WO2016104312A1 - Sensor device - Google Patents

Sensor device Download PDF

Info

Publication number
WO2016104312A1
WO2016104312A1 PCT/JP2015/085318 JP2015085318W WO2016104312A1 WO 2016104312 A1 WO2016104312 A1 WO 2016104312A1 JP 2015085318 W JP2015085318 W JP 2015085318W WO 2016104312 A1 WO2016104312 A1 WO 2016104312A1
Authority
WO
WIPO (PCT)
Prior art keywords
contact plate
sensor device
casing
holding member
thermocouple
Prior art date
Application number
PCT/JP2015/085318
Other languages
French (fr)
Japanese (ja)
Inventor
廣瀬美智子
Original Assignee
株式会社テイエルブイ
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社テイエルブイ filed Critical 株式会社テイエルブイ
Priority to JP2016555378A priority Critical patent/JP6035456B1/en
Publication of WO2016104312A1 publication Critical patent/WO2016104312A1/en

Links

Images

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • G01K1/18—Special arrangements for conducting heat from the object to the sensitive element for reducing thermal inertia
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples

Definitions

  • the present application relates to a sensor device that presses against a measurement object and detects the temperature of the measurement object.
  • a sensor device that detects a temperature by pressing a thermocouple against an object to be measured.
  • This sensor device includes a cylindrical casing (protection tube), a holding member (heat insulating tube) inserted at the tip of the casing, and a thermocouple provided at the tip of the holding member.
  • the thermocouple has a contact plate and a thermocouple wire connected to the contact plate.
  • the contact plate has a plurality of attachment pieces (legs) extending rearward, and is held by fixing the attachment pieces to the holding member.
  • the thermocouple wire is wired backward and connected to the signal processing circuit.
  • a temperature-related signal is sent to the signal processing circuit via the thermocouple wire, and the temperature of the measurement object is detected.
  • the technology disclosed in the present application has been made in view of such circumstances, and its purpose is to prevent the temperature measurement accuracy from being lowered due to the interference between the contact plate mounting piece and the thermocouple wire. It is to provide a sensor device that can be used.
  • the technology disclosed in the present application includes a cylindrical casing, a holding member inserted into the tip of the casing, a contact plate provided at the tip of the holding member, and a thermocouple wire connected to the contact plate. And a sensor device that detects the temperature of the measurement object when the contact plate is in contact with the measurement object.
  • the contact plate is formed to extend rearward and has an attachment piece that is held by the holding member.
  • the holding member is formed separately extending in the axial direction of the casing, and the attachment piece hole into which the attachment piece is inserted and held, and the thermocouple wire hole into which the thermocouple wire is inserted. Is provided.
  • the attachment piece hole into which the attachment piece of the contact plate is inserted and held and the thermocouple wire hole into which the thermocouple wire is inserted are separately formed. did. That is, the attachment piece and the thermocouple wire are inserted into separate holes.
  • a thermocouple can be attached to a holding member, without making the attachment piece of a contact plate and a thermocouple wire interfere (contact). Accordingly, it is possible to prevent the temperature measurement accuracy from being lowered due to the interference between the contact plate mounting piece and the thermocouple wire.
  • FIG. 1 is a front view illustrating a schematic configuration of the sensor device according to the embodiment.
  • FIG. 2 is a cross-sectional view illustrating a schematic configuration of the sensor main body according to the embodiment.
  • FIG. 3 is an enlarged cross-sectional view illustrating a main part of the sensor main body according to the embodiment.
  • FIG. 4 is an enlarged cross-sectional view illustrating a main part of the sensor main body according to the embodiment.
  • a sensor device 1 according to the present embodiment shown in FIG. 1 is connected to a fixing device (not shown) and fixed to a measurement object (for example, a steam trap), and detects so-called vibration and temperature of the measurement object. It is a fixed type sensor.
  • the sensor device 1 is fixed to a measurement object in a state extending in the up-down direction, for example.
  • the sensor device 1 includes a sensor body 2, an antenna 3, and a connection shaft 4.
  • the connection shaft 4 is a hollow shaft, and both ends are connected to the sensor body 2 and the antenna 3 by nuts 5 and 6.
  • the antenna 3 incorporates a signal processing circuit and a transmitter, and sends signals related to vibration and temperature of the measurement object detected by the sensor body 2.
  • the sensor body 2 includes a casing 10, a vibration detection mechanism 20, a temperature detection mechanism 40, and a holding member 51.
  • the temperature detection mechanism 40 constitutes an example of a thermocouple according to the claims of the present application.
  • the casing 10 is formed in a substantially cylindrical shape, and has a large diameter part 11, a medium diameter part 12, and a small diameter part 13. On the outer peripheral surface of the large diameter portion 11, a male screw portion 11a to which the nut 5 described above is fastened is formed. On the outer peripheral surface of the small-diameter portion 13, a male screw portion 13 a that is fastened to the fixing device described above is formed.
  • the vibration detection mechanism 20 includes a detection needle 21, a holder 22, piezoelectric elements 25 and 26, electrode plates 27 and 28, a weight 29, a disc spring 31, and a cap 32, and is inserted into the casing 10. It detects (measures) the vibration of the measurement object.
  • the detection needle 21 is an elongated rod-like member, and is formed with a large diameter portion 21a, a medium diameter portion 21b, and a small diameter portion 21c in order from the rear side.
  • the detection needle 21 is arranged coaxially with the casing 10, and the tip 21 d is arranged so as to protrude from the casing 10.
  • the holder 22 includes an inner metal holder 23 and an outer resin holder 24 that accommodates and holds the metal holder 23. Both the metal holder 23 and the resin holder 24 are formed in a cylindrical shape with a bottom, and are arranged coaxially with the casing 10.
  • the metal holder 23 has a large-diameter portion 23a and a small-diameter portion 23b having different cylindrical wall diameters in order from the rear side, and an insertion hole 23d is formed in the bottom wall 23c.
  • the metal holder 23 is fixed by inserting the rear end of the detection needle 21 into the insertion hole 23d of the bottom wall 23c.
  • the large diameter portion 21a is located in the small diameter portion 23b of the metal holder 23, and the rear side of the medium diameter portion 21b is located in the insertion hole 23d of the bottom wall 23c.
  • the large-diameter portion 21a of the detection needle 21 is formed with a larger diameter than the insertion hole 23d and is in contact with the inner surface of the bottom wall 23c.
  • two piezoelectric elements 25 and 26 and two electrode plates 27 and 28 are accommodated behind the detection needle 21.
  • the first piezoelectric element 25, the first electrode plate 27, the second piezoelectric element 26, and the second electrode plate 28 are in contact with each other in order from the front side behind the large-diameter portion 21a of the detection needle 21. Is arranged in.
  • the first piezoelectric element 25 is disposed in contact with the rear end (large diameter portion 21a) of the detection needle 21.
  • a guide portion 23e that holds the outer periphery of the piezoelectric elements 25 and 26 and the electrode plates 27 and 28 is formed on the inner surface of the small diameter portion 23b of the metal holder 23.
  • the two electrode plates 27 and 28 are connected to the signal processing circuit of the antenna 3 through signal lines. That is, the signal line is routed from the sensor body 2 through the connection shaft 4 to the antenna 3.
  • the weight 29, the disc spring 31 and the cap 32 are housed and held in a metal holder 23.
  • the weight 29, the disc spring 31, and the cap 32 constitute a pressing member that presses the piezoelectric elements 25, 26 and the electrode plates 27, 28 against the rear end (large diameter portion 21a) of the detection needle 21 from the rear. ing.
  • the weight 29 is disposed behind the second electrode plate 28 in the metal holder 23 and is accommodated across the large diameter portion 23a and the small diameter portion 23b of the metal holder 23.
  • the weight 29 includes an integrally formed head portion 29 a and a shaft portion 29 b, the head portion 29 a is positioned on the large diameter portion 23 a of the metal holder 23, and the shaft portion 29 b is formed on the small diameter portion 23 b of the metal holder 23.
  • the weight 29 presses the piezoelectric elements 25, 26 and the like against the detection needle 21 by its own gravity.
  • the disc spring 31 is disposed behind the weight 29 in the large diameter portion 23 a of the metal holder 23.
  • the disc spring 31 presses the piezoelectric elements 25, 26 and the like against the detection needle 21 by urging the weight 29 forward.
  • Two caps 32 are arranged behind the disc spring 31 in the large-diameter portion 23 a of the metal holder 23.
