JP7349183B1 - Measuring device - Google Patents

Abstract

An object of the present invention is to provide a measuring device that can continue measuring even if an external force is applied to a probe case due to the influence of wind or the like without repair work by an operator. A measuring device 1 includes a probe section 10, a main body section 14, a U-shaped bolt 11, and nuts 12 and 13. The probe unit 10 includes a cylindrical probe case 100, and a vibration probe and a temperature probe housed inside the probe case 100. Each of the vibration probe and the temperature probe is disposed such that the tip thereof directly contacts the surface 500a of the steam pipe 500. In the measuring device 1, the probe case 100 of the probe unit 10 is fixed to the steam pipe 500 in a posture hanging downward in the Z direction. The main body portion 14 has a main body case 140. The main body case 140 is directly fixed to the lower part of the probe case 100 in the Z direction. [Selection diagram] Figure 1

Description

The present invention relates to a measuring device, and particularly to a measuring device that measures steam pipes, steam traps, etc. through which steam or condensate flows.

Steam traps are known that are used to discharge only condensate (drain) from piping equipment through which steam flows. In addition, the intensity of vibration and surface temperature of the steam trap and the steam piping at its entrance are measured, and the presence or absence of steam leakage is diagnosed based on the correlation between them. For such diagnosis, a measuring device is used that includes a vibration probe for measuring the intensity of vibration of a steam trap or the like, and a temperature probe for measuring the surface temperature of the steam trap or the like.

Here, there are two types of measurement devices: a portable type that is carried by a worker, and an installation type in which a vibration probe or a temperature probe is fixed to a steam trap or the like. Patent Document 1 discloses an installation type measuring device. BACKGROUND ART Measuring devices according to conventional techniques, including the measuring device disclosed in Patent Document 1, will be explained using FIG. 6. As shown in FIG. 6, a measuring device 901 according to the prior art includes a probe case 910, a clamp portion 911, a bolt 912, a main body case 913, and a connecting pipe 914.

As shown in the enlarged portion of FIG. 6, inside the probe case 910, a temperature probe 915 and a vibration probe 916 are housed so that their respective tips 915a and 916a protrude downward in the Z direction. A tip 915a of the temperature probe 915 and a tip 916a of the vibration probe 916, which protrude downward from the probe case 910, are arranged so as to come into contact with the surface of the steam pipe 950. The probe case 910 is disposed above the steam pipe 950 and is attached to the steam pipe 500 by a clamp portion 911. The clamp portion 911 fixes the probe case 910 to the steam pipe 950 by tightening the bolt 912 so as to tighten the outer periphery of the steam pipe 500.

Main body case 913 is disposed above probe case 910 with connection pipe 914 interposed therebetween. Inside the main body case 913, data regarding the temperature of the surface 950a of the steam pipe 950 detected by the temperature probe 915 and the vibration intensity of the steam pipe 950 detected by the vibration probe 916 are stored for management of repeaters and plants. It houses a circuit board for transmitting data to other rooms, a battery unit as a power source, etc.

Patent No. 6389098

However, with the measuring device 901 according to the prior art as shown in FIG. 6, there are cases where measurement data cannot be acquired due to the influence of strong winds or the like. Specifically, when a strong wind blows against the measuring device 901 as shown by arrow B in FIG. The tips 915a and 916a of the probe 915 and the vibration probe 916 may become separated. In such a case, the surface temperature of the steam pipe 950 and the intensity of vibration cannot be measured. If the probe case 910 is tilted in this way, the measuring device 901 will not be able to perform measurements until the operator returns the probe case 910 to its normal posture.

The present invention has been made to solve the above-mentioned problems, and it is possible to continue measurement even if an external force is applied to the probe case due to the influence of wind, etc., without repair work by an operator. The purpose is to provide a measuring device that is capable of

A measuring device according to one aspect of the present invention includes a vibration probe, a temperature probe, a probe case, and a fixing member. The vibration probe is a long member, one end of which is placed in contact with the surface of the object to be measured, and the other end of which has a vibration sensor that measures the intensity of vibration. The temperature probe is an elongated member, and is disposed such that one end is in contact with the surface of the object to be measured, and measures the surface temperature of the object to be measured. The probe case has a part including the one end of the vibration probe and a part including the one end of the temperature probe exposed to the outside, and the remaining part of the vibration probe including the vibration sensor. and the remainder of the temperature probe. The fixing member fixes the probe case to the measurement target. In the measuring device according to this aspect, the probe case is fixed in a downwardly hanging position with respect to the measurement target object.

