JPS62237332A - Ultrasonic thermometer probe - Google Patents
Ultrasonic thermometer probeInfo
- Publication number
- JPS62237332A JPS62237332A JP8154586A JP8154586A JPS62237332A JP S62237332 A JPS62237332 A JP S62237332A JP 8154586 A JP8154586 A JP 8154586A JP 8154586 A JP8154586 A JP 8154586A JP S62237332 A JPS62237332 A JP S62237332A
- Authority
- JP
- Japan
- Prior art keywords
- hollow part
- ultrasonic
- probe
- transmission
- side wall
- 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
- 239000000523 sample Substances 0.000 title claims abstract description 50
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 238000009529 body temperature measurement Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- -1 for example Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、特に高温の温度計測に適した超音波温度計用
プローブに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an ultrasonic thermometer probe particularly suitable for measuring high temperature.
（従来技術とその問題点）
従来、ボイラーあるいは炉内などの高温部の温度計測に
おいては、熱電対あるいは抵抗温度計が一般に使用され
ている。しかし、これらの温度計は、高温にさらされろ
温度感知部の材料が原理的に限定されてしまうため、酸
化その他寿命を縮める原因に対ずろ対策が施しにくく、
長期間の使用には不適当であった。(Prior Art and its Problems) Conventionally, thermocouples or resistance thermometers have been generally used to measure the temperature of high-temperature parts such as inside boilers or furnaces. However, since these thermometers are exposed to high temperatures and the material of the temperature sensing part is theoretically limited, it is difficult to take countermeasures against oxidation and other causes that shorten the lifespan.
It was unsuitable for long-term use.
これに対し、音波の伝播速度の温度依存性を利用した超
音波温度計は、超音波の伝送ラインを構成する材料が、
測定原理により制約されることがないため高温の温度計
測に有望と考えられろ。この超音波温度計は、例えば第
１２図に示すように、プローブ２１は伝送中空部３とセ
ンサー中空部４を同軸に設けるとともに、而記センサー
中空部４の断面を伝送中空部３より小さくして、センサ
ー中空部３に送端面６ａと終端面７ａを形成したもので
ある。また、プローブ２１の伝送中空部３の開口端には
、超音波発振回路１５および超音波受信回路Ｉ６を接続
した超音波の送受信部１４を嵌入させ、この送受信部１
４の超音波受信回路１６に時間差測定装置（カウンター
）１７、さらにこの装置に演算処理回路Ｉ８を介して温
度表示部１９を接続して構成しである。On the other hand, in ultrasonic thermometers that utilize the temperature dependence of the propagation speed of sound waves, the material constituting the ultrasonic transmission line is
It is considered promising for high-temperature measurement because it is not restricted by measurement principles. In this ultrasonic thermometer, for example, as shown in FIG. 12, the probe 21 has the transmission hollow part 3 and the sensor hollow part 4 coaxially arranged, and the cross section of the sensor hollow part 4 is smaller than the transmission hollow part 3. Thus, a sending end surface 6a and a terminal end surface 7a are formed in the sensor hollow part 3. Further, an ultrasonic transmitting/receiving section 14 connected to an ultrasonic oscillation circuit 15 and an ultrasonic receiving circuit I6 is fitted into the open end of the transmission hollow section 3 of the probe 21.
4, a time difference measuring device (counter) 17 is connected to the ultrasonic receiving circuit 16 of No. 4, and a temperature display section 19 is connected to this device via an arithmetic processing circuit I8.
そして、送受信部１４よりパルス状に周期的に超音波を
プローブ２１の伝送中空部３．センサー中空部４に向け
て発振して、雨中空部の端面６ａ。Then, the transmitting/receiving section 14 periodically transmits ultrasonic waves in a pulsed manner to the transmission hollow part 3 of the probe 21 . The sensor oscillates toward the hollow part 4, and the end face 6a of the rain hollow part.