  • the cap 32 is a disk-shaped member having a male screw formed on the outer peripheral surface, and is fixed to the metal holder 23 by screwing with the inner surface of the large diameter portion 23 a of the metal holder 23.
  • the cap 32 presses the piezoelectric elements 25, 26 and the like against the detection needle 21 via the disc spring 31 and the weight 29 by the tightening force.
  • the weight 29, the disc spring 31 and the cap 32 are in close contact with each other and press the piezoelectric elements 25, 26 and the like against the detection needle 21.
  • the piezoelectric elements 25 and 26 are pressed against the detection needle 21 with a predetermined force (initial pressing force) by the pressing members (the weight 29, the disc spring 31 and the cap 32).
  • a predetermined force initial pressing force
  • the pressing members the weight 29, the disc spring 31 and the cap 32.
  • the resin holder 24 is disposed on the front side of the metal holder 23 and accommodates the small-diameter portion 23b of the metal holder 23 and the majority of the large-diameter portion 23a.
  • the metal holder 23 is fixed by press-fitting the small diameter portion 23 b into the resin holder 24.
  • the resin holder 24 has an insertion hole 24d formed in the bottom wall 24c, and the medium diameter portion 21b of the detection needle 21 is fitted in the insertion hole 24d.
  • the sensor body 2 includes a coil spring 35 (spring) that biases the vibration detection mechanism 20 forward.
  • the vibration detection mechanism 20 is inserted into the casing 10 so as to be displaceable in the axial direction of the casing 10 (that is, the front-rear direction).
  • the coil spring 35 is accommodated in the large-diameter portion 11 of the casing 10 and is disposed on the rear side of the vibration detection mechanism 20.
  • the coil spring 35 is disposed in a state where its axis is substantially coaxial with the axis of the casing 10.
  • One end (rear side end) of the coil spring 35 is supported by the snap ring 36.
  • the snap ring 36 is fitted in a groove 11 b formed on the inner surface of the large-diameter portion 11 of the casing 10 and receives one end of the coil spring 35.
  • the other end (front end) of the coil spring 35 is in contact with the resin holder 24 (holder 22).
  • the coil spring 35 is configured to bias the vibration detection mechanism 20 forward by biasing the resin holder 24 (holder 22) forward, and to project the tip 21d of the detection needle 21 from the casing 10. Yes.
  • the resin holder 24 has a thick spring receiving portion 24b formed at the end (rear end) of the side wall 24a. That is, the spring receiving portion 24 b is formed to protrude outward from the cylindrical wall in the axial direction of the holder 22.
  • the outer peripheral surface of the spring receiving portion 24 b is in contact with the inner surface of the large diameter portion 11 of the casing 10.
  • the other end of the coil spring 35 is in contact with the rear surface of the spring receiving portion 24 b of the resin holder 24.
  • the coil spring 35 urges the vibration detection mechanism 20 forward by urging the resin holder 24 forward.
  • the temperature detection mechanism 40 includes a contact plate 41 (heat transfer plate) and two thermocouple wires 46 and 47, and controls the temperature of the measurement object. It is to be detected (measured).
  • the contact plate 41 is an annular plate member and has two bent pieces 43 and 44 (see FIGS. 3 and 5). In the center hole 42 of the contact plate 41, the tip 21d of the detection needle 21 protrudes.
  • the bent pieces 43 and 44 are formed by bending a part of the contact plate 41 in the circumferential direction rearward (left side in FIG. 3), and constitute an example of an attachment piece according to the claims of the present application. In other words, the bent pieces 43 and 44 of the contact plate 41 are portions that extend backward and are held by the holding member 51.
  • the two bent pieces 43 and 44 of the contact plate 41 are formed at positions facing each other with the central hole 42 in between. That is, the two bent pieces 43 and 44 are formed at positions shifted from each other by 180 °.
  • thermocouple wires 46 and 47 are connected to the rear surface of the contact plate 41 by, for example, welding (see FIG. 4), and the other end is connected to the signal processing circuit of the antenna 3 (not shown).
  • one of the two thermocouple wires 46 and 47 is an alumel wire and the other is a chromel wire.
  • the holding member 51 holds the detection needle 21 and the contact plate 41. As shown in FIGS. 3 to 6, the holding member 51 is formed in a substantially cylindrical shape and is accommodated (inserted) on the distal end side of the small diameter portion 13 of the casing 10.
  • the holding member 51 has one detection needle hole 52, two bent piece holes 53 and 54, and two thermocouple wire holes 55 each extending in the axial direction (left and right direction in FIGS. 3 and 4). , 56 are formed separately.
  • the bent piece holes 53 and 54 constitute an example of a mounting piece hole according to the claims of the present application.
  • the detection needle hole 52 is a through hole formed in the center of the holding member 51, and the small diameter portion 21c of the detection needle 21 is inserted and held therein. That is, the small diameter portion 21c of the detection needle 21 is inserted into the detection needle hole 52 so as to be slidable in the axial direction.
  • the two bent piece holes 53 and 54 and the two thermocouple wire holes 55 and 56 are through holes arranged around the detection needle hole 52 at intervals of 90 °.
  • the two bent piece holes 53 and 54 are formed at positions shifted from each other by 180 °, and the two thermocouple wire holes 55 and 56 are formed at positions shifted from each other by 180 °.
  • the holding member 51 has an annular stepped portion 57 formed in a plan view at the tip, and the contact plate 41 of the temperature detecting mechanism 40 is fitted and held in the stepped portion 57.
  • the detection needle 21 is inserted into the holding member 51 (detection needle hole 52) with the tip 21d protruding from the hole 42 of the contact plate 41.
  • the two bent pieces 43 and 44 of the contact plate 41 are inserted and held in the bent piece holes 53 and 54, respectively.
  • the two thermocouple wires 46 and 47 are inserted into the thermocouple wire holes 55 and 56, respectively. That is, the two bent pieces 43, 44 and the two thermocouple wires 46, 47 are respectively inserted into the separate holes 53, 54, 55, 56 in the holding member 51.
  • two protrusions 58 and 59 are formed on the outer peripheral surface of the holding member 51.
  • the two protrusions 58 and 59 are both formed in the circumferential direction of the holding member 51.
  • the front protrusion 58 is provided slightly closer to the front end of the holding member 51
  • the rear protrusion 59 is provided slightly closer to the rear end of the holding member 51.
  • the front protrusion 58 is in contact with the stepped portion 13 b formed on the inner surface of the small diameter portion 13 of the casing 10, thereby preventing the retaining member 51 from coming out of the casing 10.
  • a coil spring 61 that urges the holding member 51 toward the front end of the casing 10 is provided in the casing 10, and the rear protrusion 59 serves as a receiving member for the coil spring 61 in the holding member 51.
  • the piezoelectric element 25, 26 acts. Accordingly, voltage fluctuations occur in the piezoelectric elements 25 and 26, and signals relating to the voltage fluctuations are sent from the electrode plates 27 and 28 to the signal processing circuit of the antenna 3 via the signal lines to detect the vibration of the measurement object ( Measured).
  • the contact plate 41 comes into contact with the measurement object when the detection needle 21 is pushed. Then, the heat of the measurement object is transmitted to the contact plate 41, and a potential difference is generated between the two thermocouple wires 46 and 47.
  • the numerical values of the vibration and temperature of the measurement object detected as described above are wirelessly transmitted from the transmitting unit of the antenna 3 to another receiving unit (not shown).
  • the bent piece holes 53 and 54 attachment in which the bent pieces 43 and 44 (attachment pieces) of the contact plate 41 are inserted and held.
  • One hole) and thermocouple wire holes 55 and 56 into which the thermocouple wires 46 and 47 are inserted are formed separately. That is, in the sensor device 1, the bent pieces 43 and 44 and the thermocouple wires 46 and 47 are inserted into the separate holes 53, 54, 55 and 56.
  • the temperature detection mechanism 40 thermocouple
  • the number of bent pieces of the contact plate 41 may be one or three or more. In that case, the quantity of the holes for the bent pieces is also changed according to the quantity of the bent pieces. Further, the two thermocouple wires 46 and 47 may be inserted into a common thermocouple wire hole.
  • the sensor apparatus 1 which fixes to a measurement object and measures a vibration etc. was demonstrated, the sensor apparatus 1 of this application measures by pressing against a measurement object with an operator's hand. Similar effects can be obtained for the handy type.
  • the sensor device 1 of the present application may be configured to detect (measure) only the temperature of the measurement object by omitting the vibration detection mechanism 20.
  • the technology disclosed in the present application is useful for a sensor device that presses against a measurement object and detects the temperature of the measurement object.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

