JP2016011931A - Electromagnetic wave measurement device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electromagnetic wave measurement device capable of keeping an antenna directed to a measurement target while moving the antenna without complicating the configuration and increasing cost.SOLUTION: An electromagnetic wave measurement device includes; an antenna that catches an electromagnetic wave generated from a measurement target movably located along a track; a drive motor; and a mechanism unit that uses driving force of the drive motor to move the antenna along the track and to swing the antenna to direct the same to the measurement target in synchronization with the movement along the track.

Description

  The present invention relates to an electromagnetic wave measuring device that measures an electromagnetic wave emitted from an object to be measured such as various electric devices and various electronic devices, and in particular, moves an antenna along a track by a single drive motor. In addition, the present invention relates to a device devised so that the head can be swung in order to point the antenna toward the object to be measured in synchronization therewith.

As what discloses the structure of this kind of electromagnetic wave measuring apparatus, there exist patent document 1, patent document 2, patent document 3, etc., for example.
First, the “electromagnetic resistance test apparatus” according to the invention described in Patent Document 1 is provided with a specimen fixing base on which a specimen is placed, an arm extended from the specimen fixing base, and movable on the arm. And an electromagnetic wave radiation antenna installed to be movable up and down along the antenna support. In this electromagnetic resistance test apparatus, the arm is rotated on a horizontal plane around the specimen fixing base, and electromagnetic waves are transmitted from all directions to the specimen placed on the specimen fixing base via the antenna. Is irradiated.

  Note that the antenna is always oriented in the horizontal direction, and its orientation is not changed even if its vertical position is changed.

  Next, an “electromagnetic wave measuring apparatus and antenna positioner” according to the invention described in Patent Document 2 is placed on a mounting table on which a device under test is mounted and rotated in a horizontal plane, and at a position spaced apart from the mounting table. An installed antenna tower, an arm support that can be moved up and down along the antenna tower, an arm that is installed on the arm support so as to move forward and backward, and a tip of the arm And the antenna installed in the. The antenna is rotated in a vertical plane by, for example, an AC servo motor, and is also rotated in a plane perpendicular to the directivity direction of the antenna. Therefore, the antenna is always directed to the device under test even if the position in the height direction is changed.

  Patent Document 2 also describes a conventional technique in which an antenna is moved along an arc-shaped rail to change the vertical position of the antenna, and the antenna is always directed to a device under test. ing.

  Furthermore, an “electromagnetic field pattern measuring device” according to the invention described in Patent Document 3 includes a pair of rotation driving means installed on an elevating mechanism, struts connected to each of the rotation driving means, It is comprised from the beam-shaped member installed in the front-end | tip, and the test antenna installed in the said beam-shaped member. An antenna under test is installed between the rotation driving means, and the test antenna is moved in an arc shape by rotating the test antenna in a vertical plane by the rotation driving means. I always try to point in the direction.

JP-A-5-133898 JP 2003-43083 A JP 2006-53010 A

However, the above conventional configuration has the following problems.
First, in the case of the “electromagnetic immunity test apparatus” according to the invention described in Patent Document 1, the antenna is always oriented in the horizontal direction, and when the vertical position is changed, the antenna with respect to the specimen is changed. There was a problem that the directivity was lost.
On the other hand, in the case of the “electromagnetic wave measuring apparatus and antenna positioner” according to the invention described in Patent Document 2, the directivity of the antenna with respect to the device under test when the position in the height direction of the antenna is changed is ensured. However, for this purpose, for example, rotation control of two axes by an AC servo motor must be performed, and the arc-shaped rail must be installed, which makes the configuration complicated and costly. There was a problem of being expensive.

  Furthermore, in the case of the “electromagnetic field pattern measuring apparatus” according to the invention described in Patent Document 3, the directivity of the test antenna with respect to the antenna under test is ensured, but a pair of rotation drive means must be installed. In other words, the configuration is complicated and the cost is high.

  The present invention has been made based on such points, and the object thereof is to move the antenna along a trajectory by a single drive motor and to synchronize the antenna with the object to be measured. An object of the present invention is to provide an electromagnetic wave measuring apparatus that can be swung so as to be directed toward the object.

In order to achieve the above object, an electromagnetic wave measuring apparatus according to claim 1 of the present invention includes an antenna that is installed so as to be movable along a track and catches an electromagnetic wave output from a device under measurement, a drive motor, and the drive motor. And a mechanism for moving the antenna along the trajectory by a driving force and swinging the antenna to direct the antenna toward the object to be measured.
The electromagnetic wave measuring apparatus according to claim 2 is the electromagnetic wave measuring apparatus according to claim 1, wherein the mechanism portion is provided with a swing motion amount adjusting means for adjusting a swing motion amount with respect to the movement of the antenna. It is characterized by.
The electromagnetic wave measuring apparatus according to claim 3 is the electromagnetic wave measuring apparatus according to claim 1 or 2, wherein the mechanism portion is provided with a synchronization releasing means capable of releasing the synchronization of the swinging motion with respect to the movement of the antenna. It is characterized by being.
An electromagnetic wave measurement apparatus according to claim 4 is the electromagnetic wave measurement apparatus according to any one of claims 1 to 3, wherein the mechanism section is configured to move the antenna by rotation of the drive motor; And a mechanism for swinging operation that swings the antenna in synchronism with the movement of the antenna.
The electromagnetic wave measuring apparatus according to claim 5 is the electromagnetic wave measuring apparatus according to claim 4, wherein the moving mechanism section is separated from the driving motor side rotating body and the driving motor side rotating body along the orbit. -It is composed of the arranged anti-drive motor side rotator, and an endless body that is wound around these drive motor side rotator and anti-drive motor side rotator and to which the antenna is attached. It is what.
An electromagnetic wave measuring apparatus according to claim 6 is the electromagnetic wave measuring apparatus according to claim 4 or 5, wherein the swinging mechanism section includes a plurality of pairs of rotating bodies, and any pair of rotating bodies. By selecting the pair, the amount of swinging motion with respect to the movement of the antenna is adjusted.
An electromagnetic wave measurement device according to claim 7 is the electromagnetic wave measurement-side defining device according to any one of claims 4 to 6, wherein the swing motion mechanism portion is a selection for selecting a relationship with respect to the moving mechanism portion. A mechanism unit is provided, and the selection mechanism unit cuts off the relationship with the moving mechanism unit, thereby releasing the synchronization of the swinging motion with respect to the movement of the antenna.

