04-26-2023 04:34 PM
I've been tasked with checking whether our NI 9232 modules are compatible with B&K microphones type 4966, particularly with model 4966-H-041, which they're intending to buy. I'm not familiar with sound measurements though, having so far only measured IEPE accelerometers with this model. Looking at the respective datasheets my impression is it works, but I'm not confident on whether the NI 9232 will read the full range of the B&K 4966-H-041, and if the noise would be acceptable.
Could someone please advise if this is this module with this microphone is an appropriate match? The relevant specifications from the PDF are attached as a PNG to make it easier.
Thanks!
04-26-2023 11:38 PM
Microphones are similar to Accelerometer when it comes to IEPE. You need to ensure your DSA card can sufficiently provide the excitation current and has sufficient compliance limit that does not clip the signal from the sensor.
This article will be useful - https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z000000P8uwSAC&l=en-US