Resources Contact Us Home
Non-dispersive mid-infrared sensor for vaporized hydrogen peroxide

Image Number 6 for United States Patent #6875399.

A sterilization system (14) includes a sensor (10) for detection of a component, such as hydrogen peroxide vapor, in a multi-component vapor, such as a mixture of vapor hydrogen peroxide and water supplied to a chamber (12) of the system. The sensor preferably uses a wavelength range in which hydrogen peroxide strongly absorbs but other components of the vapor, such as water, do not. A suitable wavelength for detection of hydrogen peroxide is from about 7500 to about 8400 nm, since there is little absorption by water in this range. This avoids the need to use complex subtraction procedures normally used to remove the contribution of water from detected absorbance measurements. A control system (16, 30) controls operating conditions of the sterilization system, such as a heater (82), pressure release valves (74), vaporization rate of hydrogen peroxide by a vaporizer (22), and the like to maintain optimum sterilization conditions within the chamber.

  Recently Added Patents
Method and mobile device for awareness of language ability
Inductive antenna coupling
Electric vehicle supply equipment having a socket and a method of charging an electric vehicle
Advanced CAPTCHA using images in sequence
Method and device for detecting the dysfunction of a gas pressure sensor in a vehicle tire
Storage device having clock adjustment circuitry with firmware-based predictive correction
Vapor phase decarbonylation process
  Randomly Featured Patents
Position control apparatus for motor
Programmable input range SAR ADC
Methods and system for balancing turbine rotor assemblies
Storage element and memory including a storage layer a magnetization fixed layer and a drive layer
Pendulum rolling resistant test
Modular coatings sprayer
Process for producing polymers or copolymers of conjugated dienes
Storage element, method of manufacturing same, and semiconductor storage device
Hair adornment
Iodine-propylene glycol teat dip