To provide a sensor device whereby it is possible to prevent a decrease in temperature measurement precision due to interference between a thermocouple wire and a bending piece of a contact plate. A sensor device 1 is provided with a cylindrical casing 10 and a retaining member 51 inserted in the distal end of the casing 10, and is provided with a temperature detection mechanism 40 having a contact plate 41 and thermocouple wires 46, 47 connected to the contact plate 41, the contact plate 41 being retained by the distal end of the retaining member 51, and the contact plate 41 is in contact with a measurement object, whereby the sensor device 1 detects the temperature of the measurement object. The contact plate 41 is formed so as to extend rearward, and has bending pieces 43, 44 retained by the retaining member 51. The retaining member 51 is provided with bending holes 53, 54 in which the bending pieces 43, 44 are inserted and retained and thermocouple wire holes 55, 56 in which the thermocouple wires 46, 47 are inserted, the bending holes 53, 54 and the thermocouple wire holes 55, 56 each being separately formed so as to extend in the axial direction of the casing 10.

Description

センサ装置Sensor device
　本願は、測定対象物に押し当てて測定対象物の温度を検出するセンサ装置に関するものである。 The present application relates to a sensor device that presses against a measurement object and detects the temperature of the measurement object.
　例えば特許文献１に開示されているように、熱電対を測定対象物に押し当てて温度を検出するセンサ装置が知られている。このセンサ装置は、筒状のケーシング（保護管）と、該ケーシングの先端部に挿入された保持部材（断熱管）と、該保持部材の先端に設けられた熱電対とを備えている。熱電対は、接触板と、該接触板に接続された熱電対線とを有している。接触板は、後方へ延びる複数の取り付け片（足）を有し、その取り付け片が保持部材に固定されることで保持される。熱電対線は、後方へ配線されて信号処理回路に接続されている。このセンサ装置では、接触板を測定対象物に押し当てることにより、温度に関する信号が熱電対線を介して信号処理回路に送られて測定対象物の温度が検出される。 For example, as disclosed in Patent Document 1, a sensor device that detects a temperature by pressing a thermocouple against an object to be measured is known. This sensor device includes a cylindrical casing (protection tube), a holding member (heat insulating tube) inserted at the tip of the casing, and a thermocouple provided at the tip of the holding member. The thermocouple has a contact plate and a thermocouple wire connected to the contact plate. The contact plate has a plurality of attachment pieces (legs) extending rearward, and is held by fixing the attachment pieces to the holding member. The thermocouple wire is wired backward and connected to the signal processing circuit. In this sensor device, by pressing the contact plate against the measurement object, a temperature-related signal is sent to the signal processing circuit via the thermocouple wire, and the temperature of the measurement object is detected.
特開平７－２７６２８号公報JP 7-27628 A
　ところで、上述したようなセンサ装置では、接触板の取り付け片と熱電対線とが干渉することで、温度の測定精度が低下する虞があった。 By the way, in the sensor device as described above, there is a possibility that the temperature measurement accuracy may be lowered due to interference between the contact plate mounting piece and the thermocouple wire.
　本願に開示の技術は、かかる事情に鑑みてなされたものであり、その目的は、接触板の取り付け片と熱電対線との干渉によって温度の測定精度が低下するのを未然に防止することができるセンサ装置を提供することにある。 The technology disclosed in the present application has been made in view of such circumstances, and its purpose is to prevent the temperature measurement accuracy from being lowered due to the interference between the contact plate mounting piece and the thermocouple wire. It is to provide a sensor device that can be used.
　本願に開示の技術は、筒状のケーシングと、上記ケーシングの先端に挿入される保持部材とを備えると共に、該保持部材の先端に設けられる接触板と該接触板に接続される熱電対線とを有する熱電対を備え、上記接触板が測定対象物に接することで該測定対象物の温度を検出するセンサ装置を前提としている。そして、上記接触板は、後方へ延びて形成され、上記保持部材に保持される取り付け片を有する。また、上記保持部材には、それぞれ別々に上記ケーシングの軸方向に延びて形成され、上記取り付け片が挿入されて保持される取り付け片用孔および上記熱電対線が挿入される熱電対線用孔が設けられている。 The technology disclosed in the present application includes a cylindrical casing, a holding member inserted into the tip of the casing, a contact plate provided at the tip of the holding member, and a thermocouple wire connected to the contact plate. And a sensor device that detects the temperature of the measurement object when the contact plate is in contact with the measurement object. The contact plate is formed to extend rearward and has an attachment piece that is held by the holding member. Further, the holding member is formed separately extending in the axial direction of the casing, and the attachment piece hole into which the attachment piece is inserted and held, and the thermocouple wire hole into which the thermocouple wire is inserted. Is provided.
　本願のセンサ装置によれば、保持部材において、接触板の取り付け片が挿入されて保持される取り付け片用孔と、熱電対線が挿入される熱電対線用孔とを別々に形成するようにした。つまり、取り付け片と熱電対線とが別々の孔に挿入される。これにより、接触板の取り付け片と熱電対線とを干渉（接触）させることなく、熱電対を保持部材に取り付けることができる。したがって、接触板の取り付け片と熱電対線との干渉によって温度の測定精度が低下するのを未然に防止することができる。 According to the sensor device of the present application, in the holding member, the attachment piece hole into which the attachment piece of the contact plate is inserted and held and the thermocouple wire hole into which the thermocouple wire is inserted are separately formed. did. That is, the attachment piece and the thermocouple wire are inserted into separate holes. Thereby, a thermocouple can be attached to a holding member, without making the attachment piece of a contact plate and a thermocouple wire interfere (contact). Accordingly, it is possible to prevent the temperature measurement accuracy from being lowered due to the interference between the contact plate mounting piece and the thermocouple wire.
図１は、実施形態に係るセンサ装置の概略構成を示す正面図である。FIG. 1 is a front view illustrating a schematic configuration of the sensor device according to the embodiment. 図２は、実施形態に係るセンサ本体の概略構成を示す断面図である。FIG. 2 is a cross-sectional view illustrating a schematic configuration of the sensor main body according to the embodiment. 図３は、実施形態に係るセンサ本体の要部を拡大して示す断面図である。FIG. 3 is an enlarged cross-sectional view illustrating a main part of the sensor main body according to the embodiment. 図４は、実施形態に係るセンサ本体の要部を拡大して示す断面図である。FIG. 4 is an enlarged cross-sectional view illustrating a main part of the sensor main body according to the embodiment. 図５は、実施形態に係るセンサ本体を先端側から視て示す平面図である。FIG. 5 is a plan view showing the sensor main body according to the embodiment as viewed from the distal end side. 図６は、図３におけるＡ－Ａ線の断面図である。6 is a cross-sectional view taken along line AA in FIG.
　以下、本願の実施形態について図面を参照しながら説明する。なお、以下の実施形態は、本質的に好ましい例示であって、本願に開示の技術、その適用物、あるいはその用途の範囲を制限することを意図するものではない。 Hereinafter, embodiments of the present application will be described with reference to the drawings. Note that the following embodiments are essentially preferable examples, and are not intended to limit the scope of the technology disclosed in the present application, applications thereof, or uses thereof.
　図１に示す本実施形態のセンサ装置１は、図示しない固定器具に連結して測定対象物（例えば、スチームトラップ）に固定し、該測定対象物の振動および温度の２つを検出する、いわゆる固定タイプのセンサである。センサ装置１は、例えば上下方向に延びる状態で測定対象物に固定される。 A sensor device 1 according to the present embodiment shown in FIG. 1 is connected to a fixing device (not shown) and fixed to a measurement object (for example, a steam trap), and detects so-called vibration and temperature of the measurement object. It is a fixed type sensor. The sensor device 1 is fixed to a measurement object in a state extending in the up-down direction, for example.