As described above, according to the electromagnetic wave measuring apparatus according to claim 1 of the present invention, the antenna that is installed so as to be movable along the track and catches the electromagnetic wave output from the measurement target device, the drive motor, and the drive motor. A mechanism for moving the antenna along the trajectory by a driving force and swinging the antenna to direct the object to be measured in synchronism therewith. The antenna can be moved along the trajectory, and can be swung to synchronize with the antenna so that the antenna is directed to the object to be measured.
According to the electromagnetic wave measuring apparatus according to claim 2, in the electromagnetic wave measuring apparatus according to claim 1, the mechanism unit is provided with a swing motion amount adjusting means for adjusting a swing motion amount with respect to the movement of the antenna. Therefore, it is possible to correspond to a device to be measured installed at various distances from the electromagnetic wave measuring device.
According to the electromagnetic wave measuring apparatus according to claim 3, in the electromagnetic wave measuring apparatus according to claim 1 or claim 2, the mechanism part is provided with a synchronization releasing means capable of releasing the synchronization of the swinging motion with respect to the movement of the antenna. Therefore, the antenna can be moved up and down while keeping the angle of the antenna constant.
According to the electromagnetic wave measuring apparatus according to claim 4, in the electromagnetic wave measuring apparatus according to any one of claims 1 to 3, the mechanism section includes a moving mechanism section that moves the antenna by rotation of the drive motor. The mechanism for swinging movement of the antenna that swings the antenna in synchronization with the movement of the antenna, and the movement of the antenna and the swinging of the antenna synchronized with the movement of the antenna with a simple configuration. The action can be performed.
According to the electromagnetic wave measuring apparatus according to claim 5, in the electromagnetic wave measuring apparatus according to claim 4, the moving mechanism section is along the trajectory with respect to the driving motor side rotating body and the driving motor side rotating body. Since it is composed of an anti-drive motor-side rotating body that is spaced and arranged, and an endless body that is wound around the drive motor-side rotating body and the anti-drive motor-side rotating body and to which the antenna is attached, The antenna can be moved with a simple configuration.
Further, according to the electromagnetic wave measuring apparatus according to claim 6, in the electromagnetic wave measuring apparatus according to claim 4 or 5, the mechanism unit for swinging operation includes a plurality of pairs of rotating bodies, and an arbitrary pair of rotations. By selecting the body pair, the swinging motion amount with respect to the movement of the antenna is adjusted. Therefore, the swinging motion amount of the antenna can be adjusted with a simple configuration.
Moreover, according to the electromagnetic wave measuring device according to claim 7, in the electromagnetic wave measuring side defining device according to any one of claims 4 to 6, the swinging mechanism portion selects a relationship with the moving mechanism portion. Since the selection mechanism unit is provided, and the relationship with the moving mechanism unit is disconnected by the selection mechanism unit, the synchronization of the swinging motion with respect to the movement of the antenna is released. The synchronization of the swing motion with respect to the movement of can be released.

It is a figure which shows one embodiment of this invention, and is a side view which shows an electromagnetic wave measuring apparatus. It is a figure which shows one embodiment of this invention, and is the enlarged view of the II section of FIG. 1, and is the figure which removed the timing pulley support member for a raising / lowering front side, and showed the motor cover with the virtual line. It is a figure which shows one embodiment of this invention, and is a III-III arrow line view of FIG. It is a figure which shows one embodiment of this invention, and is IV-IV arrow line view of FIG. It is a figure which shows one embodiment of this invention, and is an enlarged view of the V section of FIG. It is a figure which shows one Embodiment of this invention, and is the enlarged view of the VI section of FIG. 2, and is the figure which removed the gear-shaft support member while showing an antenna attachment part with a virtual line. It is a figure which shows one embodiment of this invention, and is a perspective view which shows the structure of the mechanism part of the part shown in FIG. FIG. 8 (a) is a view taken along the line VIII-VIII of FIG. 6, showing a part of the antenna mounting portion and the gear shaft support member with phantom lines, FIG. 8B is a diagram showing a state where the swinging operation is performed, and FIG. 8B is an enlarged view of a portion VIIIb in FIG. FIG. 7 is a diagram illustrating an embodiment of the present invention, and is a view taken along arrow IX-IX in FIG. 6, showing a part of the antenna mounting portion and the gear shaft support member with phantom lines, and the antenna does not swing It is a figure which shows a state. FIG. 7 is a diagram illustrating an embodiment of the present invention, and is an XX arrow view of FIG. 6, in which a part of an antenna mounting portion and a gear shaft support member are indicated by phantom lines, It is a figure which shows the state which removes the operation amount adjustment timing belt from the driven pulley for operation amount adjustment. FIGS. 11A and 11B are views showing an embodiment of the present invention, FIG. 11A is a front view showing a state where a second timing pulley pair of a swing operation mechanism is selected, and FIG. 11B is a swing operation mechanism. FIG. 11C is a front view showing a state in which the fourth timing pulley pair of the swing motion mechanism unit is selected. It is a figure which shows one embodiment of this invention, and is a figure which extracts an antenna attaching part from FIG. 8, and shows an antenna, FIG. 12 (a) rotates an antenna with an air cylinder and respond | corresponds to a vertically polarized wave FIG. 12B is a diagram showing a state corresponding to horizontal polarization by rotating the antenna by an air cylinder.

An embodiment of the present invention will be described with reference to FIGS. The electromagnetic wave measuring apparatus 1 according to this embodiment is roughly configured as follows. First, as shown in FIGS. 1 and 2, the base 5 is installed on the installation surface 3. The base 5 includes four moving casters 6 on the bottom surface and four fixing members 8. When moving, the fixing by the fixing member 8 is released and the moving caster 6 moves.
A support column 7 is erected on the base 5 as a track. An antenna 11 is installed on the support column 7 so that it can be moved up and down by a mechanism unit 9 for moving up and down as a moving mechanism unit. The antenna 11 is installed so as to be capable of swinging in synchronization with the lifting / lowering operation by the swinging mechanism 13.

The antenna 11 is for receiving electromagnetic waves emitted from an object to be measured (for example, various electrical devices and various electronic devices) 15 installed on the installation surface 3. In the case of the present embodiment, as described above, when the antenna 11 is moved up and down, the antenna 11 is swung in synchronization with the lifting and lowering operation so that the antenna 11 is always directed toward the measured object 15. ing.
Further, the swinging motion amount with respect to the lifting / lowering motion amount of the antenna 11 can be adjusted, thereby responding to the variation in the distance between the measured object 15 and the support column 7.
Hereinafter, the configuration of each unit will be described in detail.

