JP2583117B2 - Gyro device - Google Patents
Gyro deviceInfo
- Publication number
- JP2583117B2 JP2583117B2 JP32844888A JP32844888A JP2583117B2 JP 2583117 B2 JP2583117 B2 JP 2583117B2 JP 32844888 A JP32844888 A JP 32844888A JP 32844888 A JP32844888 A JP 32844888A JP 2583117 B2 JP2583117 B2 JP 2583117B2
- Authority
- JP
- Japan
- Prior art keywords
- tuning fork
- hinge
- connecting portion
- plate
- shaped
- 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.)
- Expired - Lifetime
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は音叉を用いたジャイロ装置(角速度検出装
置)に関する。The present invention relates to a gyro device (angular velocity detecting device) using a tuning fork.
従来の音叉型ジャイロの一例を第4図に示す。 FIG. 4 shows an example of a conventional tuning fork gyro.
第4図の従来例に於ては、音叉(1)を、大なる質量
を有する振動質量部(1−1),(1−1)と、これ等
の夫々に連結した撓み部(1−2),(1−2)と、両
撓み部(1−2),(1−2)の各遊端を連結する基部
(1−3)と、この基部(1−3)より両撓み部(1−
2),(1−2)間の空隙内を両者に非接触で延びる連
結部(1−4)とより構成する。In the conventional example shown in FIG. 4, a tuning fork (1) is composed of vibrating mass portions (1-1) and (1-1) having a large mass and bending portions (1--1) connected to the respective vibrating mass portions (1-1) and (1-1). 2), (1-2), a base (1-3) connecting the free ends of the both bending portions (1-2), (1-2), and a both bending portion from the base (1-3). (1-
2) The connecting portion (1-4) extends in the gap between (1-2) in a non-contact manner therebetween.
尚、(30)はヒンジで、このヒンジ(30)は、中央の
連結部(30−2)と、これから上下に伸延する短冊状の
ヒンジ部(30−1),(30−3)と、該2個のヒンジ部
(30−1),(30−3)の遊端を一体的に連結、結合す
る基部又は円環部(30−4)とから構成される。ヒンジ
(30)は全体として一枚の板からワイヤカット等の方法
で製作することが望ましい。ヒンジ部(30−1),(30
−3)には、音叉(1)の入力軸(Z−Z)まわりに入
力する角速度Ωによる音叉(1)、従って、ヒンジ(3
0)に生ずる撓みを検出するための圧電素子(31−
1),(31−2)が夫々固定される。又、ヒンジ(30)
の連結部(30−2)は、音叉(1)の連結部(1−4)
のコ字状凹部(1−4a)に嵌合している。In addition, (30) is a hinge, and this hinge (30) is a central connecting part (30-2), and strip-shaped hinge parts (30-1) and (30-3) extending vertically from there. The two hinge portions (30-1) and (30-3) are constituted by a base portion or an annular portion (30-4) that integrally connects and couples the free ends. The hinge (30) is desirably manufactured from a single plate by wire cutting or the like. Hinge (30-1), (30
-3) has a tuning fork (1) with an angular velocity Ω input around the input axis (ZZ) of the tuning fork (1), and therefore, a hinge (3).
0) to detect the deflection generated in the piezoelectric element (31-
1) and (31-2) are fixed respectively. Also hinges (30)
The connecting portion (30-2) of the tuning fork (1) is a connecting portion (1-4) of the tuning fork (1).
(1-4a).