　センサ装置１は、センサ本体２と、アンテナ３と、接続軸４とを備えている。接続軸４は、中空軸であり、両端がナット５，６によってセンサ本体２とアンテナ３に連結されている。アンテナ３は、図示しないが、信号処理回路や発信部が内蔵されており、センサ本体２によって検出された測定対象物の振動および温度に関する信号が送られる。 The sensor device 1 includes a sensor body 2, an antenna 3, and a connection shaft 4. The connection shaft 4 is a hollow shaft, and both ends are connected to the sensor body 2 and the antenna 3 by nuts 5 and 6. Although not shown, the antenna 3 incorporates a signal processing circuit and a transmitter, and sends signals related to vibration and temperature of the measurement object detected by the sensor body 2.
　図２に示すように、センサ本体２は、ケーシング１０と、振動検出機構２０と、温度検出機構４０と、保持部材５１とを備えている。温度検出機構４０は、本願の請求項に係る熱電対の一例を構成している。 As shown in FIG. 2, the sensor body 2 includes a casing 10, a vibration detection mechanism 20, a temperature detection mechanism 40, and a holding member 51. The temperature detection mechanism 40 constitutes an example of a thermocouple according to the claims of the present application.
　ケーシング１０は、略円筒状に形成され、大径部１１、中径部１２および小径部１３を有する。大径部１１の外周面には、上述したナット５が締結される雄ねじ部１１ａが形成されている。小径部１３の外周面には、上述した固定器具に締結される雄ねじ部１３ａが形成されている。 The casing 10 is formed in a substantially cylindrical shape, and has a large diameter part 11, a medium diameter part 12, and a small diameter part 13. On the outer peripheral surface of the large diameter portion 11, a male screw portion 11a to which the nut 5 described above is fastened is formed. On the outer peripheral surface of the small-diameter portion 13, a male screw portion 13 a that is fastened to the fixing device described above is formed.
　振動検出機構２０は、検出針２１と、ホルダー２２と、圧電素子２５，２６と、電極板２７，２８と、ウエイト２９と、皿バネ３１と、キャップ３２とを備え、ケーシング１０に挿入されて測定対象物の振動を検出（測定）するものである。 The vibration detection mechanism 20 includes a detection needle 21, a holder 22, piezoelectric elements 25 and 26, electrode plates 27 and 28, a weight 29, a disc spring 31, and a cap 32, and is inserted into the casing 10. It detects (measures) the vibration of the measurement object.
　検出針２１は、細長い棒状の部材であり、後方側から順に、大径部２１ａ、中径部２１ｂおよび小径部２１ｃが形成されている。検出針２１は、ケーシング１０と同軸に配置されると共に、先端２１ｄがケーシング１０から突出する状態で配置されている。 The detection needle 21 is an elongated rod-like member, and is formed with a large diameter portion 21a, a medium diameter portion 21b, and a small diameter portion 21c in order from the rear side. The detection needle 21 is arranged coaxially with the casing 10, and the tip 21 d is arranged so as to protrude from the casing 10.
　ホルダー２２は、内側の金属製ホルダー２３と、該金属製ホルダー２３を収容保持する外側の樹脂製ホルダー２４とで構成されている。金属製ホルダー２３および樹脂製ホルダー２４は、何れも、有底の円筒状に形成されており、ケーシング１０と同軸に配置されている。 The holder 22 includes an inner metal holder 23 and an outer resin holder 24 that accommodates and holds the metal holder 23. Both the metal holder 23 and the resin holder 24 are formed in a cylindrical shape with a bottom, and are arranged coaxially with the casing 10.
　金属製ホルダー２３は、筒状壁の径が異なる大径部２３ａおよび小径部２３ｂが後方側から順に形成されると共に、底壁２３ｃに挿入孔２３ｄが形成されている。金属製ホルダー２３は、底壁２３ｃの挿入孔２３ｄに検出針２１の後端が挿入されて固定されている。具体的に、検出針２１は、大径部２１ａが金属製ホルダー２３の小径部２３ｂ内に位置し、中径部２１ｂの後方側が底壁２３ｃの挿入孔２３ｄに位置している。検出針２１の大径部２１ａは、挿入孔２３ｄよりも大径に形成されており、底壁２３ｃの内面に接している。 The metal holder 23 has a large-diameter portion 23a and a small-diameter portion 23b having different cylindrical wall diameters in order from the rear side, and an insertion hole 23d is formed in the bottom wall 23c. The metal holder 23 is fixed by inserting the rear end of the detection needle 21 into the insertion hole 23d of the bottom wall 23c. Specifically, in the detection needle 21, the large diameter portion 21a is located in the small diameter portion 23b of the metal holder 23, and the rear side of the medium diameter portion 21b is located in the insertion hole 23d of the bottom wall 23c. The large-diameter portion 21a of the detection needle 21 is formed with a larger diameter than the insertion hole 23d and is in contact with the inner surface of the bottom wall 23c.
　金属製ホルダー２３の小径部２３ｂには、検出針２１の後方に、２つの圧電素子２５，２６および２つの電極板２７，２８が収容されている。具体的に、検出針２１の大径部２１ａの後方には、前方側から順に、第１圧電素子２５、第１電極板２７、第２圧電素子２６および第２電極板２８が互いに接した状態で配置されている。第１圧電素子２５は、検出針２１の後端（大径部２１ａ）に接した状態で配置されている。なお、金属製ホルダー２３の小径部２３ｂの内面には、圧電素子２５，２６および電極板２７，２８の外周を保持するガイド部２３ｅが形成されている。また、２つの電極板２７，２８は、図示しないが、それぞれ信号線によってアンテナ３の信号処理回路に接続されている。つまり、信号線はセンサ本体２から接続軸４内を通ってアンテナ３内まで配線されている。 In the small diameter portion 23 b of the metal holder 23, two piezoelectric elements 25 and 26 and two electrode plates 27 and 28 are accommodated behind the detection needle 21. Specifically, the first piezoelectric element 25, the first electrode plate 27, the second piezoelectric element 26, and the second electrode plate 28 are in contact with each other in order from the front side behind the large-diameter portion 21a of the detection needle 21. Is arranged in. The first piezoelectric element 25 is disposed in contact with the rear end (large diameter portion 21a) of the detection needle 21. A guide portion 23e that holds the outer periphery of the piezoelectric elements 25 and 26 and the electrode plates 27 and 28 is formed on the inner surface of the small diameter portion 23b of the metal holder 23. Although not shown, the two electrode plates 27 and 28 are connected to the signal processing circuit of the antenna 3 through signal lines. That is, the signal line is routed from the sensor body 2 through the connection shaft 4 to the antenna 3.
　ウエイト２９、皿バネ３１およびキャップ３２は、金属製ホルダー２３内に収容されて保持されている。本実施形態において、ウエイト２９、皿バネ３１およびキャップ３２は、圧電素子２５，２６および電極板２７，２８をその後方から検出針２１の後端（大径部２１ａ）に押し付ける押付け部材を構成している。 The weight 29, the disc spring 31 and the cap 32 are housed and held in a metal holder 23. In the present embodiment, the weight 29, the disc spring 31, and the cap 32 constitute a pressing member that presses the piezoelectric elements 25, 26 and the electrode plates 27, 28 against the rear end (large diameter portion 21a) of the detection needle 21 from the rear. ing.
　ウエイト２９は、金属製ホルダー２３において第２電極板２８の後方に配置されており、金属製ホルダー２３の大径部２３ａと小径部２３ｂとに跨って収容されている。ウエイト２９は、一体形成された頭部２９ａと軸部２９ｂとで構成され、頭部２９ａが金属製ホルダー２３の大径部２３ａに位置し、軸部２９ｂが金属製ホルダー２３の小径部２３ｂに位置して第２電極板２８に接している。ウエイト２９は、自身の重力によって圧電素子２５，２６等を検出針２１に押し付ける。皿バネ３１は、金属製ホルダー２３の大径部２３ａにおいてウエイト２９の後方に配置されている。皿バネ３１は、ウエイト２９を前方へ付勢することによって圧電素子２５，２６等を検出針２１に押し付ける。キャップ３２は、金属製ホルダー２３の大径部２３ａにおいて皿バネ３１の後方に２つ配置されている。キャップ３２は、外周面に雄ネジが形成された円板状の部材であり、金属製ホルダー２３の大径部２３ａの内面と螺合することで金属製ホルダー２３に固定される。キャップ３２は、その締め付け力によって皿バネ３１およびウエイト２９を介して圧電素子２５，２６等を検出針２１に押し付ける。このように、ウエイト２９、皿バネ３１およびキャップ３２は、互いに密接して圧電素子２５，２６等を検出針２１に押し付けている。 The weight 29 is disposed behind the second electrode plate 28 in the metal holder 23 and is accommodated across the large diameter portion 23a and the small diameter portion 23b of the metal holder 23. The weight 29 includes an integrally formed head portion 29 a and a shaft portion 29 b, the head portion 29 a is positioned on the large diameter portion 23 a of the metal holder 23, and the shaft portion 29 b is formed on the small diameter portion 23 b of the metal holder 23. Located and in contact with the second electrode plate 28. The weight 29 presses the piezoelectric elements 25, 26 and the like against the detection needle 21 by its own gravity. The disc spring 31 is disposed behind the weight 29 in the large diameter portion 23 a of the metal holder 23. The disc spring 31 presses the piezoelectric elements 25, 26 and the like against the detection needle 21 by urging the weight 29 forward. Two caps 32 are arranged behind the disc spring 31 in the large-diameter portion 23 a of the metal holder 23. The cap 32 is a disk-shaped member having a male screw formed on the outer peripheral surface, and is fixed to the metal holder 23 by screwing with the inner surface of the large diameter portion 23 a of the metal holder 23. The cap 32 presses the piezoelectric elements 25, 26 and the like against the detection needle 21 via the disc spring 31 and the weight 29 by the tightening force. Thus, the weight 29, the disc spring 31 and the cap 32 are in close contact with each other and press the piezoelectric elements 25, 26 and the like against the detection needle 21.
