JPH0496506A - Temperature compensation type piezo-oscillator - Google Patents
Temperature compensation type piezo-oscillatorInfo
- Publication number
- JPH0496506A JPH0496506A JP21389690A JP21389690A JPH0496506A JP H0496506 A JPH0496506 A JP H0496506A JP 21389690 A JP21389690 A JP 21389690A JP 21389690 A JP21389690 A JP 21389690A JP H0496506 A JPH0496506 A JP H0496506A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- voltage
- piezo
- temperature compensation
- piezoelectric oscillator
- 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
- 239000000126 substance Substances 0.000 claims abstract 4
- 230000010355 oscillation Effects 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 10
- 239000011810 insulating material Substances 0.000 claims description 5
- 230000001052 transient effect Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 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
- Oscillators With Electromechanical Resonators (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は温度補償型圧電発振器に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a temperature compensated piezoelectric oscillator.
従来から無線装置や搬送装置等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ていた。Crystal oscillators and surface acoustic wave oscillators with high frequency stability have been put into practical use as signal generation sources for wireless equipment, transport equipment, etc., but in order to further increase frequency stability, an additional circuit for temperature compensation is required. It was.
第４図は従来の温度補償型圧電発振器の側断面図である
。FIG. 4 is a side sectional view of a conventional temperature compensated piezoelectric oscillator.
従来の温度補償型圧電発振器は、温度検出器］と、温度
補償電圧発生器２と、外付けの圧電発振素子３との組合
せて動作する電圧制御圧電発振器４とを金属あるいは絶
縁物のケース４］で覆う横造てあった。A conventional temperature-compensated piezoelectric oscillator includes a temperature detector], a temperature-compensated voltage generator 2, and a voltage-controlled piezoelectric oscillator 4 that operates in combination with an external piezoelectric oscillation element 3, in a metal or insulating case 4. ] It was a horizontal structure covered with.
上述した従来の温度補償型圧電発振器は、温度検出器１
と圧電発振素子３と温度補償電圧発生部２と電圧制御発
振器４とが機械的、熱的に離れており、特に温度検出器
１と圧電発振素子３間の熱時定数に差かできると過渡的
な温度変動に対し、温度補償が困難になるという問題点
があった。また圧電発振素子３をプリント基板等にはん
な付けしているため圧電発振素子３を交換する場合再度
はんだ付けして取りつけなけれはならないという問題点
もあった。The conventional temperature compensated piezoelectric oscillator described above has a temperature sensor 1
The piezoelectric oscillator 3, the temperature compensated voltage generator 2, and the voltage controlled oscillator 4 are mechanically and thermally separated from each other. There was a problem in that it became difficult to compensate for temperature fluctuations. Furthermore, since the piezoelectric oscillation element 3 is soldered to a printed circuit board or the like, there is a problem in that when the piezoelectric oscillation element 3 is replaced, it must be re-soldered and attached.
本発明の目的は、過渡的な温度変動にも安定でかつ圧電
発振素子を容易に交換できる温度補償型圧電発振器を提
供することにある。An object of the present invention is to provide a temperature-compensated piezoelectric oscillator that is stable against transient temperature fluctuations and whose piezoelectric oscillation element can be easily replaced.
本発明の温度補償型圧電発振器は、周囲の温度を検出し
電圧値に変換して出力する温度検出器と、前記温度検出
器のアナログ出力を受信しディジタルコート化しこのデ
ィジタルコードの指定するアドレスに記憶されている温
度補償用テイジタルコードを読み出しアナログ信号化し
た電圧値として出力する温度補償電圧発生部と、前記温
度補償電圧発生部の出力する電圧値によって制御される
外付けの圧電発振素子との組合せで動作する電圧制御圧
電発振器とを組合せて圧電発振器とし、この圧電発振器
全体を分割可能な熱伝導率の大きい物質の容器に収納し
、前記圧電発振素子をソケットを介して接続すると共に
前記温度検出器と前記圧電発振素子とを前記熱伝導率の
大きい物質の容器に接触させて取付ける構成である。The temperature compensated piezoelectric oscillator of the present invention includes a temperature detector that detects the ambient temperature, converts it to a voltage value, and outputs it, and receives the analog output of the temperature detector, converts it into a digital code, and sends it to the address specified by this digital code. a temperature compensation voltage generation section that reads out a stored temperature compensation digital code and outputs it as a voltage value converted into an analog signal; and an external piezoelectric oscillation element that is controlled by the voltage value outputted from the temperature compensation voltage generation section. A piezoelectric oscillator is produced by combining a voltage-controlled piezoelectric oscillator that operates in combination with The temperature sensor and the piezoelectric oscillation element are attached in contact with the container made of the material having high thermal conductivity.