In the measurement device according to the above aspect, the probe case is fixed in a downwardly hanging position with respect to the object to be measured, so that if the probe case is tilted due to the influence of wind etc., the vibration probe and temperature probe may temporarily Even if one end is separated from the object to be measured, it will return to its original hanging position due to the weight of the probe case and the vibration probe and temperature probe housed inside the probe case. Therefore, in the measuring device according to the above aspect, even if an external force is applied to the probe case due to the influence of wind or the like, it is possible to continue measurement without repair work by an operator.

In the measuring device according to the above aspect, the probe case has a cylindrical shape, and includes a bottom member that closes a lower opening of the probe case, a circuit board connected to the vibration probe and the temperature probe by a signal line, and the The battery unit may further include a battery unit that supplies power to a circuit board, and a main body case that accommodates the circuit board and the battery unit, and the main body case may be directly fixed to the bottom member.

In the measuring device according to the above aspect, since the main body case is directly fixed to the bottom member that closes the lower opening of the probe case, even if the probe case is tilted due to the influence of wind, etc., the probe case and its inner In addition to the weight of the vibration probe and temperature probe housed in the holder, the weight of the main body case, circuit board, and battery unit is added to return the device to its original hanging position.

In addition, in the measuring device according to the above aspect, since the main body case is directly fixed to the lower part of the bottom member, the vibration probe It is also possible to shorten the signal line connecting the temperature probe and the circuit board. Therefore, in the measuring device according to the above aspect, the impedance between each probe and the circuit board can be kept low, and measurement can be performed with high accuracy.

In the measuring device according to the above aspect, the bottom member has a hole in a portion to which the main body case is fixed, and the main body case is provided in a portion to be fixed to the bottom member, and the main body case has a hole in the hole in the bottom member. The signal line having a continuous hole and connecting the vibration probe and the temperature probe to the circuit board may be arranged to pass through the hole in the bottom member and the hole in the main body case. good.

In the measuring device according to the above aspect, holes that are continuous with each other are provided in each of the bottom member and the main body case, and signal lines that are inserted through the holes and connect each probe and the circuit board are arranged. Therefore, the length of the signal line can be made as short as possible, which is more suitable for highly accurate measurement.

In the measuring device according to the above aspect, each of the probe case and the main body case may be made of a metal material.

In the measurement device according to the above aspect, since the probe case and the main body case are each made of a metal material, the probe case and the main body case are Damage caused by heat can be suppressed.

In the measuring device according to the above aspect, each of the circuit board and the battery unit may be attached to an inner wall surface of the main body case via a heat insulating member.

In the measuring device according to the above aspect, each of the circuit board and the battery unit is attached to the inner wall surface of the main body case via a heat insulating member, so that the measurement device does not require the use of a highly heat-resistant circuit board or battery unit. Even if the main body case becomes hot due to the heat transferred from the measurement target, it is possible to suppress damage to the circuit board and battery unit due to heat.

In the measuring device according to each of the above aspects, even if an external force is applied to the probe case due to the influence of wind or the like, it is possible to continue measurement without repair work by an operator.

FIG. 1 is a perspective view showing the configuration of a measuring device according to an embodiment. FIG. 3 is a cross-sectional view showing the configuration of a probe section. FIG. 3 is a cross-sectional view showing the configuration of a lid portion in the probe section. FIG. 3 is a front view showing the configuration of the main body. FIG. 3 is a cross-sectional view showing the mounting structure of the circuit board and battery unit in the main body. FIG. 2 is a side view showing the configuration of a measuring device according to the prior art.

An embodiment of the present invention will be described below with reference to the drawings. Note that the form described below is an example of the present invention, and the present invention is not limited to the following form in any way except for its essential configuration.

1. Schematic Configuration of Measuring Device 1 The schematic configuration of the measuring device 1 according to one embodiment will be described using FIGS. 1 and 2. FIG.

As shown in FIG. 1, the measuring device 1 includes a probe section 10, a main body section 14, a U-shaped bolt 11, and nuts 12 and 13. Note that the U-shaped bolt 11 and the nuts 12 and 13 are fixing members for fixing the probe section 10 and the main body section 14 to the steam pipe 500 that is the object to be measured.