  First, the raising / lowering mechanism unit 9 will be described with reference to FIGS. On the outer peripheral side of the column 7, an elevating block 17 is installed along the column 7 so as to be movable up and down. The lifting block 17 is a cylinder having a substantially square cross-sectional shape. In addition, a plurality of rollers 19 (24 in total in the case of this embodiment, each of which is 24 in total in the case of this embodiment) are rotatably penetrated and arranged in the lifting block 17. These rollers 19 are in contact with the outer peripheral surface of the column 7, and the lifting block 17 moves up and down along the column 7 via these rollers 19.

  In addition, on the upper and lower ends of the lifting block 17 on the left side in FIG. 2, a lifting operation belt upper connecting portion 21 and a lifting operation belt lower connecting portion 23 are installed. The raising / lowering belt upper connecting portion 21 is installed at the upper end of the raising / lowering block 17 in FIG. 2, and includes a belt hooking portion 25 and a fixing portion 27. As shown in FIG. 3, the belt hooking portion 25 includes a U-shaped member 29, and a shaft 31 is installed on the distal end side (upper end side in FIG. 3) of the U-shaped member 29. One end of an elevating belt 55 described later is wound around the shaft 31 and is fixed by a clip 56a. The fixing portion 27 is fixed to the elevating block 17, and a bolt 33 is passed through the fixing portion 27. The fixing portion 27 and the belt hooking portion 25 are connected by screwing the bolt 33 into the U-shaped member 29.

Also, the lower and upper belt connecting portion 23 for lifting operation is installed on the lower end side of the lifting block 17 in FIG. Similar to the belt hooking portion 25 of the elevating / lowering belt upper connecting portion 21, the elevating / lowering belt lower connecting portion 23 includes a U-shaped member 35 and a shaft 37. The other end side of an elevating operation belt 55 described later is wound and fixed by a clip 56b.
And the position of the up-and-down direction in FIG. 2 with respect to the said fixing | fixed part 27 of the said belt hooking part 25 is changed by rotating / advancing the bolt 33 by the side of the said belt upper side connection part 21 for raising / lowering operation | movement, and this raises / lowers as mentioned later The tension of the operating belt 55 is adjusted.

  As shown in FIGS. 2 and 3, a lower lifting operation timing pulley 41 is rotatably installed on the base end side (lower end side in FIG. 2) of the column 7. That is, as shown in FIG. 3, plate-like lower timing movement support pulleys 43 and 43 are installed on both sides in the left-right direction in FIG. Has been. Between these lower lifting / lowering timing pulley support members 43 and 43, a lower lifting / lowering timing pulley support shaft 45 is provided by a bearing (not shown) incorporated in the lower lifting / lowering timing pulley support members 43 and 43, respectively. The lower lifting / lowering timing pulley 41 is fixed to the lower lifting / lowering timing pulley support shaft 45. Further, the left end in FIG. 3 of the lower lifting / lowering timing pulley support shaft 45 penetrates the lower lifting / lowering timing pulley support member 43 on the left in FIG. ing.

  As shown in FIG. 5, an upper lifting / lowering timing pulley 47 is rotatably installed on the tip end side (upper end side in FIG. 5) of the column 7. That is, a hollow front end cover 49 is crowned and fixed to the front end side (upper end side in FIG. 5) of the support column 7, and on the inner side of the front end cover 49, there is an upper lifting operation timing pulley support shaft. 51, both ends thereof are fixed to the tip end cover 49, and the upper lifting / lowering timing pulley 47 is rotatably mounted on the upper lifting / lowering timing pulley support shaft 51 via a bearing 53. Has been.

The above-described lifting operation timing belt 55 is wound around the lower lifting operation timing pulley 41 and the upper lifting operation timing pulley 47. As described above, one end side of the elevating operation belt 55 is connected to the upper end side of the elevating block 17 via the elevating operation belt upper connecting portion 21 described above. The other end side is connected to the lower end side of the elevating block 17 via the elevating operation belt lower side connecting portion 23 already described.
Further, approximately half of the lifting / lowering belt 55 passes through the support column 7 and the other part is exposed on the front side of the support column 7 (left side in FIG. 2).

As shown in FIG. 3, a driving timing pulley 57 is fixed to the left end of the lower lifting operation timing pulley support shaft 45 in FIG. As shown in FIG. 2, a drive motor 59 is installed and fixed on the base 5, and as shown in FIG. 4, a drive motor side timing pulley 63 is provided on the output shaft 61 of the drive motor 59. It is fixed. A driving belt 65 is wound around the driving timing pulley 57 and the driving motor side timing pulley 63.
When the drive motor 59 is rotated and driven, the power is transmitted to the lower lifting operation timing pulley 41 via the drive motor side timing pulley 63, the driving belt 65, and the driving timing pulley 57. By rotating the lower lifting / lowering timing pulley 41, the lifting / lowering belt 55 rotates in a loop via the upper lifting / lowering timing pulley 47, so that the lifting block 17 moves along the support column 7. Go up and down.
The drive motor 59 is covered with a motor cover 67.

Next, the swinging mechanism 13 will be described with reference to FIGS.
On the surface (the surface on the front side in the vertical direction of the sheet in FIG. 2) adjacent to the surface (the surface on the left side in FIG. 2) from which the lifting belt 55 is exposed, the swinging operation belt 71 is stretched. It is installed. That is, as shown in FIG. 5, the upper end side in FIG. 5 of the swinging motion belt 71 is fixed to the upper end side in FIG. 5 of the support column 7, and as shown in FIG. The lower end side in FIG. 2 of the working belt 71 is connected to the support column 7 via the swinging belt connecting portion 73.

  The swinging operation belt connecting portion 73 is also composed of a belt hooking portion 75 and a fixing portion 77 in the same manner as the above-described lifting operation belt upper connecting portion 21. As shown in FIG. 2, the belt hooking portion 75 has a shaft 81 installed on the distal end side (the upper end side in FIG. 2) of the U-shaped member 79, and the shaft 81 has the swinging operation belt 71. The lower end side is wound and fixed by the clip 80. The fixing portion 77 is fixed to the support column 7, and the fixing portion 77 and the belt hooking portion 75 are connected by a bolt 83 that passes through the fixing portion 77 and is screwed to the U-shaped member 79. It is connected.