本発明の温度補償型圧電発振器は、前記熱伝導率の大き
い物質の容器の周囲を分割可能な断熱材で覆ってもよい
。In the temperature-compensated piezoelectric oscillator of the present invention, the periphery of the container made of the material with high thermal conductivity may be covered with a divisible 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.
本発明の温度補償型圧電発振器は、周囲の温度を検出し
電圧値に変換して出力する温度検出器］と、温度検出器
１のアナログ出力を受信し予め記憶しである温度補償用
ディジタルコードを読み出して電圧値として出力する温
度補償電圧発生部２と、温度補償電圧発生部２の出力す
る電圧値によって制御され外付けの圧電発振素子３との
組合せで動作する電圧制御発振器４と、圧電発振素子３
を接続するためのソケット５とをプリント基板６の上に
搭載し、このプリント基板にと熱伝導率の大きい物質の
容器７内に収納し、容器７と同一の物質のふた８で密封
する構造である。このとき温度検出器１と圧電発振素子
３とは、ふた８と密着するよう取付けられている。この
ように構成することにより、各部の温度を均一化してい
る。従って、圧電発振素子３と温度検出器１との温度差
は常に１°Ｃ以下になり、過渡的な温度変動が温度補償
型圧電発振器の外部にあっても温度補償可能である。ま
たソケット５を使用しているため圧電発振素子３の交換
も容易てあり各種の周波数の発振器を実現可能である。The temperature-compensated piezoelectric oscillator of the present invention includes a temperature detector that detects the ambient temperature, converts it to a voltage value, and outputs it, and a temperature-compensated digital code that receives the analog output of the temperature detector 1 and stores it in advance. A voltage controlled oscillator 4 operates in combination with an external piezoelectric oscillator 3 that is controlled by the voltage value output from the temperature compensated voltage generator 2; Oscillation element 3
A socket 5 and a socket 5 for connecting are mounted on a printed circuit board 6, and this printed circuit board is housed in a container 7 made of a material with high thermal conductivity, and the structure is sealed with a lid 8 made of the same material as the container 7. It is. At this time, the temperature detector 1 and the piezoelectric oscillation element 3 are attached so as to be in close contact with the lid 8. With this configuration, the temperature of each part is made uniform. Therefore, the temperature difference between the piezoelectric oscillation element 3 and the temperature detector 1 is always 1° C. or less, and even if transient temperature fluctuations occur outside the temperature compensated piezoelectric oscillator, temperature compensation is possible. Furthermore, since the socket 5 is used, the piezoelectric oscillation element 3 can be easily replaced, and oscillators with various frequencies can be realized.
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.
熱伝導率の大きい物質の容器７とふた８とて密封した温
度補償型圧電発振器を、断熱材の容器９と同一の材質の
ふた１０とで覆い、外部からの過渡的な温度変動に対し
て影響を軽減している。A temperature-compensated piezoelectric oscillator sealed with a container 7 made of a material with high thermal conductivity and a lid 8 is covered with a container 9 made of an insulating material and a lid 10 made of the same material to prevent transient temperature fluctuations from the outside. The impact is being reduced.
これにより、第１の実施例に比較し、さらに過渡的な温
度変動に対して、周波数安定度を向−トさせることが可
能となる。This makes it possible to further improve frequency stability against transient temperature fluctuations compared to the first embodiment.
第３図は温度補償電圧発生部のブロック図である。FIG. 3 is a block diagram of the temperature compensation voltage generator.