又、ヒンジ(30)の基部、即ち円環部(30−4)の両
開口端に、一端が閉じている略々同形状、且つ同寸法の
筒状態(41−1),(41−2)の開口部を夫々気密に固
定する。この場合、円環部(30−4)、筒状体(41−
1),(41−2)の軸は、夫々音叉軸或は入力軸(Z−
Z)に、一致するようになされている。筒状態(41−
1),(41−2)の夫々の閉端(41−1a),(41−2a)
を、円筒状の弾性部材(42−1),(42−2)を介し、
下端部が夫々取付基台(44)に固定されているL字型金
具(43−1),(43−2)の上端部に固定する。尚、上
記構成において、音叉(1)の重心が、ヒンジ(30)の
両ヒンジ部(30−1),(30−3)の中心、即ち連結部
(30−2)の中心に一致するように、音叉(1)の各部
は設計されていることは勿論である。Also, at the base portion of the hinge (30), that is, at both open ends of the annular portion (30-4), cylindrical states (41-1) and (41-2) having substantially the same shape and the same size with one end closed ) Are airtightly fixed. In this case, the annular part (30-4) and the cylindrical body (41-
The axes of 1) and (41-2) are the tuning fork axis or the input axis (Z-
Z). Tube condition (41-
1) and (41-2) closed ends (41-1a) and (41-2a), respectively
Through cylindrical elastic members (42-1) and (42-2),
The lower ends are fixed to the upper ends of L-shaped brackets (43-1) and (43-2), each of which is fixed to the mounting base (44). In the above configuration, the center of gravity of the tuning fork (1) is aligned with the center of both hinge portions (30-1) and (30-3) of the hinge (30), that is, the center of the connecting portion (30-2). The components of the tuning fork (1) are of course designed.
第5図は第4図に示した従来例の原理を説明するため
の説明図で、その主要部を第4図の軸(Z−Z)方向か
ら見たものである。同図に示す如く、このジャイロ装置
に、角速度Ωが軸(Z−Z)まわりに加わると、それに
対応したコリオリの力Fcが、両振動質量部(1−1),
(1−1)に互に平行且つ反対向に発生し、これによる
トルが、ヒンジ(30)の連結部(30−2)を介してヒン
ジ部(30−1),(30−3)に、同図に示す如く、S字
状の曲げ変形を生ぜしめる。この場合、圧電素子(31−
1),(31−2)は、その分極方向が同図で+,−で示
すように、互に逆方向になるように、夫々ヒンジ部(30
−1),(30−3)に固定されているので、両圧電素子
(31−1),(31−2)を短絡して一つの出力(45)と
し、これを、第4図に示す電圧源(5a)よりの電圧と共
にデモジュレータ(7)で同期整流することにより、入
力角速度Ωを検出し、従ってジャイロ装置を得ることが
出来る。FIG. 5 is an explanatory view for explaining the principle of the conventional example shown in FIG. 4, and shows a main part thereof viewed from an axis (ZZ) direction in FIG. As shown in the figure, when an angular velocity Ω is applied to the gyro device around the axis (Z-Z), a Coriolis force Fc corresponding to the angular velocity Ω is applied to both oscillating mass portions (1-1),
(1-1) are generated parallel to each other and opposite to each other, and the torque generated by this occurs at the hinge portions (30-1) and (30-3) via the connecting portion (30-2) of the hinge (30). As shown in the figure, an S-shaped bending deformation occurs. In this case, the piezoelectric element (31-
1) and (31-2) are respectively hinged (30) so that their polarization directions are opposite to each other as shown by + and-in FIG.
-1) and (30-3), the two piezoelectric elements (31-1) and (31-2) are short-circuited into one output (45), which is shown in FIG. By performing synchronous rectification by the demodulator (7) together with the voltage from the voltage source (5a), the input angular velocity Ω can be detected, and thus a gyro device can be obtained.
尚、図示せずも、入力軸(Z−Z)と直角な軸(Y−
Y)方向に加速度が作用した場合には、圧電素子(31−
1)と(31−2)とに誘起される電圧は互に逆符号とな
り、これ等より出力はでない。Although not shown, an axis (Y-Z) perpendicular to the input axis (Z-Z)
When acceleration acts in the Y) direction, the piezoelectric element (31-
The voltages induced in (1) and (31-2) have opposite signs, and there is no output.
又、温度による影響を避けるために、音叉(1)及び
ヒンジ(30)を熱恒弾性材で作ることが望ましい。In order to avoid the influence of temperature, it is desirable that the tuning fork (1) and the hinge (30) are made of a thermo-constant elastic material.
