Sound Source Visualization Probe Microphone
MI-5420
MI-5420 Sound Source Visualization Probe Microphones
(60 mm / 120mm)
MI-5420 is probe microphone to visualize sound source with a minimum number of microphones by using Beam Forming and originally developed calculation method. Compact design of approx. 35 cm allows ease of use and good portability.
Two types of probe head (for low frequency and high frequency) are provided to meet demands for wide frequency range measurement. As 500 Hz to 8000 Hz of frequency is supported by two probe heads, you can select either depending on your needs.
For high frequency measurement
(microphone interval: 60 mm): 1 kHz to 8 kHzFor low frequency measurement
(microphone interval: 120 mm): 500 Hz to 4 kHz
Features
For low frequency:500 Hz to 4000 Hz
For high frequency:1000 Hz to 8000 Hz
Compact body approx. 35 cm length allows measurement in limited space such as vehicle interior.
Low introduction cost and easy to carry around
• Remote control of measurement start, stop, and data storage
Application example
The measurement system includes DS-3200 series as a measurement unit, MI-5420 as a microphone. BF-3100 and OS-2000 series software are used for measurement and analysis.
Overview specification
Recording function(Camera)specification
| Number of pixels | VGA(640 x 480) fixed |
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| AVI file format | AVI Motion Jpeg format |
| Frame rate | 25 fps(recording)/ 5 fps(monitoring) |
| Camera viewing angle | Horizontal:42 ° Vertical:26 ° |
| Interface | USB 3.0 |
| Cable | 3 m |
Acoustic specification
| Probe structure | 3D arranged tetrahedral microphone |
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| Microphone | 1/4-inch microphone |
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Sound pressure sensitivity |
−38 dB ± 3 dB |
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| Frequency characteristics |
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| Max. sound pressure level | 110 dB (1 kHz, THD 3 %) | ||||||||||||||||
| Self-noise level | 39 dB (A-weighting) | ||||||||||||||||
| Microphone interval | For low frequency |
For high frequency |
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120 mm ± 1 mm |
60 mm ± 1 mm |
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Temperature coefficient |
0.1 dB/10 ℃(TYP) |
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| Acceptable cross phase between microphones |
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| Connector used | HR10G-10R-10PB(71) HIROSE ELECTRIC CO., LTD. | ||||||||||||||||
General specification
| Power requirement |
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Operating temperature range |
0 to 50 ℃ | ||||||||
| Storage temperature range | −10 to 60 ℃ | ||||||||
| Operating humidity range | 85 %RH or less(with no condensation) | ||||||||
| Storage humidity range | 90 %RH or less(with no condensation) | ||||||||
| Microphone interval | For low frequency : 120 mm± 1 mm |
For high frequency : 60 mm± 1 mm |
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| Weight (not including a grip and cable) | 620 g | 500 g | |||||||
| Dimensions | Length | 349 mm ± 3.0 mm | 311 mm ± 2.0 mm | ||||||
| Max. width | 141 mm ± 2.0 mm | 74.3 mm ± 1.5 mm | |||||||
| Max. height | 172.5 ± 2.0 mm | ||||||||
| Casing material | Aluminum alloys | ||||||||
| Applicable standard CE marking* |
EMC Directive 2014/30/EU Standard EN61326-1 RoHS Directive 2011/65/EU Standard EN IEC 63000 |
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| Accessory | Carrying case, microphone position checking plate, BNC cable (0.2 m), BNC-JPJ adapter, mount, correction file CD, instruction manual | ||||||||
Revised:2016/06/01
