KR101866134B1 - Sound sensor arrangement adjuster - Google Patents

Sound sensor arrangement adjuster Download PDF

Info

Publication number
KR101866134B1
KR101866134B1 KR1020170055166A KR20170055166A KR101866134B1 KR 101866134 B1 KR101866134 B1 KR 101866134B1 KR 1020170055166 A KR1020170055166 A KR 1020170055166A KR 20170055166 A KR20170055166 A KR 20170055166A KR 101866134 B1 KR101866134 B1 KR 101866134B1
Authority
KR
South Korea
Prior art keywords
opening
closing element
frame
vertical frames
frame portion
Prior art date
Application number
KR1020170055166A
Other languages
Korean (ko)
Inventor
이동우
이상훈
문귀원
Original Assignee
한국항공우주연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 한국항공우주연구원 filed Critical 한국항공우주연구원
Priority to KR1020170055166A priority Critical patent/KR101866134B1/en
Application granted granted Critical
Publication of KR101866134B1 publication Critical patent/KR101866134B1/en

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/16Elements for restraining, or preventing the movement of, parts, e.g. for zeroising
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • G01M7/02Vibration-testing by means of a shake table
    • G01M7/025Measuring arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

According to an embodiment of the present invention, a sensor arrangement adjuster comprises: a frame unit having a plurality of vertical frames arranged in the shape of surrounding an object; and a support unit fixing a position of the frame unit. Moreover, at least one sensor is individually arranged in the vertical frames.

Description

TECHNICAL FIELD [0001] The present invention relates to a sound sensor array adjusting device,

 An acoustic sensor array adjusting device is disclosed. Specifically, there is disclosed an acoustic sensor arrangement adjusting apparatus capable of raising or lowering the positions of a plurality of acoustic sensors with respect to a target object so as to optimize the arrangement of acoustic sensors for acoustic noise testing on a target object.

Acoustic sensors for acoustic noise testing of satellites or launch vehicles perform acoustic tests in independent environments such as vacuum or high pressure.

Specifically, the satellite or launch vehicle is basically large in size, so it is located in a laboratory that constitutes an independent environment such as a hole or a high pressure, and acoustic sensors are disposed around the laboratory to conduct an experiment. Because the laboratory is sealed during the acoustic test and the laboratory is typically filled with a specific type of gas, such as nitrogen, the researchers in charge of the experiment collect the results of the experiment outside the laboratory.

The acoustic sensors used in these experiments are fixedly mounted on a tripod shaped stand with three legs.

Once the acoustic sensors are installed, the researchers must move into the laboratory and move their positions. However, additional costs may be incurred to move the position of the acoustic sensor, since researchers have to change the air in the laboratory to the outside air in order to enter the laboratory during the experiment.

A description of a method of arranging acoustic sensors is disclosed in Korean Patent Laid-Open No. 10-2005-0017196 filed on August 11, 2003, entitled " Method of Arranging Surfaces of Array Acoustic Sensors ".

An object according to an embodiment is to provide an acoustic sensor arrangement adjusting device which can be operated by looking at a camera installed in a laboratory in a sound control control room.

Another object of the present invention is to provide an acoustic sensor arrangement adjusting device that enables rotation and height adjustment of a sound sensor in a direction or a position desired by a user.

Another object of the present invention is to provide an acoustic sensor arrangement adjusting apparatus capable of solving the difficulty of sensor fixing caused by height of an object to be measured.

Another object of the present invention is to provide an acoustic sensor arrangement adjusting device capable of securing the structural stability of an acoustic sensor and reducing installation space.

Another object of the present invention is to provide an acoustic sensor arrangement adjusting device capable of measuring and controlling an appropriate amount of acoustic noise by rotating a support portion in a desired direction using an "

Another object of the present invention is to provide an acoustic sensor arrangement adjusting device having a structure in which the arrangement and removal of a target object are easy.

Another object of the present invention is to provide an acoustic sensor arrangement adjusting apparatus which is easy to install and move.

Another object according to an embodiment is to provide an acoustic sensor arrangement adjuster capable of preventing overload of the sensor or selectively operating each acoustic sensor.

According to an aspect of the present invention, there is provided a sensor array adjusting apparatus including a frame section including a plurality of vertical frames arranged in a shape surrounding an object, and a support section for fixing the position of the frame section, At least one sensor may be disposed in each of the vertical frames.

Further, the support portion includes an upper member disposed on the upper portion of the frame portion, and the upper member and the frame portion are connected to each other, so that power applied to the upper member can be transmitted to the frame portion.