温度補償電圧発生部２は、アナログ−ディジタル変換器
２１と、メモリ回路２２とディジタルアナログ変換器２
３とから構成されている。温度検出器１の出力するアナ
ログ信号は、アナログディジタル変換器２１かディジタ
ルコードに変換し、メモリ回路２２に供給する。メモリ
回路２２は、電圧制御圧電発振器４の周波数温度特性を
補償するために、温度アドレス信号であるアナログ。The temperature compensated voltage generator 2 includes an analog-to-digital converter 21, a memory circuit 22, and a digital-to-analog converter 2.
It is composed of 3. The analog signal output from the temperature detector 1 is converted into a digital code by an analog-to-digital converter 21 and supplied to a memory circuit 22 . The memory circuit 22 uses an analog temperature address signal to compensate for the frequency-temperature characteristics of the voltage-controlled piezoelectric oscillator 4.
ディジタル変換器２１のディジタルコードに対応した温
度補償ディジタルコードをあらかじ７め記憶させておき
、周囲温度が変化するとアドレス信号も変化し、メモリ
回路２２から温度補償ティシタルコートを読み出す。こ
の読み出された温度補償ディジタルコードは、ティシタ
ルーアナログ変換器２３に供給され、アナログ信号に変
換され、電圧制御圧電発振器４に供給される。このよう
にして周波数温度補償が行われる。A temperature compensation digital code corresponding to the digital code of the digital converter 21 is stored in advance, and when the ambient temperature changes, the address signal also changes and the temperature compensation digital code is read out from the memory circuit 22. This read temperature compensation digital code is supplied to the digital analog converter 23, converted into an analog signal, and supplied to the voltage controlled piezoelectric oscillator 4. Frequency temperature compensation is performed in this way.
以上説明したように本発明は、温度補償型圧電発振器を
分割可能な熱伝導率の大きい物質の容器に収容し、圧電
発振素子をソケッｌ〜を介して接続すると共に、温度検
出器と圧電発振素子とを熱伝導率の物質の容器に接触さ
せて取付けることにより、過渡的な温度変動にも安定な
温度補償型圧電発振器を実現できる効果がある。また圧
電発振素子の取りつけにソケットを使用しているため圧
電発振素子の交換も容易であり、各種の周波数の発振器
を容易に実現できる効果もある。As explained above, the present invention accommodates a temperature-compensated piezoelectric oscillator in a divisible container made of a material with high thermal conductivity, connects a piezoelectric oscillation element through a socket, and connects a temperature sensor to a piezoelectric oscillator. By attaching the element in contact with a container made of a material with thermal conductivity, it is possible to realize a temperature-compensated piezoelectric oscillator that is stable even under transient temperature fluctuations. Furthermore, since a socket is used to attach the piezoelectric oscillation element, it is easy to replace the piezoelectric oscillation element, and oscillators with various frequencies can be easily realized.
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図は温度補償電圧
発生部のブロック図、第４図は従来の温度補償型圧電発
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
・・・圧電発振素子、４・・・電圧制御圧電発振器、５
・・・ソケット、６・・・プリント基板、７・・・容器
、８・・・ふた、９・・容器（断熱材）、１０・・・ふ
た（断熱材）、２１・・・アナログ−ディジタル変換器
、２２・・・メモリ回路、２３・・・ディジタル−アナ
ログ変換器。FIG. 1 is a side sectional view of the first embodiment of the present invention, FIG. 2 is a side sectional view of the second embodiment of the present invention, FIG. 3 is a block diagram of the temperature compensation voltage generator, and FIG. 4 1 is a side sectional view of a conventional temperature compensated piezoelectric oscillator. 1...Temperature detector, 2...Temperature compensation voltage generator, 3
...Piezoelectric oscillator, 4...Voltage controlled piezoelectric oscillator, 5
... Socket, 6... Printed circuit board, 7... Container, 8... Lid, 9... Container (insulating material), 10... Lid (insulating material), 21... Analog-digital Converter, 22...Memory circuit, 23...Digital-to-analog converter.
