Optical sensing apparatus for CO2 jet spray devices
    3.
    发明公开
    Optical sensing apparatus for CO2 jet spray devices 失效
    OptischerFühlerfürCO2-Sprühstrahlsysteme

    公开(公告)号:EP0732150A1

    公开(公告)日:1996-09-18

    申请号:EP96100292.0

    申请日:1996-01-10

    摘要: Optical sensing apparatus (10) for use with a CO 2 jet spray nozzle (16) that sprays a plume (15). The apparatus (10) comprises a coherent light source (11) that provides a light beam (11a). A photodiode (12) is disposed such that it detects the light beam (11a) emitted by the coherent light source (11) that passes through the plume (15) sprayed by the CO 2 jet spray nozzle (16). A bandpass filter (13) is disposed between the photodiode (12) and the coherent light source (11) that only passes light produced by the coherent light source (11). A controller (17) coupled to the coherent light source (11) and the photodiode (12) that comprises a power supply (26) for providing power to the coherent light source (11) and the photodiode (12). The controller (17) includes a digital voltmeter (22) coupled to the photodiode (12) for displaying a voltage output signal corresponding to the amount of light energy detected by the photodiode (12), and a go/no-go indicator (21) for providing an indication of CO 2 snow production.

    摘要翻译: 用于喷射羽流(15)的二氧化碳喷射喷嘴(16)的光学传感装置(10)。 设备(10)包括提供光束(11a)的相干光源(11)。 光电二极管(12)被设置成使得其检测通过由CO 2喷射喷嘴(16)喷射的羽流(15)的相干光源(11)发射的光束(11a)。 带通滤波器(13)设置在仅通过由相干光源(11)产生的光的光电二极管(12)和相干光源(11)之间。 耦合到相干光源(11)和光电二极管(12)的控制器(17),其包括用于向相干光源(11)和光电二极管(12)提供功率的电源(26)。 控制器(17)包括耦合到光电二极管(12)的数字电压表(22),用于显示对应于由光电二极管(12)检测的光能量的电压输出信号,以及去/禁止指示器 ),用于提供二氧化碳积雪的指示。