更に、検出感度を上げるためには、音叉(1)の共振
周波数と、音叉(1)の入力軸(Z−Z)まわりの慣性
能力と、ヒンジ部(30−1),(30−3)の入力軸(Z
−Z)まわりのトルクバネ定数及び円環部(30−4)、
筒状体(41−1),(41−2)の入力軸(Z−Z)まわ
りの慣性能力で決定される入力軸(Z−Z)まわりの自
由角共振周波数とを略々等しい値に選定することが望ま
しい。Further, in order to increase the detection sensitivity, the resonance frequency of the tuning fork (1), the inertia capacity around the input shaft (ZZ) of the tuning fork (1), the hinge portions (30-1) and (30-3) Input shaft (Z
-Z) Torque spring constant around the ring and the ring (30-4),
The free-angle resonance frequency around the input shaft (ZZ) determined by the inertial capacity around the input shaft (ZZ) of the cylindrical bodies (41-1) and (41-2) is set to a value substantially equal to the value. It is desirable to select.
しかしながら、このような従来のジャイロ装置にあっ
ては、ヒンジ(30)に2個の筒状体(41−1),(41−
2)を接合し、これらの筒状体を、それ等の端部におい
て2個の円盤状の弾性部材(42−1),(42−2)及び
2個のL字型金具(43−1),(43−2)を介して、取
付基台(44)に取付るという構造をとってういるため、
部品点数が多く、組立工数も多く、コスト高であり、か
つ装置も大型という欠点があった。However, in such a conventional gyro device, two cylindrical bodies (41-1) and (41-) are attached to the hinge (30).
2), and these cylindrical members are connected at their ends to two disk-shaped elastic members (42-1) and (42-2) and two L-shaped brackets (43-1). ), (43-2), and is mounted on the mounting base (44).
The number of parts is large, the number of assembly steps is large, the cost is high, and the apparatus is large.
本発明は、上記従来の課題に鑑みなされたもので、そ
の目的は、上記従来の課題を一掃した新規なジャイロ装
置を提供せんとするものである。The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide a novel gyro device that eliminates the above-described conventional problems.
本発明によれば、音叉(1)と、該音叉に生ずるコリ
オリの力Fcによるモーメントを検出する検出部とを有す
るジャイロ装置に於て、上記検出部はその一部に短冊状
ヒンジ(30−1)(30−3)と連結部(30−2)とを設
けた長方形であり、上記音叉の音叉軸及びその振動面
を、上記短冊状ヒンジの長手方向と板状部材の面の双方
に直交するように上記音叉を上記連結部において固定す
るようになしたジャイロ装置により従来の課題を解決す
る。According to the present invention, in a gyro device having a tuning fork (1) and a detecting unit for detecting a moment due to a Coriolis force Fc generated in the tuning fork, the detecting unit includes a strip-shaped hinge (30- 1) It is a rectangle provided with (30-3) and the connecting portion (30-2), and the tuning fork shaft of the tuning fork and the vibration surface thereof are provided in both the longitudinal direction of the strip hinge and the surface of the plate-like member. A conventional problem is solved by a gyro device in which the tuning fork is fixed at the connecting portion so as to be orthogonal.
音叉を、その重心位置において短冊状ヒンジの中央部
と連結すると共に、短冊状ヒンジの上記音叉との連結部
の上下に検出用の圧電素子を取り付けることにより、音
叉軸まわりの角速度によって音叉に生じたコリオリの力
によるモーメントを上記検出用の圧電素子の電圧として
検出する。この電圧を音叉の駆動電圧と同期整流するこ
とにより、角速度検出装置、即ちジャイロ装置となす。The tuning fork is connected to the center of the strip-shaped hinge at the center of gravity thereof, and the piezoelectric elements for detection are attached above and below the connection of the strip-shaped hinge to the tuning fork, so that the tuning fork is generated by the angular velocity around the tuning fork axis. The moment due to the Coriolis force is detected as the voltage of the detecting piezoelectric element. This voltage is synchronously rectified with the driving voltage of the tuning fork to form an angular velocity detecting device, that is, a gyro device.
第1図は本発明によるジャイロ装置の一実施例の斜視
図である。尚、同図においても、第4図と同一符号は互
に同一素子を示すものとし、それ等の詳細説明はこれを
省略する。FIG. 1 is a perspective view of one embodiment of a gyro device according to the present invention. 4, the same reference numerals as those in FIG. 4 denote the same elements, and a detailed description thereof will be omitted.