７ａで反射させ、望ましくは、第１３図に示すように、
この端面６ ａ、 ７ ａからの反射波Ａ、Ｂを明瞭な
状態で送受信部【４により受信しようとしたものである
。この反射波Ａ、Ｂが受信されると、これに基いて、時
間差測定装置Ｉ７により両端面６ａ、７ａの２カ所から
の反射波の時間差△Ｌを測定し、演算処理回路Ｉ８によ
りこの時間差△ｔと両端面６ ａ、 ７ ａ間の距Ｍ（
ｌとからセンサー中空部４内の音波速度を算出するとと
乙に、この音波送度から温度を算出して温度表示部１つ
て温度表示するように構成されている。7a, preferably as shown in FIG.
An attempt is made to receive the reflected waves A and B from the end faces 6a and 7a in a clear state by the transmitting/receiving section [4]. When the reflected waves A and B are received, the time difference measuring device I7 measures the time difference △L between the reflected waves from the two end faces 6a and 7a based on this, and the arithmetic processing circuit I8 measures the time difference △ t and the distance M between both end faces 6a and 7a (
When the sonic velocity in the sensor hollow part 4 is calculated from l, the temperature is calculated from this sonic wave sending rate, and the temperature is displayed on one temperature display part.
しかし、実際にはプローブ２Ｉの中空部３．４内には第
１４図に示すような音波の複雑な反射モードが混在し、
しからプローブ２１が同一材質、例えばグラファイトで
形成されているため、中空ｉｎ＜３ 、４の側壁面８ａ
部分におけろ反射音のレベルは、端面６ ａ、 ７ ａ
部分におけろ反射音と同レベルとなる。このため、送受
信部１４で受信する音波信号は、例えば第１５図のよう
なＳ／Ｎ比の低い信号となってしまう。プローブの寸法
形状、センザ一部の長さあるいは超音波の波長によって
は、Ｓ ／ Ｎ比が１より小さくなってしまうことらあ
る。However, in reality, the hollow part 3.4 of the probe 2I contains a mixture of complex reflection modes of sound waves as shown in FIG.
Since the probe 21 is made of the same material, for example, graphite, the side wall surface 8a of the hollow in<3, 4
The level of reflected sound at the end faces 6a and 7a is
The level is the same as the reflected sound in some parts. Therefore, the sound wave signal received by the transmitting/receiving section 14 becomes a signal with a low S/N ratio as shown in FIG. 15, for example. Depending on the size and shape of the probe, the length of a portion of the sensor, or the wavelength of the ultrasonic wave, the S/N ratio may become smaller than 1.
そのため、送端面６ａと終端面７ａとで反射されてくる
音波信号を識別し、時間差△Ｌを測定することができな
いという問題がある。Therefore, there is a problem in that it is not possible to identify the sound wave signals reflected by the sending end surface 6a and the terminating end surface 7a and to measure the time difference ΔL.
（発明の目的）
本発明は、前記従来の問題点に鑑みてなされたしので、
高温において高精度の温度計測を可能にする超音波温度
計用プローブを提供しようとするものである。(Object of the invention) The present invention has been made in view of the above-mentioned conventional problems.
The present invention aims to provide an ultrasonic thermometer probe that enables highly accurate temperature measurement at high temperatures.
（発明の構成）
面記目的を達成するために、本発明は、伝送中空部とセ
ンサー中空部を同軸に形成する超音波温度計用プローブ
において、前記センサー中空部の送端面と終端面の超音
波反射率を前記伝送中空部およびセンサー中空部の側壁
面の超音波反射率より大きくなるように形成した。(Structure of the Invention) In order to achieve the above object, the present invention provides an ultrasonic thermometer probe in which a transmission hollow part and a sensor hollow part are formed coaxially. The ultrasonic wave reflectance was formed to be larger than the ultrasonic wave reflectance of the side wall surfaces of the transmission hollow part and the sensor hollow part.
