Test for Determination of the noise emitted by rotating electric machines

Test for Determination of the noise emitted by rotating electric machines provides useful information to determine priority noise control solutions, control quality during production; optimize research and development of products and materials that help reduce sound, prevent noise, absorb sound, insulate sound, etc.

Overview of the Test for Determination of the noise generated by rotating electric machines

Test name: Test for Determination of the noise generated by rotating electric machines.

Test method: ISO 1680:2013 Acoustics – Test code for the measurement of airborne noise emitted by rotating electrical machines [1].

Conducted at:

• In-situ of machine placement area
• Acoustic Chamber & Reverberation Room, Institute of Development & Application for Sound Materials (DASM).

Tests in reverberation room and in-situ to evaluate the sound power level of a noise source

1. Test target and subjects

– Test target

Determine the noise generated by rotating electric machines.

– Test subjects

 Rotating electric machines.

2. Experimental procedure

Steps:

• Fully equipped with neccesary equipment.
• Perform sample measurements.
• Process and report the test results.

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3. Note:

The concept of rotating electrical machines is very broad. With some large industrial rotating machines, we can see that there are subjects that have their own tests, for example:

+ Generator set (test 33/ISO 8528-10:1998);

+ Tool machines (test 34/ISO 234-5:2000);

+ Air compressor and vacuum pump (test 35/ISO2151:2004).

• Some types of rotating electrical machines mentioned above have their own standards, so this test focuses on presenting the test on small portable electrical machines.
• Depending on the size, shape of the subject and experimental conditions, the microphone arrangement diagram as well as the conditions of the absorption room and test site will be selected. The measurement surface can be selected as parallelepiped or hemispherical. In addition to the two standards ISO 3744:2010 and ISO 3745:2012, some types of measuring surface can be referred to according to standard 85-1973-IEEE [7]. 

Role – importance of  the Test for Determination of the noise generated by rotating electrical machines

The Test for Determination of the noise generated by rotating electrical machines conducted by the Institute of Development and Application for Sound Materials provides useful information, meeting all practical needs of customers and businesses:

• Control noise, isolate noise sources, prevent noise, and implement mitigation measures to avoid health and safety risks and not have negative impacts on the community.
• Measure the working environment and assign appropriate work. Train workers exposed to noisy environments to clearly understand the harmful effects of noise and safe working measures.
• Material manufacturers, rotating electrical machines consulting – design units who want achieve the goal of effective noise reduction, sound absorption, sound insulation…
• Control quality during the production process, optimize research and development of products and materials that help reduce sound, prevent noise, absorb sound, insulate sound… related to noise generated by rotating electrical machines.
• Commercial businesses/consultants use it as a valid basis to propose and implement solutions that prioritize machinery, construction equipment, technology and technological initiatives, minimizing the impact of noise.

In addition, if the test sample does not meet the standards, DASM will consult and design solutions for shape/structure/materials used to calibrate the design leanly, efficiently, and sparingly.

In the past, if you still had some concerns and wonders about spending a lot of money for similar acoustics services abroad, now you just need to contact with DASM. We will proactively carry out the entire remaining process in the fastest possible time to perfect the customer experience with us: DASM provides acoustics consulting services with truly outstanding quality and the most competitive fees in the industry along with excellent customer service policies.

 Meaning of acoustic testing service at DASM

Today, globalized commercial life creates countless new markets and sources of supply across the world. To walk along them would be international regulations and standards to help customers easily assess the quality – trace the product’s origin, choose suitable / superior products. In particular, they also support manufacturers to constantly improve and better technology, techniques, materials, production methods, sales, etc.

The Institute of Development & Application for Sound Materials (DASM) is a pioneering, comprehensive, professional and prestigious brand in Vietnam in the field of acoustics. On January 12, 2023, DASM was granted a certificate No. 114/TĐC – HCHQ by the Directorate for Standards, Metrology and Quality (Ministry of Science and Technology) on certification of testing activities registration for multidisciplinary synthesis in the field of Mechanics (registration number: 707/TN – TDC).

Our acoustic testing services help customers get accuarate practical results which meet sustainability, standard performance. We also offer solutions – consulting – adjusting designs … to optimise products and services. As a result, you will update, meet and adapt to ever-changing international standards to break through in revenue, profit and elevate your brand.

If you want to perform a test for Determination of the noise generated by rotating electrical machines, please contact the Hotline for detailed advice!