JPH11350627A - Test apparatus transportation equipment in electric wave dark room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the structure of an electric wave dark room, to provide a transportation means for heavy apparatus, to reduce the burden and secure the safety in the preparation work of electric wave measurement, to enhance the electric wave absorbing characteristic in the structure of the electric wave dark room, and also to improve the space saving or the like. SOLUTION: This test apparatus transportation equipment is provided with a cross- link type elevator 3 for elevating or lowering at least a part of the floor surface 6 of a sealed electric wave dark room or the elevatable sealed floor surface 2. The test apparatus 1 carried in a preparation room 8 through a preparation room transportation door 10 is transferred to an electric wave dark room 5 by using the cross-link type elevator 3. The wall surface of the electric wave dark room 5 is stretchedly surrounded by an electric wave absorbing body 7 to shield the entire surface of the floor surface 6 of the electric wave dark room. In the inside of the electric wave dark room 5, an antenna 11 for measuring the electric wave is installed, and on a turntable 4 provided to a part of the electric wave dark room floor surface 6, a test table 12 for installing the test apparatus is installed. The turntable 4 is constituted so that the direction of the test table 12 can be changed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer apparatus for carrying test equipment such as measuring equipment to be tested in an anechoic chamber, equipment to be measured and their equipment, etc., into and out of an anechoic chamber. The present invention relates to a test equipment loading / unloading facility in an anechoic chamber including means, and more particularly to a test equipment loading / unloading facility in an anechoic chamber capable of improving the efficiency and safety of preparation work including loading / unloading work.

[0002]

2. Description of the Related Art FIG. 6 is a plan view showing a floor panel structure of an anechoic chamber disclosed in JP-A-56-85061.
FIG. 8 is an elevational view showing a structure of a cut-in portion of a radio wave absorber panel body of a device carrying-in / out path leading to an entrance / exit of an anechoic chamber of the conventional example. In these figures, 21 is an anechoic chamber,
22 is a radio wave absorption panel, 23 is an equipment loading / unloading port, 24 is a door, 25 is an equipment loading / unloading path, 26 is a rail, 27 is an electric trolley, 28 is a fluid pressure cylinder, 29 is a sliding door type door, and 30 is a first door. The radio wave absorbing panel body 31 is a second radio wave absorbing panel body.

In this prior art, the second radio wave absorbing panel body 31 is raised by a fluid pressure cylinder 28, and the first radio wave absorbing panel body 30 is inserted under the rail 26 by an electric trolley 27 along the rail 26. The device loading / unloading path 25 is opened. As a result, the EUT can be carried into the anechoic chamber 21 through the opened equipment entrance 23 of the hinged door 24.

However, the rail 26, the electric truck 27, the fluid pressure cylinder 28, the first radio wave absorbing panel 30, the second
The structure of the floor near the equipment loading / unloading path 25 becomes complicated because of the radio wave absorbing panel body 31 and the like, and there is a problem in terms of radio wave absorption characteristics, work safety, and space saving of the anechoic chamber 21. there were.

[0005] Further, the equipment loading / unloading port 23 is connected to the anechoic chamber 21.
Since it is composed of the hinged door 24 provided on the wall of the device, the continuity of the radio wave absorption panel 22 is lacking, and there is a problem from the viewpoint of radio wave absorption characteristics. There is also a possibility that the radio wave absorber near the carry-out path 25 may be destroyed.

Further, since there is no means for carrying in / out heavy equipment, there is a great deal of labor required for workers in carrying in / out equipment, and there is a problem from the viewpoint of safety. In addition, there was a risk that the equipment would be impacted.

In addition, the work of installing the test equipment carried into the anechoic chamber 21 on the test stand requires labor, and there is a problem from the viewpoint of safety, and the shock may be applied to the test equipment during the work. There was also.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned disadvantages of the prior art, and an object of the present invention is to simplify the structure of the floor of an anechoic chamber and to improve the work efficiency. It is an object of the present invention to improve the safety and radio wave absorption characteristics of the anechoic chamber and to save space in the anechoic chamber.