第1図の本発明の実施例に於ては、音叉(1)を、大
なる質量を有する振動質量部(1−1),(1−1)
と、これ等の夫々に連結した撓み部(1−2),(1−
2)と、両撓み部(1−2),(1−2)の各遊端を連
結する基部(1−3)と、この基部(1−3)より両撓
み部(1−2),(1−2)間の空隙内を両者に非接触
で伸びる連結部(1−4)とより構成する。In the embodiment of the present invention shown in FIG. 1, the tuning fork (1) is replaced by vibrating mass parts (1-1), (1-1) having a large mass.
And the flexures (1-2), (1-
2), a base (1-3) for connecting the free ends of both flexures (1-2) and (1-2), and both flexures (1-2), The inside of the space between (1-2) is constituted by the connecting portion (1-4) extending in a non-contact manner with both.
尚、(30)はヒンジで、このヒンジ(30)は、中央の
連結部(30−2)と、これから左右に伸延する短冊状の
ヒンジ部(30−1),(30−3)と、該2個のヒンジ部
(30−1),(30−3)の遊端を一体的に連結、結合す
る基部又は板部(30−5)とから構成される。ヒンジ
(30)は全体として一枚の板からワイヤカット等の方法
で製作することが望ましい。又、音叉(1)は板部(30
−5)からワイヤカット等の方法により作り出すことも
可能である。In addition, (30) is a hinge, and the hinge (30) includes a central connecting portion (30-2), and strip-shaped hinge portions (30-1) and (30-3) extending right and left from the connecting portion (30-2). A base or plate (30-5) for integrally connecting and connecting the free ends of the two hinges (30-1) and (30-3). The hinge (30) is desirably manufactured from a single plate by wire cutting or the like. The tuning fork (1) is a plate (30
It is also possible to create from -5) by a method such as wire cutting.
ヒンジ部(30−1)(30−3)には、音叉(1)の入
力軸(Z−Z)まわりに入力する角速度Ωによる音叉
(1)、従ってヒンジ(30)に生ずる撓みを検出するた
めの圧電素子(31−1),(31−2)が夫々固定され
る。又ヒンジ(30)の連結部(30−2)は、音叉(1)
の連結部(1−4)のコ字状凹部(1−4a)に嵌合して
いる。The hinge portions (30-1) and (30-3) detect the bending of the tuning fork (1) due to the angular velocity Ω input around the input axis (ZZ) of the tuning fork (1), and thus the bending of the hinge (30). Piezoelectric elements (31-1) and (31-2) are fixed, respectively. The connecting portion (30-2) of the hinge (30) is a tuning fork (1).
(1-4a) of the connecting portion (1-4).
この場合、ヒンジの板部(30−5)の面は音叉軸或い
は入力軸(Z−Z)と直交するようになされている。ヒ
ンジの板部(30−5)は円筒状の弾性部材(42−1),
(42−2),(42−3),(42−4)を介し、下端部を
取付基台(44)に固定されている。尚、上記構成におい
て、音叉(1)の重心が、ヒンジ(30)の両ヒンジ部
(30−1),(30−3)の中心、即ち連結部(30−2)
の中心に一致するように、音叉(2)の各部は設計され
ていることは勿論である。ジャイロ信号検出回路や音叉
駆動回路などの電気回路(46)を、同図に示す如く直接
ヒンジの板部(30−5)に取付るようにすることも可能
である。In this case, the surface of the plate (30-5) of the hinge is perpendicular to the tuning fork axis or the input axis (ZZ). The hinge plate (30-5) is a cylindrical elastic member (42-1),
The lower end is fixed to the mounting base (44) via (42-2), (42-3), and (42-4). In the above configuration, the center of gravity of the tuning fork (1) is located at the center of both hinge portions (30-1) and (30-3) of the hinge (30), that is, the connecting portion (30-2).
Of course, each part of the tuning fork (2) is designed to match the center of the fork. An electric circuit (46) such as a gyro signal detection circuit and a tuning fork drive circuit can be directly attached to the hinge plate (30-5) as shown in FIG.
