| 发明名称 |
DEVICE FOR DETECTING DATA RELATING TO THE PASSAGE OF VEHICLES ON A ROAD |
| 摘要 |
A device for detecting data relating to the passage of vehicles on the road including a piezoelectric effect cable and a cylindrical metal tube having an inside diameter which is larger than the outside diameter of the piezoelectric cable with the space between the cable and inner walls of the tube being filled with a compacted metal oxide power.
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| 申请公布号 |
US5206642(A) |
申请公布日期 |
1993.04.27 |
| 申请号 |
US19910693738 |
申请日期 |
1991.04.30 |
| 申请人 |
U.S. PHILIPS CORPORATION |
发明人 |
GREGOIRE, PIERRE;BAILLEUL, GILLES |
| 分类号 |
G01G3/13;G01G19/02;G06M3/00;G06M7/00;G08G1/01;G08G1/015;G08G1/042;G08G1/052;H01B7/16 |
主分类号 |
G01G3/13 |
| 代理机构 |
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代理人 |
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| 地址 |
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