Ultra-Low-Noise Free-Field Microphone Set for Application-Focused Engineering
CRY3261-S02 uses a prepolarized sensing element for free-field measurement and is supplied as a matched microphone and preamplifier set. Free-field response is relevant where the microphone measures sound arriving without dominant reflections, such as in anechoic rooms, controlled test areas and many product-noise setups. Selection should consider the expected minimum and maximum sound level, bandwidth, field type and connector.
Key Features and Benefits
- 450 mV/Pa (-7 dB ±2 dB re 1 V/Pa) nominal sensitivity.
- 10 Hz to 16 kHz ±2 dB; 6 Hz to 20 kHz ±3 dB frequency response.
- 5 dBA to 100 dB; upper limit 85 dB from 8 kHz to 20 kHz dynamic range.
- IEPE, BNC, IEEE 1451.4 TEDS.
- IEC 61094-4 type WS2F.
- Operating temperature: -20°C to +60°C.
- Prepolarized design eliminates the need for an external polarisation voltage.
Technical Specifications
| Specification | CRYSOUND CRY3261-S02 |
| Field type | Free-field |
| Nominal sensitivity | 450 mV/Pa (-7 dB ±2 dB re 1 V/Pa) |
| Frequency response | 10 Hz to 16 kHz ±2 dB; 6 Hz to 20 kHz ±3 dB |
| Polarisation voltage | 0 V |
| Dynamic range | 6.5 dBA to 100 dB; upper limit 85 dB from 8 kHz to 20 kHz |
| Interface / powering | IEPE, BNC, IEEE 1451.4 TEDS |
| IEC 61094-4 type | WS2F |
| Operating temperature | -20°C to +60°C |
| Dimensions | 1/2-inch set; 36 g |
| Pressure equalisation | Rear vented |
Applications
- Anechoic-chamber and quiet-room testing
- Electroacoustic and audio measurement
- Product noise and quality-control testing
- Acoustic research and development
- Automotive noise, vibration and harshness testing
Integration and Configuration Considerations
The complete set includes the microphone and IEPE preamplifier. Confirm the data-acquisition input supports the stated constant-current supply and connector. TEDS is included only where shown in the specifications.
Selecting the Measurement Chain
Accurate acoustic measurement depends on the complete signal chain. Therefore, confirm the microphone field type, sensitivity, dynamic range, preamplifier, connector, cable, constant-current supply, data-acquisition input and calibration method as one system. Metromatics can help review these interfaces before quotation.
Why Source the CRY3261-S02 Through Metromatics?
Metromatics can help Australian and New Zealand customers compare the CRY3261-S02 with other CRYSOUND measurement options. Help review the intended sound field, level range, bandwidth, connector and acquisition requirements before quotation.
Contact Metromatics to discuss your application, confirm the correct CRY3261-S02 configuration, obtain additional technical information or request pricing and a quotation.
