HBK production-line test microphones Microphones
HBK production-line test 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 | 4989-A eli-m-b679db2d8174a2ec623ed738 |
|---|---|
| ADC sampling rate | 131072 samples/s |
| Maximum SPL | 140 dB SPL |
| Interfaces | ethernet |
| Number of measurement channels | 1 |
| Sound field | v_f6023b0503dfda71 |
| Microphone diameter | 0.25 inch |
| A-weighted inherent noise | 30 dB(A) |
| Frequency response | 5–20000 Hz |
| Operating temperature | -20–60 °C |
| Microphone sensitivity | 9 mV/Pa |
| Microphone polarization | v_fd92f923cc55cf55 |
| 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
It serves acoustic tests close to product sound ports and in unpredictable sound fields, where consistency between test stations matters.
It connects directly to a CCLD input and includes TEDS for identification and sensitivity data in a supporting measurement system.
Nominal sensitivity is 9 mV/Pa. The specified frequency range is 5 Hz to 20 kHz at ±2 dB tolerance.
The microphone and preamplifier housing use titanium, with a gold-plated brass connector. The design also reduces magnetic-field sensitivity.
Low microphone-to-microphone amplitude and phase variation supports consistent measurements across test lines and stations, alongside system calibration and setup.
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