The supporting member may further include a height adjusting member having one end connected to the upper member and the other end connected to a ceiling or a structure. The height adjusting member may be extended or contracted to provide a rising / And the upper member can transmit the ascending / descending power to the frame portion.

The supporting member may further include a rotating member disposed between the upper member and the height adjusting member, wherein the rotating member rotates the upper member with the height adjusting member as a rotation axis, To the frame unit.

The frame portion may further include an open / close frame connecting a plurality of vertical frames, and the open / close frame may include a first opening and closing element having a shape of a part around the support portion, a second opening and closing element having a second portion around the support portion, Closing element, and a hinge element that connects one end of the first opening / closing element and one end of the second opening / closing element, and the hinge element is connected to the other end of the first opening / closing element and the other end of the second opening / Closing element or one end of the second opening / closing element so that the other end of the first opening / closing element and the other end of the second opening / Or the other end of the second opening / closing element.

Further, the support portion and the frame portion are spaced from each other, and the support portion or the frame portion includes a clamping member, and the clamping member can detach the frame portion and the support portion.

In addition, the positions of the plurality of vertical frames may be selectively moved so that the distance between adjacent vertical frames is changed, so that the object is drawn in between the frames, or the distance between the facing vertical frames is increased or decreased, The total volume occupied can be increased or decreased.

In addition, the sensor may be an acoustic sensor that converts the motion of the particle by the acoustic wave into an electrical signal to detect it.

According to the acoustic sensor arrangement adjusting apparatus according to the embodiment, there is provided an acoustic sensor arrangement adjusting apparatus capable of viewing and operating a camera installed in a laboratory in a sound control control room.

In addition, according to the acoustic sensor arrangement adjusting apparatus according to an embodiment, there is provided an acoustic sensor arrangement adjusting apparatus which enables rotation and height adjustment of a sound sensor in a direction or a position desired by a user.

In addition, according to the acoustic sensor arrangement adjusting apparatus according to an embodiment, there is provided an acoustic sensor arrangement adjusting apparatus capable of solving the difficulty of sensor fixing caused by height of an object to be measured.

In addition, according to the acoustic sensor arrangement adjusting apparatus according to an embodiment, there is provided an acoustic sensor arrangement adjusting apparatus capable of securing structural stability of an acoustic sensor and reducing installation space.

In addition, according to the acoustic sensor arrangement adjusting apparatus according to the embodiment, an acoustic sensor arrangement adjusting apparatus capable of measuring and controlling an appropriate amount of acoustic noise is provided by rotating the support portion in a desired direction by using an "

Further, according to the acoustic sensor arrangement adjusting apparatus according to the embodiment, there is provided an acoustic sensor arrangement adjusting apparatus having a structure in which the arrangement and removal of the object can be easily performed.

Further, according to the acoustic sensor arrangement adjusting apparatus according to an embodiment, there is provided an acoustic sensor arrangement adjusting apparatus which is easy to install and move.

Further, according to the acoustic sensor arrangement adjusting apparatus according to the embodiment, there is provided an acoustic sensor arrangement adjusting apparatus capable of preventing overload of the sensor or selectively operating each acoustic sensor.

1 is a perspective view of an acoustic sensor arrangement adjusting apparatus according to an embodiment.
2 is a front view of an acoustic sensor arrangement adjusting apparatus according to an embodiment.
3 shows driving of the acoustic sensor arrangement adjusting apparatus according to one embodiment.

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

FIG. 1 is a perspective view of an acoustic sensor arrangement adjusting apparatus 100 according to an embodiment, and FIG. 2 is a front view of an acoustic sensor arrangement adjusting apparatus 100 according to an embodiment. 3A to 3F illustrate driving of the acoustic sensor arrangement adjusting apparatus 100 according to an embodiment. Specifically, FIGS. 3A and 3B illustrate an operation of the acoustic sensor arrangement adjusting apparatus 100 according to an embodiment, And the opening / closing frame 114 of the unit 110 is opened.

1 to 3B, a sensor array adjusting apparatus 100 according to an embodiment includes a frame portion 110 and a support portion 120. [

The frame part 110 may include a plurality of vertical frames 112 arranged to surround the object O and an open and close frame 114 for fixing the vertical frame 112 on the upper part of the vertical frame 112 .

The frame portion 110 may be positioned below the support portion 120 and away from the support portion 120.

A plurality of vertical frames 112 may be provided with sensors 1122.

For example, the sensor 1122 may be an acoustic sensor that converts the movement of particles by an acoustic wave into an electrical signal, and may include at least one or more sensors in each vertical frame 112. If the vertical frame 112 is provided with a plurality of sensors, the respective sensors may be spaced apart from each other.