The position of the belt hooking portion 75 in the vertical direction in FIG. 3 with respect to the fixing portion 77 is changed by rotating and advancing / retracting the bolt 83 on the side of the belt connecting portion 73 for swinging operation. The tension of the belt 71 is adjusted.
The swinging belt 71 is disposed in a space between the outer peripheral surface of the support column 7 and the inner peripheral surface of the lifting block 17.

As shown in FIG. 6, plate-like swinging operation gear mounting members 91, 91 are installed and fixed at both ends in the left-right direction in FIG. 6 of the vertical block front side surface of FIG. ing. Between these gear-operating gear mounting members 91 and 91, and in the lower side of FIG. 6, the head-swinging operation is performed via bearings (not shown) that are respectively provided in the gear-operating gear mounting members 91 and 91. A gear support shaft 93 is rotatably supported. The swinging operation timing pulley 95 and the first swinging operation gear 97 are fixed to the swinging operation gear support shaft 93.
7 is a perspective view of the main part of FIG.

  Further, a tension roller support shaft 99 is installed between the above-mentioned swing operation gear mounting members 91 and 91 and below the swing operation gear support shaft 93 in FIG. A tension roller 101 is rotatably installed on the support shaft 99 via a bearing 100. The tension roller 101 urges and meshes the swing motion belt 71 toward the swing motion timing pulley 95 side.

  As shown in FIG. 8, a selection mechanism 121 is installed between the above-mentioned swinging operation gear mounting members 91, 91. Hereinafter, the configuration of the selection mechanism unit 121 will be described in detail. That is, each of the swinging operation gear mounting members 91, 91 is formed with inverted V-shaped swinging operation selection grooves 103, 103. The swinging operation selection grooves 103, 103 are formed in the swinging operation selection grooves 103, 103, respectively. The both ends of the oscillating motion selection gear support shaft 105 are engaged and supported. A swing motion selection gear 107 is rotatably supported on the swing motion selection gear support shaft 105 via a bearing 106.

  When the both ends of the swing motion selection gear support shaft 105 are at the left end in FIG. 8 of the swing motion selection grooves 103, 103, the swing motion selection gear 107 is moved to the first swing motion. 8 is engaged with an operation gear 97 and a second swing operation gear 129, which will be described later. The swing operation selection gear support shaft 105 is located on the right side of the swing operation selection grooves 103, 103 in FIG. When in the end, the swing motion selection gear 107 is separated from the first swing motion gear 97 and a second swing motion gear 129 described later.

  Further, as shown in FIG. 6, swinging operation selection gear support shaft fixing screws 109, 109 are screwed to both ends of the swinging operation selection gear support shaft 105. When these swinging operation selection gear support shaft fixing screws 109 and 109 are rotated and moved in directions close to each other, the swinging operation selection gear support shaft fixing screws 109 and 109 become the swing operation gear mounting member. The position of the oscillating motion selection gear support shaft 105 in the oscillating motion selection grooves 103 and 103 is fixed. Further, when the swing motion selection gear support shaft fixing screws 109, 109 are rotated in the opposite directions and moved away from each other, the swing motion selection gear support shaft 105 is released from being fixed, The swing motion selection grooves 103 and 103 are movable.

Further, concave portions 111, 111 are formed on the outer side surfaces (the front side or the rear side surface in the direction perpendicular to the paper surface in FIG. 8) of the gear mounting members 91, 91 for swinging operation.
Note that the already described swinging motion selection grooves 103 and 103 are provided in a positional relationship so as to overlap the recesses 111 and 111.
In these recesses 111, 111, swinging operation selection gear support shaft fixing members 113, 113 are respectively installed so as to be rotatable around the rotation shafts 115, 115. As shown in FIG. 8, the swing motion selection gear support shaft fixing members 113 are directed downward in FIG. 8 and are in contact with the swing motion selection gear support shaft 105 as shown in FIG. Then, the movement of the swing motion selection gear support shaft 105 in the swing motion selection grooves 103 and 103 is restricted.
As shown in FIG. 9, the swing motion selection gear support shaft fixing members 113, 113 are rotated clockwise in FIG. 9 and are not in contact with the swing motion selection gear support shaft 105. Then, the swing motion selection gear support shaft 105 can be moved in the swing motion selection grooves 103 and 103.

Further, the swinging operation selecting gear support shaft fixing member 113 has a rotation restricting groove 117, and the rotation restricting groove 117 is fixed to the swinging operation gear mounting member 91. The movement restricting member 119 is penetrated. The rotation restriction groove 117 and the rotation restriction member 119 restrict the rotation range of the swing motion selection gear support shaft fixing member 113.
A head 115 a is formed on the rotation shaft 115, and a head 119 a is formed on the rotation restricting member 119. Further, the rotation shaft 115 and the rotation restricting member 119 are screwed into a female screw portion (not shown) formed in the driving gear mounting member 91, and can be moved forward and backward in the direction perpendicular to the paper surface in FIG. Yes.
Then, the rotation shaft 115 and the rotation restricting member 119 are rotated, and the head movement 115a and the head 119a are used to attach the swing motion selection gear support shaft fixing member 113 to the swing motion gear attachment. By pressing / urging toward the member 91 side, the rotation of the swing motion selection gear support shaft fixing member 113 can be restricted.

  As shown in FIG. 8, a swing motion amount adjusting means 120 is installed between the swing motion gear mounting members 91, 91. Hereinafter, the configuration of the swing movement amount adjusting means 120 will be described in detail. First, movement amount adjusting timing pulley moving grooves 123, 123 are formed on the left side in FIG. 8 from the swinging operation selecting grooves 103, 103 of the above-mentioned swing operation gear mounting members 91, 91. Both ends of the drive-side operation amount adjustment timing pulley support shaft 125 are engaged and supported in the operation amount adjustment timing pulley moving grooves 123 and 123. As shown in FIGS. 6 and 8, the already-described second swinging operation gear 129 rotates via a bearing 127 on the right end side in FIG. 6 of the drive side operation amount adjusting timing pulley support shaft 125. It is installed as possible.

