Abstract:
A magnetic flowmeter for measuring flow rate of a process fluid, includes a magnetic coil arranged to apply a magnetic field to the process fluid. A pair of electrodes are electronically coupled to the process fluid and arranged to sense a voltage induced in the process fluid related to the applied magnetic field and the flow rate of the process fluid. A molded flow tube of a non-conductive material is arranged to receive a flow of the process fluid. The flow tube is molded around the magnetic coil and the pair of electrodes and is configured to support the magnetic coil and the pair of electrodes. Flow meter circuitry is configured to apply a current to the magnetic coil and receive the resultant voltage sensed by the pair of electrodes.
Abstract:
A process instrument having a wafer-style body for mounting between an upstream flanged pipe and a downstream flanged pipe has a flow passage, a transmitter connected to the body, and first and second end plates fixed to the body. The first end plate has a first set of cams for engaging a plurality of threaded fasteners extending between the upstream flanged pipe and the downstream flanged pipe. The second end plate has a second set of cams for engaging the plurality of threaded fasteners such that the first set of cams and the second set of cams center the flow passage with respect to the upstream flanged pipe and the downstream flanged pipe.
Abstract:
A magnetic flowmeter for measuring flow of a process fluid includes a meter body having an opening formed therein. The meter body is configured to be inserted in-line between process piping which carries the process fluid. A moveable extension is coupled to the meter body and configured to extend into the process piping. A coil of wire is carried by the extension and configured to generate a magnetic field. A pair of electrodes sense an EMF in the process fluid generated as a function of the applied magnetic field and flow of the process fluid.
Abstract:
A wafer-type electromagnetic flow sensor includes a single-piece chassis having a pair of faces and a flow conduit extending between the pair of faces. Each face of the chasses includes a feature configured to engage a metal sealing ring. A non-conductive liner is disposed in the flow conduit of the single-piece chassis. A plurality of electromagnetic coils is configured to generate a flux into process fluid flowing through the flow conduit. A pair of electrodes is configured to electrically couple to the process fluid. A feedthrough assembly is configured to maintain process fluid pressure while allowing a plurality of electrical conductors to pass therethrough.
Abstract:
A wafer-type electromagnetic flow sensor includes a single-piece chassis having a pair of faces and a flow conduit extending between the pair of faces. Each face of the chasses includes a feature configured to engage a metal sealing ring. A non-conductive liner is disposed in the flow conduit of the single-piece chassis. A plurality of electromagnetic coils is configured to generate a flux into process fluid flowing through the flow conduit. A pair of electrodes is configured to electrically couple to the process fluid. A feedthrough assembly is configured to maintain process fluid pressure while allowing a plurality of electrical conductors to pass therethrough.
Abstract:
A magnetic flowmeter includes a pipe with a non-conductive PTFE liner, magnetic coils to generate a magnetic field, and electrodes in contact with the fluid on opposite sides of the pipe. The electrodes comprise conductive PTFE patch electrodes bonded to the non-conductive PTFE liner so that an inner end of each patch electrode is exposed to fluid flowing through the interior pipe and an outer end of each patch electrode is aligned with an electrode hole in the pipe.
Abstract:
A magnetic flowmeter for measuring flow of a process fluid includes a meter body having an opening formed therein. The meter body is configured to be inserted in-line between process piping which carries the process fluid. A moveable extension is coupled to the meter body and configured to extend into the process piping. A coil of wire is carried by the extension and configured to generate a magnetic field. A pair of electrodes sense an EMF in the process fluid generated as a function of the applied magnetic field and flow of the process fluid.
Abstract:
A magnetic flowmeter for sensing process fluid flow is provided. The flowmeter includes a tube configured to receive the process fluid flow therethrough. A plurality of electrodes is disposed to contact process fluid. At least one electromagnetic coil is disposed proximate the tube. Flowmeter electronics are configured to drive a current through at least one electromagnetic coil and to sense a signal developed across a plurality of electrodes disposed to contact process fluid. A flexible circuit module is disposed proximate the tube, and has at least one flexible circuit containing a plurality of electrical traces electrically coupled to the flowmeter electronics. The at least one electromagnetic coil includes a first coil in the flexible circuit module that is coupled to the electrical traces.
Abstract:
A magnetic flowmeter for measuring flow rate of a process fluid, includes a magnetic coil arranged to apply a magnetic field to the process fluid. A pair of electrodes are electronically coupled to the process fluid and arranged to sense a voltage induced in the process fluid related to the applied magnetic field and the flow rate of the process fluid. A molded flow tube of a non-conductive material is arranged to receive a flow of the process fluid. The flow tube is molded around the magnetic coil and the pair of electrodes and is configured to support the magnetic coil and the pair of electrodes. Flow meter circuitry is configured to apply a current to the magnetic coil and receive the resultant voltage sensed by the pair of electrodes.
Abstract:
A magnetic flowmeter includes a pipe with a non-conductive PTFE liner, magnetic coils to generate a magnetic field, and electrodes in contact with the fluid on opposite sides of the pipe. The electrodes comprise conductive PTFE patch electrodes bonded to the non-conductive PTFE liner so that an inner end of each patch electrode is exposed to fluid flowing through the interior pipe and an outer end of each patch electrode is aligned with an electrode hole in the pipe.