HBK Experimental Products Various Measurement Hardware

Accelerometers, impact hammers, and microphones for a wide range of measurement needs and applications

Measurement microphones are precision instruments that require manufacturing under strict control. Bruel & Kjaer (HBK) microphones are produced in clean rooms where airborne dust and particles that could degrade microphone performance are minimized.
Bruel & Kjaer also offers a broad lineup of accelerometers and impact hammers to meet diverse measurement needs and applications.
ESTECH’s test & measurement consulting services are also supported by Bruel & Kjaer’s high-quality sensors.

Impact Hammers

Designed to excite and measure the force response of small to medium-sized structures such as engine blocks, vehicle frames, and vehicle components.

Scrollable.
General-purpose
Impact Hammer		 Large
Impact Hammer
Model 8206 8207
Sensitivity mV/N 22.5 22.5
Measurement range N 220 22K
Frequency range Hz up to 5k up to 0.7k
Head weight (with extender) g 100(140) 450
Connector BNC BNC
Appearance
General-purpose impact hammer appearance
Large impact hammer appearance

Selecting an Impact Hammer

Select an impact hammer mainly based on the weight of the object to be excited and the excitation frequency. General guidelines are as follows.

  • Guideline for exciting the entire object.
  • If exciting only part of the object, a small/general-purpose hammer may be used.

Electrodynamic Shakers

Compact and lightweight measurement shakers are ideal for experimental modal analysis, vibration testing of small objects, accelerometer calibration, and measurement of mechanical impedance and mobility.
Modal shakers feature a high force-to-weight ratio and were specially developed to provide the best possible modal test performance with minimal setup time.

Scrollable.
Measurement shaker Measurement shaker Modal Exciter
Model 4810 4808 4828
Rated force N 10 112 1000
Frequency range Hz DC to 18K 5 to 10K DC to 5K
Appearance
Measurement shaker appearance
Measurement shaker appearance
Modal shaker appearance

Measurement Microphones

A microphone’s design may appear quite simple, but manufacturing requires the utmost care and control to maintain sensitivity and stability. With HBK’s pioneering experience, rigorous testing, and quality control, we provide measurement microphones that other products are benchmarked against.

4966-H-041 1/2-inch Free-field CCLD Microphone

  • sensitivity : 50mV/Pa, frequency range : 6.3 to 20KHz. Measuring range : 16.5 to 134dB
  • Wide temperature range: 55 to 125 degree Celsius

4955 1/2-inch Low-noise Microphone

  • sensitivity : 1000mV/Pa, frequency range : 5 to 20KHz. Measuring range : 6.3 to 110dB
  • All-titanium construction; immune to electromagnetic noise

4190-L-001 1/2-inch Wide-range Microphone

  • sensitivity : 50mV/Pa, frequency range : 3.15 to 20KHz. Measuring range : 15 to 148dB
  • Wide measurement range with excellent long-term stability

4941-A-011 1/4-inch High-sound-pressure Microphone

  • sensitivity : 0.06mV/Pa, frequency range : 4 to 20KHz. Measuring range : 73.5 to 184dB
  • For high sound-pressure measurements such as blast noise

4138-A-015 1/8-inch High-frequency Microphone

  • sensitivity : 0.56mV/Pa, frequency range : 6.5 to 140KHz. Measuring range : 52.2 to 168dB
  • For high-frequency sound measurements

4949 Surface Microphone

  • sensitivity : 11.2mV/Pa, frequency range : 5 to 20KHz. Measuring range : 40 to 159dB
  • For aeroacoustic measurements; titanium construction

4193-L-004 1/2-inch Low-frequency Microphone

  • sensitivity : 2mV/Pa, frequency range : 0.1 to 20KHz. Measuring range : 29 to 148dB
  • For infrasonic/ultra-low-frequency sound measurements

4101-B Binaural Microphone

  • sensitivity : 20mV/Pa, frequency range : 20 to 20KHz. Measuring range : 23 to 120dB
  • Place the microphone at the entrance of the ear canal for binaural recording