第2図は第1図に示した本発明の実施例を原理を説明
するための説明図で、その主要部を第1図の軸(Z−
Z)方向から見たものである。同図に示す如く、このジ
ャイロ装置に、角速度Ωが軸(Z−Z)まわりに加わる
と、それに対応したコリオリの力Fcが、両振動質量部
(1−1),(1−1)に互に平行且つ反対向に発生
し、これによるトルクが、ヒンジ(30)の連結部(30−
2)を介してヒンジ部(30−1),(30−3)に、同図
に示す如く、S字状の曲げ変形を生ぜしめる。この場
合、圧電素子(31−1),(31−2)は、その分極方向
が同図で+,−で示したように、互に逆方向になるよう
に、夫々ヒンジ部(30−1),(30−3)に固定されて
いるので、両圧電素子(31−1),(31−2)を短絡し
て一つの出力(45)とし、これを、第1図に示す電圧源
(5a)よりの電圧と共にデモジュレータ(7)で同期整
流することにより、入力角速度Ωを検出し、従って、ジ
ャイロ装置を得ることが出来る。FIG. 2 is an explanatory view for explaining the principle of the embodiment of the present invention shown in FIG. 1, and its main part is indicated by an axis (Z-
Z) as viewed from the direction. As shown in the figure, when an angular velocity Ω is applied around the axis (ZZ) to this gyro device, a Coriolis force Fc corresponding thereto is applied to both the vibrating mass parts (1-1) and (1-1). The torque is generated in parallel with and opposite to each other, and the torque generated by the torque is applied to the joint (30−) of the hinge (30).
As shown in the figure, an S-shaped bending deformation is generated in the hinge portions (30-1) and (30-3) via 2). In this case, the piezoelectric elements (31-1) and (31-2) have their hinge portions (30-1) so that their polarization directions are opposite to each other as shown by + and-in FIG. ) And (30-3), the two piezoelectric elements (31-1) and (31-2) are short-circuited into one output (45), which is connected to a voltage source shown in FIG. By performing synchronous rectification by the demodulator (7) together with the voltage from (5a), the input angular velocity Ω can be detected, and thus a gyro device can be obtained.
尚、図示せずも、入力軸(Z−Z)と直角な軸(Y−
Y)方向に加速度が作用した場合には、圧電素子(31−
1)と(31−2)とに誘起される電圧は互に逆符号とな
り、これ等より出力はでない。Although not shown, an axis (Y-Z) perpendicular to the input axis (Z-Z)
When acceleration acts in the Y) direction, the piezoelectric element (31-
The voltages induced in (1) and (31-2) have opposite signs, and there is no output.
又、温度による音響を避けるために、音叉(1)及び
ヒンジ(30)を熱恒弾性材で作ることが望ましい。Further, it is desirable that the tuning fork (1) and the hinge (30) are made of a thermo-constant elastic material in order to avoid sound due to temperature.
更に、検出感度を上げるためには、音叉(1)の共振
周波数と、音叉(1)の入力軸(Z−Z)まわりの慣性
能率と、ヒンジ部(30−1),(30−3)の入力軸(Z
−Z)まわりのトルクバネ定数及びヒンジの板部(30−
5)の入力軸(Z−Z)まわりの慣性能率で決定される
入力軸(Z−Z)まわりの自由角共振周波数とを略々等
しい値に選定することが望ましい。Further, in order to increase the detection sensitivity, the resonance frequency of the tuning fork (1), the inertia rate around the input axis (ZZ) of the tuning fork (1), the hinge portions (30-1) and (30-3) Input shaft (Z
-Z) Torque spring constant around the plate and hinge plate (30-
It is desirable that the free-angle resonance frequency around the input shaft (ZZ) determined by the inertia factor around the input shaft (ZZ) of 5) be selected to be substantially equal.
第1図の本発明の例では、駆動用の圧電素子(4a),
(4a)を音叉(1)の(1−3)の両側及び各撓み部
(1−2),(1−2)との結合部に亘り固定し、これ
等圧電素子(4a),(4a)を、電圧源(5a)の電圧によ
り駆動すると共に、この電圧及び圧電素子(31−1),
(31−2)よりの出力電圧を、デモジュレータ(7)に
より同期整流することにより、ジャイロ装置となす。In the example of the present invention shown in FIG. 1, a driving piezoelectric element (4a),
(4a) is fixed on both sides of (1-3) of the tuning fork (1) and the connecting portions with the bending portions (1-2) and (1-2), and these piezoelectric elements (4a) and (4a) are fixed. ) Is driven by the voltage of the voltage source (5a), and this voltage and the piezoelectric elements (31-1),
The output voltage from (31-2) is synchronously rectified by the demodulator (7) to form a gyro device.