Another object of the present invention is to eliminate the need for a device entrance / exit port provided on the wall of the anechoic chamber, to ensure continuity of the radio wave absorption panel, to improve the radio wave absorption characteristics, and to improve the device. Is to prevent equipment destruction during loading and unloading.

Still another object is to provide a means for carrying in and out a heavy equipment, to reduce the work load and to ensure safety when carrying in and out the equipment, and to prevent an impact from being applied to the equipment during the work. It is to be.

In addition, there is no need to install the test equipment carried into the anechoic chamber on the test stand, thereby reducing the burden on the operator and ensuring safety, and preventing the equipment from being shocked during the work. It is to be.

[0012]

According to the present invention, there is provided a test equipment loading / unloading facility in an anechoic chamber, wherein the test equipment is loaded from below the anechoic chamber.

[0013] The equipment for loading / unloading test equipment in an anechoic chamber according to the present invention is characterized in that the test equipment is loaded using an elevator.

According to the present invention, there is provided a test equipment loading / unloading facility in an anechoic chamber, wherein the anechoic chamber has a shielded floor, and the elevator lifts and lowers at least a part of the shielded floor. It is.

The equipment for loading / unloading test equipment in an anechoic chamber according to the present invention is characterized by having a preparation space for installing the test equipment to be loaded at a position where the elevator supports the test equipment. .

The equipment for loading / unloading test equipment in an anechoic chamber according to the present invention is characterized in that the elevator moves up and down a test table on which the test equipment is installed.

The equipment for loading / unloading test equipment in an anechoic chamber according to the present invention is characterized in that the position at which the elevator supports the test equipment in the preparation space can be adjusted.

The equipment for loading / unloading test equipment in the anechoic chamber according to the present invention is characterized in that the position at which the elevator supports the test equipment in the anechoic chamber can be adjusted.

[0019] The test equipment loading / unloading facility for an anechoic chamber according to the present invention is characterized in that at least a part of the shield floor surface that moves up and down rotates.

The equipment for loading / unloading test equipment in an anechoic chamber according to the present invention is characterized in that the installation surface of the test stand rotates.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 Hereinafter, the present invention will be described based on embodiments shown in the drawings. The test equipment 1 according to the present invention is a measurement equipment to be used in an experiment in an anechoic chamber, a device to be measured to be tested, and equipment therefor.

As shown in FIGS. 1 and 2, the equipment for loading / unloading test equipment in the anechoic chamber according to the present embodiment includes a shield floor 2 that moves up and down, a cross-link type elevator 3, and a turntable 4.
Anechoic chamber 5, anechoic chamber floor 6, and radio wave absorber 7
And a preparation room 8, a preparation room floor 9, a preparation room carry-in / carry-out door 10, a measurement antenna 11, and a test stand 12.

As shown in FIG. 1, in the anechoic chamber 5, a radio wave absorber 7 is stretched around the wall surface, and the anechoic chamber floor 6 is shielded on one side. In the space of the anechoic chamber 5, a measurement antenna 11 for measuring an anechoic wave is installed. 12 are installed. The turntable 4 is structured to rotate so as to change the direction of the test table 12.

As shown in FIG. 1, the preparation room 8 is provided below the radio wave anechoic room 5. The preparation room loading / unloading door 10 for loading / unloading the equipment under test is provided on the wall surface of the preparation room 8. In addition, as shown in FIG. 2, the preparation room 8 is located at a position where the cross-link type elevator 3 supports the test device 1 (in the present embodiment, the shield floor surface 2 which moves up and down).
It becomes a preparation space for installing (FIG. 2A). Further, at the time of installation, the test equipment 1 is configured to be processed for assembling or improvement. FIG.
Although the preparation room 8 of the present embodiment has a wall surface as described above, the wall surface is not necessarily required.