The plurality of vertical frames 112 may be spaced apart from each other on the opening and closing frame 114 and the opening and closing frame 114 may adjust the arrangement of the plurality of vertical frames 112 in various ways.

The opening and closing frame 114 according to one embodiment includes a first opening / closing element 1142 having a part of a shape corresponding to the shape of the periphery of the supporting part 120, a part of a shape corresponding to the shape of the periphery of the supporting part 120 Closing element 1144 and a hinge element 1146 rotatably connected to one end of the first opening / closing element and one end of the second opening / closing element.

The description of the open / close frame 114 will be described in more detail below with reference to Figs. 3A to 3F.

The open / close frame according to another embodiment can move the position of the vertical frame 112. For example, the open / close frame and the vertical frame 112 may be connected in the same manner as a curtain, so that the vertical frame 112 may be moved along the periphery of the opening / closing frame section, and the vertical frame 112 and the opening / So that the open frame can move the vertical frame 112 in such a manner that the vertical frame 112 is lifted upward or is pushed away from the center or the angle of the vertical frame 112 is changed. In addition, the open / close frame according to another embodiment may be provided at a portion other than the upper portion of the vertical frame 112.

The supporting portion 120 can fix the position of the frame portion 110.

Specifically, when the frame part 110 is disposed below the support part 120, the support part 120 and the frame part 110 can be fastened and fixed to each other. Since the supporting part 120 according to one embodiment is connected to the ceiling or the structure, when the frame part 110 and the supporting part 120 are fastened and fixed to each other, the supporting part 120 fixes the position of the frame part 110 .

The supporting portion 120 includes an upper member 122 disposed at an upper portion of the frame portion 110, a height adjusting member 124 having one end connected to the upper member 122 and the other end connected to a ceiling or an external structure, And a rotating member 126 disposed between the upper member 122 and the height adjusting member 124 to rotate the upper member 122 about the height adjusting member 124 as a central axis.

In addition, the supporting portion 120 or the frame portion 110 may include a clamping member 132 capable of detachably attaching each other.

For example, the clamping member 132 may be provided on the upper member 122 of the support 120 and may include pivoting hooks. The hooks can be pivoted on the support portion 120 and hooked on the opening and closing frame 114 of the frame portion 110. [

The upper member 122 and the frame portion 110 are connected to each other through the clamping member 132 so that the power applied to the upper member 122 is transmitted to the frame portion 110. [

The height adjusting member 124 is expanded and contracted to provide upward and downward power to the upper member 122 and the rotating member 126 is rotated about the height adjusting member 124 to provide rotational power to the upper member 122 can do.

Specifically, the height adjusting member 124 may be formed of a plurality of tubes having different diameters, and the plurality of tubes may be arranged so that a part thereof overlaps with each other, and the overlapped portions may be increased or decreased by moving the tubes by external power . The length of the height adjusting member 124 can be shortened when the pipe is moved so that the overlapping portions of the plurality of pipes are increased and the length of the height adjusting member 124 is lengthened when the pipe is moved so that the overlapped portions of the plurality of pipes are reduced .

The distance between the top member 122 and the ceiling or the external structure connected to one end of the height adjusting member 124 may be changed in accordance with the change in the length of the height adjusting member 124. [ That is, the position (height) of the upper member 122 can be changed according to the change in the length of the height adjusting member 124, and the frame member 110 fastened and fixed to the upper member 122 through the clamping member 132, Can be raised and lowered together with the upper member 122.

3 shows driving of the acoustic sensor arrangement adjusting apparatus 100 according to an embodiment.

Hereinafter, a method of driving the sensor array adjusting apparatus 100 according to one embodiment will be described in detail with reference to FIGS. 3A to 3F.

3A shows a state in which the open / close frame 114 of the frame portion 110 of the acoustic sensor arrangement adjusting apparatus 100 according to the embodiment is opened.

Referring to FIG. 3A, the frame portion 110 and the support portion 120 may be provided apart from each other, and the clamping member 132 may be provided with the hooks raised. Also, the opening and closing frame 114 may be provided in an opened state.

For example, the frame portion 110 may be placed on the ground.

3B shows a state in which the first opening / closing element 1142 and the second opening / closing element 1144 of the opening / closing frame 114 of the acoustic sensor arrangement adjusting apparatus 100 according to the embodiment are opened, 112). ≪ / RTI >

3B, the first opening / closing element 1142 and the second opening / closing element 1144 are pivoted about the hinge element 1146 to open each other, that is, the first opening / closing element 1142 and the second opening / The object object O can be disposed in a space surrounded by the vertical frames 112 through the open space between the vertical frames 1144.

