| 发明名称 |
Frost sensor |
| 摘要 |
A frost sensor for detecting the presence of frost uses an acoustic device having an acoustic transmitting medium made of a magnetostrictive material, particularly an amorphous metal alloy, of a ribbon shape, as means for detecting the frost.
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| 申请公布号 |
US4404852(A) |
申请公布日期 |
1983.09.20 |
| 申请号 |
US19810276816 |
申请日期 |
1981.06.24 |
| 申请人 |
HITACHI, LTD.;HITACHI METALS, LTD.;RESEARCH DEVELOPMENT COOPERATION OF JAPAN |
发明人 |
GOTO, NORIO |
| 分类号 |
G01N5/02;F25D21/02;G01H11/04;G01N29/12;G08B19/02;(IPC1-7):G01N29/00 |
主分类号 |
G01N5/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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