Types of facilities suitable for measuring physical factors:

Industrial (working) environment:
- Noise
- EMR (50 Hz)
- Infrasound
- Vibration
Civil airplanes and helicopters:
- Noise (in cabins and crew cockpits)

Residential and public buildings (inside the premises):

- Noise

- Vibration

- Infrasound

- EMR (50 Hz)

Residential area (territory of the residential construction) and sanitary protection zones:

- Noise

- EMR

 Traffic flows (measurements of the acoustic performance):

- Noise

Acoustic barriers (measurements of efficiency):

- Noise

Work performed:

  1. Measuring levels of the physical factors with further provision of the measurement report for the following:

    • - project work execution;

    • - putting facilities into operation.

    • - production control;

    • - control on the border of the sanitary protection zone;

    • - hygienic rating;

    • - engineering and environmental research;

  2. Receiving expert evidence on provided measurement reports.

  3. Monitoring noise levels.

  4. Development of the report based on the full-scale measurement results (evaluation of the noise levels dynamic patterns depending on different combinations of the noise generation conditions):

    • - airports and aerodrome environs;

    • - recreational territories.

    • - residential construction territories;

    • - industrial territories;

  5. Performing evaluation of the acoustic and vibration impact on buildings and facilities structural design and flooring.

  6. Development and validation of the methods for noise level and vibration measurements.



 

Type of work

Initial data   

Work results

Performed task

1


Measurements on the border of the sanitary protection zone (SPZ)
1) Program of monitoring/in-situ survey.

2) Federal Budget Healthcare Institution (FBHI) expert finding on SPZ project or its information relating to noise sources description.

3) Safety and Health Certificate of the Russian Federal Service for Consumer Rights and Health Protection (Rospotrebnadzor). 

Measurement report(s)

Gathering necessary information for confirmation of the calculated SPZ borders for the purpose of changing its status to Set according to p. 2.2 of the Sanitary regulations and standards (SanPiN) 2.2.1/2.1.1.1200-03

2
Measuring vibration levels when performing construction work for the purpose of evaluating their impact on condition of neighboring buildings
Information on results of the building structural survey in terms of information about the ground type (1, 2 or 3) and facility category together with condition category (1, 2 or 3)

Measurement report(s)

Technical report


1) Measuring actual values of vibration levels when performing work.

2) Evaluation of vibration levels impact on the facility structure under examination, recommendations on their reduction.

3

Performing full range of vibration measurements in the facility supporting structures and flooring for evaluation and comparative analysis with guideline values during musical performances.

1) Plan of facilities under examination indicating places for musical equipment 

2) List of used musical equipment

Measurement report(s)

Technical report


1) Measuring actual values of noise and vibration levels 

2) Evaluation of vibration levels impact on a structure of the facility under examination and people inside it, recommendations.

4

Measuring  physical factors inside facilities

1) Plan of the facilities under examination

2) Noise sources technical specifications (if requested)

Measument report(s)

1) Measuring actual values

2) Comparison with the standard

5

Measuring aircraft noise levels in the aerodrome environs

1) Information about the aircraft take-off/landing for the airport under examination (an aircraft type, entry/exit point, take-off/landing time, course, runway (RW) in use)

2) Information about  standard take-off/landing routes for instrumental departure (SID, STAR)

3) Cartographic materials indicating aerodrome environs (preferably in dwg format)

4) Cartographic materials indicating boundaries of the neighboring residential construction (area planning design information preferably in dwg format) 

5) Cartographic materials indicating boundaries of the sanitary protection zone and clear zones

Measuring report(s)

Technical report

1) Measuring actual values of the aircraft noise levels 

2) Evaluation of the equivalent sound levels

3) Evaluation of the maximum sound levels on exit points.

4) Defining the loudest aircraft types

5) Analysis of the aircraft flight path according to their noise load at measurement points

6) Measuring to define the number of deviations (vectoring) from standard routes. Evaluation of their impact on noise levels.

7) Defining the air corridor width for standard routes using the resource flightradar24.ru

6

Measuring acoustic performance of the noise sources 

1) Traffic density (for highway and railway transport)

2) Noise sources technical characteristics (name, model, etc)

Measurement report(s)

Collecting initial design data 

7

Measuring physical factors at work places

1) List of work places

2) Working shift duration

3) Operational procedures/functions and percentage of their performance time (of the working shift)

Measurement report(s)

Measuring actual values of the noise/vibration/infrasound/EMR levels at work places


Main purposes of noise measurements:

  • - Determining noise levels at a specified point and their comparison with standard values

  • - Determining noise reduction facilities efficiency.

  • - Determining equipment acoustic performance;

  • - Determining specific noise source contribution to the sound field at a specified point;

We provide services on conducting the above mentioned measurements in the infrasonic and audible frequency bands.

1) Measurements for determining noise levels at a specified point and their comparison with actual values involve:

  • - conduction of full scale measurements

  • - conclusions about presence/absence of excess over standard values.

  • - comparing measurement results with actual values for a given measurement point (values can change depending on time of the day, area type and other reasons);

  • - measurement results processing;

Measuring conditions:

  • - availability of the noise sources;

  • -information about area/facility functions, where the measurement point was selected.


2) Measurements to determine contribution of a specific noise source to the sound field involve:

  • - conduction of full scale measurements;  

  • - conclusions about presence/absence of excesses over standard values.

  • - comparing measurement results with standard values for a given measurement point (values can change depending on time of the day, type of territory and other reasons);

  • - determining contribution of a specific noise source level;

  • - measurement results processing;

Measuring conditions:

  • - noise sources availability;

  • - possibility to switch on/off the noise source which contribution is supposed to be evaluated.

  • - information about area/facility functions, where the measuring point was selected;

3) Measurements for determining acoustic performance of the equipment involve:

  • - conduction of full scale measurements;

  • - if standard values are available, measurement results comparison with standard values for a given source.

  • - calculation of the sound power levels of a noise source;

  • - measurement results processing;


Measuring conditions:

determined depending on a noise source type.

4) Measuring to determine noise mitigation measures efficiency involve:

  • - conduction of full scale measurements without noise reduction facilities;

  • - determining noise reduction facility efficiency.

  • - measurement results processing;

  • - conduction of full scale measurements with noise reduction facilities;


Measuring conditions:

  • Determined depending on noise reduction facility type.


In all cases mentioned above measurement  report is prepared on the official form of the certified laboratory of LLC Acoustic design Institute.

Services