As shown in FIG. 2, the cross-link type elevator 3 is
The shield floor 2 which is fixed so as to penetrate a part of the preparation room floor 9 and supports the ascending and descending shield floor 2 is located on the preparation room floor 9 or the anechoic chamber floor 6. (FIGS. 2 (a) and 2 (c)) so as to move between them. In addition, the shield floor 2 that moves up and down can be held at a desired height in the anechoic chamber 5 or the preparation chamber 8 (FIGS. 2B and 2D).

The present embodiment is configured as described above, and its operation will be described below. The worker, Figure 1
The test equipment 1 is carried into the preparation room 8 through the preparation room carry-in / out door 10.

The operator operates the cross-link type elevator 3 to hold the shield floor 2 to be raised and lowered so as to be at the same height as the preparation room floor 9 (FIG. 2A).

The operator installs the EUT 1 on the shield floor 2 that moves up and down (FIG. 2A). At this time, the operator can process the test device 1 for assembling or improving.

The operator operates the cross-link type elevator 3 to raise and hold the shield floor 2 to be raised and lowered until the shield floor 2 is at the same height as the floor 6 of the anechoic chamber (FIG. 2C). In this way, the EUT 1 is installed on the shield floor 2 that moves up and down, is lifted by the cross-link type elevator 3, and is transferred into the anechoic chamber 5. The shield floor 2 that moves up and down is integrated with the floor 6 of the anechoic chamber on the same plane. Thereby, the floor surface of the anechoic chamber 5 becomes an integral shield surface.

The operator moves the EUT 1 on the shield floor 2 that moves up and down to a predetermined position (FIG. 2C). When the device under test 1 is the device under test, the operator places the device under test on the test table 12 on the turntable 4.
Since the turntable 4 rotates, the operator can freely change the direction of the device to be measured and perform measurement.

When the worker carries out the test equipment 1,
Acts in reverse. The worker installs the EUT 1 on the shield floor 2 that moves up and down at the same height as the floor 6 of the anechoic chamber (FIG. 2).
(C)), the cross-link type elevator 3 is operated and lowered until the shield floor 2 to be lifted and lowered becomes the same height as the floor 9 of the preparation room (FIG. 2 (a)). The test equipment 1 is carried out of the preparation room 8 through the preparation room carry-in / out door 10 of FIG. Before unloading, the test equipment 1 can be disassembled in the preparation room 8 for easy unloading.

Although an example is shown in which the shield floor 2 that moves up and down is held at the same height as the floor 9 of the preparation room (FIG. 2A), the worker installs, removes, and assembles. Alternatively, it can be held at a height that facilitates work such as processing (FIG. 2B).

Similarly, an example was shown in which the shield floor 2 ascending and descending was held at the same height as the floor 6 of the anechoic chamber (FIG. 2 (c)). Can be held at a height that facilitates
(D)).

As shown in FIG. 3, a hydraulic elevator 13 can be used as the elevator. Also in this case, the same effect can be obtained by the same configuration and operation as when the cross-link type elevator 3 is used.

In this embodiment, the shield floor 2 moves up and down a part of the floor 6 of the anechoic chamber. However, the entire floor 6 of the anechoic chamber may be moved up and down. Thereby, contact between the EUT 1 and the ceiling of the preparation room 8 or the floor 6 of the anechoic chamber at the time of elevating can be avoided, and the safety of work can be further improved.

In this embodiment, the EUT 1 is transferred from the anechoic chamber 5 to the preparation room 8 and immediately carried out of the preparation room 8. , And then transferred to the anechoic chamber 5 again to perform radio wave measurement again.

Embodiment 2 As shown in FIGS. 4 and 5, the test equipment loading / unloading equipment of the anechoic chamber according to the present embodiment includes a cross-link type elevator 3, an anechoic chamber 5, and an anechoic chamber floor 6.
And a radio wave absorber 7, a preparation room 8, a preparation room floor 9, a preparation room carry-in / carry-out door 10, a measurement antenna 11, a test stand 12, and a shield turntable 14 that moves up and down. . In other words, a shield turntable 14 that moves up and down is provided in place of the shield floor 2 and the turntable 4 that move up and down in the first embodiment.

