JPH074898A - Initial high pressure protection valve - Google Patents
Initial high pressure protection valveInfo
- Publication number
- JPH074898A JPH074898A JP14743693A JP14743693A JPH074898A JP H074898 A JPH074898 A JP H074898A JP 14743693 A JP14743693 A JP 14743693A JP 14743693 A JP14743693 A JP 14743693A JP H074898 A JPH074898 A JP H074898A
- Authority
- JP
- Japan
- Prior art keywords
- bullet
- pressure
- pressure sensor
- support member
- valve
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
- F42B10/32—Range-reducing or range-increasing arrangements; Fall-retarding means
- F42B10/38—Range-increasing arrangements
- F42B10/40—Range-increasing arrangements with combustion of a slow-burning charge, e.g. fumers, base-bleed projectiles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
- F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
- F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
- F42B12/365—Projectiles transmitting information to a remote location using optical or electronic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
(57)【要約】
【目的】 模擬弾において、発射時の初期高圧から圧力
センサを防護する。
【構成】 弾底部の圧力を測定する圧力センサ７を内装
した模擬弾において、弾底部と圧力センサ７の検出面と
の連通を断続する開閉弁を、連通方向にばね付勢して設
けると共に、この開閉弁の上記ばね付勢する移動方向側
に、開閉弁をばね１１の付勢力に抗して遮断状態に保持
する支持部材１３を介装し、この支持部材１３の介装部
分を弾底部に連通すると共に、この支持部材１３をロ
ウ、ワックス等、弾底部に作用する発射ガスにて溶融あ
るいは燃焼等にて消失する材料にて構成する。
(57) [Summary] [Purpose] Protects the pressure sensor from the initial high pressure at the time of launch in a simulated bullet. In a simulated bullet containing a pressure sensor 7 for measuring the pressure at the bottom of a bullet, an on-off valve that connects and disconnects the communication between the bottom of the bullet and the detection surface of the pressure sensor 7 is provided with a spring bias in the communication direction. A support member 13 that holds the on-off valve in a closed state against the urging force of the spring 11 is provided on the side of the on-off valve in the direction of the spring-biased movement. The support member 13 is made of a material such as wax, wax, etc., which disappears by melting or burning by the firing gas acting on the bottom of the bullet.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、りゅう弾や、長射程り
ゅう弾の飛翔中における弾底部の圧力を測定するための
模擬用に作成される模擬弾に使用する初期高圧防護弁に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an initial high pressure protection valve used for a round shell and a simulated shell made for simulation to measure the pressure at the bottom of a long range shell during flight. is there.
【０００２】[0002]
【従来の技術】長射程りゅう弾は図４に示すようになっ
ていて、弾体ａの底部にガス発生剤ｂが装填してあり、
これの飛翔中にこのガス発生剤ｂをイグナイタｃにて発
火させ、これを底面中央の穴ｄより噴射して弾底部の負
圧抵抗を低減させて通常弾よりその飛距離を長くするよ
うにしたものである。2. Description of the Related Art A long-range shell has a structure as shown in FIG. 4, in which a gas generating agent b is loaded on the bottom of an ammunition a,
The gas generating agent b is ignited by the igniter c during its flight, and it is jetted from the hole d at the center of the bottom face to reduce the negative pressure resistance at the bottom of the bullet and to make its flight distance longer than that of a normal bullet. It was done.
【０００３】このような長射程りゅう弾における弾底部
の圧力は上記したように飛距離の改良研究のためにいろ
いろ解析する必要があるが、この部分の圧力の検出は実
弾では不可能なので、模擬用として模擬弾を作り、これ
に上記燃焼室内の圧力を測定するための圧力センサを内
装し、飛翔時における圧力をこの圧力センサで測定して
その値を無線伝送するようにしている。The pressure at the bottom of such a long range round must be analyzed in various ways to improve the flight distance as described above. However, since the pressure at this portion cannot be detected by a real shot, it is simulated. For this purpose, a simulated bullet is made, and a pressure sensor for measuring the pressure in the combustion chamber is incorporated therein, and the pressure during flight is measured by this pressure sensor, and the value is wirelessly transmitted.