Further, as shown in FIG. 6, the first drive side operation amount adjusting timing pulley 131 is rotated on the left end side in FIG. 6 of the drive side operation amount adjusting timing pulley support shaft 125 via a bearing (not shown). It is installed as possible.
Further, a connecting member 133 penetrated by the driving side operation amount adjusting timing pulley support shaft 125 is fixed to the left side of the second swinging operation gear 129 in FIG. Between the connecting member 133 and the first drive side operation amount adjustment timing pulley 131, a second drive side operation amount adjustment timing pulley 135, a third drive side operation amount adjustment timing pulley 137, and a fourth drive are provided. A side operation amount adjusting timing pulley 139 is inserted. The connecting member 133, the first drive side operation amount adjustment timing pulley 131, the second drive side operation amount adjustment timing pulley 135, the third drive side operation amount adjustment timing pulley 137, and the fourth drive side operation amount adjustment timing. A plurality of shafts (not shown) are passed through the pulley 139. Thus, when the second swinging operation gear 129 is rotated, the first driving side operation amount adjusting timing pulley 131, the second driving side operation amount adjusting timing pulley 135, and the third driving side operation amount adjustment. The timing pulley 137 and the fourth driving side operation amount adjusting timing pulley 139 are also rotated.

  The number of teeth of the first drive side operation amount adjusting timing pulley 131 is set to 40, for example, and the number of teeth of the second drive side operation amount adjusting timing pulley 135 is set to 34, for example. The number of teeth of the third driving side operation amount adjusting timing pulley 137 is set to 26, for example, and the number of teeth of the fourth driving side operation amount adjusting timing pulley 139 is set to 22, for example. ing.

  As shown in FIG. 6, drive side operation amount adjusting timing pulley support shaft fixing screws 141 and 141 are screwed to both ends of the drive side operation amount adjusting timing pulley support shaft 125. When the drive side operation amount adjusting timing pulley support shaft fixing screws 141 and 141 are rotated and moved in directions close to each other, the drive side operation amount adjusting timing pulley support shaft fixing screws 141 and 141 are swung. By pressing against the gear mounting members 91, 91, the position of the drive side operation amount adjustment timing pulley support shaft 125 in the operation amount adjustment timing pulley moving grooves 123, 123 is fixed. . Further, when the driving-side operation amount adjusting timing pulley support shaft fixing screws 141 and 141 are rotated and moved in directions away from each other, the driving-side operation amount adjusting timing pulley support shaft 125 is released, The operation amount adjustment timing pulley moving grooves 123 and 123 can be moved.

Further, between the above-mentioned swinging operation gear mounting members 91 and 91, and on the upper side in FIG. 6, a driven side is provided via bearings (not shown) respectively provided in the above-mentioned swinging operation gear mounting members 91 and 91. An operation amount adjusting timing pulley rotating shaft 143 is rotatably supported.
This driven side operation amount adjusting timing pulley rotating shaft 143 includes a first driven side operation amount adjusting timing pulley 145, a second driven side operation amount adjusting timing pulley 147, and a third driven side operation amount adjusting timing pulley 149. The fourth driven side operation amount adjusting timing pulley 151 is fixed.

  The number of teeth of the first driven side operation amount adjusting timing pulley 145 is set to 40, for example, and the number of teeth of the second driven side operation amount adjusting timing pulley 147 is set to 50, for example. The number of teeth of the third driven side operation amount adjusting timing pulley 149 is set to 50, for example, and the number of teeth of the fourth driven side operation amount adjusting timing pulley 151 is set to 60, for example. ing.

  Also, the first drive side operation amount adjustment timing pulley 131 and the first driven side operation amount adjustment timing pulley 145, or the second drive side operation amount adjustment timing pulley 135 and the second driven side operation amount. The adjustment timing pulley 147, or the third drive side operation amount adjustment timing pulley 137 and the third driven side operation amount adjustment timing pulley 149, or the fourth drive side operation amount adjustment timing pulley 139 and the above. An operation amount adjusting timing belt 153 is selectively wound and meshed with the fourth driven side operation amount adjusting timing pulley 151.

That is, the first drive side operation amount adjustment timing pulley 131 and the first driven side operation amount adjustment timing pulley 145 constitute a first timing pulley pair 155, and the second drive side operation amount adjustment timing pulley 135. And the second driven-side operation amount adjusting timing pulley 147 constitute a second timing pulley pair 157, and the third driving-side operation amount adjusting timing pulley 137 and the third driven-side operation amount adjusting timing pulley 149. A third timing pulley pair 159 is configured, and a fourth timing pulley pair 161 is configured by the fourth driving side operation amount adjusting timing pulley 139 and the fourth driven side operation amount adjusting timing pulley 151. As shown in FIGS. 6 and 11A to 11C, the first timing pulley pair 155, the second timing pulley pair 157, the third timing pulley pair 159, and the fourth timing pulley pair 161 By selecting any of them and winding the operation amount adjusting timing belt 153, it is possible to select any one of the four types of tooth number ratios.
Incidentally, FIG. 6 shows a state where the first timing pulley pair 155 is selected. In this case, the number of teeth of the first drive side operation amount adjusting timing pulley 131: the number of teeth of the first driven side operation amount adjusting timing pulley 145 = 40: 40 = 1: 1 is obtained. Moreover, this corresponds to the case where the distance between the measurement object 15 and the column 7 is 3000 mm in FIG.
FIG. 11A shows a state where the second timing pulley pair 157 is selected. In this case, the number of teeth of the second driving side operation amount adjusting timing pulley 135: the number of teeth of the second driven side operation amount adjusting timing pulley 147 = 34: 50 = 1: 1.47. It is done. This corresponds to the case in FIG. 1 where the distance between the measurement object 15 and the support column 7 is 5000 mm.
FIG. 11B shows a state where the third timing pulley pair 159 is selected. In this case, the number of teeth of the third driving side operation amount adjusting timing pulley 137: the number of teeth of the third driven side operation amount adjusting timing pulley 149 = 26: 50 = 1.92 is obtained. It is done. This corresponds to the case where the distance between the measurement object 15 and the support column 7 is 7000 mm in FIG.
Further, FIG. 11C shows a state where the fourth timing pulley pair 161 is selected. In this case, the number of teeth of the fourth driving side operation amount adjusting timing pulley 139: the number of teeth of the fourth driven side operation amount adjusting timing pulley 151 = 22: 60 = 1: 2.72 is obtained. Will be. This corresponds to the case in FIG. 1 where the distance between the measurement object 15 and the column 7 is 10,000 mm.