As shown in FIG. 4, the anechoic chamber 5 has the same configuration as that of the first embodiment except that the turntable 4 is not provided and is provided on a part of the floor 6 of the anechoic chamber.

As shown in FIG. 4, the preparation room 8 has the same configuration as in the first embodiment.

As shown in FIG. 4, the ascending and descending shield turntable 14 is shielded in the same manner as the ascending and descending shield floor surface 2 of the first embodiment. A test table 12 on which a device to be measured is installed is provided. The shield turntable 14 that moves up and down has a structure that rotates so that the direction of the test table 12 can be changed.

As shown in FIG. 5, the cross-link type elevator 3
Instead of the shield floor 2 that moves up and down in the first embodiment, the shield turntable 14 that moves up and down is supported. The ascending and descending shield turntable 14 is held so as to be positioned on the floor 9 of the preparation room or the floor 6 of the anechoic chamber (FIG. 5B).
(E)), it is configured to move between them. Further, the installation surface on the test stand 12 installed on the ascending and descending shield turntable 14 is placed in the anechoic chamber 5 or the preparation room 8.
(FIGS. 5 (a), (c), and (d)).
(F)). In the present embodiment, the position at which the cross-link type elevator 3 supports the EUT 1 is the installation surface on the test table 12.

The present embodiment is configured as described above, and its operation will be described below. The operator carries the test equipment 1 into the preparation room 8 as in the first embodiment.

The operator operates the cross-link type elevator 3 so that the shield turntable 14 ascending and descending is at the same height as the floor 9 of the preparation room (FIG. 5B), or on the test table 12. The installation surface is held at a desired height in the preparation room 8 (FIGS. 5A and 5C).

The operator installs the EUT 1 on the installation surface on the test table 12 (FIGS. 5A, 5B, and 5C). At that time,
The operator can process the test device 1 for assembling or improving. In particular, when the device under test 1 is the device under test, the radio wave measurement can be performed as it is after the device under test installed on the test table 12 is carried in, so that the preparation work in the anechoic chamber 5 is reduced. Therefore, the device to be measured is installed in a state where radio waves can be measured.

The operator operates the cross-link type elevator 3 to raise and hold the shield floor 2 to be raised and lowered until the shield floor 2 is at the same height as the floor 6 of the anechoic chamber (FIG. 5 (e)).
In this way, the EUT 1 is placed on the installation surface of the test stand 12 on the ascending and descending shield turntable 14, lifted by the cross-link type elevator 3, and transferred into the anechoic chamber 5. The shield turntable 14 that moves up and down is integrated on the same plane as the floor 6 of the anechoic chamber. Thereby, the floor surface of the anechoic chamber 5 becomes an integral shield surface. The cross-link type elevator 3 can be operated, raised, and held so that the installation surface on the test stand 12 is located at a desired height of the anechoic chamber 5 (FIG. 5D).
(F)). Thereby, the workability when the test equipment 1 is moved from the installation surface of the test stand 12 to another position is improved.

When the device under test 1 is a device under test,
Test stand 1 on shield turntable 14 already elevated
2 (FIG. 5 (e)), the operator does not need to move the EUT 1. Since the shield turntable 14 that moves up and down rotates, the operator can freely change the direction of the device to be measured and perform measurement.

When the operator carries out the test equipment 1,
Acts in reverse. The operator operates the cross-link type elevator 3 in a state where the EUT 1 is installed on the installation surface of the test table 12 on the shield turntable 14 on which the EUT 1 moves up and down (FIG. 5E). The turntable 14 is lowered until it becomes the same height as the floor 9 of the preparation room (FIG. 5B), or the installation surface on the test stand 12 is positioned at the desired height of the preparation room 8 (FIG. 5B). 5 (a) (c)), the test equipment 1 on the test table 12 through the loading / unloading door 10 of the preparation room shown in FIG.
Is carried out of the preparation room 8. Similarly to the first embodiment, the test equipment 1 can be dismantled.