【０００４】[0004]
【発明が解決しようとする課題】従来の上記長射程りゅ
う弾用の模擬弾における圧力センサは弾体の底部に露出
する構成となっていた。ところが、弾丸を発射する際の
砲内の圧力は３０００〜４０００ｋｇ・ｆ／ｃｍ2 の
高圧であるのに対して、実際に測定したい飛翔時の燃焼
室内の圧力は負圧で、かつ分解能は０．０１ｋｇ・ｆ／
ｃｍ2 前後であり、その差は極めて大きい。このため
計測したい圧力、例えば上記のように低い圧力の分解能
にあわせた圧力センサでは発射時の高圧（初期高圧）に
て破損してしまう。また砲内圧に耐える圧力センサでは
必要な分解能が得られない。このように従来の技術では
飛翔中の弾底部の圧力を精度よく測定することは不可能
であった。The pressure sensor in the above-described conventional simulated bullet for long-range round ammunition is configured to be exposed at the bottom of the bullet. However, the pressure inside the gun when firing a bullet is a high pressure of 3000 to 4000 kgf / cm 2 , whereas the pressure inside the combustion chamber at the time of flight that is actually measured is negative and the resolution is 0. 0.01 kgf /
It is around cm 2 , and the difference is extremely large. For this reason, a pressure sensor that matches the resolution of the pressure to be measured, for example, the low pressure as described above, will be damaged by the high pressure (initial high pressure) at the time of firing. Also, a pressure sensor that can withstand the internal pressure of the gun cannot provide the necessary resolution. As described above, it has been impossible to accurately measure the pressure at the bottom of the bullet during flight with the conventional technique.
【０００５】本発明は上記のことにかんが見なされたも
ので、模擬弾において、発射時の初期高圧から圧力セン
サが防護され、圧力センサが飛翔中のみにおける弾底部
の圧力を正確に計測できるようにした初期高圧防護弁を
提供することを目的とするものである。The present invention has been made in view of the above, and in a simulated bullet, the pressure sensor is protected from the initial high pressure at the time of firing, and the pressure at the bottom of the bullet can be accurately measured only while the pressure sensor is flying. The purpose of the invention is to provide an initial high pressure protection valve.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る初期高圧防護弁は、弾底部の圧力を測
定するための圧力センサ７を内装すると共に、この圧力
センサ７による検出値を外部へ取り出すようにした模擬
弾において、弾底部と圧力センサ７の検出面との連通を
断続する開閉弁１０を、連通方向にばね付勢して設ける
と共に、このスライダ１０を上記ばね付勢する移動方向
側に、開閉弁１０をばね１１の付勢力に抗して遮断状態
に保持する支持部材１３を介装し、この支持部材１３の
介装部分を弾底部に連通すると共に、この支持部材１３
をロウ、ワックス等、弾底部に作用する発射ガスにて溶
融あるいは燃焼等にて消失する材料にて構成した構成と
なっている。In order to achieve the above object, the initial high-pressure protection valve according to the present invention is equipped with a pressure sensor 7 for measuring the pressure at the bottom of the bullet, and the pressure sensor 7 detects the pressure. In the simulated bullet whose value is taken out to the outside, an on-off valve 10 for connecting and disconnecting the communication between the bottom of the bullet and the detection surface of the pressure sensor 7 is provided by spring biasing in the communication direction, and the slider 10 is provided with the spring. A support member 13 for holding the on-off valve 10 in a closed state against the urging force of the spring 11 is provided on the side of the moving direction to be urged, and the interposed portion of the support member 13 is communicated with the bottom of the bullet. Support member 13
Is composed of a material such as wax, wax, etc. that disappears by melting or burning by the firing gas that acts on the bottom of the bullet.