  As shown in FIG. 10, when the drive-side operation amount adjustment timing pulley support shaft 125 is moved upward in FIG. 10 along the operation amount adjustment timing pulley moving grooves 123, 123, the operation amount is obtained. The adjustment timing belt 153 is loosened, and the operation amount adjustment timing belt 153 can be replaced. Also, the operation amount adjustment timing is adjusted by appropriately moving the drive side operation amount adjustment timing pulley support shaft 125 downward along the operation amount adjustment timing pulley moving grooves 123, 123 in FIG. The tension of the belt 153 is adjusted.

  Further, the driven pulley amount adjusting shaft 143 for adjusting the driven side operation amount passes through the right side swinging gear mounting member 91 in FIG. 6 and is positioned on the right side of the right side swinging gear mounting member 91 in FIG. A handle 162 is fixed to the right end in FIG. 6 of the driven-side operation amount adjusting timing pulley rotating shaft 143. With the handle 162, the driven pulley amount adjusting timing pulley rotating shaft 143 can be rotated.

  A worm gear 163 is fixed to the driven pulley amount adjusting timing pulley rotating shaft 143, and a worm wheel 165 is engaged with the worm gear 163. As shown in FIG. 8, the worm wheel 165 is rotated by a gear shaft support member 167 installed on the upper end side between the swinging gear attaching members 91 and 91 and a bearing (not shown) respectively provided in the elevating block 17. It is fixed to a gear shaft 169 that is supported. The gear shaft 169 is fixed with a swinging motion transmission timing pulley 171.

  A swinging operation rotating shaft 173 is attached and fixed to the upper side of the elevating block 17 by a fixing bolt (not shown). The swinging operation rotating shaft 173 is connected to the swinging operation rotating shaft 173 via a bearing 175. A timing pulley 177 is rotatably installed. An oscillation motion transmission timing belt 179 is wound and meshed with the oscillation motion transmission timing pulley 171 and the oscillation motion timing pulley 177.

As shown in FIG. 6, a tension roller 181 is installed on the lower side in FIG. 6 of the timing pulley 177 for swinging operation. The tension roller 181 is rotatable by a bearing 185 installed on a rotary shaft 183 provided upright on the elevating block 17. The tension roller 181 biases the swing motion transmission timing belt 179 toward the swing motion timing pulley 177, so that the swing motion transmission timing belt 179 and the swing motion timing pulley 177 are It is designed to be engaged.
As shown in FIG. 6, another tension roller 187 is installed on the upper side in FIG. 6 of the timing pulley 171 for transmitting the swing motion. The tension roller 187 can be rotated by a bearing 190 installed on a rotary shaft 189 provided upright on the elevating block 17. The tension roller 187 urges the swing motion transmission timing belt 179 toward the swing motion transmission timing pulley 171, so that the swing motion transmission timing belt 179 and the swing motion transmission timing pulley are urged. 171 is meshed.

An antenna mounting portion 191 is installed on the timing pulley 177 for swinging operation. That is, the antenna mounting portion 191 includes a base portion 193 having a substantially U-shaped cross-sectional shape, and is attached and fixed to the swinging operation timing pulley 177 via the base portion 193 by a fixing bolt (not shown). ing.
In addition, an antenna mounting arm 195 is rotatably installed in the base portion 193 through the base portion 193 in the left-right direction in FIG. 6 via bearings 194a and 194b. The antenna 11 already described is installed at the left end of the antenna mounting arm 195 in FIG. (Not shown in FIG. 6)

  Further, an antenna rotation arm 197 is fixed to the right side of the antenna mounting arm 195 in FIG. Further, the right side in FIG. 6 of the base portion 193 is extended to the lower side in FIG. 6, and an air cylinder 199 is rotatably installed in the extended portion via the shaft mechanism 208. The tip of the piston rod 200 of the air cylinder 199 and the lower end side in FIG. 6 of the antenna rotation arm 197 are connected to each other via a bolt / nut fastener 202 so as to be rotatable.

When driving air is supplied to the air cylinder 199 from the compressor (or air tank) (not shown) via the lower port 204, the piston rod 200 is moved as shown in FIG. 12 (a). When moved upward, the antenna rotating arm 197 and thus the antenna 11 are rotated in the clockwise direction in FIG. At this time, the antenna 11 is in a state corresponding to vertically polarized waves (electromagnetic waves vibrating in the vertical direction in FIG. 12A).
Exhaust is performed via the upper port 206.
On the other hand, when driving air is supplied from an unillustrated compressor (or air tank) via the upper port 206, the piston rod 200 is moved as shown in FIG. When moved downward, the antenna rotating arm 197 and thus the antenna 11 are rotated counterclockwise in FIG. At this time, the antenna 11 is in a state corresponding to horizontally polarized waves (electromagnetic waves vibrating in the left-right direction in FIG. 12B).
Exhaust is performed via the lower port 204.

  As shown in FIG. 6, the base portion 193 is formed with arc-shaped rotation range restricting grooves 201 and 201 around the rotation axis of the swing timing timing pulley 177. The rotation range restriction members 203 and 203 are installed in the elevating block 17 through the rotation range restriction grooves 201 and 201. The antenna mounting portion 191 can be rotated in a range until the rotation range restriction members 203 and 203 are brought into contact with both ends of the rotation range restriction grooves 201 and 201.

Next, the operation of the electromagnetic wave measuring apparatus 1 according to this embodiment will be described.
First, the normal operation will be described. When the drive motor 59 is driven, the rotation of the output shaft 61 is transmitted to the drive timing pulley 57 via the drive motor side timing pulley 63 and the drive belt 65. When the driving timing pulley 57 is rotated, the lower lifting / lowering timing pulley 41 is rotated. When the lower lifting / lowering operation timing pulley 41 is rotated, the upper lifting / lowering operation timing pulley 47 is rotated through the lifting / lowering operation belt 55 and the lifting block connected to both ends of the lifting / lowering operation belt 55. 17 is moved up and down along the column 7. The lift block 17 is provided with the antenna 11 via the antenna mounting portion 191. As a result, the drive motor 59 moves the antenna 11 up and down.

  When the elevating block 17 is moved up and down, the swinging operation timing pulley 95 is rotated by the swinging operation belt 71 installed on the support column 7, and the rotation of the swinging operation timing pulley 95 is the first neck. This is transmitted to the second swinging operation gear 129 via the swinging operation gear 97. When the second swinging operation gear 129 is rotated, the first driving side operation amount adjusting timing pulley 131, the second driving side operation amount adjusting timing pulley 135, and the third driving side operation amount adjusting timing pulley 137 are used. The fourth driving side operation amount adjusting timing pulley 139 is also rotated.

