摘要:
Apparatus (10) and method adapted for use in removing trace contaminants from the surface of a chosen substrate, such as delicate surfaces or precision parts, by application of a stream or jet spray of expanded fluid to the substrate surface, and controll of the electrostatic charges generated on or near the substrate surface during the cleaning process.
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:
Apparatus (10) and method adapted for use in removing trace contaminants from the surface of a chosen substrate, such as delicate surfaces or precision parts, by application of a stream or jet spray of expanded fluid to the substrate surface, and controll of the electrostatic charges generated on or near the substrate surface during the cleaning process.