HBK 10 kHz array microphones Microphones
HBK 10 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 | 4957 |
|---|---|
| Sound field | Free field / outdoor |
| Number of measurement channels | 1 |
| Microphone polarization | CCLD / TEDS |
| Interfaces | Ethernet |
| Sound field | Not specified |
| Status | 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
Type 4957 is a miniature array microphone for beamforming, acoustic holography and STSF, as well as simultaneous recording across many channels.
Free-field response is specified at ±2 dB from 100 Hz to 5 kHz, and ±3 dB from 50 Hz to 10 kHz, relative to 250 Hz.
It includes a CCLD DeltaTron preamplifier and a detachable SMB cable. The same coaxial cable carries the signal, power and TEDS data.
Array calculations use phase differences between microphones. Type 4957 has specified phase matching against a factory reference, alongside its individual calibration data.
No. It is prepolarized. Its internal preamplifier requires CCLD power with an appropriate input and cable.
The manufacturer specifies an upper limit of 134 dB SPL with total harmonic distortion below 3%. This is a specification under the stated measurement conditions.
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