（実施例） 次に、本発明の一実施例を図面にしたがって説明する。(Example) Next, one embodiment of the present invention will be described with reference to the drawings.
第１図、第２図は本発明の第１実施例に係る超音波温度
計用プローブＩＡを示す。1 and 2 show an ultrasonic thermometer probe IA according to a first embodiment of the present invention.
このプローブＩＡは、プローブ本体２の一端からプロー
ブ本体２の軸方向に形成した伝送中空部３と、この伝送
中空部３と同軸に、かつ断面を伝送中空部３の断面より
小さく形成したセンサー中空部４の双方の中空部内に、
プローブ本体２の材料よりｌ音波反射率（以下、反射率
という７）が小さい材料からなるパイプ状の部材５を嵌
挿させて形成した乙のである。そして、このように形成
することにより中空部３．４の側壁面の反射率を、セン
サー中空部４の端面６ａ、７ａの部分の反射率より小さ
くしである。This probe IA includes a transmission hollow part 3 formed in the axial direction of the probe main body 2 from one end of the probe body 2, and a sensor hollow formed coaxially with the transmission hollow part 3 and having a cross section smaller than the cross section of the transmission hollow part 3. In both hollow parts of part 4,
It is formed by inserting a pipe-shaped member 5 made of a material having a lower sound wave reflectance (hereinafter referred to as reflectance 7) than the material of the probe body 2. By forming it in this manner, the reflectance of the side wall surface of the hollow portion 3.4 is made smaller than the reflectance of the end surfaces 6a, 7a of the sensor hollow portion 4.
第３図は、このプローブＩＡを炉壁１３に取付けて、炉
内温度を測定するために、適用した超音波温度計を示し
、内面劣化を防ぐために、プローブ内にＡｒガス等の不
活性ガスが封入され、前記第１２図に示す超音波温度計
とはプローブ２１とプローブＩＡとか入れ替った点を除
き、他は実質的に同一であり、互いに対応する部分には
同一番号を付して説明を省略ずろ。Figure 3 shows an ultrasonic thermometer that is used to attach this probe IA to the furnace wall 13 and measure the temperature inside the furnace. The ultrasonic thermometer shown in FIG. 12 is substantially the same as the ultrasonic thermometer shown in FIG. Don't omit the explanation.
この装置によれば、前述のように中空部３．４内の側壁
面８ｂ部分の反射率が端面６ ａ、 ７ ａの反射率に
比較して小さいため、送受信部１４から発振された超音
波信号に対応して、端面Ｇ ａ、 ７ ａから反射され
てくる超音波信号に比べ、側壁面８ｂ部分から反射され
てくる雑・音信号は相対的に小さくなる。したがって、
送受信部１４で受信する波形は第４図に示すように、Ｓ
／Ｎ比が高いものとなり、高精度な温度計測を行うこと
ができる。特に、例えばプローブ本体２の材料をＭｏ、
Ｗとする一方、部材５としてカーボンフェルト、タング
ステンフィラメント、多孔質焼結体（例、セラミック、
Ｗ／Ｍｏ製）を用いることによ°す、プローブＩＡは高
温（２０００℃〜２４００６Ｃ）の温度計測に適したも
のとなる。According to this device, as described above, the reflectance of the side wall surface 8b portion in the hollow portion 3.4 is smaller than that of the end surfaces 6a, 7a, so that the ultrasonic waves oscillated from the transmitting/receiving section 14 are Corresponding to the signal, the noise/sound signal reflected from the side wall surface 8b portion becomes relatively small compared to the ultrasonic signal reflected from the end face G a, 7 a. therefore,
The waveform received by the transmitter/receiver 14 is S as shown in FIG.
/N ratio becomes high, and highly accurate temperature measurement can be performed. In particular, for example, the material of the probe body 2 is Mo,
W, while the member 5 may be carbon felt, tungsten filament, porous sintered body (e.g. ceramic,
By using the probe IA (made by W/Mo), the probe IA becomes suitable for high temperature measurement (2000° C. to 24006° C.).
