HBK 20 kHz array microphones Microphones
HBK 20 kHz array microphones: sensors and measurement devices by HBK for microphones.
This series on the HBK site (opens in a new tab)
Models in the series
One column per model: what differs between the models of the series.
| Parameter | 4959 | 4959-A |
|---|---|---|
| Microphone sensitivity | 11.2 mV/Pa | 11.2 mV/Pa |
| Microphone diameter | 0.25 inch | 0.25 inch |
| Sound field | Free field / outdoor | Free field / outdoor |
| Microphone polarization | CCLD | CCLD |
| A-weighted inherent noise | 32 dB(A) | 32 dB(A) |
| Maximum SPL | 134 dB SPL | 134 dB SPL |
| Number of measurement channels | 1 | 1 |
| ADC sampling rate | 131072 samples/s | 131072 samples/s |
| Frequency response | 50–20000 Hz | 50–20000 Hz |
| Interfaces | Ethernet | Ethernet |
| Sound field | Not specified | Not specified |
| Status | Active | Active |
The industries we serve
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Aerospace
- Aircraft door-lock position detection
- Airlines & Aerospace Our balancing machines and moment weighing scales for aerospace drives ensure maximum precision, ease of use, and modular flexibility delivering reliability and performance without compromise contributing to your economic success.
- Automatic balancing machines Automatic balancing machines from Schenck are advanced solutions for precise balancing of rotating components in automated production processes. We offer systems and stations for balancing crankshafts, wheels and tires, turbochargers, electric armatures, drives, axle drive units, torque converters, drive shafts, disc-shaped rotors, as well as fans. Our systems increase productivity, ensure consistent quality, and are tailored to the needs of the automotive, energy, and industrial sectors.
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Medical industry
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Environment
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Electric motor manufacturing
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Food industry
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Automotive industry
- Airlines & Aerospace Our balancing machines and moment weighing scales for aerospace drives ensure maximum precision, ease of use, and modular flexibility delivering reliability and performance without compromise contributing to your economic success.
- Automatic balancing machines Automatic balancing machines from Schenck are advanced solutions for precise balancing of rotating components in automated production processes. We offer systems and stations for balancing crankshafts, wheels and tires, turbochargers, electric armatures, drives, axle drive units, torque converters, drive shafts, disc-shaped rotors, as well as fans. Our systems increase productivity, ensure consistent quality, and are tailored to the needs of the automotive, energy, and industrial sectors.
- Axle Drives With our balancing machines for front and rear axle transmissions, the measured unbalance is corrected by drilling into the drive flanges of the transmissions (welding optional). We support you with our interdisciplinary expertise in the production of front and rear axle transmissions from the initial idea to the design stage through to series production.
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Industrial automation
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Plastics
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Optics
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3D printing
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Battery manufacturing
Frequently asked questions
Answers to the most common questions about our products and services
It is a particularly short microphone designed for Brüel & Kjær hand-held and foldable arrays, where phase matching between channels is important.
It is 13 mm long and 7 mm in diameter. Its short design supports dedicated arrays while maintaining the required microphone spacing.
Its response is optimized for a pressure field. The table defines different tolerances across the band, so a requirement extending to 20 kHz must also consider response tolerance.
Yes. It has an integrated CCLD DeltaTron preamplifier with TEDS, including transfer-function information for unit-specific correction in a supporting system.
Type 4959 is documented with a dedicated connection for the manufacturer hand-held arrays. Match it to the specified array interface and cable.
From 10–20 kHz, the product data lists +5/−3 dB relative to 250 Hz. Compare requirements against the full tolerance, not only the upper frequency limit.
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