The probe section 10 includes a cylindrical probe case 100 and stays 101 and 102. As shown in FIG. 2, the probe section 10 also has a temperature probe 103 and a vibration probe 104 housed in its internal space 10a (inside the probe case 100). Further, the probe unit 10 includes a bottom member 107 disposed to close the opening on the lower side in the Z direction of the probe case 100, and an opening on the upper side in the Z direction of the probe case 100, and a tip (one end) 103a of the temperature probe 103. and a part including the tip (one end) 104a of the vibrating probe 104, and a lid member 108 disposed so as to close the vibrating probe 104 while allowing insertion thereof.

Returning to FIG. 1, the stay 101 and the stay 102 are fixed to the upper outer periphery of the probe case 100 in the Z direction, and extend toward opposite sides in the Y direction. Each of the stays 101 and 102 has a through hole through which the threaded portion of the U-shaped bolt 11 is inserted. The U-shaped bolt 11 is inserted through through holes formed in the stays 101 and 102, and is attached so that a portion of the threaded portion thereof is positioned downward in the Z direction, and is tightly connected by screwing nuts 12 and 13. Thereby, the probe part 10 of the measuring device 1 is fixed in a posture hanging downward in the Z direction with respect to the steam pipe 500.

The main body portion 14 includes a main body case 140, a lid 141, and a plurality of screws 142 to 145. In this embodiment, as an example, the main case 140 and the lid 141 form a rectangular parallelepiped box, and the screws 142 to 145 are used to join the main case 140 and the lid 141 together. Note that a circuit board and a battery unit, which will be described later, are housed inside the main body case 140 (internal space).

2. Configuration of Probes 103, 104 The configurations of the temperature probe 103 and the vibration probe 104 housed in the internal space 10a of the probe section 10 will be explained using FIG. 2.

As shown in FIG. 2, the outer shell of the probe unit 10 includes a cylindrical probe case 100, a disk-shaped bottom member 107, and a cover member 108. The probe case 100 is made of, for example, a metal member such as an aluminum alloy. Furthermore, the bottom member 107 and the lid member 108 are made of metal members such as stainless steel. The bottom member 107 is arranged to close the opening on the lower side in the Z direction in the probe case 100, and the lid member 108 is arranged so as to close the opening on the upper side in the Z direction in the probe case 100. The lid member 108 is attached to the probe case 100 using screws 105 and 106.

The temperature probe 103 and the vibration probe 104 are each long rod-shaped members, and are arranged at intervals in the X direction. Further, each of the temperature probe 103 and the vibration probe 104 is arranged in the internal space 10a of the probe section 10 so as not to come into contact with the inner wall surface of the probe case 100.

The temperature probe 103 is disposed to extend in the Z direction, and a portion including a tip (one end) 103a is inserted through a hole formed in the lid member 108 and protrudes upward in the Z direction. The tip 103a of the temperature probe 103 is in direct contact with the lower part of the surface 500a of the steam pipe 500 in the Z direction. The temperature probe 103 measures the temperature of the surface 500a of the steam pipe 500, and sends the measurement result to the main body 14 through a signal line 103b extending from the lower side in the Z direction. Note that, as will be described later, the temperature probe 103 is fixed to the lid member 108 to maintain its posture.

The vibration probe 104 is disposed to extend in the Z direction, and a portion including a tip (one end) 104a is inserted through a hole formed in the lid member 108 and protrudes upward in the Z direction. The tip 104a of the vibration probe 104 is in direct contact with the lower part of the surface 500a of the steam pipe 500 in the Z direction. Note that the tip 103a of the temperature probe 103 and the tip 104a of the vibration probe 104 directly contact the surface 500a of the steam pipe 500 at locations spaced apart from each other in the direction along the tube axis Ax500 of the steam pipe 500 (X direction). ing.

The vibration probe 104 has a heat insulating portion 104c, a vibration sensor 104b, and a signal line 104d on the opposite side (lower side in the Z direction) from the tip 104a in the longitudinal direction. The heat insulating part 104c is fixed to the lower end of the probe rod in the Z direction including the tip 104a, and makes it difficult for the heat transmitted from the steam pipe 500 to be transmitted to the vibration sensor 104b. The vibration sensor 104b is fixed to a pedestal (not shown) fixed to the heat insulating part 104c. The vibration sensor 104b is composed of a piezoelectric acceleration sensor using piezoelectric ceramics as a piezoelectric element. The signal line 104d extends from the vibration sensor 104b and is disposed to extend to the main body 14, and sends the measurement result of the vibration sensor 104b to the main body 14.

3. Mounting Structure of Probes 103 and 104 on Cover Member 108 The mounting structure of temperature probe 103 and vibration probe 104 on cover member 108 will be explained using FIG. 3. Note that FIG. 3 is a cross-sectional view of the lid member 108 at an intermediate portion in the Z direction.