  The rotation of the first drive side operation amount adjustment timing pulley 131, the second drive side operation amount adjustment timing pulley 135, the third drive side operation amount adjustment timing pulley 137, and the fourth drive side operation amount adjustment timing pulley 139. Is transmitted to the driven-side operation amount adjusting timing pulley rotating shaft 143 side via the operation amount adjusting timing belt 153. At that time, whether the operation amount adjustment timing belt 153 is wound and meshed with the first timing pulley pair 155, or is the operation amount adjustment timing belt 153 wound and meshed with the second timing pulley pair 157? Depending on whether the operation amount adjustment timing belt 153 is wound and meshed with the third timing pulley pair 159 or whether the operation amount adjustment timing belt 153 is wound and meshed with the fourth timing pulley pair 161, Different tooth ratios can be selected. Thereby, the amount of swing motion of the antenna 11 with respect to the lifting / lowering motion of the antenna 11 is adjusted.

  The rotation of the driven pulley amount adjusting timing pulley rotation shaft 143 is transmitted to the swing motion transmission timing pulley 171 via the worm gear 163, the worm wheel 165 and the gear shaft 169. Then, the rotation of the swing motion transmission timing pulley 171 is transmitted to the swing motion timing pulley 177 via the swing motion transmission timing belt 179. By the rotation of the timing pulley 177 for the swing motion, the antenna mounting portion 191 and thus the antenna 11 are swung in synchronization with the lifting / lowering motion. The antenna 11 is always directed to the measurement object 15 by the swinging motion synchronized with the raising / lowering motion of the antenna 11.

When the swing motion selection gear 107 is moved so that the swing motion selection gear 107 does not mesh with the first swing motion gear 97 and the second swing motion gear 129, The swinging motion is not synchronized with the lifting / lowering motion of the antenna 11.
At this time, the angle of the antenna 11 can be adjusted by manually rotating the handle 162 to rotate the driven-side operation amount adjusting timing pulley rotating shaft 143.

Next, the case where the gear ratio is changed will be described. First, the drive side operation amount adjustment timing pulley support shaft fixing screws 141 and 141 are loosened, and the operation amount adjustment timing pulley moving grooves 123 and 123 are moved to the drive side. The operation amount adjusting timing pulley support shaft 125 is allowed to move. In this state, the drive-side operation amount adjustment timing pulley support shaft 125, the first drive-side operation amount adjustment timing pulley 131, the second drive-side operation amount adjustment timing pulley 135, and the third drive-side operation amount adjustment. The timing pulley 137 and the fourth drive side operation amount adjusting timing pulley 139 are integrally moved to the upper side in FIG. 6 to obtain a state as shown in FIG. In this state, the operation amount adjustment timing belt 153 is loosened, and the operation amount adjustment timing belt 153 can be switched. Therefore, the first timing pulley pair 155, the second timing pulley pair 157, and the third timing pulley pair 159 and the fourth timing pulley pair 161 are selectively wound around the operation amount adjusting timing belt 153 to select a desired gear ratio.
Thereafter, the driving amount adjusting timing pulley support shaft 125 is appropriately moved downward in FIG. 10 along the operating amount adjusting timing pulley moving grooves 123, 123 to move the driving amount adjusting timing belt 153. The drive side operation amount adjustment timing pulley support shaft fixing screws 141 and 141 are tightened to adjust the drive side operation amount adjustment timing pulley support shaft 125 and the first drive side operation amount adjustment timing. The pulley 131, the second driving side operation amount adjusting timing pulley 135, the third driving side operation amount adjusting timing pulley 137, and the fourth driving side operation amount adjusting timing pulley 139 are fixed.

Next, a case where the synchronization of the lifting / lowering operation of the antenna 11 and the swinging operation is canceled will be described.
First, the oscillating motion selection gear support shaft fixing screws 109 and 109 are loosened to release the sway motion selection gear support shaft 105 from being fixed.
Next, the rotation shaft 115 and the rotation restricting member 119 are loosened so that the rotation of the swing motion selection gear support shaft fixing member 113 is allowed, and the swing motion selection gear support shaft fixing member 113 is set. Is rotated clockwise in FIG.

Next, the above-mentioned swing motion selection gear support shaft 105 is moved along the swing motion selection grooves 103, 103 to the right end of the swing motion selection grooves 103, 103 in FIG. The operation selection gear 107 is not engaged with the first swing operation gear 97 and the second swing operation gear 129.
Next, the swing motion selection gear support shaft fixing member 113 is rotated counterclockwise in FIG. 8, and the swing motion selection gear support shaft fixing member 113 is rotated by the swing motion selection gear support shaft. A state in which the rotation shaft 115 and the rotation regulating member 119 are rotated, and the rotation of the swing motion selection gear support shaft fixing member 113 is regulated. To do.

Finally, the swing motion selection gear support shaft fixing screws 109 and 109 are tightened to fix the swing motion selection gear support shaft 105.
When the lifting / lowering operation and the swinging motion of the antenna 11 are synchronized again, the swinging motion selection gear support shaft fixing screws 109 and 109, the rotational shaft 115, and the rotational restricting member 119 are loosened, and the neck The swing motion selection gear support shaft 105 is moved along the swing motion selection grooves 103 and 103 to the left end portion of the swing motion selection grooves 103 and 103 in FIG. At that time, the swing motion selection gear support shaft fixing member 113 is urged and rotated by the swing motion selection gear support shaft 105, and the swing motion selection gear support shaft 105 is selected by the swing motion selection. When the groove 103, 103 is moved to the left end in FIG. 8, the swing motion selection gear support shaft fixing member 113 is located at the upper end of the swing motion selection gear support shaft 105 in FIG. It will be in the state contact | abutted to. Then, the swing motion selection gear support shaft fixing screws 109, 109, the rotation shaft 115, and the rotation restricting member 119 are tightened, and the swing motion selection gear support shaft 105 and the swing motion selection gear support shaft are supported. The fixing member 113 is fixed.