　こうして、圧電素子２５，２６が押付け部材（ウエイト２９、皿バネ３１およびキャップ３２）によって検出針２１に所定の力（初期押付け力）で押し付けられる。これにより、測定対象物以外の振動や力が外乱として圧電素子２５，２６に作用しても、その外乱を吸収することができ、外乱による影響を受けずにすむ。 Thus, the piezoelectric elements 25 and 26 are pressed against the detection needle 21 with a predetermined force (initial pressing force) by the pressing members (the weight 29, the disc spring 31 and the cap 32). Thus, even if vibrations or forces other than the measurement object act on the piezoelectric elements 25 and 26 as disturbances, the disturbances can be absorbed and are not affected by the disturbances.
　樹脂製ホルダー２４は、金属製ホルダー２３の前方側に配置され、金属製ホルダー２３の小径部２３ｂと大径部２３ａの過半部を収容している。本実施形態では、金属製ホルダー２３はその小径部２３ｂが樹脂製ホルダー２４に圧入されることにより固定されている。樹脂製ホルダー２４は、底壁２４ｃに挿入孔２４ｄが形成されており、その挿入孔２４ｄに検出針２１の中径部２１ｂが嵌合している。 The resin holder 24 is disposed on the front side of the metal holder 23 and accommodates the small-diameter portion 23b of the metal holder 23 and the majority of the large-diameter portion 23a. In the present embodiment, the metal holder 23 is fixed by press-fitting the small diameter portion 23 b into the resin holder 24. The resin holder 24 has an insertion hole 24d formed in the bottom wall 24c, and the medium diameter portion 21b of the detection needle 21 is fitted in the insertion hole 24d.
　センサ本体２は、振動検出機構２０を前方へ付勢するコイルバネ３５（バネ）を備えている。振動検出機構２０は、ケーシング１０の軸方向（即ち、前後方向）に変位可能にケーシング１０に挿入されている。コイルバネ３５は、ケーシング１０の大径部１１に収容され、振動検出機構２０の後方側に配置されている。コイルバネ３５は、その軸がケーシング１０の軸と略同軸となる状態で配置されている。コイルバネ３５の一端（後方側端部）は、スナップリング３６に支持されている。スナップリング３６は、ケーシング１０の大径部１１の内面に形成された溝１１ｂに嵌め込まれており、コイルバネ３５の一端を受けている。コイルバネ３５の他端（前方側端部）は、樹脂製ホルダー２４（ホルダー２２）に接している。そして、コイルバネ３５は、樹脂製ホルダー２４（ホルダー２２）を前方へ付勢することで振動検出機構２０を前方へ付勢し、検出針２１の先端２１ｄをケーシング１０から突出させるように構成されている。 The sensor body 2 includes a coil spring 35 (spring) that biases the vibration detection mechanism 20 forward. The vibration detection mechanism 20 is inserted into the casing 10 so as to be displaceable in the axial direction of the casing 10 (that is, the front-rear direction). The coil spring 35 is accommodated in the large-diameter portion 11 of the casing 10 and is disposed on the rear side of the vibration detection mechanism 20. The coil spring 35 is disposed in a state where its axis is substantially coaxial with the axis of the casing 10. One end (rear side end) of the coil spring 35 is supported by the snap ring 36. The snap ring 36 is fitted in a groove 11 b formed on the inner surface of the large-diameter portion 11 of the casing 10 and receives one end of the coil spring 35. The other end (front end) of the coil spring 35 is in contact with the resin holder 24 (holder 22). The coil spring 35 is configured to bias the vibration detection mechanism 20 forward by biasing the resin holder 24 (holder 22) forward, and to project the tip 21d of the detection needle 21 from the casing 10. Yes.
　樹脂製ホルダー２４は、側壁２４ａの端部（後方端）に厚肉のバネ受け部２４ｂが形成されている。つまり、バネ受け部２４ｂは、ホルダー２２の軸方向途中の筒状壁から外方へ突出して形成されている。なお、バネ受け部２４ｂの外周面はケーシング１０の大径部１１の内面に接している。コイルバネ３５の他端は、樹脂製ホルダー２４のバネ受け部２４ｂの後方側の面に接している。こうして、コイルバネ３５は樹脂製ホルダー２４を前方へ付勢することにより振動検出機構２０を前方へ付勢する。 The resin holder 24 has a thick spring receiving portion 24b formed at the end (rear end) of the side wall 24a. That is, the spring receiving portion 24 b is formed to protrude outward from the cylindrical wall in the axial direction of the holder 22. The outer peripheral surface of the spring receiving portion 24 b is in contact with the inner surface of the large diameter portion 11 of the casing 10. The other end of the coil spring 35 is in contact with the rear surface of the spring receiving portion 24 b of the resin holder 24. Thus, the coil spring 35 urges the vibration detection mechanism 20 forward by urging the resin holder 24 forward.
　図３～図６にも示すように、温度検出機構４０（熱電対）は、接触板４１（伝熱板）と、２本の熱電対線４６，４７とを備え、測定対象物の温度を検出（測定）するものである。 As shown in FIGS. 3 to 6, the temperature detection mechanism 40 (thermocouple) includes a contact plate 41 (heat transfer plate) and two thermocouple wires 46 and 47, and controls the temperature of the measurement object. It is to be detected (measured).
　接触板４１は、円環状の板部材であり、２つの折り曲げ片４３，４４を有している（図３、図５参照）。接触板４１の中央の孔４２は、検出針２１の先端２１ｄが突出する。折り曲げ片４３，４４は、接触板４１の周方向における一部が後方（図３において左側）に折り曲げられて成るものであり、本願の請求項に係る取り付け片の一例を構成している。つまり、接触板４１の折り曲げ片４３，４４は、後方へ延びて形成され保持部材５１に保持される部分である。接触板４１の２つの折り曲げ片４３，４４は、中央の孔４２を間に置いて互いに対向する位置に形成されている。つまり、２つの折り曲げ片４３，４４は互いに１８０°ずれた位置に形成されている。なお、後で詳述するが、接触板４１は保持部材５１の先端に保持される。２本の熱電対線４６，４７は、一端が接触板４１の後方側の面に例えば溶接により接続され（図４参照）、他端がアンテナ３の信号処理回路に接続されている（図示省略）。２本の熱電対線４６，４７は、例えば、一方がアルメル線で、他方がクロメル線である。 The contact plate 41 is an annular plate member and has two bent pieces 43 and 44 (see FIGS. 3 and 5). In the center hole 42 of the contact plate 41, the tip 21d of the detection needle 21 protrudes. The bent pieces 43 and 44 are formed by bending a part of the contact plate 41 in the circumferential direction rearward (left side in FIG. 3), and constitute an example of an attachment piece according to the claims of the present application. In other words, the bent pieces 43 and 44 of the contact plate 41 are portions that extend backward and are held by the holding member 51. The two bent pieces 43 and 44 of the contact plate 41 are formed at positions facing each other with the central hole 42 in between. That is, the two bent pieces 43 and 44 are formed at positions shifted from each other by 180 °. As will be described in detail later, the contact plate 41 is held at the tip of the holding member 51. One end of each of the two thermocouple wires 46 and 47 is connected to the rear surface of the contact plate 41 by, for example, welding (see FIG. 4), and the other end is connected to the signal processing circuit of the antenna 3 (not shown). ). For example, one of the two thermocouple wires 46 and 47 is an alumel wire and the other is a chromel wire.
　保持部材５１は、検出針２１と接触板４１を保持するものである。図３～図６にも示すように、保持部材５１は、略円筒状に形成され、ケーシング１０の小径部１３の先端側に収容（挿入）されている。保持部材５１には、それぞれ軸方向（図３および図４において左右方向）に延びる、１つの検出針用孔５２と、２つの折り曲げ片用孔５３，５４と、２つの熱電対線用孔５５，５６とが別々に形成されている。なお、折り曲げ片用孔５３，５４は、本願の請求項に係る取り付け片用孔の一例を構成している。 The holding member 51 holds the detection needle 21 and the contact plate 41. As shown in FIGS. 3 to 6, the holding member 51 is formed in a substantially cylindrical shape and is accommodated (inserted) on the distal end side of the small diameter portion 13 of the casing 10. The holding member 51 has one detection needle hole 52, two bent piece holes 53 and 54, and two thermocouple wire holes 55 each extending in the axial direction (left and right direction in FIGS. 3 and 4). , 56 are formed separately. The bent piece holes 53 and 54 constitute an example of a mounting piece hole according to the claims of the present application.
　検出針用孔５２は、保持部材５１の中央に形成された貫通孔であり、検出針２１の小径部２１ｃが挿入されて保持されている。つまり、検出針２１の小径部２１ｃは検出針用孔５２にその軸方向に摺動可能に挿入されている。２つの折り曲げ片用孔５３，５４および２つの熱電対線用孔５５，５６は、検出針用孔５２の周囲に互いに９０°間隔で配列された貫通孔である。２つの折り曲げ片用孔５３，５４は互いに１８０°ずれた位置に形成され、２つの熱電対線用孔５５，５６は互いに１８０°ずれた位置に形成されている。 The detection needle hole 52 is a through hole formed in the center of the holding member 51, and the small diameter portion 21c of the detection needle 21 is inserted and held therein. That is, the small diameter portion 21c of the detection needle 21 is inserted into the detection needle hole 52 so as to be slidable in the axial direction. The two bent piece holes 53 and 54 and the two thermocouple wire holes 55 and 56 are through holes arranged around the detection needle hole 52 at intervals of 90 °. The two bent piece holes 53 and 54 are formed at positions shifted from each other by 180 °, and the two thermocouple wire holes 55 and 56 are formed at positions shifted from each other by 180 °.
