R&D Center
This is the NSV R&D center, which leads technical
development in the noise, vibration, and shock fields.
Measurement & Diagnosis
Measurement & Diagnosis
Measurement & Diagnosis
Measurement & Diagnosis

In places where civil complaints and harmful effects to the human body may occur due to various noise/vibration sources such as intermediate equipment room, rooftop facilities, road, railway or subway, we are able to find accurate causes through measurement and diagnosis process and then establish optimal measures.

Necessity
01
Status Evaluation
Measurement of status according to related laws and standards
Evaluation of vibration and noise status during facility, road, railway, and subway service
02
Finding Causes
Understanding major delivery paths through field survey
Selecting major noise sources through analysis of frequency
03
Optimal Measures
Design of optimal measures suited to facility characteristics
Pre-discussion process for construction possibility, etc.
PROCESS
Understanding of field noise
Investigation of sites where damages are expected
Selection of major noise sources
Measurement of Noise
Measurement of Vibration
Waveform Analysis, Frequency Analysis
PEAK Frequency Analysis
Grasping the occurrence due to facilities
Measurement of Noise
Measurement of Vibration
Evaluation of influence and possibility of damage at target points
Evaluation of whether measures are needed
Evaluation of Noise
Measurement of Indoor Noise
Room noise measurement
Project Overview

- Measuring noise influence on the residence and office areas downstairs during the operation of equipment in machine rooms and various other noise/vibration generating facilities on the ground floor
- Measuring Structural Noise caused by vibration generated from the subway when it passes through the basement floor
- Checking if the noise and vibration exceeds the recommended standards or not through measurement
- Checking the points of noise and vibration influence

Measurement of Outdoor Noise
Outdoor noise
Project Overview

- Measuring the noise generated by outside noise generating facilities
- Measuring the boundary noise at factory site
- Measuring the noise generated from the operation of equipment at the construction site
- Measuring the noise from the subway ventilation system
- Measuring the boundary noise of the neighboring residential area against outside noise

Evaluation of Vibrations
Building Vibration Measurement
Building Vibration measurement
Project Overview

- Evaluating the impact of the vibration and Structural Noise of the subway on the building under construction in near area

Measurement Location

- Measuring at the point of the currently constructed part, which is expected to have the highest impact from the subway

Equipment Vibration Measurement
Equipment vibration measurement
Project Overview

- Analyzing frequency according to the properties of vibrations generated when facilities are in operation
- Measuring vibration transmissibility and dynamic displacement depending on the type of vibration isolation system while facilities are in operation

Measurement Location

- Measuring vibrations in sections most likely to be affected while facilities are in operation
- Measuring the performance of facilities and base vibration depending on the presence of a vibration isolation system

FRF Measurement and Mode Shape
FRF measurement and mode features
Project overview

- Analyzing frequency according to the properties of vibrations generated when facilities are in operation
- Measuring vibration transmissibility and dynamic displacement depending on the type of vibration isolation system while facilities are in operation

Measurement Location

- Measuring vibration in sections most likely to be affected while facilities are in operation
- Measuring the performance of facilities and base vibration depending on the presence of a vibration isolation system