As shown in FIG. 3, the lid member 108 has a substantially disk shape when viewed in plan from the Z direction (direction perpendicular to the paper surface of FIG. 3). The outer periphery of the lid member 108 is fitted into the inner periphery of the probe case 100 so as to be in contact with the inner periphery without any gap.

The lid member 108 is provided with four screw holes 108c, 108d, 108f, and 108g. The lid member 108 is also provided with a through hole 108a through which the temperature probe 103 is inserted, and a through hole 108b through which the vibration probe 104 is inserted. The screw holes 108c and 108f are continuous with the through hole 108a, and the screw holes 108d and 108g are continuous with the through hole 108b.

Further, the probe case 100 is provided with through holes 100a and 100b. The through hole 100a of the probe case 100 is continuous with the screw hole 108c when the lid member 108 is fitted into the probe case 100. Further, the through hole 100b of the probe case 100 is continuous with the screw hole 108d when the lid member 108 is fitted into the probe case 100.

As described above, the lid member 108 is attached to the probe case 100 using screws 105 and 106. Specifically, the screws 105 and 106 are inserted from the outer circumferential side of the probe case 100 toward the inside in the radial direction, and are screwed into the screw holes 108c and 108d of the lid member 108.

A portion of the temperature probe 103 is inserted into the through hole 108a of the lid member 108. The temperature probe 103 has a part of its outer circumferential surface pressed against the inner circumferential surface of the through hole 108a under pressure from the tip of a set screw (male screw) 109 screwed into the screw hole 108f.

A part of the vibration probe 104 is inserted into the through hole 108b of the lid member 108. The vibration probe 104 receives pressure from the tip of a set screw (male screw) 110 screwed into the screw hole 108g, and a part of the outer peripheral surface is pressed against the inner peripheral surface of the through hole 108b.

As described above, the lid member 108 is fixed to the probe case 100, and the temperature probe 103 and the vibration probe 104 are fixed to the lid member 108.

Note that the set screws 109 and 110 used in this embodiment refer to "hexagon socket set screws."

4. Configuration of main body section 14 The configuration of main body section 14 will be explained using FIG. 4. Note that FIG. 4 shows the main body 14 with the lid 141 removed.

As shown in FIG. 4, a circuit board 146 and a battery unit 147 are housed in the internal space 14a of the main body 14. In this embodiment, as an example, the circuit board 146 is housed inside the main body case 140 in the upper direction in the Z direction, and the battery unit 147 is housed in the lower part in the Z direction. The arrangement of accommodation can be changed as appropriate.

The circuit board 146 is fixed to the bottom wall of the main case 140 (the wall on the back side of the paper in FIG. 4) with four screws 148 to 151. The battery unit 147 has flange portions 147c and 147d extending on both sides in the X direction, and is fixed to the bottom wall of the main body case 140 by screws 152 to 155 that pass through the flange portions 147c and 147d.

The circuit board 146 has a board main body 146a and connectors 146b and 146c. A plurality of electronic chips (not shown) are mounted on the board body 146a, including a processing unit that processes measurement results sent from the temperature probe 103 and vibration probe 104, and a processing unit that processes the measurement results sent to a repeater or plant. A transmitter is provided to send the information to the management room, etc. Note that in the measuring device 1 according to the present embodiment, the circuit board 146 is configured to transmit data to a repeater or the like using the BLE (Bluetooth Low Energy (“Bluetooth” is a registered trademark of Bluetooth SIG Inc.) standard). The department is made up of:

As described above, in this embodiment, the main case 140 is made of a metal material, but the main case 140 or the lid 141 has a small hole that allows the passage of radio waves. In addition, a drainage path is also formed in the main body case 140 or the lid 141 in consideration of the case where rainwater or the like enters through the small holes.

A connector 111 to which the signal line 103b of the temperature probe 103 and the signal line 104d of the vibration probe 104 are connected is connected to the connector 146b of the circuit board 146. The signal lines 103b and 104d connected to the connector 111 are routed into the internal space 14a of the main body 14 through a hole 107a provided in the bottom member 107 and a hole provided in the main body case 140.

Here, a waterproof packing 159 is attached to a hole provided in the main body case 140 to prevent water from entering the internal space 14a of the main body part 14. The waterproof packing 159 is made of silicone rubber, for example. The waterproof packing 159 has small holes that allow the signal lines 103b and 104d to pass therethrough while restricting the passage of water.