なお、第４図は反射音の検出信号出力の時間変化を示し
、ピークＡが送端面６ａからの反射音、ピークＢが終端
面７ａからの反射音を示している。Note that FIG. 4 shows the temporal change in the reflected sound detection signal output, where peak A indicates the reflected sound from the sending end surface 6a, and peak B indicates the reflected sound from the terminating end surface 7a.
本実施例によると、プローブ本体２の材料の他にそれよ
りも反射率の低い反射防止用の部材５を選定しなければ
ならず、従来方式に比較して材料の選定が一見難しくな
るようにみえる。しかし、プローブ本体２の材料と反射
防止用の部材５との間には、熱電対の組み合せとは異な
り互いに制約条件はないので材料選定のうえで特に障害
とはならない。According to this embodiment, in addition to the material of the probe body 2, it is necessary to select an anti-reflection member 5 with a lower reflectance than the material of the probe body 2, which makes selection of the material seemingly more difficult than in the conventional method. I can see it. However, unlike the combination of thermocouples, there are no restrictions between the material of the probe body 2 and the anti-reflection member 5, so this does not pose a particular obstacle in material selection.
ところで、上記の実施例では、反射率の低い部材５を中
空部３．４内に嵌合するようなパイプとして挿入し、中
空部３．４内の側壁部８ｂ部分での反射を軽減している
が、反射率の低い部材、例えば発心性ベーグライト、デ
ンプン等の糖類を中空部３．４の内側の側壁部にコーテ
ィングし、炭化しても差支えない。また中空部３，４の
内側の側壁部にコーティング以外の何らかの表面処理を
施し反射率を低下させてもよい。By the way, in the above embodiment, the member 5 with low reflectance is inserted as a pipe that fits into the hollow part 3.4, and the reflection at the side wall part 8b inside the hollow part 3.4 is reduced. However, it is also possible to coat the inner side wall of the hollow part 3.4 with a material having a low reflectance, for example, a saccharide such as acetic bagelite or starch, and then carbonize it. Further, some surface treatment other than coating may be applied to the inner side walls of the hollow portions 3 and 4 to reduce the reflectance.
ついで、本発明の他の実施例について説明する。Next, other embodiments of the present invention will be described.
第５図、第６図は、第２実施例に係るプローブＩＢを示
し、上記同様プローブ本体２に伝送中空部３とセンサー
中空部４を形成しである。しかし、本実施例では、セン
サー中空部４の送端面６ａと終端面７ａにプローブ本体
２の材料より反射率の高い材料からなる反射板９．ＩＯ
を取付けてセンサー中空部４の送端面６ｂと終端面７ｂ
を形成しである。例えば、プローブ本体２の材料を黒鉛
、セラミックとして、反射板９．ＩＯの材料を炭化物焼
結体、高融点金属（Ｗ、Ｍｏ等）とした場合である。5 and 6 show a probe IB according to a second embodiment, in which a transmission hollow part 3 and a sensor hollow part 4 are formed in the probe main body 2 as described above. However, in this embodiment, a reflector plate 9 made of a material having a higher reflectivity than the material of the probe body 2 is provided on the sending end surface 6a and the terminal end surface 7a of the sensor hollow part 4. IO
Attach the sending end surface 6b and the terminal end surface 7b of the sensor hollow part 4.
It is formed. For example, if the probe body 2 is made of graphite or ceramic, the reflector 9. This is a case where the material of the IO is a carbide sintered body or a high melting point metal (W, Mo, etc.).
このように反射率の高い反射板９．１０を取付けること
により、中空部３．４内の側壁面８ａ部分での反射等に
起因する雑音に対し、センサー中空部４の送端面６ｂ、
終端面７ｂを形成する反射板９゜１０で反射する超音波
信号の強さの相対的レベルを上げ、Ｓ／Ｎ比を高めるよ
うにしたものである。By installing the reflector 9.10 with a high reflectance in this way, the sending end surface 6b of the sensor hollow section 4,
The S/N ratio is increased by increasing the relative level of the strength of the ultrasonic signal reflected by the reflecting plates 9 and 10 forming the termination surface 7b.
