供应红外传感器 HOA0902-012
| 价 格： | 面议 | |
| 型号/规格： | HOA0902-012 | |
| 品牌/商标： | HONEYWELL（霍尼韦尔） |
HOA0902组件包括一个双通道集成电路探测器和红外发光二极管包裹在一个黑色的热塑性外壳。该设备通常用于灭弧室带或磁盘（代码轮）机械运动的速度和方向进行编码。 应用程序包括线性和旋转编码器，它特别适合在一个光学鼠标的编码功能。 该探测器是一个单片集成电路，其中包括两个窄相邻光电二极管，放大器阶段和正交逻辑电路，它提供了两个输出（1）一个固定的时间，低电平有效转速（计数）脉冲产生时的照明水平通过首先亮起的检测阈值，（2）方向输出被设定为逻辑高或低的水平取决于两个通道。转速输出是NPN集电极内部通过一个10欧姆（标称值）的电阻连接到Vcc输出的方向，是一个图腾柱结构。.两个输出都能够直接驱动TTL负载。 IC设计集成的电路，以补偿为特征的红外发光二极管的输出功率随温度的灵敏度。
同时增加和减少，导致每个灭弧机械时期在两个转速脉冲感应通道的照明阈值产生的转速脉冲。SEP8506 and HCL2705.对于其他组件的信息，请参阅SEP8506和HCL2705。
双通道IC
The HOA0902 assembly consists of a dual channel IC detector and an IRED encased in a black thermoplastic housing. The device is typically used with an interrupter strip or disk (code wheel) to encode the rate and direction of mechanical motion. Applications include linear and rotary encoders; it is especially suited for the encoding function in an optical mouse.
The detector is a monolithic IC which consists of two narrow adjacent photodiodes, amplifiers stages and quadrature logic circuitry which provides two outputs; (1) a fixed-duration, low level active tachometer (counting) pulse which is generated whenever the illumination level passes through the sensing threshold, and (2) a direction output which is set to a logic high or low level dependent on which of the two channels is illuminated first. The tachometer output is an NPN collector which is internally connected to Vcc through a 10 kOhm (nominal) resistor; the direction output is a totem-pole configuration. Both outputs are capable of directly driving TTL loads. The IC design incorporates circuitry to compensate the sensitivity for the output power vs. temperature characteristic of the IRED.
The tachometer pulse is generated at both the increasing and decreasing illumination thresholds of the sensing channel, resulting in two tach pulses for each mechanical period of the interrupter. For additional component information see SEP8506 and HCL2705.
Housing material is polycarbonate. Housings are soluble in chlorinated hydrocarbons and ketones. Recommended cleaning agents are methanol and isopropanol.
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