第3図は本発明の他の実施例の主要部の斜視図であ
る。この第3図の例と第1図の例の主たる相違は、第3
図の例においては、ヒンジ部(30−1),(30−3)、
連結部(30−2)及び音叉(1)がヒンジの板部(30−
5)の中央に配置されていることである。この場合、、
第3図に示す如く、音叉(1)は、その音叉軸が入力軸
(Z−Z)に一致し、連結部(30−2)の中心は、ヒン
ジ板部(30−5)の中心に一致するようになされる。ヒ
ンジの板部(30−5)は、4隅の円筒状の弾性部材(42
−1),(42−2),(42−3)及び(42−4)を介し
取付基台(44)に固定されている。その他の構成は、第
1図の例と同様であり、その動作も略々同一であるの
で、それ等の説明は省略する。FIG. 3 is a perspective view of a main part of another embodiment of the present invention. The main difference between the example of FIG. 3 and the example of FIG.
In the example of the figure, the hinge parts (30-1), (30-3),
The connecting portion (30-2) and the tuning fork (1) are hinge plate portions (30-
5) is located at the center. in this case,,
As shown in FIG. 3, the tuning fork (1) has its tuning fork axis coincident with the input axis (ZZ), and the center of the connecting portion (30-2) is located at the center of the hinge plate portion (30-5). It is made to match. The hinge plate (30-5) has cylindrical elastic members (42) at the four corners.
-1), (42-2), (42-3) and (42-4) are fixed to the mounting base (44). Other configurations are the same as those in the example of FIG. 1 and their operations are also substantially the same, so that the description thereof will be omitted.
上述した構造の本発明によれば、ヒンジ(30)を第1
図に示すように一枚の長方形状の板より構成し、その一
端にヒンジ部(30−1),(30−3)及びこの両者間に
連結部(30−2)をワイヤーカット等の方法により設け
ると共に、上記長方形状の板を取付基板(44)にゴムな
どの弾性部材(42−1)〜(42−4)を介して取付ける
ようになしたもので、これにより従来における2個の筒
状体や2個のL型金具をなくすことができ、部品点数の
減少を計ることができ、又組立工数の低減、製作コスト
の低減等の大きな効果がある。従来例におけるヒンジ
(30)と筒状体(41)との接着部がなくなることによ
り、温度変化による接着部の応力分布が変化することに
よるジャイロへの影響が皆無となり、ジャイロとしての
対温度特性が向上する。又、長方形状板のヒンジ以外の
部分から音叉(1)をワイヤカット等の方法により作り
出す事も可能であり、材料費を低減させる事ができる。
又、ジャイロ信号検出回路や音叉駆動回路などの電気回
路部(46)を直接上記ヒンジ(30)に取り付けるように
なしたため、圧電素子と回路部との結線が簡単になり、
かつ、結線部の長さが短くなるため、電気的ノイズをひ
ろいにくくなるという効果も期待できる。According to the present invention having the above-described structure, the hinge (30) is provided in the first position.
As shown in the figure, it is composed of a single rectangular plate, and hinges (30-1) and (30-3) are provided at one end thereof and a connecting portion (30-2) is provided between the two by wire cutting or the like. And the rectangular plate is mounted on the mounting substrate (44) via elastic members (42-1) to (42-4) such as rubber. The cylindrical body and the two L-shaped fittings can be eliminated, so that the number of parts can be reduced, and there are great effects such as a reduction in the number of assembly steps and a reduction in manufacturing cost. Since there is no bonding portion between the hinge (30) and the cylindrical body (41) in the conventional example, there is no influence on the gyro due to a change in the stress distribution of the bonding portion due to a temperature change, and the gyro has a temperature characteristic with respect to temperature. Is improved. Further, the tuning fork (1) can be produced from a portion other than the hinge of the rectangular plate by a method such as wire cutting, and the material cost can be reduced.