本実施例は、プローブ本体２の材料の反射率が比較的小
さい場合に、特に有効である。This embodiment is particularly effective when the reflectance of the material of the probe body 2 is relatively low.
また、本実施例は、Ｓ／Ｎ比を高めるという本来の効果
の他に加工を容易にするという面でも有利である。すな
わち−通常の穴あけ加工により形成した中空部の底部端
面は平面ではなく円錐形となる。第７図は、プローブ本
体２にこのような形状の中空部３．４を形成した状態を
示し、このままではセンサー中空部４の端面６ ａ、
７ ａから反射音を得ろことは難しい。しかし、この場
合でも、送端面６ａおよび終端面７ａに反射板９．ｌＯ
を取付けることにより、本実施例に係るプローブＩＢが
形成され、すなわちこの反射板９．１０により平面の端
面６ ｂ、 ７ ｂが形成されるので、中空部形なお、
センサー中空部４の送端面６ａおよび終端面７ａを下面
に加工しておけば、この端面に反射率の高い材料をコー
ティングするなり、あるいはその部分に何らかの表面処
理をするなりして、端面６ａ、７ａでの反射率を高める
ようにしてもよい。Further, this embodiment is advantageous in that it facilitates processing in addition to the original effect of increasing the S/N ratio. That is, the bottom end face of the hollow portion formed by ordinary drilling is not flat but conical. FIG. 7 shows a state in which a hollow portion 3.4 having such a shape is formed in the probe main body 2, and as it is, the end face 6a of the sensor hollow portion 4,
7 It is difficult to obtain reflected sound from a. However, even in this case, the reflection plate 9. lO
The probe IB according to this embodiment is formed by attaching the reflector plate 9.10, and the planar end surfaces 6b, 7b are formed by the reflecting plate 9.10.
If the lower surfaces of the sending end surface 6a and the terminal end surface 7a of the sensor hollow part 4 are processed, the end surfaces 6a, The reflectance at 7a may be increased.
第９図は、第３実施例に係るプローブＩＣを示し、プロ
ーブ本体２に形成した中空部３．４内に前述のように異
物を挿入するのではなく、中空部３．４内の側壁部８ｃ
に、凹凸を設けたものである。FIG. 9 shows a probe IC according to a third embodiment, in which the foreign object is not inserted into the hollow part 3.4 formed in the probe body 2 as described above, but the side wall inside the hollow part 3.4 is inserted into the hollow part 3.4. 8c
The surface has irregularities.
なお、この凹凸の具体的形状は種々のものがあるが、例
えば第１０図に示すように側壁面８０部分に幅の小さい
環状の溝１１を小刻みに多数設けることにより、あるい
は第１１図に示すように、小穴１２を多数設けることに
より形成できる。そして、これらのいずれの形状のらの
においても、中空部３．４の側壁部８０部分からの反射
を抑制できるので、他の実施例と同様に面記送受信部１
４にて反射音を高いＳ／Ｎ比で受信することができる。Note that there are various specific shapes of the unevenness, but for example, as shown in FIG. 10, a large number of small-width annular grooves 11 are provided in small increments on the side wall surface 80, or as shown in FIG. It can be formed by providing a large number of small holes 12 as shown in FIG. In any of these shapes, reflection from the side wall portion 80 of the hollow portion 3.4 can be suppressed.
4, the reflected sound can be received with a high S/N ratio.
−中空部４を断面円形としたが、本考案はこれに限るも
のでなく、この他例えば矩形、楕円形にしてもよい。- Although the hollow portion 4 has a circular cross section, the present invention is not limited to this, and it may also have a rectangular or elliptical shape, for example.
