JPH0486023A - Temperature compensation oscillator - Google Patents
Temperature compensation oscillatorInfo
- Publication number
- JPH0486023A JPH0486023A JP19965590A JP19965590A JPH0486023A JP H0486023 A JPH0486023 A JP H0486023A JP 19965590 A JP19965590 A JP 19965590A JP 19965590 A JP19965590 A JP 19965590A JP H0486023 A JPH0486023 A JP H0486023A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- oscillator
- compensated
- low
- heat resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 230000001052 transient effect Effects 0.000 abstract description 3
- 239000003779 heat-resistant material Substances 0.000 abstract 3
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
Landscapes
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、温度補償発振器に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a temperature compensated oscillator.
従来から無線装置や搬送装置の信号発生源として周波数
安定度の高い水晶発振器や弾性表面波発振器が実用化さ
れているが、より周波数安定度を高めるためには、温度
補償の付加回路を必要としいた。Crystal oscillators and surface acoustic wave oscillators with high frequency stability have been put into practical use as signal generation sources for wireless equipment and transport equipment, but in order to further increase frequency stability, an additional circuit for temperature compensation is required. there was.
第４図は従来の温度補償発振器の側断面図である。FIG. 4 is a side sectional view of a conventional temperature compensated oscillator.
従来の温度補償発振器は、温度検出器１と、温度補償電
圧発生部２と、電圧制御発振器３とを金属あるいは絶縁
物のケース８で覆う構造であった。A conventional temperature-compensated oscillator has a structure in which a temperature detector 1, a temperature-compensated voltage generator 2, and a voltage-controlled oscillator 3 are covered with a metal or insulating case 8.
上述した従来の温度補償発振器は、温度検出器］と温度
補償電圧発生部２と電圧制御発振器３とが、機械的にも
、熱的にも離れており、特に温度検出器１と電圧制御発
振器３との間の熱時定数に差ができることにより、過度
的な温度変動に対し温度補償が困難となるという問題点
があった。In the conventional temperature-compensated oscillator described above, the temperature detector], the temperature-compensated voltage generator 2, and the voltage-controlled oscillator 3 are separated both mechanically and thermally. There was a problem in that the difference in thermal time constant between the two temperatures made it difficult to compensate for excessive temperature fluctuations.
本発明の目的は前述の問題点を克服した過度的な温度変
動に対し温度補償ができる温度補償発振器を提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to provide a temperature compensated oscillator that overcomes the above-mentioned problems and can compensate for excessive temperature fluctuations.
本発明の温度補償発振器は、温度検出器と、温度補償電
圧発生部と、電圧制御発振器とから構成する回路全体を
低熱抵抗物質内に封入する。The temperature-compensated oscillator of the present invention encapsulates the entire circuit including a temperature detector, a temperature-compensated voltage generator, and a voltage-controlled oscillator within a low thermal resistance material.
本発明の温度補償発振器は、前記回路全体を封入する前
記低熱抵抗物質の少なくとも一部を導電性材料および断
熱材料の少なくともいずれか一方で覆ってもよい。In the temperature compensated oscillator of the present invention, at least a portion of the low thermal resistance material that encapsulates the entire circuit may be covered with at least one of a conductive material and a heat insulating material.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の第１の実施例の側断面図である。FIG. 1 is a side sectional view of a first embodiment of the invention.
プリント基板４上の取りつけられた温度検出器１と、温
度補償電圧発生部２と、電圧制御発振器３とを低熱抵抗
物質５内に封入している。従って温度検出器１と電圧制
御発振器３との間には空気の対流もなくなり、また温度
差も常に１°Ｃ以下にできるので、過度的な温度変動要
素が温度補償発振器の外部にあっても温度補償可能であ
る。A temperature detector 1 mounted on a printed circuit board 4, a temperature compensation voltage generator 2, and a voltage controlled oscillator 3 are enclosed in a low thermal resistance material 5. Therefore, there is no air convection between the temperature detector 1 and the voltage controlled oscillator 3, and the temperature difference can always be kept below 1°C, so even if there is an excessive temperature fluctuation element outside the temperature compensated oscillator. Temperature compensation is possible.