【０００７】[0007]
【作 用】発射時の模擬弾が砲内にあるときには、発
射ガスが弾底部より支持部材１３の介装部分に作用して
支持部材１３が消失するが、このときの圧力にて開閉弁
１０は遮断状態に保たれ、上記発射ガスが圧力センサ７
の検圧面に作用することがない。一方、砲よりうち出さ
れた砲外では、弾底部の圧力は低下するので、開閉弁１
０はばね力にて連通状態となって弾底部の圧力が圧力セ
ンサ７にて検出される。このように、圧力センサ７は発
射時の初期高圧から防護される。[Operation] When a simulated shot at the time of firing is inside the gun, the shot gas acts from the bottom of the shot to the interposed portion of the support member 13 and the support member 13 disappears. Is kept in the shutoff state, and the above-mentioned emitted gas is pressure sensor 7
It does not affect the pressure sensing surface of. On the other hand, outside the gun out of the gun, the pressure at the bottom of the bullet drops, so
0 is in a communication state due to the spring force, and the pressure at the bottom of the bullet is detected by the pressure sensor 7. In this way, the pressure sensor 7 is protected from the initial high pressure at the time of firing.
【０００８】[0008]
【実 施 例】本発明の実施例を図１から図３に基づい
て説明する。図中１は先端部に信号発信部２を固着した
長射程りゅう弾用の模擬弾の弾体であり、この弾体１は
底部を開放した中空状になっており、この底部に底部材
３が螺合して燃焼室４が構成されている。底部材３には
ガス噴射孔５が設けてある。EXAMPLES Examples of the present invention will be described with reference to FIGS. 1 to 3. In the figure, reference numeral 1 denotes a projectile for a long-range round projectile having a signal transmitting portion 2 fixed to the tip thereof. This bullet 1 has a hollow shape with an open bottom, and a bottom member 3 is attached to this bottom. Are screwed together to form the combustion chamber 4. The bottom member 3 is provided with a gas injection hole 5.
【０００９】上記弾体１の底部の開放部に保持筒６が螺
合により固着してあり、この保持筒６内に先端部に圧力
センサ７を固着したスライダ保持部材８が同様に螺合に
より固着してある。スライダ保持部材８にはこれの底部
を開放したスライダ室９が設けてあり、このスライダ室
９にスライダ１０がばね１１により底部側へ付勢されて
摺動可能に嵌合してある。そしてスライダ保持部８の底
部に上記スライダ室９の開放部を閉じるようにしてアダ
プタ１２が螺合固着してあり、このアダプタ１２と上記
スライダ１０との間に支持部材１３が介装してあり、こ
の支持部材１３にてスライダ１０がばね１１に抗して先
端側に位置されている。A holding cylinder 6 is fixed to the open portion of the bottom of the bullet 1 by screwing, and a slider holding member 8 having a pressure sensor 7 fixed to the tip of the holding cylinder 6 is also screwed. It's stuck. The slider holding member 8 is provided with a slider chamber 9 whose bottom is opened, and a slider 10 is slidably fitted in the slider chamber 9 by a spring 11 biased toward the bottom. An adapter 12 is screwed and fixed to the bottom of the slider holder 8 so as to close the opening of the slider chamber 9, and a support member 13 is interposed between the adapter 12 and the slider 10. The slider 10 is positioned on the tip side of the support member 13 against the spring 11.