Next, the case where the antenna 11 is switched between a state corresponding to horizontal polarization and a state corresponding to vertical polarization will be described.
First, when the antenna 11 is in a state corresponding to vertical polarization, driving air is supplied to the air cylinder 199 from a compressor (air tank) (not shown) via the lower port 204. As a result, as shown in FIG. 12 (a), the piston rod 200 of the air cylinder 199 is moved upward in FIG. 12 (a), and the antenna 11 is rotated in the clockwise direction in FIG. 12 (a). The state corresponding to vertical polarization is obtained.
In this case, exhaust is performed via the upper port 206.
When the antenna 11 is in a state corresponding to horizontal polarization, driving air is supplied to the air cylinder 199 from an unillustrated compressor (air tank) via the upper port 206. As a result, as shown in FIG. 12B, the piston rod 200 of the air cylinder 199 is moved downward in FIG. 12B, and the antenna 11 is rotated counterclockwise in FIG. 12B. Rotated to a state corresponding to horizontal polarization.
In this case, exhaust is performed via the lower port 204.

Next, the effect of the electromagnetic wave measuring apparatus 1 according to this embodiment will be described.
First, when the lifting block 17 is lifted and lowered by the lifting and lowering mechanism unit 9, the antenna 11 is swung by the swinging mechanism unit 13 in synchronization with the lifting and lowering operation. In this case, since a single drive motor 59 is sufficient as a drive source, the configuration can be simplified and the cost can be reduced.
Further, since no electrical parts are used in the swinging mechanism 13, it is not necessary to take measures against noise in the swinging mechanism 13, thereby reducing costs. Can do.

  Whether the operation amount adjustment timing belt 153 is wound and meshed with the first timing pulley pair 155, or the operation amount adjustment timing belt 153 is wound and meshed with the second timing pulley pair 157, Depending on whether the operation timing adjustment timing belt 153 is wound / engaged with the third timing pulley pair 159 or whether the operation amount adjustment timing belt 153 is wound / engaged with the fourth timing pulley pair 161, Different tooth ratios can be arbitrarily selected, whereby the swinging motion amount with respect to the lifting / lowering motion amount of the antenna 11 can be adjusted, and the distance between the measured object 15 and the support column 7 can be easily changed. It can correspond to.

In addition, the selection mechanism 121 can arbitrarily and easily switch the synchronization / asynchronization between the lifting / lowering operation and the swinging operation of the antenna 11.
Accordingly, the antenna 11 can be moved up and down while keeping the angle of the antenna 11 constant, and the angle of the antenna 11 can be adjusted by manually rotating the handle 62 at that time.
The antenna 11 can be rotated by the air cylinder 199 to switch between a state corresponding to horizontal polarization and a state corresponding to vertical polarization.

The present invention is not limited to the one embodiment.
For example, in the case of the one embodiment, four types of tooth ratios are prepared and arbitrarily selected, but may be three types or less and five or more types.
In the embodiment, the adjustment of the gear ratio is realized by a plurality of timing pulley pairs, but may be constituted by a plurality of gear pairs, a plurality of sprocket pairs, and the like.
In the above embodiment, the elevating block is moved up and down by the timing pulley / belt method. However, it is possible to move the block up and down by various methods such as a chain / sprocket method, a rack / gear method, and a linear guide method. It is done.
Further, in the case of the above-described embodiment, the case where the lifting block is moved up and down along the vertically installed support column has been described as an example. However, when the support column is inclined, the support column is horizontal. Cases of various trajectories are assumed.
It is also conceivable that the support is installed in the horizontal direction and the antenna is swung in the horizontal direction.
The other illustrated configurations are merely examples.

  The present invention relates to an electromagnetic wave measuring device that measures an electromagnetic wave emitted from an object to be measured such as various electric devices and various electronic devices, and in particular, moves an antenna along a track by a single drive motor. In addition, the present invention is suitable for an electromagnetic wave measuring apparatus used for, for example, an EMC (Electro Magnetic Compatibility) test. .

1 Electromagnetic wave measuring device 7 Prop (orbit)
9 Lifting mechanism (moving mechanism)
DESCRIPTION OF SYMBOLS 11 Antenna 13 Mechanism part for swinging operation 41 Lower side raising / lowering timing pulley (drive motor side rotary body)
47 Timing pulley for up / down movement (rotary body on the non-drive motor side)
55 Lifting belt (endless body)
59 drive motor 120 swing movement amount adjustment means 121 selection mechanism (synchronization release means)

Claims (7)

An antenna that is movably installed along the orbit and catches electromagnetic waves output from the object to be measured;
A drive motor;
A mechanism that moves the antenna along the trajectory by the driving force of the drive motor and swings the antenna in synchronization with the antenna to be directed toward the object to be measured;
An electromagnetic wave measuring apparatus comprising: The electromagnetic wave measuring device according to claim 1,
The electromagnetic wave measuring apparatus according to claim 1, wherein the mechanism portion is provided with a swing motion amount adjusting means for adjusting a swing motion amount with respect to the movement of the antenna. In the electromagnetic wave measuring device according to claim 1 or 2,
The electromagnetic wave measuring apparatus according to claim 1, wherein the mechanism portion is provided with a synchronization releasing means capable of releasing the synchronization of the swinging motion with respect to the movement of the antenna. In the electromagnetic wave measuring device according to any one of claims 1 to 3,
The mechanism section includes a moving mechanism section that moves the antenna by the rotation of the drive motor, and a swing operation mechanism section that swings the antenna in synchronization with the movement of the antenna. An electromagnetic wave measuring device characterized by the above. The electromagnetic wave measuring device according to claim 4,
The moving mechanism section includes the drive motor-side rotator, a counter-drive motor-side rotator that is separated from the drive motor-side rotator along the track, and a counter-drive with the drive motor-side rotator. An electromagnetic wave measuring apparatus comprising: an endless body wound around a motor-side rotating body and attached with the antenna. In the electromagnetic wave measuring device according to claim 4 or 5,
The swing motion mechanism section includes a plurality of pairs of rotating bodies, and adjusts the amount of swing motion for the movement of the antenna by selecting an arbitrary pair of rotating bodies. An electromagnetic wave measuring device. In the electromagnetic wave measurement side specifying device according to any one of claims 4 to 6,
The oscillating mechanism unit includes a selection mechanism unit that selects a relationship with the moving mechanism unit, and the selection mechanism unit cuts off the relationship with the moving mechanism unit, thereby preventing the movement of the antenna. An electromagnetic wave measuring apparatus characterized by releasing the synchronization of the swing motion.

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