3C shows a state in which the first opening and closing element 1142 and the second opening and closing element 1144 are in contact with each other by rotating the hinge element 1146 of the acoustic sensor arrangement adjusting apparatus 100 according to an embodiment.

3C, the hinge element 1146 is connected to the other end of the first opening / closing element 1142 connected to the hinge element 1146 and the second opening / closing element 1144 connected to the hinge element 1146 It is possible to rotate one end of the first opening / closing element 1142 and one end of the second opening / closing element 1144 so that the other end of the second opening / Thereby, the opening and closing frame 114 can be closed.

The hinge element 1146 rotates one end of the first opening and closing element 1142 and one end of the second opening and closing element 1144 so that the other end of the first opening and closing element 1142 and the second opening and closing element 1144 So that the distance between the other ends is opened, that is, the opening and closing frame 114 is opened.

Fig. 3D shows a state in which the clamping member 132 of the acoustic sensor arrangement adjuster 100 according to the embodiment restrains the first opening / closing element 1142 and the second opening / closing element 1144 to the upper member 122 do.

Referring to FIG. 3D, the clamping member 132 can be engaged with the frame portion 110 and the support portion 120 by hooking the open / close frame 114 in the closed state.

Accordingly, the frame portion 110 can be moved in the same manner as the motion of the upper member 122.

3E illustrates a state in which the length of the height adjusting member 124 of the acoustic sensor arrangement adjusting apparatus 100 according to the embodiment is contracted and the frame unit 110 is raised and lowered.

By comparing FIGS. 3D and 3E, the height adjustment member 124 shown in FIG. 3D can be contracted by the height of the height adjustment member 124 shown in FIG. 3E. The height of the upper member 122 can be raised along with the contraction of the height adjusting member 124 and the height of the frame portion 110 connected to the upper member 122 can also be raised.

FIG. 3F shows a state in which the frame member 110 is rotated by rotating the rotary member 126 of the acoustic sensor arrangement adjusting apparatus 100 according to an embodiment.

3E and 3F, the frame member 110 and the upper member 122 can be rotated by the rotating member 126. [

According to the sensor array adjusting apparatus according to the embodiment, the researcher can view the camera installed in the laboratory in the acoustic control control room and adjust the position of the acoustic sensor through the rotation and height adjustment of the adjustment device to a direction or a position desired by the researcher , It is possible to adjust the height of the vertical frame provided with the acoustic sensor, thereby solving the difficulty of fixing according to the height of the sensor.

Further, the sensor array adjusting apparatus according to the embodiment can secure the structural stability of the acoustic sensor, reduce the installation space, and rotate the supporting portion in a desired direction by using an " It is possible to easily adjust the placement and removal of the object, and it is easy to install and move according to the deformation, and the overload of the sensor can be prevented by the movement of the sensor, Can be operated.

Although the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: Sensor array adjustment device
110:
112: vertical frame
114: open / close frame
1142: First opening / closing element
1144: second opening / closing element
1146: Hinge element
1122: Sensor
120: Support
122: upper member
124: height adjustment member
126: Rotating member
132: Clamping member

Claims (8)

A frame portion including a plurality of vertical frames arranged in a shape surrounding the object; And
A supporting part which is fastened to the frame part;
Lt; / RTI >
A plurality of sensors are provided in the plurality of vertical frames,
Wherein the plurality of sensors are arranged along a longitudinal direction of the vertical frame,
Wherein the object is disposed in a space surrounded by the plurality of vertical frames so that the sensors are spaced apart from the object,
Wherein the position of the plurality of vertical frames is selectively moved so that the position of the sensor is moved.
The method according to claim 1,
The support portion includes an upper member disposed on the upper portion of the frame portion
Wherein the upper member and the frame portion are connected to each other so that power applied to the upper member is transmitted to the frame portion.
3. The method of claim 2,
The supporting portion may further include a height adjusting member having one end connected to the upper member and the other end connected to a ceiling or a structure,
Wherein the height adjusting member is expanded and contracted to provide an upward / downward power to the upper member, and the upper member transmits the upward / downward power to the frame portion.
The method of claim 3,
Wherein the supporting portion further comprises a rotating member disposed between the upper member and the height adjusting member,
Wherein the rotating member rotates the upper member with the height adjusting member as a rotation axis, and the upper member transmits rotational force to the frame portion.
The method according to claim 1,
Wherein the frame portion further comprises an open / close frame connecting a plurality of vertical frames,
The open /
A first opening / closing element having a shape of a part around the support portion;
A second opening / closing element having a shape of another part around the support portion; And
A hinge element connecting one end of the first opening / closing element and one end of the second opening / closing element;
Lt; / RTI >
The hinge element rotates one end of the first opening / closing element or one end of the second opening / closing element so that the other end of the first opening / closing element and the other end of the second opening / Closing element and the other end of the second opening / closing element so that the other end of the second opening / closing element is spaced from the other end of the second opening / closing element.
The method according to claim 1,
Wherein the support portion and the frame portion are spaced apart from each other,
Wherein the support portion or the frame portion includes a clamping member,
And the clamping member detaches the frame portion and the support portion.
A frame portion including a plurality of vertical frames arranged in a shape surrounding the object; And
A supporting part which is fastened to the frame part;
Lt; / RTI >
At least one sensor is disposed in each of the plurality of vertical frames,
The positions of the plurality of vertical frames are selectively moved so that the interval between the adjacent vertical frames is changed so that the object is drawn in between the vertical frames or the interval between the facing vertical frames is increased or decreased, The sensor array adjusting device in which the total volume is increased or decreased.
The method according to claim 1,
Wherein the sensor is an acoustic sensor that converts the motion of the particle by an acoustic wave into an electrical signal and detects the sensor.