【００１０】上記スライダ室９の底部と軸方向中間部は
通路１４ａ，１４ｂを介して燃焼室４に連通している
が、この場合、スライダ室９の支持部材１３が内装され
た底部には常時連通しているが、中間部で通常状態では
スライダ１０にて閉じられており、支持部材１３がなく
なってスライダ１０が支持部材１３の高さ分だけばね１
１により底部側へ移動したときにスライダ室９の先端側
に連通するようになっている。そしてこのスライダ室９
の先端部が上記圧力センサ７の検出面に連通しており、
また圧力センサ７は上記信号発信部２にリード線１５に
て接続してある。上記アダプタ１２にはイグナイタ１６
が螺装してある。The bottom portion of the slider chamber 9 and the axially intermediate portion communicate with the combustion chamber 4 via passages 14a and 14b. In this case, the bottom portion of the slider chamber 9 in which the support member 13 is installed is always provided. Although they are in communication with each other, they are closed by the slider 10 in the normal state at the intermediate portion, and the supporting member 13 is lost, so that the slider 10 is moved by the height of the supporting member 13 and the spring 1.
When the slider chamber 9 moves to the bottom side by 1, the slider chamber 9 communicates with the tip side. And this slider chamber 9
Has its tip communicated with the detection surface of the pressure sensor 7,
The pressure sensor 7 is connected to the signal transmitting section 2 by a lead wire 15. The above adapter 12 has an igniter 16
Is screwed on.
【００１１】上記支持部材１３はロウ、ワクッスあるい
は発射薬等の材料にて構成されていて、りゅう弾砲によ
る発射時の発射ガスにて溶融あるいは燃焼して消失する
ようになっている。また上記弾体１内には充填剤１７
が、また燃焼室４内にはガス発生剤１８がそれぞれ装填
してある。The support member 13 is made of a material such as wax, wax or propellant, and is melted or burned by the gas emitted when the shell is fired to disappear. In addition, a filler 17
However, the gas generating agent 18 is charged in each of the combustion chambers 4.
【００１２】上記構成の模擬弾は通常の長射程りゅう弾
と同様にりゅう弾砲により発射される。このとき、砲内
では弾底部に高温・高圧の発射ガスが作用し、この発射
ガスは燃焼室４より通路１４ａを通ってスライダ室９の
底部側に作用し、ここに介装してある支持部材１３が溶
融あるいは燃焼して消失される。この支持部材１３が消
失するとばね１１によりスライダ１０が底部側に移動し
ようとするが、砲内では発射ガスの圧力が大きいのでス
ライダ１０は移動せず、通路１４ｂはスライダ１０にて
閉じられており、燃焼室４とスライダ室９の先端部との
連通は阻止されており、従って圧力センサ７には圧力は
作用せず、発射時の高温、高圧の発射ガス（初期高圧）
から防護される。The simulated bullet having the above structure is fired by a rifle shell as in the case of a normal long range rifle. At this time, in the gun, high temperature and high pressure propellant gas acts on the bottom of the bullet, and the propellant gas acts from the combustion chamber 4 to the bottom side of the slider chamber 9 through the passage 14a. The member 13 melts or burns and disappears. When the support member 13 disappears, the spring 10 tries to move the slider 10 to the bottom side, but since the pressure of the firing gas is large in the gun, the slider 10 does not move and the passage 14b is closed by the slider 10. The communication between the combustion chamber 4 and the tip of the slider chamber 9 is blocked, so that no pressure acts on the pressure sensor 7, and a high-temperature and high-pressure emission gas at the time of emission (initial high pressure).
Be protected from
【００１３】模擬弾が砲外へうち出されると、発射ガス
はなくなり、弾底部に作用する圧力は負圧に変る。この
とき、長射程りゅう弾の特徴として燃焼室４内のガス発
生剤１８がイグナイタ１６にて発火されて燃焼してお
り、この燃焼ガスが飛翔する模擬弾の底面より噴出して
弾底面での負圧が減少される。この状態での燃焼室４内
の圧力は上記発射ガス圧に比較して充分低いので、スラ
イダ１０は図３に示すようにばね１１により移動されて
通路１４ｂが開となり、燃焼室４内の圧力が圧力センサ
７に作用して検出され、その検出値が信号発信部２より
発信される。When the simulated bullet is ejected out of the gun, the emitted gas is exhausted and the pressure acting on the bottom of the bullet changes to negative pressure. At this time, as a characteristic of the long range round, the gas generating agent 18 in the combustion chamber 4 is ignited and burned by the igniter 16, and the combustion gas is ejected from the bottom of the flying simulated bullet to Negative pressure is reduced. Since the pressure in the combustion chamber 4 in this state is sufficiently lower than the pressure of the firing gas, the slider 10 is moved by the spring 11 to open the passage 14b as shown in FIG. Is detected by acting on the pressure sensor 7, and the detected value is transmitted from the signal transmitting unit 2.