Also, since the electric circuit section (46) such as the gyro signal detection circuit and the tuning fork drive circuit is directly attached to the hinge (30), the connection between the piezoelectric element and the circuit section is simplified,
In addition, since the length of the connection portion is reduced, an effect of making it difficult to spread electrical noise can be expected.
第1図は本発明のジャイロ装置の一実施例の斜視図、第
2図はその原理説明に供する略線図、第3図は本発明の
他の実施例の要部の斜視図、第4図は従来のジャイロ装
置の一部を除いた斜視図、第5図は第4図の原理説明図
である。 図に於て、(1)は音叉、(30)はヒンジ、(30−
1),(30−3)はヒンジ、(30−2)は連結部、(30
−5)は板部、(31−1),(31−2)は検出用の圧電
素子、(4a)は駆動用の圧電素子、(5a)は電圧源、
(7)はデモジュレータ、(44)は基台、(46)は電気
回路部を夫々示す。FIG. 1 is a perspective view of one embodiment of a gyro device of the present invention, FIG. 2 is a schematic diagram for explaining the principle thereof, FIG. 3 is a perspective view of a main part of another embodiment of the present invention, FIG. FIG. 1 is a perspective view of a conventional gyro device excluding a part thereof, and FIG. 5 is a principle explanatory diagram of FIG. In the figure, (1) is a tuning fork, (30) is a hinge, (30-
1) and (30-3) are hinges, (30-2) is a connecting part, and (30-3)
-5) is a plate portion, (31-1) and (31-2) are piezoelectric elements for detection, (4a) is a piezoelectric element for driving, (5a) is a voltage source,
(7) shows a demodulator, (44) shows a base, and (46) shows an electric circuit unit.
Claims (1)
ーメントを検出する検出部とを有するジャイロ装置にお
いて、上記検出部は連結部と該連結部の両側に延在する
2つの短冊状ヒンジと該2つの短冊状ヒンジの両側の外
端を支持する2つの基部と該2つの基部を支持する板状
部とを有し、上記連結部、2つの短冊状ヒンジ、2つの
基部及び板状部は1枚の長方形の板状部材より一体的に
形成され、上記音叉の音叉軸及びその振動面が上記板状
部材の主面と上記連結部及び2つの短冊状ヒンジを通る
中心軸線の双方に直交するように上記音叉を上記連結部
において固定するように構成したことを特徴とするジャ
イロ装置。1. A gyro apparatus comprising a tuning fork and a detecting section for detecting a moment due to a Coriolis force generated in the tuning fork, the detecting section includes a connecting portion, two strip-shaped hinges extending on both sides of the connecting portion, and It has two bases that support the outer ends on both sides of the two strip hinges and a plate-shaped part that supports the two bases, and the connection part, the two strip-shaped hinges, the two bases, and the plate-shaped part are The tuning fork shaft and the vibrating surface of the tuning fork are formed integrally from one rectangular plate-shaped member, and are perpendicular to both the main surface of the plate-shaped member and the center axis passing through the connecting portion and the two rectangular hinges. A gyro device, wherein the tuning fork is fixed at the connecting portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32844888A JP2583117B2 (en) | 1988-12-26 | 1988-12-26 | Gyro device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32844888A JP2583117B2 (en) | 1988-12-26 | 1988-12-26 | Gyro device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02173517A JPH02173517A (en) | 1990-07-05 |
JP2583117B2 true JP2583117B2 (en) | 1997-02-19 |
Family
ID=18210385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP32844888A Expired - Lifetime JP2583117B2 (en) | 1988-12-26 | 1988-12-26 | Gyro device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2583117B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2534963Y2 (en) * | 1991-09-19 | 1997-05-07 | 株式会社トーキン | Piezoelectric vibration gyro |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59170717A (en) * | 1983-03-17 | 1984-09-27 | Tokyo Keiki Co Ltd | Gyro device |
JPS63168812U (en) * | 1987-04-25 | 1988-11-02 |
-
1988
- 1988-12-26 JP JP32844888A patent/JP2583117B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02173517A (en) | 1990-07-05 |
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