　保持部材５１は、先端に平面視環状の段差部５７が形成されており、この段差部５７に温度検出機構４０の接触板４１が嵌め込まれて保持されている。検出針２１は、先端２１ｄが接触板４１の孔４２から突出する状態で保持部材５１（検出針用孔５２）に挿入されている。接触板４１の２つの折り曲げ片４３，４４は、それぞれ折り曲げ片用孔５３，５４に挿入されて保持されている。２本の熱電対線４６，４７は、それぞれ熱電対線用孔５５，５６に挿入されている。つまり、２つの折り曲げ片４３，４４および２つの熱電対線４６，４７は各々が保持部材５１において別々の孔５３，５４，５５，５６に挿入されている。 The holding member 51 has an annular stepped portion 57 formed in a plan view at the tip, and the contact plate 41 of the temperature detecting mechanism 40 is fitted and held in the stepped portion 57. The detection needle 21 is inserted into the holding member 51 (detection needle hole 52) with the tip 21d protruding from the hole 42 of the contact plate 41. The two bent pieces 43 and 44 of the contact plate 41 are inserted and held in the bent piece holes 53 and 54, respectively. The two thermocouple wires 46 and 47 are inserted into the thermocouple wire holes 55 and 56, respectively. That is, the two bent pieces 43, 44 and the two thermocouple wires 46, 47 are respectively inserted into the separate holes 53, 54, 55, 56 in the holding member 51.
　また、図３および図４に示すように、保持部材５１の外周面には２つの突起５８，５９が形成されている。２つの突起５８，５９は、何れも保持部材５１の周方向に亘って形成されている。具体的に、前側突起５８は保持部材５１のやや先端寄りに設けられ、後側突起５９は保持部材５１のやや後端寄りに設けられている。保持部材５１は、前側突起５８が、ケーシング１０の小径部１３の内面に形成された段差部１３ｂに接しており、これにより、ケーシング１０からの抜け出しが防止される。なお、ケーシング１０内には保持部材５１をケーシング１０の先端側へ付勢するコイルバネ６１が設けられており、保持部材５１では後側突起５９がコイルバネ６１の受け部材になっている。 Further, as shown in FIGS. 3 and 4, two protrusions 58 and 59 are formed on the outer peripheral surface of the holding member 51. The two protrusions 58 and 59 are both formed in the circumferential direction of the holding member 51. Specifically, the front protrusion 58 is provided slightly closer to the front end of the holding member 51, and the rear protrusion 59 is provided slightly closer to the rear end of the holding member 51. In the holding member 51, the front protrusion 58 is in contact with the stepped portion 13 b formed on the inner surface of the small diameter portion 13 of the casing 10, thereby preventing the retaining member 51 from coming out of the casing 10. A coil spring 61 that urges the holding member 51 toward the front end of the casing 10 is provided in the casing 10, and the rear protrusion 59 serves as a receiving member for the coil spring 61 in the holding member 51.
　上述したセンサ装置１では、検出針２１の先端２１ｄを測定対象物に押し当てて検出針２１を押し込むことによって、測定対象物の機械的振動が検出針２１に伝わり、圧力変動として圧電素子２５，２６に作用する。これに応じて圧電素子２５，２６に電圧変動が生じ、この電圧変動に関する信号が電極板２７，２８から信号線を介してアンテナ３の信号処理回路に送られて測定対象物の振動が検出（測定）される。また、センサ装置１では、検出針２１が押し込まれることによって接触板４１が測定対象物に接する。そうすると、測定対象物の熱が接触板４１に伝わり、２本の熱電対線４６，４７において電位差が生じる。そして、この電位差に関する信号がアンテナ３の信号処理回路に送られて測定対象物の温度が検出（測定）される。以上のようにして検出された測定対象物の振動および温度の数値は、アンテナ３の発信部から別の受信部（図示省略）へ無線送信される。 In the sensor device 1 described above, when the tip 21d of the detection needle 21 is pressed against the measurement object and the detection needle 21 is pushed in, mechanical vibration of the measurement object is transmitted to the detection needle 21, and the piezoelectric element 25, 26 acts. Accordingly, voltage fluctuations occur in the piezoelectric elements 25 and 26, and signals relating to the voltage fluctuations are sent from the electrode plates 27 and 28 to the signal processing circuit of the antenna 3 via the signal lines to detect the vibration of the measurement object ( Measured). In the sensor device 1, the contact plate 41 comes into contact with the measurement object when the detection needle 21 is pushed. Then, the heat of the measurement object is transmitted to the contact plate 41, and a potential difference is generated between the two thermocouple wires 46 and 47. And the signal regarding this electric potential difference is sent to the signal processing circuit of the antenna 3, and the temperature of a measuring object is detected (measured). The numerical values of the vibration and temperature of the measurement object detected as described above are wirelessly transmitted from the transmitting unit of the antenna 3 to another receiving unit (not shown).
　以上のように、上記実施形態のセンサ装置１によれば、保持部材５１において、接触板４１の折り曲げ片４３，４４（取り付け片）が挿入されて保持される折り曲げ片用孔５３，５４（取り付け片用孔）と、熱電対線４６，４７が挿入される熱電対線用孔５５，５６とを別々に形成するようにした。つまり、センサ装置１では、折り曲げ片４３，４４と熱電対線４６，４７とを別々の孔５３，５４，５５，５６に挿入するようにした。これにより、接触板４１の折り曲げ片４３，４４と熱電対線４６，４７とを干渉（接触）させることなく、温度検出機構４０（熱電対）を保持部材５１に取り付けることができる。したがって、接触板４１の折り曲げ片４３，４４と熱電対線４６，４７との干渉によって温度の測定精度が低下するのを未然に防止することができる。 As described above, according to the sensor device 1 of the above embodiment, in the holding member 51, the bent piece holes 53 and 54 (attachment) in which the bent pieces 43 and 44 (attachment pieces) of the contact plate 41 are inserted and held. One hole) and thermocouple wire holes 55 and 56 into which the thermocouple wires 46 and 47 are inserted are formed separately. That is, in the sensor device 1, the bent pieces 43 and 44 and the thermocouple wires 46 and 47 are inserted into the separate holes 53, 54, 55 and 56. Thereby, the temperature detection mechanism 40 (thermocouple) can be attached to the holding member 51 without causing the bent pieces 43 and 44 of the contact plate 41 and the thermocouple wires 46 and 47 to interfere (contact). Therefore, it is possible to prevent the temperature measurement accuracy from being lowered due to the interference between the bent pieces 43 and 44 of the contact plate 41 and the thermocouple wires 46 and 47.
　なお、上記実施形態のセンサ装置１において、接触板４１の折り曲げ片の数量は１つまたは３つ以上であってもよい。その場合、折り曲げ片用孔の数量も折り曲げ片の数量に応じて変更される。また、２つの熱電対線４６，４７は互いに共通の熱電対線用孔に挿入するようにしてもよい。 In the sensor device 1 of the above embodiment, the number of bent pieces of the contact plate 41 may be one or three or more. In that case, the quantity of the holes for the bent pieces is also changed according to the quantity of the bent pieces. Further, the two thermocouple wires 46 and 47 may be inserted into a common thermocouple wire hole.
　また、上記実施形態では、測定対象物に固定して振動等を測定するセンサ装置１について説明したが、本願のセンサ装置１は、作業者が手で持って測定対象物に押し当てて測定するハンディタイプのものについても同様の作用効果を得ることができる。 Moreover, in the said embodiment, although the sensor apparatus 1 which fixes to a measurement object and measures a vibration etc. was demonstrated, the sensor apparatus 1 of this application measures by pressing against a measurement object with an operator's hand. Similar effects can be obtained for the handy type.
　また、本願のセンサ装置１は、振動検出機構２０を省略して、測定対象物の温度のみを検出（測定）するものであってもよい。 In addition, the sensor device 1 of the present application may be configured to detect (measure) only the temperature of the measurement object by omitting the vibration detection mechanism 20.
　本願に開示の技術は、測定対象物に押し当てて測定対象物の温度を検出するセンサ装置について有用である。 The technology disclosed in the present application is useful for a sensor device that presses against a measurement object and detects the temperature of the measurement object.
１　　　　センサ装置
１０　　　ケーシング
４０　　　温度検出機構（熱電対）
４１　　　接触板
４３,４４　　　折り曲げ片（取り付け片）
４６,４７　　　熱電対線
５１　　　保持部材
５３,５４　　　折り曲げ片用孔（取り付け片用孔）
５５,５６　　　熱電対線用孔
  1 Sensor device 10 Casing 40 Temperature detection mechanism (thermocouple)
41 Contact plate 43, 44 Bending piece (mounting piece)
46, 47 Thermocouple wire 51 Holding member 53, 54 Bending piece hole (mounting piece hole)
55,56 Thermocouple wire hole

