KR100327468B1 - 흡/차음 성능 테스트 장치 - Google Patents
흡/차음 성능 테스트 장치 Download PDFInfo
- Publication number
- KR100327468B1 KR100327468B1 KR1019990021484A KR19990021484A KR100327468B1 KR 100327468 B1 KR100327468 B1 KR 100327468B1 KR 1019990021484 A KR1019990021484 A KR 1019990021484A KR 19990021484 A KR19990021484 A KR 19990021484A KR 100327468 B1 KR100327468 B1 KR 100327468B1
- Authority
- KR
- South Korea
- Prior art keywords
- sound
- wave
- incident
- material specimen
- test tube
- Prior art date
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 42
- 239000011358 absorbing material Substances 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 239000012774 insulation material Substances 0.000 claims abstract description 17
- 238000011056 performance test Methods 0.000 claims abstract description 14
- 239000011810 insulating material Substances 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/08—Microphones
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
Description
Claims (1)
- 일측에 흡음재 시편이 배치되고, 중간부에는 차음재 시편이 선택적으로 배치되는 시험관;상기 시험관의 타측에 배치되어, 상기 시험관 내부로 음파를 출력하는 스피커;상기 시험관내의 상기 스피커와 상기 차음재 시편 사이에 배치되어, 상기 스피커에서 출력되어 차음재 시편에 입사되는 입사파의 음압을 측정하는 제 1 마이크로폰,상기 차음재 시편과 상기 흡음재 시편 사이에 배치되어 상기 차음재 시편을 투과하여 상기 흡음재 시편에 입사되는 투과파 및 흡음재 시편에서 반사된 반사파의 각 음압을 측정하는 제 2 마이크로폰; 및상기 스피커에서 출력되는 음파를 발생시키고, 상기 마이크로폰에서 측정된 음압을 처리하여 흡음 성능과 차음 성능을 연산하는 컴퓨터를 포함하고,상기 컴퓨터는 음파 발생부; 상기 마이크로폰에서 측정된 음압 데이터를 디지털 데이터로 변환하는 아날로그/디지털 변환부; 상기 아날로그/디지털 변환부에서 변환된 데이터를 투과파와 반사파용으로 각각 분리하는 데이터 분리부; 및 상기 데이터 분리부에서 분리된 데이터로 상기 입사파와 투과파 및 반사파의 주파수별 음압 수치를 측정하여, 서로간의 주파수별 음압 수치 차이로 흡음 성능과 차음 성능을 연산하는 연산부를 포함하는 것을 특징으로 하는 흡/차음 성능 테스트 장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990021484A KR100327468B1 (ko) | 1999-06-10 | 1999-06-10 | 흡/차음 성능 테스트 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990021484A KR100327468B1 (ko) | 1999-06-10 | 1999-06-10 | 흡/차음 성능 테스트 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010001952A KR20010001952A (ko) | 2001-01-05 |
KR100327468B1 true KR100327468B1 (ko) | 2002-03-13 |
Family
ID=19591261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990021484A KR100327468B1 (ko) | 1999-06-10 | 1999-06-10 | 흡/차음 성능 테스트 장치 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100327468B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113049208B (zh) * | 2021-04-07 | 2023-09-15 | 上海应用技术大学 | 一种模拟噪声吸收装置 |
CN113790900B (zh) * | 2021-08-11 | 2024-01-09 | 岚图汽车科技有限公司 | 一种车辆隔声性能测试方法、装置以及电子设备 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980047857A (ko) * | 1996-12-16 | 1998-09-15 | 김영귀 | 차음 측정장치 |
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1999
- 1999-06-10 KR KR1019990021484A patent/KR100327468B1/ko not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR19980047857A (ko) * | 1996-12-16 | 1998-09-15 | 김영귀 | 차음 측정장치 |
Also Published As
Publication number | Publication date |
---|---|
KR20010001952A (ko) | 2001-01-05 |
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