【００１４】従って上記信号発信部２より信号を地上の
受信機にて受信して解析することにより、飛翔中の模擬
弾の燃焼室内に作用している圧力を時々刻々知ることが
できる。Therefore, by receiving the signal from the signal transmitting unit 2 by the receiver on the ground and analyzing it, the pressure acting on the combustion chamber of the flying simulated bullet can be known moment by moment.
【００１５】なお上記実施例では長射程りゅう弾として
模擬弾の例で説明したが、燃焼室を持たない通常のりゅ
う弾の場合には、飛翔中の弾底面側の圧力が圧力センサ
７にて検出される。また上記実施例では圧力センサ７に
よる検出値を無線信号にて地上に送信する例を示した
が、これはフライトレコーダに代えてもよく、あるいは
短距離なら有線も考えられる。さらに上記実施例では圧
力センサ７に対向する部分と、燃焼室４との連通を断続
する開閉弁してスライダ１０を用いた例を示したが、こ
れはポペット弁を用いてもよい。この場合もポペット弁
は開方向にばね付勢され、またこの開方向の動きは支持
部材１３にて阻止されるようになっている。In the above-mentioned embodiment, the example of a simulated round is described as a long range round, but in the case of a normal round without a combustion chamber, the pressure on the bottom side of the bullet during flight is detected by the pressure sensor 7. To be detected. Further, in the above-mentioned embodiment, an example in which the detection value of the pressure sensor 7 is transmitted to the ground by a radio signal has been shown, but this may be replaced by a flight recorder, or a wire may be considered for a short distance. Further, in the above embodiment, the slider 10 is used as the opening / closing valve that connects and disconnects the portion facing the pressure sensor 7 and the combustion chamber 4, but a poppet valve may be used instead. Also in this case, the poppet valve is spring-biased in the opening direction, and the movement in the opening direction is blocked by the support member 13.
【００１６】[0016]
【発明の効果】本発明によれば、飛翔中の弾底部の圧力
を検出する圧力センサ７を、これの発射時の初期高圧か
ら防護することができ、これにより圧力センサ７は飛翔
中のみにおける弾底部の圧力を計測することができ、こ
れにより圧力センサ７は飛翔中の弾底部に作用する極め
て低い圧力のみに設定することができ、上記飛翔中の弾
底部の圧力を正確に測定することができる。According to the present invention, the pressure sensor 7 for detecting the pressure at the bottom of the bullet during flight can be protected from the initial high pressure at the time of its launch, and thus the pressure sensor 7 can be used only during flight. It is possible to measure the pressure at the bottom of the bullet, so that the pressure sensor 7 can be set only to an extremely low pressure that acts on the bottom of the bullet during flight, and the pressure at the bottom of the bullet during flight can be measured accurately. You can
【図１】テレメータ弾の構成を示す断面図である。FIG. 1 is a cross-sectional view showing the structure of a telemeter bullet.
【図２】テレメータ弾が砲内にあるとき等の初期状態に
おける要部の拡大作用説明図である。FIG. 2 is a diagram for explaining an enlarged action of a main part in an initial state such as when a telemeter bullet is inside the gun.
【図３】テレメータ弾が砲外にあるときの要部の拡大作
用説明図である。FIG. 3 is an enlarged explanatory view of a main part when a telemeter bullet is outside the gun.
