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Overview of Sound Measurement and Related Products

小野測器は、音を捉える入り口となるマイクロホンを始め、環境騒音や作業現場での騒音を計測する騒音計から音を感覚量として捉え評価する音質評価システム等の計測・解析機器にいたるまで、 音響計測・解析に係わるトータルなシステムをご提供することが出来ます。 また、日本トップレベルの性能を有する無響室をはじめとする各音響実験室のレンタル、無響箱の販売も承っております。

Microphone

MI Series System Configuration Examples

MI Series System Configuration Examples

MI-1271
1/2 inch
Microphone for measurement
MI-1235
1/2 inch
Microphone for measurement
MI-1433
1/2 inch
Microphone for measurement
Microphone No. 1 Microphone No. 2 Microphone No. 3
Features
  • 1/2 inch
  • High sensitivity, low frequency compatible
  • Suitable for harsh temperature environments
Features
  • 1/2 inch
  • Supports the audible range
  • High cost performance
Features
  • 1/2 inch
  • Low price
  • Effective for environmental measurements, etc.
Compatible preamplifier MI-3170 適合プリアンプ MI-3120 適合プリアンプ MI-3120
MI-1531
1/4 inch
Microphone for measurement
   
Microphone No. 4    
Features
  • 1/4 inch
  • Broadband measurement (up to 100 kHz)
  • Ideal for saving space
   
Compatible preamplifier MI-3140    
MI-3170
For 1/2-inch measuring microphones
Preamplifier
MI-3120
1/2インチ 計測マイクロホン用
プリアンプ
MI-3140
For 1/4-inch measuring microphones
Preamplifier
Microphone No. 5 Microphone No. 6 Microphone No. 7

Features

  • 1/2 inch

  • High sensitivity
  • Self-noise level: 8 dB (A-weighted, using MI-3170)
Features
  • 1/2 inch
  • It offers excellent cost performance and is also effective for multi-channel measurements.
Features
  • 1/4 inch
  • Suitable for small spaces, supports a wide frequency range.
Compatible microphones
MI-1271
MI-1235
MI-1433
MI-1234*
MI-1233*
MI-1432*
MI-1431*
対応マイクロホン
MI-1235
MI-1433
Compatible microphones
MI-1531
MI-1271M12
TEDS microphone for measurement
MI-1282M10
Low-noise microphone
MI-8100
Directional Microphone
Microphone No. 8 Microphone No. 9 Microphone No. 10
Features
The MI-1271M12 TEDS microphone for measurement conforms to IEC 61094-4 Type WS2F. The MI-1271M12 TEDS microphone for measurement can be used by connecting it directly to equipment equipped with a CCLD (constant current drive) power supply via a BNC cable.
Features
Self-noise level: 4.5 dB (typical value)
It can be used by directly connecting it to equipment equipped with a CCLD (Constant Current Drive) power supply via a BNC cable.
TEDS compatible
Features
This is a shotgun-type Directional Microphone that sharply captures the sound you're aiming for.
It is ideal for removing background noise in simple sound source detection and anomaly detection applications.

Sensor amplifier

SR-2210 2-channel sensor amplifier
Sensor amplifier
Features
This is a 2-channel sensor amplifier for inputting sensors from a constant-current drive amplifier into analyzers or recorders such as DATs that do not support constant-current amplifiers. It features two power supply options: battery power and AC adapter (optional). It can be stacked and secured, and supports multi-channel configurations.

 

List of compatible microphone preamplifier cables

Microphone Preamplifier Cable / Conversion Connector amplifier
MI-1271M12 (Measurement Microphone) MX-1000 series
MX-2000 series
SR-2210
MI-1271 MI-3170 MX-1000 series
MX-2000 series
SR-2210
MI-1234*
MI-1235
MI-1432*
MI-1433
MI-3111
MI-3120
MX-2000 series SR-2210
AU-2200*
MI-1531 MI-3140 NP-0130 + NP-0021 SR-2210 *1
AU-2200*
MI-1211* MI-3310* AG-3300 series AU-2200*
MI-1234*
MI-1235
MI-1432*
MI-1433
MI-3310* AG-3300 series AU-2200*

* Discontinued products

*1 The frequency range of the SR-2210 is guaranteed up to 20 kHz.

Sound level meter

LA-4441A
Integral mean (Class 1)
Precision sound level meter
LA-1441A
Integral mean (Class 2)
Standard sound level meter
LA-1411
Integral mean (Class 2)
Standard sound level meter
Sound level meter No. 1

Sound level meter No. 2

Sound level meter No. 3
Features
  • Sound level meter Class 1 (precision sound level meter) for noise analysis and product inspection.
  • Equipped with a 10 ms IMPULSE time weighting characteristic to handle rapidly fluctuating sound levels.
  • Level trend recording is possible with a saving interval of 1 ms (L p record function).
  • Equipped with USB and RS-232C interfaces.
Features
  • Sound level meter Class 2 (standard sound level meter) for measuring noise in work environments and ambient noise.
  • Equipped with automatic measurement functions using timers and triggers.
  • Level trend recording is possible with a saving interval of 1 ms (L p record function).
  • Equipped with USB and RS-232C interfaces.
Features
  • Sound level meter for machine noise levels and product inspection, Class 2 (standard sound level meter)
  • Low-priced, high-performance models
LA-7700
High-performance (Class 1)
Precision sound level meter
LA-7500
High-performance (Class 1)
Precision sound level meter
LA-7200
High-performance (Class 2)
Standard sound level meter
Sound level meter No. 4 Sound level meter No. 5
Sound level meter No. 6
Features
  • The adoption of a large 4.3-inch color LCD improves visibility, including the ability to overwrite text.
  • By using USB bus power, it can be used for extended periods when combined with AA batteries.
  • Simultaneous recording* is possible during frequency analysis. (*Requires LA-0704 recording function)
  • It is possible to compare all-pass sound (sound across the entire frequency range) and bandpass sound (sound within a specified frequency range).
  • Infrasound measurement is possible (*LA-0709 Infrasound measurement function required: only available on LA-7500)

Sound calibration

SC-2600
sound calibration
SC-2500A
sound calibration
SC-2120A
sound calibration
Sound calibration No.1 Sound calibration No.2 Sound calibration No.3
Features
This acoustic calibration conforms to JIS C 1515:2020 Class 1 and has a nominal sound pressure level of 94 dB. In addition to feedback control, it incorporates built-in correction functions for static pressure and temperature, resulting in stable sound output. For high-precision measurements using the low-noise microphone MI-1282M10*, the use of this product is recommended. *Acoustic calibration of low-noise microphones requires an acoustic calibration with a nominal sound pressure level of 94 dB.
Features
This acoustic calibration conforms to JIS C 1515:2020 Class 1 and has a nominal sound pressure level of 114 dB. It generates a stable sound through internal feedback control. Because it generates a high sound pressure level of 114 dB, it is less susceptible to interference from ambient noise in environments such as factories and outdoors, allowing for calibration in the actual measurement environment.
Features
This acoustic calibration conforms to JIS C 1515:2004 Class 2 and has a nominal sound pressure level of 94 dB. It can also be used for simple operational checks. It employs a dynamic speaker design, resulting in a low price.

Related Products

Recording

Analysis

Judgement