×

Process and device for monitoring apparatus for emission of electro-magnetic radiations

  • US 5,434,419 A
  • Filed: 12/16/1993
  • Issued: 07/18/1995
  • Est. Priority Date: 12/22/1992
  • Status: Expired due to Fees
First Claim
Patent Images

1. A process for monitoring the flowrate and intensity of an electro-magnetic emission, particularly of very short wave-length, in the vicinity of visible light, such as a wave emission in the ultra-violet, and of the type in which a first and a second sensor are exposed to the radiations to be monitored, the first sensor being a first photovoltaic transducer and the second sensor being a second photovoltaic transducer, while a series of filters is interposed in front of said sensors, such that a first sensor is rendered exclusively sensitive to the radiations of the wave-length to be monitored, while the second sensor is rendered insensitive to said radiations, the currents issued by each of these transducers are compared, the differential between the two currents being proportional to the intensity of the radiation monitored, which makes it possible to display this intensity,wherein, the emission of waves being employed for germicidal or bacteriostatic or atmosphere purifying means, a minimum reference threshold of said differential is determined, below which is actuated a visual or sound alarm means or a relay triggering off an automatic intervention such as the cut-off of supply to the electro-magnetic emission.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×