Flow sensor |
|||||||
| 申请号 | JP16641789 | 申请日 | 1989-06-28 | 公开(公告)号 | JPH0329821A | 公开(公告)日 | 1991-02-07 |
| 申请人 | Nissan Motor Co Ltd; | 发明人 | KOBAYASHI HIROSHI; | ||||
| 摘要 | PURPOSE: To obtain a sensor being excellent in mechanical strength and easy to manufacture by constructing flow rate detecting elements of a flow sensor out of tubular bodies having different diameters and by forming a thin-film resistance layer part at least in one of the tubular bodies located inside or outside. CONSTITUTION: Flow rate detecting elements 1b of a flow sensor 1 are constructed of a plurality of concentric tubular bodies 1a having different diameters, a thin-film resistance layer part 7 to be a detecting element surface is formed at least in one of these tubular bodies 1a located inside or outside, and the tubular bodies 1a are disposed so that the axial direction thereof is in accord with the direction of flow of a fluid. In terms of functions, the elements 1b can average a spatial change of the flow, since they are constructed of concentric tubular structure bodies. In terms of a structure, on the other side, they have a large mechanical strength and thus can withstand the severe conditions of the circumstances of vibrations. In terms of manufacture, in addition, the resistance layer 7 can be formed in the tubular body 1a with ease directly or indirectly by a wet-type method and thus the sensor can be mass-produced inexpensively. COPYRIGHT: (C)1991,JPO&Japio |
||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