（発明の効果）
以上の説明より明らかなように、本発明によれば、伝送
中空部とセンサー中空部を同軸に形成する超音波温度計
用プローブにおいて、前記センサー中空部の送端面と終
端面の超音波反射率を前記伝送中空部およびセンサー中
空部の側壁面の超音波反射率より大きくなるように形成
しである。(Effects of the Invention) As is clear from the above description, according to the present invention, in an ultrasonic thermometer probe in which a transmission hollow part and a sensor hollow part are coaxially formed, a sending end face and a terminal end face of the sensor hollow part are provided. The ultrasonic reflectance of the transmission hollow part and the sensor hollow part are formed to be larger than the ultrasonic reflectance of the side wall surfaces of the sensor hollow part.
このため、プローブの中空部内の側壁面部分での超音波
の反射による雑音の影響を受けることなく、高精度の温
度計測、特に高温での温度計測が可能となり超音波温度
計の実用化に寄与し得るという効果を奏する。This makes it possible to measure temperature with high precision, especially at high temperatures, without being affected by noise caused by the reflection of ultrasonic waves on the side wall surface inside the hollow part of the probe, contributing to the practical use of ultrasonic thermometers. It has the effect of making it possible.
第１図、第２図は本発明に係るプローブの第１実施例の
断面図、一部破断分解斜視図、第３図は第１図のプロー
ブを適用した超音波温度計の機器構成図、第４図は第１
図のプローブを用いたときの超音波の受信信号の一例を
示す図、第５図、第６図は本発明の第２実施例の１断面
図、一部破断分解斜視図、第７図は棒に一般的な穴を形
成した状態を示す断面図、第８図は第７図の棒に適用し
た第２実施例の断面図、第９図は本発明の第３実施例の
端面図、第１Ｏ図、第１１図は第９図の具体例を示す一
部破断分解斜視図、第１２図は従来のプローブを適用し
た超音波温度計の機器構成図、第１３図はプローブでの
超音波の受信信号の理想的な状態を示す図、第１４図は
従来のプローブでの超音波の反射状態を示すプローブの
断面図、第１５図は第１４図に示すプローブを用いたと
きの超音波の受信信号の一例を示す図である。
ＩＡ、ＩＢ、ＩＣ・・・プローブ、２・・プローブ本体
、３・・伝送中空部、４・・・センサー中空部、５・・
・パイプ状の部材、６ ａ、 ６ ｂ・・・送端面、７
ａ、７ｂ・・・終端面、８ ａ、 ８ ｂ、 ８ ｃ−
側壁面、９．１０−・・反射板、ｌＩ−・・溝、１２・
・・小穴。1 and 2 are a sectional view and a partially broken exploded perspective view of a first embodiment of the probe according to the present invention, and FIG. 3 is an equipment configuration diagram of an ultrasonic thermometer to which the probe of FIG. 1 is applied, Figure 4 is the first
5 and 6 are cross-sectional views and a partially cutaway exploded perspective view of the second embodiment of the present invention, and FIG. 8 is a sectional view of a second embodiment applied to the rod of FIG. 7; FIG. 9 is an end view of a third embodiment of the present invention; Figures 1O and 11 are partially cutaway exploded perspective views showing the specific example of Figure 9, Figure 12 is an equipment configuration diagram of an ultrasonic thermometer using a conventional probe, and Figure 13 is an ultrasonic thermometer using a probe. Fig. 14 is a cross-sectional view of a probe showing the state of reflection of ultrasonic waves in a conventional probe, and Fig. 15 is a diagram showing an ideal state of a received signal of a sound wave. FIG. 3 is a diagram showing an example of a received signal of a sound wave. IA, IB, IC...probe, 2...probe body, 3...transmission hollow part, 4...sensor hollow part, 5...