As in the first embodiment, a hydraulic elevator 13 can be used as the elevator. Even in this case,
The same effect can be obtained by the same configuration and operation as when the cross-link type elevator 3 is used.

In the present embodiment, the shield turntable 14 moves up and down a part of the floor 6 of the anechoic chamber. However, the whole floor 6 of the anechoic chamber moves up and down, and a part or all of the floor 6 rotates. You can also. Thereby, contact between the EUT 1 and the ceiling of the preparation room 8 or the floor 6 of the anechoic chamber at the time of elevating can be avoided, and the safety of work can be further improved.

[0050]

According to the present invention, since the EUT is carried in from below the anechoic chamber, it is not necessary to provide a device loading / unloading path on the floor of the anechoic chamber, and the floor structure of the anechoic chamber can be simplified. . As a result, the floor of the anechoic chamber becomes an integral horizontal plane, thereby improving operational safety and saving space in the anechoic chamber. In addition, since the EUT is loaded from below the anechoic chamber, there is no need to provide a device loading / unloading port on the wall of the anechoic chamber. Improvements can be made in terms of characteristics, and equipment destruction can be prevented when equipment is loaded or unloaded.

In the present invention, the test equipment is carried in by using the elevator, so that it is carried to the vicinity of the test table in the anechoic chamber, and the labor of the operator when carrying heavy equipment is greatly reduced. Improvements can be made from the viewpoint of work safety. In addition, it is possible to prevent an impact from being applied to the device.

In the present invention, the anechoic chamber has a shielded shield floor, and the elevator lifts and lowers at least a part of the shield floor, so that the shield floor of the anechoic chamber becomes an integral horizontal plane, Improvements can be made from the viewpoints of radio wave absorption characteristics and shield characteristics. In addition, the work of reattaching the shield surface becomes unnecessary, and the preparation work can be simplified.

In the present invention, since the elevator has a preparation space at the position where the elevator supports the EUT, the assembling and processing of the EUT are performed when the EUT is installed. Etc. can be prepared. Further, since the elevator is used, it is possible to carry in the assembled or processed state without applying an impact to the test equipment. Therefore, the preparation work such as the assembly of the test equipment in the anechoic chamber is reduced. Further, when the test device is processed for improvement or the like and the re-test is repeated, the labor for transferring between the anechoic chamber and the preparation room is reduced, so that the processing operation can be performed efficiently. Therefore, the efficiency of the entire radio wave test can be improved.

In the present invention, since the elevator raises and lowers the test table on which the test equipment is installed, it is possible to perform a radio wave test without changing the equipment to be measured installed on the test table in a loaded state. Therefore, there is no need to move the device to be measured in the anechoic chamber, the burden on the operator can be reduced and safety can be ensured, and the device can be prevented from being impacted during the operation. Also, when preparing for assembling or processing of the device to be measured in the preparation space, the radio wave test can be performed without altering the state after carrying in, so all the preparation work can be performed in the preparation space and the anechoic chamber Preparation work is not required. Further, space saving of the anechoic chamber can be achieved.

In the present invention, the position for supporting the EUT in the preparation space can be adjusted, so that the work load when installing and removing the EUT is reduced, and safety is ensured. In particular, when raising and lowering the test table, by adjusting the installation surface of the test table to a position lower than the original position,
When installing or removing the EUT, it is not necessary to lift the EUT to the height of the test bench or lower it from the height of the test bench. Very easy.

In the present invention, the position for supporting the EUT can be adjusted in the anechoic chamber, so that the work load when installing and removing the EUT brought in is reduced, and safety is ensured. When the test table is raised and lowered, the height of the device to be measured during the radio wave test can be adjusted by using a lift.

In the present invention, since at least a part of the shield floor that rises and falls rotates, the orientation of the EUT at the time of installation or removal of the EUT in the preparation space or the anechoic chamber becomes free, and Burden is reduced, and safety is improved.
In addition, it is possible to transfer the device to be measured to the anechoic chamber without changing the state of the device to be measured installed on the test table, change the direction, and perform the radio wave test. Thereby, the orientation of the device to be measured at the time of installation in the preparation space is free, and the work of re-installation for changing the direction of the device to be measured in the anechoic chamber is not required. Further, space saving of the anechoic chamber can be achieved.

