Coming from many sources in recent years, noise is a form of sensory pollution that is becoming a particularly serious problem in our daily life. Thus, in plants, construction sites and other noisy places, noise needs to be monitored and counteracted for the sake of the local residents. At INC, we provide systems to record noise, vibration and other data in remote areas over long periods to allow for realtime monitoring of local status.
We Meet the Following Demands
Monitoring Systems
Example: Wind turbine noise monitoring system
Feature 1: Capable of various measurements for noise, vibration and rotational speed
・Support data for up to 128 channels (32 standard)
Feature 2: Capable of long-term, multi-channel, high sample rate records
・Support 30-day continuous measurement with 16-channel, 24-hertz sampling (for 2 TB hard drive)
Feature 3: Capable of optimal measurement, communication, recording and monitoring for the site
・Offer selection of all-weather models, wired or wireless, webcams and more
Feature 4: Can get data with wind noise drastically reduced
・Use Kaze Conner-kun, an industry-government-academia joint-developed product (used only when measuring wind turbine noise)
・Improved precision for infrasound measurements
Kaze Conner-kun
A joint R&D product by the Ministry of Environment, Shizuoka University, INC Engineering and Aco; commissioned by the MOE as part of the 2011 Technological Development Projects for Global Warming Countermeasures. Unlike other applications, measuring noise for wind turbines requires wind speed to be above a certain level during measurement. Under these conditions, the target sounds get muffled by low-frequency wind noises1 and cannot be measured correctly.
While JIS C 1400-112 specifies installation methods and uses for windscreens, a windscreen does not sufficiently reduce low-frequency wind noises. Thus, the Kaze Conner-kun is required for accurate measurement under extreme wind conditions. (Reduces wind noise 20-30 dB in the 1-500 Hz range)
Model (name): Kaze Conner-kun
Frequency range: 1-500 Hz
Wind noise reduction: 46+ dB (10 Hz)
Scope: Wind speeds under 20 m/sec.
Precipitation: Below 30 mm
Weather resistance: 2 years
Structure: all-weather
Dimensions: Max. 1,169 (diameter) x 800 mm (height)
Weight: Approx. 1 kg (unit and shafts) 【Structure】
Unit: 1
Shafts: 6 per unit
Jointed shafts: 3 per unit
Hammer: 1
Anchors: 18 per unit
Operation manual: 1
Kaze Conner-kun storage case: 1
• Assembled (approx. 1 kg)
• 60 cm max. when folded
Notes:
1: Pressure fluctuation from wind. These noises are not airborne sound waves. Wind shakes the microphone diaphragm, raising noise levels as if there was a sound there.
2: JIS C 1400-11 (2005) “Wind Power Generation Systems, Section 11: Noise Measurement Methods" (IEC 61400-11 (2002))