, such as volume or recording level indicators in consumer audio equipment. In some instances, there was a novelty aspect to such designs as the coarse granularity of their measurement hardly compares with the meters or gauges they replace. Where they often win out is in providing a bold, bright, easy to read display when absolute accuracy or greater resolution is not required. Equally, the intrinsically rugged nature of solid-state LED technology suited portable applications, where delicate analog meters could be easily damaged and therefore prove unreliable.
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