4182 Probe Microphone

  • sensitivity : 3.16mV/Pa, frequency range : 1 to 20KHz. Measuring range : 42 to 164dB
  • Tip usable up to 700°C; for sound measurements in confined spaces

4952-A Outdoor Microphone

  • sensitivity : 31.6mV/Pa, frequency range : 1 to 20KHz. Measuring range : 16 to 130dB
  • For outdoor measurements exposed to wind and rain

8103 Hydrophone (underwater microphone)

  • sensitivity : 0.026mV/Pa, frequency range : 0.1 to 180KHz. Measuring range : 16 to 130dB
  • For underwater sound measurements

Acoustic Calibrators

4231 Acoustic Calibrator

  • Sound pressure: 94/114 dB, Frequency: 1 kHz

4226 Multi Acoustic Calibrator

  • Sound pressure: 94/104/114 dB, Frequency: 31.5 E6 kHz (octave steps) / 12.5 kHz

Accelerometers

HBK provides accelerometers that combine top quality with durability, stability, and flexibility.

4517 1-axis CCLD Accelerometer

  • mass : 0.65g, sensitivity : 1.02mV/ms2, frequency range : 1 to 20KHz. Measuring range : 500G
  • Compact and lightweight

4507-B 1-axis CCLD TEDS Accelerometer

  • mass : 4.8g, sensitivity : 10mV/ms2, frequency range : 0.3 to 6KHz. Measuring range : 70G
  • With a slit for easy mounting when used with a clip

4526-001 1-axis CCLD Accelerometer

  • mass : 5g, sensitivity : 1mV/ms2, frequency range : 0.1 to 8KHz. Measuring range : 700G
  • High-temperature rated up to 180 degree Celsius

8340 1-axis CCLD Accelerometer

  • mass : 775g, sensitivity : 1020mV/ms2, frequency range : 0.1 to 1.5KHz. Measuring range : 0.5G
  • Ultra-high sensitivity for seismic measurements

4524-B 3-axis CCLD TEDS Accelerometer

  • mass : 4.8g, sensitivity : 10mV/ms2, frequency range : 0.2 to 5KHz(X). Measuring range : 50G
  • With a slit for easy mounting when used with a clip

4528-B 3-axis CCLD TEDS Accelerometer

  • mass : 6g, sensitivity : 1mV/ms2, frequency range : 0.3 to 12.8KHz(Z). Measuring range : 510G
  • High-temperature rated up to 165 degree Celsius

4515-B 3-axis CCLD TEDS Seat Accelerometer

  • mass : 345g, sensitivity : 1mV/ms2, frequency range : 0.25 to 900KHz, Measuring range : 50G
  • For whole-body vibration measurements

4393 1-axis Piezoelectric Accelerometer

  • mass : 2.4g, sensitivity : 0.316pC/ms2, frequency range : 0.1 to 16.5KHz. Measuring range : 5000G
  • High-temperature rated up to 250 degree Celsius; wide measurement range

4383 1-axis Piezoelectric Accelerometer

  • mass : 17g, sensitivity : 3.16pC/ms2, frequency range : 0.1 to 8.4KHz. Measuring range : 2000G
  • High-temperature rated up to 250 degree Celsius; for vibration test rigs

8309 1-axis Piezoelectric Accelerometer

  • mass : 3g, sensitivity : 0.004pC/ms2, frequency range : 1 to 54KHz. Measuring range : 15000G
  • For high-frequency vibration and shock testing

4527-C 3-axis Piezoelectric Accelerometer

  • mass : 6g, sensitivity : 0.316pC/ms2, frequency range : 1 to 12.8KHz(Z). Measuring range : 15000G
  • High-temperature rated up to 230 degree Celsius

Vibration Calibrators

4294 Vibration Calibrator

  • Vibration level: 10 m/s², Frequency: 159.15 Hz
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