发明名称 |
Linear drive motor control in a cryogenic refrigerator |
摘要 |
In a Stirling cryogenic refrigerator, the movement of the displacer is monitored by sensing the back EMF in the displacer drive coil throughout displacer stroke. The back EMF signal is applied through a feedback circuit to control the phase relationship of displacer movement with a reference signal related to the pressure wave.
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申请公布号 |
US4664685(A) |
申请公布日期 |
1987.05.12 |
申请号 |
US19850799486 |
申请日期 |
1985.11.19 |
申请人 |
HELIX TECHNOLOGY CORPORATION |
发明人 |
YOUNG, NIELS O. |
分类号 |
F02G1/043;F02G1/06;F25B9/14;(IPC1-7):F25B9/00;F01B29/10 |
主分类号 |
F02G1/043 |
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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