Claims (1)

  1. 　筒状のケーシングと、上記ケーシングの先端に挿入される保持部材とを備えると共に、該保持部材の先端に保持される接触板と該接触板に接続される熱電対線とを有する熱電対を備え、上記接触板が測定対象物に接することで該測定対象物の温度を検出するセンサ装置であって、
    　上記接触板は、後方へ延びて形成され、上記保持部材に保持される取り付け片を有し、
    　上記保持部材には、それぞれ別々に上記ケーシングの軸方向に延びて形成され、上記取り付け片が挿入されて保持される取り付け片用孔および上記熱電対線が挿入される熱電対線用孔が設けられている
    ことを特徴とするセンサ装置。
          A cylindrical casing and a holding member inserted at the tip of the casing, and a thermocouple having a contact plate held at the tip of the holding member and a thermocouple wire connected to the contact plate A sensor device that detects the temperature of the measurement object by contacting the measurement object with the contact plate,
    The contact plate is formed to extend rearward and has an attachment piece held by the holding member,
    The holding member is provided with a hole for a mounting piece that is formed to extend in the axial direction of the casing separately and is held by inserting the mounting piece and a hole for a thermocouple wire into which the thermocouple wire is inserted. A sensor device.
PCT/JP2015/085318 2014-12-25 2015-12-17 Sensor device WO2016104312A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2016555378A JP6035456B1 (en) 2014-12-25 2015-12-17 Sensor device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014262418 2014-12-25
JP2014-262418 2014-12-25

