Measuring and testing – Probe or probe mounting
Patent
1998-10-27
1999-11-30
Noland, Thomas P.
Measuring and testing
Probe or probe mounting
G01F 2324
Patent
active
059922516
ABSTRACT:
A sensor apparatus for transmitting electrical pulses from a signal line into and out of a vessel to measure a process variable. The sensor apparatus includes a mounting section configured to be coupled to the vessel, a conductive probe element, a dielectric insert located within the mounting section, a conductive pin coupled to the top end of the probe element, and an electrical connector coupled to the conductive pin. The conductive probe element has a predetermined diameter and is formed to include a section having a reduced diameter adjacent a top end of the probe element and a tapered section providing transition from the probe element to the reduced diameter section. The dielectric insert includes an inwardly tapered section to prevent movement of the probe element in a direction toward the mounting section and an outwardly tapered section. The conductive pin has a larger diameter than the diameter of the reduced-diameter section of the probe element to engage the outwardly tapered section of the dielectric insert and to prevent movement of the probe element in a direction away from the mounting section. The electrical connector is configured to couple the signal line to the probe element through the conductive pin.
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Cummings Donald D.
Grieger Bernd D.
Endress + GmbH + Co.
Noland Thomas P.
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