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The SIZE of microphone and its sensitivity does influence its CAPABILITY. Typically, microphones with the smaller DIAMETER and lower sensitivity allow higher amplitudes and frequencies to be measured. CONVERSELY, larger diameter and/or more sensitive microphones provide lower NOISE floor and lower frequency capability.

The size of microphone and its sensitivity does influence its capability. Typically, microphones with the smaller diameter and lower sensitivity allow higher amplitudes and frequencies to be measured. Conversely, larger diameter and/or more sensitive microphones provide lower noise floor and lower frequency capability.

POLAR plots (also REFERRED to as beam patterns) show a radially symmetric view of the angular dependence of the sound pressure detected by the microphone. The data provided in a polar plot will show how the sound pressure level detected by the microphone changes at VARIOUS angles of INCIDENCE. The angle of incidence USED is typically a 180 or 360 degree arc with the microphone at the center. The pressure amplitude decreases as you move from the center. Polar plots do not show the frequency dependence of the measured sound pressure and are always acquired at a specific frequency. The measurement frequency should always be specified with polar data because the shape of the beam pattern will change at different frequencies.

Polar plots (also referred to as beam patterns) show a radially symmetric view of the angular dependence of the sound pressure detected by the microphone. The data provided in a polar plot will show how the sound pressure level detected by the microphone changes at various angles of incidence. The angle of incidence used is typically a 180 or 360 degree arc with the microphone at the center. The pressure amplitude decreases as you move from the center. Polar plots do not show the frequency dependence of the measured sound pressure and are always acquired at a specific frequency. The measurement frequency should always be specified with polar data because the shape of the beam pattern will change at different frequencies.

Multiple free-field microphones spaced in a predetermined pattern and combined with the appropriate software; allow SPATIAL transformation of a COMPLEX sound pressure field to be projected to effectively map the acoustic energy flow. Array microphones are an excellent choice for large CHANNEL count acoustic testing due to their overall value and phase matching specifications. Transducer Electronic Data Sheet (TEDS) are recommended, SINCE they enable the user to quickly and easily identify a particular MICROPHONE. 

Multiple free-field microphones spaced in a predetermined pattern and combined with the appropriate software; allow spatial transformation of a complex sound pressure field to be projected to effectively map the acoustic energy flow. Array microphones are an excellent choice for large channel count acoustic testing due to their overall value and phase matching specifications. Transducer Electronic Data Sheet (TEDS) are recommended, since they enable the user to quickly and easily identify a particular microphone. 

Low FREQUENCY is a relative term. Standard 1/2" condenser TEST and measurement grade microphones have a -3 DB POINT of 1 Hz to 3 Hz, which is sufficient for most applications. Specialty microphones have been developed to exceed that and measure as low as 0.1 Hz.

Low frequency is a relative term. Standard 1/2" condenser test and measurement grade microphones have a -3 dB point of 1 Hz to 3 Hz, which is sufficient for most applications. Specialty microphones have been developed to exceed that and measure as low as 0.1 Hz.

The noise floor of microphone is defined by the cartridge thermal noise specification. It is important to note that the electrical noise of the PREAMPLIFIER will impact the noise floor of the microphone and preamplifier combination. Other components in the measurement chain, for example power SUPPLIES and data acquisition systems, can also be limiting factors and INCREASE the MINIMAL sound pressure that you can measure.

The noise floor of microphone is defined by the cartridge thermal noise specification. It is important to note that the electrical noise of the preamplifier will impact the noise floor of the microphone and preamplifier combination. Other components in the measurement chain, for example power supplies and data acquisition systems, can also be limiting factors and increase the minimal sound pressure that you can measure.

Yes, during PRODUCT testing noise floor calculations can be USED as part of the product DESIGN PROCESS.

Yes, during product testing noise floor calculations can be used as part of the product design process.

Array microphones OFFER a LOWER COST SOLUTION. 

Array microphones offer a lower cost solution. 

Probe microphones are RECOMMENDED for SMALL hard-to-reach and HIGH temperature (up to 800º C) areas. 

Probe microphones are recommended for small hard-to-reach and high temperature (up to 800º C) areas. 

Surface microphones are USED to measure true surface pressure and noise. They are optimized for MEASUREMENTS in confined SPACES and to REDUCE WIND induced noise during testing. 

Surface microphones are used to measure true surface pressure and noise. They are optimized for measurements in confined spaces and to reduce wind induced noise during testing. 

CAUTION should be TAKEN when HANDLING these SENSITIVE INSTRUMENTS. 

Caution should be taken when handling these sensitive instruments.