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SOUND INTENSITY PROBE SI502 |
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Standard |
IEC 1043 Class 2 |
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Frequency Range (1/3 Octave) |
8.5 mm Spacer: 250 Hz ~ 5000 Hz 12 mm Spacer: 160 Hz ~ 5000 Hz 50 mm Spacer: 63 Hz ~ 1250 Hz |
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Weight |
0.4 kg |
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Output Connectors |
Three-pin Lemo in the Probe |
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Cable to ICP inputs |
5 m cable with Lemo to 2 BNC connectors |
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Case Dimensions |
400 x 200 x 70 mm |
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MICROPHONE PAIRS |
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Microphones |
Selected Type 1 MP231 for intensity microphone pair |
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Diameter |
1/2 inch |
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Response |
Free Field |
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Combined Sensitivity |
40 mV/Pa |
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Microphone Phase Response Difference |
<0.3º, 45 Hz ~ 500 Hz <1º, 500 Hz ~ 2500 Hz <2º, 2500 Hz ~ 6000 Hz |
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Amplitude Response Difference (Ref 250 Hz) |
< 0.5 dB ; 45 Hz ~ 6000 Hz |
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Equivalent Air Volume |
250 mm3 at 250 Hz |
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Temperature Coefficient (-10 ~ 50＜C) |
-0.005 dB/＜C |
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Humidity Coefficient |
-0.003 dB/%RH |
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Pressure Coefficient (250 Hz) |
-0.004 dB/kPa |
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Dimensions |
IEC61094-4 Type WS 2 |
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Preamplifier |
BSWA Type MA211 preamplifier |
SI502 Sound Intensity Probe is built using ICP® type preamplifiers. It complies with IEC 1043 Class 2 Standard. Based on the technique of simultaneous determination of sound pressure and particle velocity by two closely spaced microphones, SI502 can be directly connected to ICP inputs to perform sound intensity measurements.
Features
ICP® powered
Two BNC connectors for easy connection
Accurate phase matched microphones
Face to face configuration
1/3-octave centre frequency ranges: 63 Hz to 5 kHz
Well-defined acoustical microphone separation.
Copyright BSWA Technology Co., Ltd. 1998. All Rights Reserved.