KR1020170055166A 2017-04-28 2017-04-28 Sound sensor arrangement adjuster KR101866134B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020170055166A KR101866134B1 (en) 2017-04-28 2017-04-28 Sound sensor arrangement adjuster

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020170055166A KR101866134B1 (en) 2017-04-28 2017-04-28 Sound sensor arrangement adjuster

Publications (1)

Publication Number Publication Date
KR101866134B1 true KR101866134B1 (en) 2018-06-08

Family

ID=62600331

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020170055166A KR101866134B1 (en) 2017-04-28 2017-04-28 Sound sensor arrangement adjuster

Country Status (1)

Country Link
KR (1) KR101866134B1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100784898B1 (en) * 2007-09-27 2007-12-11 에스지에스 에스알에스 주식회사 Method for leak testing of lng cargo tank
KR20110008139A (en) * 2008-05-14 2011-01-26 고쿠사이 게이소쿠키 가부시키가이샤 Vibration testing system
KR101583597B1 (en) * 2015-03-26 2016-01-08 이동민 Pipe clamp apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100784898B1 (en) * 2007-09-27 2007-12-11 에스지에스 에스알에스 주식회사 Method for leak testing of lng cargo tank
KR20110008139A (en) * 2008-05-14 2011-01-26 고쿠사이 게이소쿠키 가부시키가이샤 Vibration testing system
KR101583597B1 (en) * 2015-03-26 2016-01-08 이동민 Pipe clamp apparatus

Similar Documents

Publication Publication Date Title
JP6023183B2 (en) Display device and support device for other objects
US8481905B2 (en) Shadow band assembly for use with a pyranometer and a shadow band pyranometer incorporating same
KR102002708B1 (en) Unfolding test equipment
EP2859615A1 (en) Arrangement for mounting a directional antenna in an adjustable inclined position
CN103261899B (en) For the equipment that the electromagnetism of object is tested
KR101857495B1 (en) Electric cable support assembly in a utility tunnel
KR101866134B1 (en) Sound sensor arrangement adjuster
JP7032609B2 (en) Capsule endoscopy control system
KR101926109B1 (en) Antenna mounting device with easy control of slant
WO2021100028A1 (en) Improved arm linkage for device bearing spring arms
CN113125841A (en) Detection device
CN109298397B (en) Control method of radar device with follow-up function
US11426059B2 (en) Control system for capsule endoscope
JP5483591B2 (en) Single crystal pulling device and crucible support device
KR20210003126A (en) Lifting tool
CN115855737B (en) Insulating material thermogravimetric analyzer
US20160370451A1 (en) Sunlight tracking sensor
CN206988731U (en) Adjusting bracket for movable radar
CN208125375U (en) A kind of door leaf resists quiet distortion property detecting device
CN205458745U (en) Medical X -ray production apparatus rotary stand column subassembly
CN209400182U (en) A kind of measurement display screen reflectivity integrating sphere applied widely
JPH0735641A (en) Rotary stage for wind tunnel experiment
CN105520499B (en) Temperature measuring equipment mounting assembly and electric cooker
CN220524933U (en) Telescopic adjusting device for inner diameter detection
CN110169771B (en) Tiltable magnetic resonance apparatus

Legal Events

Date Code Title Description
E701 Decision to grant or registration of patent right
GRNT Written decision to grant