发明申请
- 专利标题: Fluid sensing probe
- 专利标题(中): 流体感应探头
-
申请号: US10436360申请日: 2003-05-12
-
公开(公告)号: US20040227519A1公开(公告)日: 2004-11-18
- 发明人: S. Asim Gul
- 申请人: Mamac systems, Inc.
- 申请人地址: MN Eden Prairie
- 专利权人: Mamac systems, Inc.
- 当前专利权人: Mamac systems, Inc.
- 当前专利权人地址: MN Eden Prairie
- 主分类号: G01N027/28
- IPC分类号: G01N027/28
摘要:
A fluid sensor probe such as a temperature probe uses heat shrink tubing to seal and provide strain relief at a proximal end of the probe. The heat shrink tubing uses a layer of hot melt adhesive along its inside surface to form a strong bond and hermetic seal. The heat shrink tubing is applied as an inner tubing around circuit wires extending into the probe and as an outer tubing around the inner tubing and around the proximal end of the probe housing. Together the inner tubing and the outer tubing can hermetically seal a substantial gap between the probe housing and the circuit wires. In a fast response probe, prior to closing the distal end of the probe housing with an end wall, openings are punched in a side wall of the probe housing against a mandrel. The openings permit fluid flow to contact the sensing element within the probe housing. Heat shrink tubing can be used to seal the circuit wires and prevent leakage.