gras风球am0009适用于中国大陆41am的挡风玻璃
gras风球 gras麦克风 gras* gras办事处 gras代理 gras挡风玻璃
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gras am0009 windscreen for 41am/cn
max.diameter x height: 70 x 120 mm
material: foam
gras am0009适用于中国大陆41am的挡风玻璃
大直径x高度：70 x 120 mm
材料：泡沫
technology
introduction
the gras am0009 is a set of 5 windscreens. the windscreen is included with the complete windscreens with birdspikes i.e. am0145, am0370, and am0052 but can be replaced separatelly when worn out.
design
when a microphone is placed in a laminar flow, turbulence is created which in turn results in unwanted pressure variations on the diaphragm. by using a windscreen the pressure variations are moved as far away from the diaphragm as possible.
theoretically this supports a “the-bigger-the-better design”, but in practice it is a compromise between air speed reduction, practical size and self-induced noise. self-induced noise is wobble-noise which is generated, when the windscreen starts moving around the microphone.
the gras windscreens are all size optimized and their special, open-cell foam structure and number of pores per inch2 (ppi), are designed to resist a humid environment and at the same time not influence the sound pressure measurement result significantly.
quality & warranty
gras accessories are made of stainless steel, alloys and high-quality composites. these items are covered by a 2 year warranty respecting their intended use.
on consumables like batteries, cables and windscreen we offer a 6 month warranty.
技术介绍
gras am0009是一套5块挡风玻璃。挡风玻璃包括带有鸟钉的完整挡风玻璃，即am0145、am0370和am0052，但磨损时可以单独更换。
设计
当传声器置于层流中时，会产生湍流，从而导致隔膜产生不必要的压力变化。通过使用挡风玻璃，压力变化尽可能远离隔膜。
理论上这支持“越大越好的设计”，但在实践中，这是在空气速度降低、实际尺寸和自感噪声之间的折衷。自感噪声是当挡风玻璃开始围绕麦克风移动时产生的摇摆噪声。
gras挡风玻璃都是尺寸优化的，其特殊的开孔泡沫结构和每英寸的孔数（ppi）被设计成能够抵抗潮湿环境，同时不会显著影响声压测量结果。
质量和保修
gras配件由不锈钢、合金和复合材料制成。这些产品的预期用途保修期为2年。
对于电池、电缆和挡风玻璃等消耗品，我们提供6个月的保修。
gras 46bp
gras 46bh
gras 40sc
gras 46sa
gras 26ab
gras 26an
gras 46ar
gras 26ac
gras 26hg
gras 26as
gras 26ck
gras 26cb
gras 26cg
gras 26cc
gras 26cs
gras 41ac
gras 40hf
gras 40hh
gras al0030
gras aa0079
gras 46bl
gras 46bd
gras 46be
gras op0040
gras op0041
gras op0030
gras op0031
gras op0032
gras op0050
gras op0051
gras op0070
gras 44aa
gras 44ab
gras op0045
gras op0046
gras 43ah
gras 43ai
gras aa0032
gras aa0033
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gras aa0035
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gras aa0073-cl
gras 12al
gras 12ax
gras 42ag
gras 42ap
gras 46bp-1
gras 46dp-1
gras 46bh-1
gras am0069
gras am0009
gras am0071
gras am0363
gras am0376
gras am0364
gras am0033
gras am0037
gras am0038
gras am0089
gras am0029
gras am0052