・Pipe-shaped member, 6 a, 6 b... sending end surface, 7
a, 7b...terminal surface, 8 a, 8 b, 8 c-
Side wall surface, 9.10-...Reflector, lI-...Groove, 12-
...Small hole.
Claims (4)
音波温度計用プローブにおいて、前記センサー中空部の
送端面と終端面の超音波反射率を前記伝送中空部および
センサー中空部の側壁面の超音波反射率より大に形成し
たことを特徴とする超音波温度計用プローブ。(1) In an ultrasonic thermometer probe in which a transmission hollow part and a sensor hollow part are formed coaxially, the ultrasonic reflectance of the sending end surface and the terminal end surface of the sensor hollow part is calculated from the side wall surfaces of the transmission hollow part and the sensor hollow part. An ultrasonic thermometer probe characterized in that the ultrasonic reflectance is larger than that of the ultrasonic thermometer probe.
音波反射率が小さい材料を装着して形成したことを特徴
とする特許請求の範囲第１項に記載の超音波温度計用プ
ローブ。(2) The probe for an ultrasonic thermometer according to claim 1, wherein a material having a lower ultrasonic reflectance than the material of the probe body is attached to the side wall surface portion.
波反射率が大きい材料を装着して形成したことを特徴と
する特許請求の範囲第１項に記載の超音波温度計用プロ
ーブ。(3) The ultrasonic thermometer probe according to claim 1, wherein the end face portion is formed by attaching a material having a higher ultrasonic reflectance than the material of the probe body.
徴とする特許請求の範囲第１項に記載の超音波温度計用
プローブ。(4) The probe for an ultrasonic thermometer according to claim 1, wherein the side wall surface portion is formed with unevenness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8154586A JPS62237332A (en) | 1986-04-08 | 1986-04-08 | Ultrasonic thermometer probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8154586A JPS62237332A (en) | 1986-04-08 | 1986-04-08 | Ultrasonic thermometer probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62237332A true JPS62237332A (en) | 1987-10-17 |
Family
ID=13749260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8154586A Pending JPS62237332A (en) | 1986-04-08 | 1986-04-08 | Ultrasonic thermometer probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62237332A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01304334A (en) * | 1988-06-01 | 1989-12-07 | Babcock Hitachi Kk | Instrument for measuring temperature of high-temperature fluid |
| JP2014505912A (en) * | 2010-10-28 | 2014-03-06 | ヘレーウス エレクトロ−ナイト インターナシヨナル エヌ ヴイ | Wireless lance |
| CN107835306A (en) * | 2017-10-27 | 2018-03-23 | 努比亚技术有限公司 | A kind of temperature checking method, terminal and computer-readable recording medium |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141554A (en) * | 1980-04-08 | 1981-11-05 | Toshiba Corp | Measuring method for modulus of elasticity |
| JPS5750653A (en) * | 1980-09-12 | 1982-03-25 | Natl Res Inst For Metals | Test piece for ultrasonic flaw detection |
-
1986
- 1986-04-08 JP JP8154586A patent/JPS62237332A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56141554A (en) * | 1980-04-08 | 1981-11-05 | Toshiba Corp | Measuring method for modulus of elasticity |
| JPS5750653A (en) * | 1980-09-12 | 1982-03-25 | Natl Res Inst For Metals | Test piece for ultrasonic flaw detection |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01304334A (en) * | 1988-06-01 | 1989-12-07 | Babcock Hitachi Kk | Instrument for measuring temperature of high-temperature fluid |
| JP2014505912A (en) * | 2010-10-28 | 2014-03-06 | ヘレーウス エレクトロ−ナイト インターナシヨナル エヌ ヴイ | Wireless lance |
| CN107835306A (en) * | 2017-10-27 | 2018-03-23 | 努比亚技术有限公司 | A kind of temperature checking method, terminal and computer-readable recording medium |
| CN107835306B (en) * | 2017-10-27 | 2021-04-16 | 努比亚技术有限公司 | Temperature detection method, terminal and computer readable storage medium |
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