Test Methodology
I use an LW-9266 Fan PQ performance measurement apparatus to evaluate cooling fans. This highly sophisticated scientific instrument was made in Taiwan by Long Win.
Fan Testing Machine Technical Specifications:
- Manufacturer: Long Win Science & Technology Corporation
- Air Flow Rate: 2.4 – 250 CFM
- Accuracy of Air Flow Rage: <3.5% INFS
- Repeatability error: < 2%
- Static pressure: 0-20mmAq (100mmAq with the high static pressure throttle device)
- Overall Dimensions: 0.7 (W) x 2.2 (L) x 1.6 (H) m
- Power Source: 220VAC, 5A, Single Phase, 50/60Hz
- Based on Standards: ISO 5801-2007, AMCA 210-0, ASHRAE 51-2007, IEC 61591-2005, GB/T 1236-200
Besides the Long Win machine, I also use the following equipment.
Testing Equipment:
- Noise Test Environment: Hemi-Anechoic Chamber with 6 dB(A) noise floor
- Conditions: 25 (+-2) degrees Celsius, 40-50% humidity
- Sound Analyzer: Bruel & Kjaer 2270-S G4
- Microphone: Bruel & Kjaer Type 4955-A
- Mic Calibrator: Bruel & Kjaer Type 4231
- Data Logger: Picoscope TC-08
Pages:
Compare the Storm Series performance graphs at (the graphs for the same fans are very different)
https://www.amazon.com/Antec-Thickness-High-Performance-Connector-Computer/dp/B0BN61J31N/ref=sr_1_1?crid=332UXG7WJMGRA&dib=eyJ2IjoiMSJ9.S7mRMZF5lTqsGgWiBcnfJMxr5knAVFFQ4liHcVBYwIRxzMNT4eYNiFHJqXFVCBJNj-LP7CwETz2JbiEwjtCxQZVcyWbX0zAXUeNDXaXJdF7HjQtCOaySVWi7Vh8Yl2ljqhRtSm5CST8NAIoAl30yM3hx03hFx9LbjGE67SAPttd3cxjeGs7BPuWj9umX1W8ryjPg5ACHy0IavmOEvheSFWwDl85I_sw3sqIVboO4Ohs.M-Qz20Xi93wDQRROAoZCCjOvZYHNY46w1dj2pjsA1XU&dib_tag=se&keywords=Antec%2B30mm%2BThickness%2BFans&qid=1739924815&sprefix=antec%2B30mm%2Bthickness%2Bfans%2Caps%2C186&sr=8-1&th=1
to
https://www.amazon.com/Antec-Thickness-Premium-High-Performance-Connector/dp/B0BN63HR59/ref=sr_1_3?crid=1T8HFLJ406RO0&dib=eyJ2IjoiMSJ9.SvJK4R7fT-qzDorZnWl9zSxlmWXtSrDli9p4BQ834epjBhUJKdNrn6Ebe2aaMmGBFlYf1INbFe8RQklFR6Zja8LhZfiG_HWvyF69yVnsWj8MShwt-OAPnRELieeUXNM2W9NC3ohOuczm_E3mPHvrn2ZWyXCxP5FX3YIcPCHD7opPWBHCsPUMpUEB1ziWYq8_5B8_0c_vG6vg8tqfxpqT-zF3s1XEYUMBXbVEolNrLj8.LTjBjVFYePqWFLo4BA_VT_ULzgLAmsFG3LJaoL42RAw&dib_tag=se&keywords=Antec%2B30mm%2BThickness%2BFans%2B140mm&qid=1739924883&sprefix=antec%2B30mm%2Bthickness%2Bfans%2B140mm%2Caps%2C158&sr=8-3&th=1