Rosemount Analytical Inc.

Picker International, Inc.

Rosemount Inc.

Ohio Associated Enterprises, Inc.

Nemer, Joseph C.

Mark D Stojkov

Joseph C Nemer

Dennis K Everett

Victor J Hrdlicka

Patrick M Flanagan

John D Geither

John T Venaleck

Park French

James A Bacnik

John E Hartman

Douglas Evan Simmers

Charles R Anspach

Carl W Rose, Jr

James D Kramer

Anni S Wey

Douglas E Simmers

A probe gas analysis system is provided. The probe gas analysis system comprises a probe body configured to be exposed to a source of process gas. The probe gas analysis system also comprises a sensor cell assembly having a sensor cell with a sensing side and a reference side. The sensing side is disposed to contact the source of process gas, and to generate a signal indicative of a detected difference in oxygen concentration between the reference side and the sensing side. The probe gas analysis system also comprises a substantially permanent seal coupling the sensor cell assembly to the probe body, wherein the substantially permanent seal separates the reference side from the sensing side.

Oxygen sensing probe/analyzer

An in situ oxygen analyzer having an intrinsically-safe output and a heated probe is provided. The probe is extendable into a source of process gas and has an oxygen sensor and heater disposed therein. The heater is configured to heat the oxygen sensor to a temperature sufficient to operate the oxygen sensor. A housing is coupled to the probe and has first and second chambers. The first chamber is explosion-rated and includes non-intrinsically safe circuitry coupled to the heater to energize the heater. The second chamber contains only intrinsically-safe circuitry that complies with an intrinsically-safe specification. The first and second chambers are isolated from one another. The non-intrinsically-safe circuitry is coupled to the intrinsically-safe circuitry through an energy-limiting isolator.

In situ heated oxygen probe with intrinsically safe output

A process combustion transmitter is provided. The transmitter includes a process probe extendible into a flow of process combustion exhaust. The process probe has a measurement cell and a diffuser that define a chamber within the process probe. Electronic circuitry is coupled to the measurement cell and is configured to provide an indication relative to a combustion process based on an output signal of the measurement cell. A pressure sensor is coupled to the electronic circuitry and is fluidically coupled to the chamber. The electronic circuitry is configured to provide an adjusted calibration based on pressure measured within the chamber during a calibration.

In situ probe with improved diagnostics and compensation

Oxygen sensing probe

An outdrive system for watercraft includes use of plastic or other relatively flexible material, e.g., compared to metal, especially as a housing material, and techniques which enable and/or at least facilitate use of such housing material. One of those techniques employs a flexible member, such as a belt, to couple power between the input and output of an outdrive and another employs a cooling system to remove heat. The invention also relates to use in a vehicle drive, especially for watercraft, of housing materials that are not subject to corrosion, galvanic action and the like.

Marine drive system with belt drive

A system and method is disclosed for minimizing residual vibration of a radiographic system due to rapid movement of a radiographic film cassette between a park and expose position. The cassette is moved by a servo system including a servo motor which is responsive to a voltage input waveform to drive the cassette. A waveform is chosen for the voltage input such that no inpulse derivatives appear until the waveform has been diferentiated at least three times. The primary natural resonant frequency of the system is determined and noted. The duration of the selected input waveform is adjusted such that the frequency spectrum of the adjusted input waveform defines a relative null which approximately coincides with the primary resonant frequency. The amplitude of the voltage input waveform is then further adjusted as a function of the distance to be traveled by the cassette between the park and expose positions. The servo system can optionally be operated over a portion of the cassette transit in a closed loop fashion. In a mechanical embodiment, sinusoidal cassette acceleration can be effected by the use of a mechanical drive linkage coupled between a motor and the cassette, the drive linkage employing a cycloidal cam and associated cam follower to govern the profile of cassette movement.

Spot filmer cassette transport vibration suppression

A system and method is disclosed for minimizing residual vibration of a radiographic system due to rapid movement of a radiographic film cassette between a park and expose position. The cassette is moved by a servo system including a servo motor which is responsive to a voltage input waveform to drive the cassette. A waveform is chosen for the voltage input such that no impulse derivatives appear until the waveform has been differentiated at least three times. The primary natural resonant frequency of the system is determined and noted. The duration of the selected input waveform is adjusted such that the frequency spectrum of the adjusted input waveform defines a relative null which approximately coincides with the primary resonant frequency. The amplitude of the voltage input waveform is then further adjusted as a function of the distance to be traveled by the cassette between the park and expose positions. The servo system can optionally be operated over a portion of the cassette transit in a closed loop fashion. In a mechanical embodiment, sinusoidal cassette acceleration can be effected by the use of a mechanical drive linkage coupled between a motor and the cassette, the drive linkage employing a cycloidal cam and associated cam follower to govern the profile of cassette movement.

Spot filmer cassette transport vibration support

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Parma, OH, United States of America

Mark D Stojkov