发明名称 |
Quartz oscillator temperature sensor |
摘要 |
A quartz oscillator temperature sensor which measures temperature based on the change in resonance or oscillation frequency of a quartz oscillator with the change in temperature the oscillator can be constructed by cutting a piece of quartz from a wafer with a thickness of about 80 to 150 mu m by rotating the plane of the crystal defined by the electrical and mechanical axes 15 DEG to 25 DEG about the electrical axis and then forming the wafer into a quartz tuning fork. The tuning fork is housed in a case sealed with a stem and coupled to electrical leads with heat resistent solder formed with more than about 90 wt % Pb and less than 10% Sn. The area within the case should be at a substantially high vacuum.
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申请公布号 |
US5607236(A) |
申请公布日期 |
1997.03.04 |
申请号 |
US19940268406 |
申请日期 |
1994.06.30 |
申请人 |
SEIKO EPSON CORPORATION |
发明人 |
TAKAGI, MICHIAKI;NAGAI, MITSURU |
分类号 |
G01K11/22;(IPC1-7):G01K11/22 |
主分类号 |
G01K11/22 |
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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