Note that, as shown in FIG. 4, the main body case 140 is directly fixed to the bottom member 107 of the probe section 10.

A connector 147b to which a lead wire (power wire) 147a extending from a battery unit 147 is connected is connected to a connector 146c of the circuit board 146.

5. Mounting structure of circuit board 146 and battery unit 147 to main body case 140 The detailed mounting structure of circuit board 146 and battery unit 147 to main body case 140 will be explained using FIG. 5.

As shown in FIG. 5, the main body case 140 includes a bottom wall 140c and four side walls 140d and 140e, and has an opening 140a in a portion facing the bottom wall 140c. A hole 140b that is continuous with the hole 107a of the bottom member 107 is provided in the side wall 140d of the probe section 10, which is directly joined to the bottom member 107. The signal lines 103b and 104d pass through the holes 107a and 140b and are drawn into the internal space 14a of the main body 14.

As described above, the waterproof packing 159 is attached to the hole 140b to prevent water from passing through while allowing the signal lines 103b and 104d to pass therethrough.

The opening 140a of the main body case 140 can be opened and closed by attaching/removing the lid 141 as shown by arrow A. Although not shown in FIG. 5, the lid 141 is attached to the main body case 140 using screws 142 to 145 (see FIG. 1).

A plurality of bosses 156 to 158 are erected from the bottom wall 140c of the main body case 140 toward the opening 140a. The plurality of bosses 156 to 158 are formed from a heat insulating material (eg, alumina). The circuit board 146 is fixed to the main body case 140 by screwing screws 148 to 151 (screws 149 and 150 are not shown in FIG. 5) into female screws provided on the bosses 156 and 157. There is.

Similarly, the battery unit 147 is fixed to the main body case 140 by screwing screws 152 to 155 (screws 153 and 154 are not shown in FIG. 5) into female screws provided on the boss 158. .

6. Effects The measuring device 1 according to the present embodiment can have the following effects by having the above configuration.

In the measuring device 1 according to the present embodiment, the probe case 100 is fixed in a posture hanging downward in the Z direction with respect to the steam pipe 500 that is the measurement target, so that the probe case 100 may be tilted due to the influence of wind or the like. Even if the tips 103a and 104a of the temperature probe 103 and the vibration probe 104 are temporarily separated from the surface 500a of the steam pipe 500, the dead weight of the probe case 100 and the temperature probe 103 and the vibration probe 104 housed inside the probe case 100 This causes it to return to its original sagging posture. Therefore, in the measuring device 1, even if an external force is applied to the probe case 100 due to the influence of wind or the like, it is possible to continue measurement without repair work by an operator.

Furthermore, in the measuring device 1 according to the present embodiment, since the main body case 140 is directly fixed to the bottom member 107 that closes the lower opening of the probe case 100, even if the probe case 100 is tilted due to the influence of wind or the like, Not only the weight of the probe case 100 and the temperature probe 103 and the vibration probe 104 housed inside the probe case 100 but also the weight of the main body case 140, the lid 141, the circuit board 146, and the battery unit 147 are added to the original hanging position. He will return.

In addition, in the measuring device 1, since the main body case 140 is directly fixed to the lower part of the bottom member 107, the temperature is lower than when a connecting pipe is inserted between the probe case 100 and the main body case 140. The length L (see FIG. 4) of the signal lines 103b and 104d connecting the probe 103 or vibration probe 104 to the circuit board 146 can be shortened. Therefore, in the measuring device 1, the impedance between the temperature probe 103 and the vibration probe 104 and the circuit board 146 can be kept low, and measurement can be performed with high accuracy.

Furthermore, in the measuring device 1 according to the present embodiment, a hole 107a is formed in the bottom member 107, and a hole 140b is formed in the main body case 140, so that the hole 107a and the hole 140b are continuous with each other. Signal lines 103b and 104d are inserted through the holes 107a and 140b. Therefore, in the measuring device 1, the length L of the signal lines 103b and 104d can be made as short as possible, which is more suitable for highly accurate measurement.

Furthermore, in the measuring device 1 according to the present embodiment, since the probe case 100 and the main body case 140 are each made of a metal material, even if high-temperature steam flows inside the steam pipe 500, the probe case 100 and the main body case Damage to the case 140 due to heat can be suppressed.

Further, in the measuring device 1 according to the present embodiment, the circuit board 146 and the battery unit 147 are each attached to the inner surface (inner wall surface) of the bottom wall 140c of the main body case 140 via bosses 156 to 158 made of a heat insulating material. This prevents the circuit board 146 and battery unit 147 from being damaged even if the main body case 140 reaches a high temperature due to the heat transferred from the steam pipe 500, without using a highly heat-resistant circuit board or battery unit. Can be suppressed.