【図４】長射程りゅう弾の構成を示す断面図である。FIG. 4 is a cross-sectional view showing the structure of a long range round.
１…弾体、２…信号発信部、４…燃焼室、７…圧力セン
サ、９…スライダ室、１１…ばね、１３…支持部材、１
４ａ，１４ｂ…通路、１５…リード線、１６…イグナイ
タ、１７…充填剤、１８…ガス発生剤。DESCRIPTION OF SYMBOLS 1 ... Bullet body, 2 ... Signal transmission part, 4 ... Combustion chamber, 7 ... Pressure sensor, 9 ... Slider chamber, 11 ... Spring, 13 ... Support member, 1
4a, 14b ... Passage, 15 ... Lead wire, 16 ... Igniter, 17 ... Filler, 18 ... Gas generating agent.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 田島 祐一 大阪府枚方市津田東町２−11−５ (72)発明者 原 秀夫 東京都新宿区若宮町35 (72)発明者 塩坪 正実 神奈川県平塚市東中原１−22−25 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Yuichi Tajima Yuta Tajima 2-11-5 Tsudahigashi-cho, Hirakata-shi, Osaka (72) Hideo Hara 35 Wakamiya-cho, Shinjuku-ku, Tokyo (72) Inventor Masami Shiotsubo Hiratsuka, Kanagawa Prefecture 1-22-25 Higashi-Nakahara, Ichi
Claims (1)
サ７を内装すると共に、この圧力センサ７による検出値
を外部へ取り出すようにした模擬弾において、弾底部と
圧力センサ７の検出面との連通を断続する開閉弁１０
を、連通方向にばね付勢して設けると共に、この開閉弁
１０の上記ばね付勢による移動方向側に、開閉弁１０を
ばね１１の付勢力に抗して遮断状態に保持する支持部材
１３を介装し、この支持部材１３の介装部分を弾底部に
連通すると共に、この支持部材１３をロウ、ワックス
等、弾底部に作用する発射ガスにて溶融あるいは燃焼等
にて消失する材料にて構成したことを特徴とする初期高
圧防護弁。1. In a simulated bullet in which a pressure sensor 7 for measuring the pressure at the bottom of the bullet is installed, and the detection value of the pressure sensor 7 is taken out to the outside, the bottom of the bullet and the detection surface of the pressure sensor 7 are Open / close valve 10 for connecting and disconnecting
Is provided with a spring bias in the communication direction, and a support member 13 for holding the on-off valve 10 in a closed state against the biasing force of the spring 11 is provided on the moving direction side of the on-off valve 10 by the spring bias. The support member 13 is interposed, and the support member 13 is communicated with the bottom of the bullet, and the support member 13 is made of a material such as wax, wax, etc., which disappears by melting or burning by the propellant gas acting on the bullet bottom. An initial high pressure protection valve characterized by being constructed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14743693A JP3252021B2 (en) | 1993-06-18 | 1993-06-18 | Mock bullet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14743693A JP3252021B2 (en) | 1993-06-18 | 1993-06-18 | Mock bullet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH074898A true JPH074898A (en) | 1995-01-10 |
| JP3252021B2 JP3252021B2 (en) | 2002-01-28 |
Family
ID=15430293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14743693A Expired - Lifetime JP3252021B2 (en) | 1993-06-18 | 1993-06-18 | Mock bullet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3252021B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014231970A (en) * | 2013-05-30 | 2014-12-11 | 株式会社小松製作所 | Missile and atmospheric pressure measurement system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102607763B (en) * | 2011-12-20 | 2013-12-04 | 沈阳仪表科学研究院有限公司 | Digital shared-interface composite pressure sensor with large overload ratio |
-
1993
- 1993-06-18 JP JP14743693A patent/JP3252021B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014231970A (en) * | 2013-05-30 | 2014-12-11 | 株式会社小松製作所 | Missile and atmospheric pressure measurement system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3252021B2 (en) | 2002-01-28 |
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