Abstract: A pressure sensor includes a fill tube which is arranged to couple to a process pressure. A sensor is coupled to the fill tube and is configured to measure pressure of fluid in the fill tube as a function of a change of a physical property of the fill tube. Circuitry is provided to measure pressure using the pressure sensor, and to measure pressure based upon the change of the physical property of the fill tube.

Abstract: A pressure sensor includes a sensor which is arranged to couple to a process pressure. A quartz crystal is coupled to the sensor and is configured to measure pressure of fluid in the sensor body. An output from the quartz crystal is related to pressure applied to the sensor body by the process pressure.

Abstract: In a particular embodiment, a process device includes a fluid disruption generation element to generate a fluid disruption within process fluid flowing through a pipe associated with an industrial process and a process variable sensor coupled to the disruption generation element to measure a process parameter. The process device further includes a power generation element adapted to generate an electrical output signal in response to the fluid disruption and a power storage component coupled to the power generation element. The power storage component is adapted to accumulate a charge based on the electrical output signal.

Abstract: A process coupling for coupling a diagnostic device to process fluid of an industrial process includes a process interface configured to physically couple to the process fluid. A fluid pathway extending from the process interface configured to couple a process interface element of the process device to the process fluid. The fluid pathway is configured to optimize transmission of process noise from the process fluid to the process device for use by the diagnostic device.

Abstract: A process transmitter for measuring a process variable in an industrial process comprises a sensor module, a heating device and transmitter circuitry. The sensor module has a sensor for sensing a process variable of an industrial process and generating a sensor signal. The heating device is connected to the sensor module for generating a heat pulse to influence generation of the sensor signal. The transmitter circuitry is connected to the sensor and the heating device. The transmitter circuitry verifies operation of the sensor by measuring a change in the sensor signal due to the heat pulse. In one embodiment of the invention, the heat pulse thermally expands a volume of a fill fluid within the process transmitter. In another embodiment, the heat pulse changes a physical property, such as dielectric, of a fill fluid within the process transmitter.

Abstract: A process transmitter for measuring a process variable in an industrial process comprises a gauge pressure sensor, an excitation source and transmitter circuitry. The gauge pressure sensor measures a pressure difference between a process fluid and a reference volume, and generates a pressure sensor signal representing the pressure difference. The excitation source generates a pressure pulse within the reference volume to influence generation of the pressure sensor signal. The transmitter circuitry is connected to the gauge pressure sensor to provide an output related to a change in the pressure sensor signal due to the pressure pulse.

Abstract: A process transmitter for sensing a process variable of a process fluid includes a process sensor, transmitter circuitry, a transmitter housing and a transmitter mounting component. The process sensor senses the process variable of the process fluid and the transmitter circuitry processes a signal from the process sensor. The transmitter housing receives the process sensor and transmitter circuitry, and the transmitter mounting component isolates the sensor or the transmitter circuitry from the process fluid or external environment. The mechanical integrity sensor validates assembly of the transmitter housing and transmitter mounting component.

Abstract: A process fluid sensor for sensing a characteristic of a process fluid is provided. The process fluid sensor includes a metallic sensor body that defines a chamber therein. A piezoelectric crystal element is disposed proximate the chamber and is configured to generate an electrical signal in response to a mechanical input. The piezoelectric crystal element is mechanically coupleable to the process fluid, but is sealed within the sensor body with the exception of a gaseous pathway. A vortex flowmeter utilizing the process fluid sensor is also provided.

Abstract: A process device for coupling to an industrial process for use in monitoring or controlling the process includes a device housing configured to physically couple to the industrial process. A process variable sensor is configured to measure a process variable and measurement circuitry coupled to the process variable sensor provides an output related to the sensed process variable. A piezoelectric transducer provides an electrical output related to pressure pulsations in the industrial process. Electrical circuitry in the housing includes an input configured to receive the electrical output from the piezoelectric sensor.

Abstract: A process variable transmitter for use in an industrial process control or monitoring system includes a transmitter housing and a process variable sensor having a sensor output related to a process variable. An accelerometer is coupled to the transmitter and provides an accelerometer output related to acceleration. Diagnostic circuitry provides a diagnostic output as a function of the sensor output and the accelerometer output.

