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5451787 Hazardous air pollutants monitor
New Patents waste material. The sensor wand is connected to a gas analyzer and a temperature monitor. The reactor vessel has affixed to its inside surface a longitudinal manifold, with pairs of aeration pipes extending to other side thereof and evenly spaced therealong. A variable speed blower has an outlet operatively connected to the manifold. A process control computer has inputs from the gas analyzer and the temperature monitor and outputs to control the prime mover and the variable speed blower. A central computer monitor has an output to the process control computer to down-load thereto the rules for the batch being processed, and a pair of inputs from the process control computer to receive temperature and gas information therefrom.
5451781 MINI ION TRAP MASS SPECTROMETER Dietrich Daniel; Keville Robert Livermore, CA, UNITED STATES Assigned to Regents of the University of California An ion trap which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:109 and commercial mass spectrometers requiring 104 ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products. 5451787 HAZARDOUS
AIR POLLUTANTS
MONITOR Taylor Lyle H Murraysville, PA, US Assigned to Westinghouse Electric Corporation
XlII
Gases such as pollutants are d~scerneta m a sample, preferably using a laser to emit an infrared light beam along a sight path for illuminating the gases. The beam is directed along the sight path and collects light from the gases. An optical tunable filter selects a particular optical wavelength or band, and the filtered wavelength is focused on a detector coupled to an analyzer. The analyzer can include a processor that can pulse the laser or coordinate collection of data from sample gases and from a reference cell containing known gases, e.g., using an optical chopper wheel. The processor analyzes the light levels .as a function of wavelength to discriminate for the presence of selected gases by determining a characteristic pattern of light absorption and light emission by the gases. The tunable filter has an acousto-optical crystal of TI3AsSe3, in which an RF acoustic wave is generated for varying diffraction of light by the filter, thereby selecting a wavelength. A nonlinear output crystal can in inserted controilably to selectively generate harmonics for increasing wavelength coverage, and can also be TI3AsSe3. A broad band infrared illumination source can be used. When the infrared excitation beam is off, the filter acts on infrared emissions of the gases. Sensitivity to narrow emission lines is increased by modulating the RF drive to the tunable filter, producing derivatives of the spectra.
5452587 AIR-CONDITIONING
DEVICE
Honda Yuji; Terada Tomotsug; Samukawa Katsuhik Okazaki, JAPAN Assigned to Nippondenso Co Ltd Temperatures in a first air-conditioning zone and in a second air-conditioning zone are controlled highly independently of each other irrespective of a difference between the setpoint temperatures in these air-conditioning zones or the state of the external air temperature. An ECU calculates target blow-out temperatures in an air-conditioning system on the driver's seat side and in an air-conditioning system on the driver's seat side based upon temperatures Tset(Dr) and Tset(Pa) set by temperature setters, a difference between the setpoint temperatures Tset(Dr) and Tset(Pa), an internal air temperature Tr, an external air temperature Tam, and the amount of solar radiation Ts, and controls, based on the calculated result, the opening degrees of the air-mixing dampers (temperatures of the blown-out
5451781 MINI ION TRAP MASS SPECTROMETER Dietrich Daniel; Keville Robert Livermore, CA, UNITED STATES Assigned to Regents of the University of California An ion trap which operates in the regime between research ion traps which can detect ions with a mass resolution of better than 1:109 and commercial mass spectrometers requiring 104 ions with resolutions of a few hundred. The power consumption is kept to a minimum by the use of permanent magnets and a novel electron gun design. By Fourier analyzing the ion cyclotron resonance signals induced in the trap electrodes, a complete mass spectra in a single combined structure can be detected. An attribute of the ion trap mass spectrometer is that overall system size is drastically reduced due to combining a unique electron source and mass analyzer/detector in a single device. This enables portable low power mass spectrometers for the detection of environmental pollutants or illicit substances, as well as sensors for on board diagnostics to monitor engine performance or for active feedback in any process involving exhausting waste products. 5451787 HAZARDOUS
AIR POLLUTANTS
MONITOR Taylor Lyle H Murraysville, PA, US Assigned to Westinghouse Electric Corporation
XlII
Gases such as pollutants are d~scerneta m a sample, preferably using a laser to emit an infrared light beam along a sight path for illuminating the gases. The beam is directed along the sight path and collects light from the gases. An optical tunable filter selects a particular optical wavelength or band, and the filtered wavelength is focused on a detector coupled to an analyzer. The analyzer can include a processor that can pulse the laser or coordinate collection of data from sample gases and from a reference cell containing known gases, e.g., using an optical chopper wheel. The processor analyzes the light levels .as a function of wavelength to discriminate for the presence of selected gases by determining a characteristic pattern of light absorption and light emission by the gases. The tunable filter has an acousto-optical crystal of TI3AsSe3, in which an RF acoustic wave is generated for varying diffraction of light by the filter, thereby selecting a wavelength. A nonlinear output crystal can in inserted controilably to selectively generate harmonics for increasing wavelength coverage, and can also be TI3AsSe3. A broad band infrared illumination source can be used. When the infrared excitation beam is off, the filter acts on infrared emissions of the gases. Sensitivity to narrow emission lines is increased by modulating the RF drive to the tunable filter, producing derivatives of the spectra.
5452587 AIR-CONDITIONING
DEVICE
Honda Yuji; Terada Tomotsug; Samukawa Katsuhik Okazaki, JAPAN Assigned to Nippondenso Co Ltd Temperatures in a first air-conditioning zone and in a second air-conditioning zone are controlled highly independently of each other irrespective of a difference between the setpoint temperatures in these air-conditioning zones or the state of the external air temperature. An ECU calculates target blow-out temperatures in an air-conditioning system on the driver's seat side and in an air-conditioning system on the driver's seat side based upon temperatures Tset(Dr) and Tset(Pa) set by temperature setters, a difference between the setpoint temperatures Tset(Dr) and Tset(Pa), an internal air temperature Tr, an external air temperature Tam, and the amount of solar radiation Ts, and controls, based on the calculated result, the opening degrees of the air-mixing dampers (temperatures of the blown-out