第２図は本発明の第２の実施例の側断面図である。FIG. 2 is a side sectional view of a second embodiment of the invention.
電気的シールドを必要とする場合は、低熱抵抗物質５ご
と回路全体を導電性材料６で覆えばよいことを示してい
る。It is shown that if electrical shielding is required, the entire circuit including the low thermal resistance material 5 may be covered with a conductive material 6.
第３図は本発明の第３の実施例の側断面図である。FIG. 3 is a side sectional view of a third embodiment of the invention.
温度補償発振器を温度の適度変動に対しさらに周波数安
定度を向上させるには、低熱抵抗物質５を断熱材料で７
で覆えばよいことを示している。In order to further improve the frequency stability of the temperature compensated oscillator against moderate temperature fluctuations, the low thermal resistance material 5 can be replaced with a heat insulating material 7.
This indicates that you can cover it with
以上説明したように本発明は低熱抵抗物質に発振器本体
を封入することにより、過度的な温度変動にも安定な温
度補償発振器を実現することができる効果がある。As described above, the present invention has the effect of realizing a temperature-compensated oscillator that is stable even with transient temperature fluctuations by encapsulating the oscillator body in a low thermal resistance material.
第１図は本発明の第１の実施例の側断面図、第２図は本
発明の第２の実施例の側断面図、第３図は本発明の第３
の実施例の側断面図、第４図は従来の温度補償発振器の
側断面図である。
１・・・温度検出器、２・・・温度補償電圧発生部、３
・・・電圧制御発振器、４・・・プリント基板、５・・
・低熱抵抗物質、６・・・導電性材料、７・・・断熱材
料、８・・・ケース。FIG. 1 is a side sectional view of a first embodiment of the present invention, FIG. 2 is a side sectional view of a second embodiment of the present invention, and FIG. 3 is a side sectional view of a third embodiment of the present invention.
FIG. 4 is a side sectional view of a conventional temperature compensated oscillator. 1...Temperature detector, 2...Temperature compensation voltage generator, 3
... Voltage controlled oscillator, 4... Printed circuit board, 5...
-Low heat resistance material, 6... Conductive material, 7... Heat insulating material, 8... Case.
Claims (1)
振器とから構成する回路全体を低熱抵抗物質内に封入す
ることを特徴とする温度補償発振器。 ２、前記回路全体を封入する前記低熱抵抗物質の少なく
とも一部を導電性材料および断熱材料の少なくともいず
れか一方で覆ったことを特徴とする請求項１記載の温度
補償発振器。[Claims] 1. A temperature-compensated oscillator characterized in that the entire circuit consisting of a temperature detector, a temperature-compensated voltage generator, and a voltage-controlled oscillator is enclosed within a low thermal resistance material. 2. The temperature compensated oscillator according to claim 1, wherein at least a portion of the low thermal resistance material that encapsulates the entire circuit is covered with at least one of a conductive material and a heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19965590A JPH0486023A (en) | 1990-07-27 | 1990-07-27 | Temperature compensation oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19965590A JPH0486023A (en) | 1990-07-27 | 1990-07-27 | Temperature compensation oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0486023A true JPH0486023A (en) | 1992-03-18 |
Family
ID=16411443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19965590A Pending JPH0486023A (en) | 1990-07-27 | 1990-07-27 | Temperature compensation oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0486023A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7649426B2 (en) | 2006-09-12 | 2010-01-19 | Cts Corporation | Apparatus and method for temperature compensation of crystal oscillators |
-
1990
- 1990-07-27 JP JP19965590A patent/JPH0486023A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7649426B2 (en) | 2006-09-12 | 2010-01-19 | Cts Corporation | Apparatus and method for temperature compensation of crystal oscillators |
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