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Cattle farms or farmers know that if you want cattle to be healthy and maintain production, you need to give the cowshed a good ventilation environment. It is not enough to rely on natural ventilation. Therefore, the current livestock industry basically gives its own farms. Install a cow house fan to maintain good ventilation. But the fan belongs to mechanical equipment, and there will be noise during its operation. If the noise is higher than the standard, we need to understand the fan noise measurement method we will talk about below.
The fan will produce a certain noise during the ventilation process, which has a certain impact on the surrounding environment. How to measure its noise memory
1) Use of noise meteraFeature count.
2) The unit of late beating is decibel (a).
3) Before the noise test, the animal husbandry fan should first measure the environmental noise level of the measuring point.
4) The microphone of the noise meter should face the sound source.
5) The dynamic characteristics of the sound meter are adopted in principle"Slow stop"law.
6) The noise level reading takes the nearest integer value of the indicated value.
When the indicated value changes, the average value of the pointer swing is taken. Pay attention to the following two points when measuring the noise of the cow house fan:
Before and after the animal husbandry fan measurement, the noise meter should be calibrated.
When measuring the fan for animal husbandry, attention should be paid to minimizing the impact of the reflected sound on the surface other than the ground, including the animal fan measuring instrument itself.
The permanent magnet synchronous motor of the fan andECThe motor cannot be simply equated to a permanent magnet synchronous motor+Permanent magnet motor driver.ECThe motor is a complete electric drive system. The EC motor manufacturer should have the ability of permanent magnet synchronous motor and the ability to continuously optimize the performance of the EC motor for a long time; the performance curve of the fan and the performance curve of the motor converge, which is beneficial to obtain a good fan performance ratio. The motor parameters, Special design and development of structure and driving algorithm. Therefore, it is important to choose a good supplier.
The noise measurement of the cowshed fan has been introduced here, thank you for reading. If you think this article is helpful to you, please leave a message