Publications (1)

Publication Number Publication Date
WO2016104312A1 true WO2016104312A1 (en) 2016-06-30

Family

ID=56150333

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/085318 WO2016104312A1 (en) 2014-12-25 2015-12-17 Sensor device

Country Status (2)

Country Link
JP (1) JP6035456B1 (en)
WO (1) WO2016104312A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444990A (en) * 1982-09-08 1984-04-24 Servo Corporation Of America Heat sensing device
JPS6331347U (en) * 1986-08-13 1988-02-29
JPH0164030U (en) * 1987-10-15 1989-04-25
JPH08285701A (en) * 1995-04-10 1996-11-01 Rika Kogyo Kk Temperature sensor and temperature measuring structure
JP2008190916A (en) * 2007-02-01 2008-08-21 Anritsu Keiki Kk Contact-type thermometer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4444990A (en) * 1982-09-08 1984-04-24 Servo Corporation Of America Heat sensing device
JPS6331347U (en) * 1986-08-13 1988-02-29
JPH0164030U (en) * 1987-10-15 1989-04-25
JPH08285701A (en) * 1995-04-10 1996-11-01 Rika Kogyo Kk Temperature sensor and temperature measuring structure
JP2008190916A (en) * 2007-02-01 2008-08-21 Anritsu Keiki Kk Contact-type thermometer

Also Published As

Publication number Publication date
JP6035456B1 (en) 2016-11-30
JPWO2016104312A1 (en) 2017-04-27

Similar Documents

Publication Publication Date Title
US10234329B2 (en) Sensor device
US10989588B2 (en) Sensor device
JP6427421B2 (en) Sensor device
JP6412430B2 (en) Sensor device
JP7258232B2 (en) Ultrasonic measurement unit
JP2020503522A (en) Adapter for temperature sensor with adjustable spring
JP6035456B1 (en) Sensor device
WO2017163525A1 (en) Sensor apparatus
JP6527048B2 (en) Sensor device
JP6439085B1 (en) Sensor device
JP6325378B2 (en) Sensor device
JP6077181B2 (en) Sensor device and rotation prevention jig used therefor
JP6267522B2 (en) Sensor device
JP6194139B1 (en) Sensor device
JP2014515109A (en) Device for detecting pressure, in particular combustion chamber pressure of an internal combustion engine
JP2021183913A (en) Sensor device
JP2008281471A (en) Combustion pressure sensor
US20160102649A1 (en) Glow plug
JP2015145789A (en) sensor device
JP6433300B2 (en) Sensor device
JP7133120B1 (en) sensor device
JP5359647B2 (en) In-cylinder pressure detector
JP7205926B2 (en) Measuring device
JP2010096656A (en) Pressure sensor
WO2022201871A1 (en) Sensor device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15872881

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2016555378

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15872881

Country of ref document: EP

Kind code of ref document: A1