Claims (1)
検出器と、前記温度検出器のアナログ出力を受信しディ
ジタルコード化しこのディジタルコードの指定するアド
レスに記憶されている温度補償用ディジタルコードを読
み出しアナログ信号化した電圧値として出力する温度補
償電圧発生部と、前記温度補償電圧発生部の出力する電
圧値によって制御される外付けの圧電発振素子との組合
せで動作する電圧制御圧電発振器とを組合せて圧電発振
器とし、この圧電発振器全体を分割可能な熱伝導率の大
きい物質の容器に収納し、前記圧電発振素子をソケット
を介して接続すると共に前記温度検出器と前記圧電発振
素子とを前記熱伝導率の大きい物質の容器に接触させて
取付けることを特徴とする温度補償型圧電発振器。 ２、前記熱伝導率の大きい物質の容器の周囲を分割可能
な断熱材で覆うことを特徴とする請求項１記載の温度補
償型圧電発振器。[Claims] 1. A temperature detector that detects the ambient temperature, converts it to a voltage value, and outputs it; and an analog output of the temperature detector that receives and converts into digital code and is stored in an address specified by the digital code. A combination of a temperature compensation voltage generation section that reads a temperature compensation digital code and outputs it as an analog signal as a voltage value, and an external piezoelectric oscillation element that is controlled by the voltage value output from the temperature compensation voltage generation section. The piezoelectric oscillator is combined with an operating voltage-controlled piezoelectric oscillator, and the piezoelectric oscillator is housed in a divisible container made of a material with high thermal conductivity, and the piezoelectric oscillator is connected to the temperature sensor through a socket. and the piezoelectric oscillation element are mounted in contact with the container made of a material having high thermal conductivity. 2. The temperature-compensated piezoelectric oscillator according to claim 1, wherein the periphery of the container made of the substance having high thermal conductivity is covered with a divisible heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21389690A JPH0496506A (en) | 1990-08-13 | 1990-08-13 | Temperature compensation type piezo-oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21389690A JPH0496506A (en) | 1990-08-13 | 1990-08-13 | Temperature compensation type piezo-oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0496506A true JPH0496506A (en) | 1992-03-27 |
Family
ID=16646811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21389690A Pending JPH0496506A (en) | 1990-08-13 | 1990-08-13 | Temperature compensation type piezo-oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0496506A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021537A (en) * | 2001-07-09 | 2003-01-24 | Ngk Insulators Ltd | Physical quantity detecting device and temperature variation estimating device |
| JP2005195580A (en) * | 2004-01-07 | 2005-07-21 | Schlumberger Technology Bv | Method and system featuring frequencies of crystal resonator |
| US7649426B2 (en) | 2006-09-12 | 2010-01-19 | Cts Corporation | Apparatus and method for temperature compensation of crystal oscillators |
| WO2012112621A1 (en) * | 2011-02-14 | 2012-08-23 | Qualcomm Incorporated | Wireless chipset with a non-temperature compensated crystal reference |
-
1990
- 1990-08-13 JP JP21389690A patent/JPH0496506A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003021537A (en) * | 2001-07-09 | 2003-01-24 | Ngk Insulators Ltd | Physical quantity detecting device and temperature variation estimating device |
| JP2005195580A (en) * | 2004-01-07 | 2005-07-21 | Schlumberger Technology Bv | Method and system featuring frequencies of crystal resonator |
| US7649426B2 (en) | 2006-09-12 | 2010-01-19 | Cts Corporation | Apparatus and method for temperature compensation of crystal oscillators |
| WO2012112621A1 (en) * | 2011-02-14 | 2012-08-23 | Qualcomm Incorporated | Wireless chipset with a non-temperature compensated crystal reference |
| US20160197617A1 (en) * | 2011-02-14 | 2016-07-07 | Qualcomm Incorporated | Wireless chipset with a non-temperature compensated crystal reference |
| US10243569B2 (en) * | 2011-02-14 | 2019-03-26 | Qualcomm Incorporated | Wireless chipset with a non-temperature compensated crystal reference |
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