As described above, in the measuring device 1 according to the present embodiment, even if an external force is applied to the probe case 100 due to the influence of wind or the like, it is possible to continue measurement without repair work by an operator.

[Modified example]
Although the measuring device 1 according to the embodiment described above employs a configuration in which the main body case 140 is directly fixed to the lower part of the bottom member 107 of the probe section 10, the present invention is not limited to this. It is also possible to adopt a configuration in which a flexible pipe or the like is inserted between the main body part and the probe part.

Further, the probe part and the main body part do not necessarily need to be separate bodies, and it is also possible to adopt a configuration in which the temperature probe, vibration probe, circuit board, and battery unit are housed in the probe case.

Further, although the measuring device 1 according to the above embodiment adopts a configuration in which the main body portion 14 is disposed below the probe portion 10 in the Z direction, the present invention is not limited to this. For example, the main body may be placed on the side of the probe, or the probe may be suspended below the object to be measured and the main body may be placed above the object to be measured.

Further, in the measuring device 1 according to the embodiment described above, each of the probe case 100 and the main body case 140 is made of a metal material, but the present invention is not limited to this. For example, it is also possible to construct only the probe case from a metal material and the main body case from a resin material or the like. In this case, it is possible to prevent radio waves from the oscillating section of the circuit board from being blocked by the main body case.

Note that when a main body case made of a resin material is employed, a heat insulating member may be inserted between the probe case or the bottom member and the main body case. This makes it difficult for the heat transferred from the object to be measured via the probe case to be transmitted to the main body case, which is advantageous in suppressing damage and deformation of the main body case. It is also effective to add heat radiation fins or the like to the outer peripheral surface of the probe case.

In the embodiment described above, the measuring device 1 is attached to the steam pipe 500, but in the present invention, the object to be measured by the measuring device is not limited to this. For example, it is also possible to use a steam trap as the object to be measured.

Further, in the measuring device 1 according to the above embodiment, the U-shaped bolt 11 and the nuts 12, 13, which are examples of fixing members, are used to attach the measuring device 1 to the steam pipe 500. It is not subject to any limitations. For example, instead of the U-shaped bolt 11, it is also possible to use a roller chain, a wire rope, or the like. As a result, one type of measuring device can be used to measure various types of objects having different outer diameters.

1 Measuring device 10 Probe section 14 Main body section 14a Internal space 100 Probe case 103 Temperature probe 103a Tip (one end)
103b Signal line 104 Vibration probe 104a Tip (one end)
104d Signal line 107 Bottom member 107a Hole 140 Main case 140a Hole 146 Circuit board 147 Battery units 156 to 158 Boss (insulation member)
500 Steam piping (measurement object)
500a surface

Claims (5)

a vibration probe that is a long member, one end of which is placed in contact with the surface of the object to be measured, and the other end of which has a vibration sensor that measures vibration intensity;
a temperature probe that is an elongated member, one end of which is placed in contact with the surface of the object to be measured, and measures the surface temperature of the object to be measured;
With a part of the vibration probe including the one end and a part of the temperature probe including the one end exposed to the outside, the remaining part of the vibration probe including the vibration sensor and the temperature probe are exposed to the outside. a probe case inwardly housing the remainder of the probe;
a fixing member that fixes the probe case to the measurement target;
Equipped with
The probe case is fixed in a downwardly hanging position with respect to the measurement target.
Measuring device. The probe case has a cylindrical shape,
a bottom member that closes a lower opening of the probe case;
a circuit board connected to the vibration probe and the temperature probe via a signal line;
a battery unit that supplies power to the circuit board;
a main body case that accommodates the circuit board and the battery unit;
Furthermore,
The main body case is directly fixed to the bottom member.
The measuring device according to claim 1. The bottom member has a hole in a portion to which the main body case is fixed,
The main body case is provided in a portion fixed to the bottom member, and has a hole that is continuous with a hole in the bottom member,
The signal line connecting the vibration probe and the temperature probe to the circuit board is arranged to pass through a hole in the bottom member and a hole in the main body case.
The measuring device according to claim 2. Each of the probe case and the main body case is made of a metal material,
The measuring device according to claim 2. Each of the circuit board and the battery unit is attached to an inner wall surface of the main body case via a heat insulating member.
The measuring device according to claim 4.