Abstract: A process fluid sensor for sensing a characteristic of a process fluid is provided. The process fluid sensor includes a metallic sensor body that defines a chamber therein. A piezoelectric crystal element is disposed proximate the chamber and is configured to generate an electrical signal in response to a mechanical input. The piezoelectric crystal element is mechanically coupleable to the process fluid, but is sealed within the sensor body with the exception of a gaseous pathway. A vortex flowmeter utilizing the process fluid sensor is also provided.

Abstract: An industrial pressure transmitter, for use in industrial process control systems, comprises a differential pressure sensor and an integrated process connector connected to the differential pressure sensor. A process fluid flow duct extends through the process connector and receives an industrial process fluid. A primary element is positioned in the process fluid flow duct for producing a pressure differential in the process fluid across the primary element. The differential pressure sensor is connected to the process fluid flow duct to sense the pressure differential across the primary element.

Abstract: An industrial pressure transmitter, for use in industrial process control systems, comprises a differential pressure sensor and an integrated process connector connected to the differential pressure sensor. A process fluid flow duct extends through the process connector and receives an industrial process fluid. A primary element is positioned in the process fluid flow duct for producing a pressure differential in the process fluid across the primary element. The differential pressure sensor is connected to the process fluid flow duct to sense the pressure differential across the primary element.

Abstract: A selectable mode field transmitter is configurable to operate in one of a plurality of operating modes having different combinations of function, performance, and power consumption. The selectable mode field transmitter includes a housing, a sensor located within the housing, and transmitter circuitry for transmitting data provided by the sensor to a receiver external to the housing. The transmitter circuitry includes a controller that electrically configures the transmitter circuitry to one of a plurality of operational modes in response to mode selection data received from a source external to the housing. Therefore, the selectable mode field transmitter can be configured based on the needs or requirements of a particular application.

Abstract: A pressure sensor including a deformable sensor body formed of a compressible material. A deformation sensor is embedded in the deformable sensor body and has an electrical property which changes in response to deformation of the deformable sensor body. Electrical connections which extend from outside the deformable sensor body to the embedded deformation sensor to provide an indication of an applied line pressure or differential pressure.

Abstract: A process transmitter for sensing a process variable of a process fluid includes a process sensor, transmitter circuitry, a transmitter housing and a transmitter mounting component. The process sensor senses the process variable of the process fluid and the transmitter circuitry processes a signal from the process sensor. The transmitter housing receives the process sensor and transmitter circuitry, and the transmitter mounting component isolates the sensor or the transmitter circuitry from the process fluid or external environment. The mechanical integrity sensor validates assembly of the transmitter housing and transmitter mounting component.

Abstract: A transmitter configured to measure a process variable of an industrial process, includes a pressure sensor configured to couple to a pressure of a fluid. An acoustic detector receives an acoustic signal from the fluid. Measurement circuitry coupled to the pressure sensor and the acoustic detector provides an output related to pressure of the fluid.

Abstract: A process device for coupling to an industrial process for use in monitoring or controlling the process includes a device housing configured to physically couple to the industrial process. A coil of wire is mounted to the housing and a magnet is configured to move through the coil of wire. The relative movement of the magnet is responsive to vibrations in the industrial process. Such relative movement induces an electrical current in the coil of wire. Electrical circuitry in the housing includes an input to receive the electrical current from the coil of wire.

Abstract: A remote process seal system is provided. The seal system includes at least one remote process seal assembly coupled to a process pressure transmitter via a coupling filled with an incompressible fluid. The incompressible fluid is contacted by at least one getter to reduce instabilities caused by the release of hydrogen gas accumulating over time. In one aspect, a layer of getter material is deposited or placed within the pressure transducing portion of the remote process seal assembly.

Abstract: A process device providing total fluid flow control is provided. The device includes a closure mechanism disposed in a flow conduit. The closure mechanism, which is preferably an iris-type diaphragm, provides a variable internal diameter. The device includes a differential pressure sensor for sensing the differential pressure on opposite sides of the diaphragm. A controller receives an indication of differential pressure and generates a control signal to an actuator that actuates the closure mechanism. The closure mechanism, differential pressure sensor and controller create a closed-loop flow controller in a single process device.