Spring-loaded temperature sensor

A temperature sensor and sensor technology, applied in thermometers, thermometer parts, thermometers with directly heat-sensitive electric/magnetic elements, etc., can solve the problem of slow response speed of temperature sensors, temperature reading errors, and reduced conduction efficiency, etc. question

Active Publication Date: 2014-11-05
ROSEMOUNT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lack of physical contact between the probe tip and the bottom of the thermowell reduces conduction efficiency, causes the temperature sensor to respond slower to changes in fluid temperature, and can also cause errors in temperature readings

Method used

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  • Spring-loaded temperature sensor
  • Spring-loaded temperature sensor
  • Spring-loaded temperature sensor

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0015] Physical contact between the temperature sensor probe tip and the bottom of the thermowell is an important factor in achieving a rapid measurement response to changes in fluid temperature and maintaining the desired accuracy of temperature readings. One way to help ensure physical contact is to include a resilient device such as a spring in the temperature sensor. The resilient means is adapted to create a force between the temperature probe and the adapter attached to the thermowell to push or load the probe end into physical contact with the bottom of the thermowell. Typically, such "spring loaded" temperature sensors include a temperature probe having a length that exceeds the length of the thermowell bore to ensure operation of the spring device and contact of the probe tip with the bottom of the thermowell at the end of the bore. Such an arrangement can ensure adequate physical contact between the probe tip and the bottom of the thermowell over the entire range of ...

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PUM

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Abstract

A temperature sensor includes a temperature probe, an adapter, a resilient device, and a visual indicator. The temperature probe includes a temperature sensing device disposed at a temperature probe tip. The adapter surrounds a portion of the temperature probe such that the temperature probe is movable within the adapter in a lengthwise direction. The adapter includes a physical reference. The resilient device is adapted to produce a force between the adapter and the temperature probe. The force being variable based on a position of the temperature probe within the adapter. The visual indicator is disposed on a surface of the temperature probe. Alignment of the visual indicator with the physical reference corresponds to a desired force produced by the resilient device.

Description

technical field [0001] The present invention generally relates to temperature sensing assemblies for industrial processes. In particular, the invention relates to a temperature sensor for a thermowell. Background technique [0002] Industrial process temperature sensing components may be used to sense the temperature of a fluid flowing through a pipe or contained within a vessel. The temperature sensing assembly includes a temperature sensor and may also include a thermowell. The temperature sensor includes a temperature probe having a temperature sensing device located at or near the end of the probe. The probe tip may be inserted into a hole extending into the thermowell to physically contact the bottom of the thermowell. The thermowell is designed to be in physical contact with the fluid to protect the temperature sensor within the thermowell from physical damage from the fluid such as impact, corrosion, etc., while conducting an efficient conduction between the fluid ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): G01K7/02G01K1/08G01K1/02
CPCG01K1/08G01K1/14G01K1/10G01F3/12G01F15/14G01L1/00
Inventor安德鲁·约翰·科兹曼安德鲁·史蒂文·德尔克凯尔·史蒂文·沃伦艾伦·约翰·卡森迪尔克·维利·鲍施科
OwnerROSEMOUNT INC