In the present invention, since the installation surface of the test table rotates, it is possible to obtain the same effect as when at least a part of the ascending and descending shield floor rotates.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating the structure and operation of a test equipment loading / unloading facility in an anechoic chamber according to Embodiment 1 of the present invention.

FIG. 2 is a cross-sectional view illustrating the structure and operation of a test equipment loading / unloading facility in an anechoic chamber using a cross-link type elevator according to Embodiment 1 of the present invention.

FIG. 3 is a cross-sectional view illustrating the structure and operation of a test device loading / unloading facility in an anechoic chamber using the hydraulic elevator according to Embodiment 1 of the present invention.

FIG. 4 is a perspective view illustrating the structure and operation of a test equipment loading / unloading facility in an anechoic chamber according to Embodiment 2 of the present invention.

FIG. 5 is a cross-sectional view illustrating the structure and operation of a test equipment loading / unloading facility in an anechoic chamber according to Embodiment 2 of the present invention.

FIG. 6 is a plan view showing a floor panel structure of a conventional anechoic chamber.

FIG. 7 is an elevational view showing a structure of a digging portion of a floor loading / unloading port according to the related art.

FIG. 8 is an elevational view showing a structure of a digging portion of a floor loading / unloading port according to the related art.

[Explanation of symbols]

1. Equipment under test, 2. Shield floor that goes up and down, 3. Cross-link type elevator, 4. Turntable, 5. Anechoic chamber, 6.
Floor of anechoic chamber, 7 Electromagnetic absorber, 8 Preparation room, 9 Preparation room floor, 10 Preparation room loading / unloading door, 11 Measurement antenna, 12 test stand, 13 Fluid pressure type elevator, 14 Shield turntable to go up and down, 21 Anechoic chamber, 22
Radio wave absorption panel, 23 Equipment loading / unloading port, 24 Door door, 25 Equipment loading / unloading path, 26 Rail, 27 Electric trolley, 28 Fluid pressure cylinder, 29 Sliding door type door, 3
0 First radio wave absorbing panel, 31 Second radio wave absorbing panel.

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Katsumi Toyama 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Mitsui Electric Co., Ltd. (72) Shuji Urasaki 2-3-2 Marunouchi, Chiyoda-ku, Tokyo Rishi Electric Co., Ltd.

Claims (9)

[Claims] An equipment for loading / unloading test equipment in an anechoic chamber, wherein the equipment is loaded from below the anechoic chamber. 2. The equipment for loading / unloading test equipment in an anechoic chamber according to claim 1, wherein the equipment for loading / unloading test equipment in the anechoic chamber loads the test equipment using an elevator. 3. The test equipment for an anechoic chamber according to claim 2, wherein the anechoic chamber has a shielded shield floor, and the elevator lifts and lowers at least a part of the shield floor. Loading / unloading equipment. 4. The test equipment loading / unloading facility in the anechoic chamber has a preparation space for installing the test equipment to be carried in at a position where the elevator supports the test equipment. Equipment for loading and unloading test equipment in an anechoic chamber. 5. The equipment for loading / unloading test equipment in an anechoic chamber according to claim 2, wherein the elevator raises and lowers a test table on which the test equipment is installed. 6. The equipment for loading / unloading test equipment in an anechoic chamber according to claim 4, wherein the elevator can adjust a position for supporting the test equipment in the preparation space. 7. The equipment for loading / unloading test equipment in an anechoic chamber according to claim 2, wherein the elevator can adjust a position for supporting the test equipment in the anechoic chamber. 8. The equipment for loading / unloading test equipment in an anechoic chamber according to claim 3, wherein at least a part of the ascending and descending shield floor rotates. 9. The equipment for loading / unloading test equipment in an anechoic chamber according to claim 5, wherein an installation surface of the test stand is rotated.