发明授权
- 专利标题: Measuring insert for temperature measurement
- 专利标题(中): 用于温度测量的测量插件
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申请号: US13516009申请日: 2010-11-09
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公开(公告)号: US09074945B2公开(公告)日: 2015-07-07
- 发明人: Wilfried Meissner , Helmut Kalteis , Peter Seefeld
- 申请人: Wilfried Meissner , Helmut Kalteis , Peter Seefeld
- 申请人地址: DE Nesselwang
- 专利权人: ENDRESS + HAUSER WETZER GMBH + CO. KG
- 当前专利权人: ENDRESS + HAUSER WETZER GMBH + CO. KG
- 当前专利权人地址: DE Nesselwang
- 代理机构: Bacon & Thomas, PLLC
- 优先权: DE102009054747 20091216
- 国际申请: PCT/EP2010/067148 WO 20101109
- 国际公布: WO2011/072957 WO 20110623
- 主分类号: G01K1/08
- IPC分类号: G01K1/08 ; G01K1/10
摘要:
A temperature measuring insert composed of ceramic or sintered materials of magnesium oxide or aluminum oxide accomodates, on its end facing the measured medium, temperature sensor elements, such as thermocouples and temperature measuring resistors, as a measuring tip, installable singly or with others in metal or ceramic protective tubes. The site of the measuring tip, a water adsorption behavior differing from the remaining measuring insert material is present, in order to protect the temperature sensor elements in the case of rapid process related temperature changes, in order to prevent, in the case of heating, effects due to superheated steam. A solution is provided by features including that the measuring insert has a jacketing comprising densified desiccant coatings, which have a gradient with a continuously or stepwise adapted water adsorptive behavior in the direction of the temperature sensor element, wherein, for example, a decreasing water adsorption is realized according to the invention by means of different fractions of modified and unmodified adsorbents as well as hydrophobic, super hydrophobic or hydrophobized ceramic parts.
公开/授权文献
- US20120250725A1 MEASURING INSERT FOR TEMPERATURE MEASUREMENT 公开/授权日:2012-10-04