GRAS 67SB
Blast Probe Microphone according to ANSI S12.42

The 67SB Blast Probe is designed as a reference microphone for impulse measurements according to the ANSI S12.42 standard. The 67SB can measure impulse signals with an A-duration of 0.5 ms ≤ impulse ≤ 2.0 ms, and it has a working range of 10 Hz – 20 kHz

GRAS 67SB Blast Probe Microphone according to ANSI S12.42

The 67SB Blast Probe is designed as a reference microphone for impulse measurements according to the ANSI S12.42 standard. The 67SB can measure impulse signals with an A-duration of 0.5 ms ≤ impulse ≤ 2.0 ms, and it has a working range of 10 Hz – 20 kHz. The 1/8” reference microphone inside the 67SB is ideally suited for capturing impulsive signals with a very fine time resolution. This microphone has an upper limit of 174 dB in the dynamic range.

The 67SB is equipped with a 1/8″ reference microphone which is designed to capture impulsive noise with a very short duration. The 67SB is provided with a 1/4″ threaded hole for monting the 67SB directly on a tripod e.g. AL0006.

The design and concept of the 67SB, and the microphone and preamplifier, comply with the following standards:
• ANSI S12.42 – “Methods for the Measurement of Insertion Loss of Hearing Protection Devices in Continuous or Impulsive Noise Using Microphone-in-Real Ear or Acoustic Test Fixture Procedures”
• IEC Standard 61094-1 – “Specifications for Laboratory Standard Microphones”

The 67SB has a length of 410 mm.

GRAS 67SB Blast Probe Microphone according to ANSI S12.42

GRAS 67SB Blast Probe Microphone according to ANSI S12.42 datasheet

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