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High SPL Microphone - Sound Level Meter to 184 dB

MIL-STD-1474E DAQ - Microphone for MIL-STD-1474E

High Speed DAQ - 2 MHz Sampling Rate - 24 Bit ADC - Anti Aliasing Filter

High SPL Microphone – Here, we specialize in measuring the noise of intense sounds such as gunshots and rocket launches.

Our state-of-the-art microphones are designed to accurately capture even the loudest and most powerful noises.

We understand that accurate noise measurements are essential for a variety of industries, from aerospace to research.

Our team of experts is dedicated to providing you with precise and reliable data to meet your specific needs.

Whether you need to measure a single shot or a series of rocket blasts, we have the tools and expertise to get the job done.

MIL-STD-1474E Measurement

High SPL measurement microphone system according to MIL-STD-1474E.

This presentation illustrates a high-level microphone measurement using the LTTsmart NVH SET at a sampling rate of 1000 Hz with 24-bit ADC resolution.

It includes the necessary anti-aliasing filters and IEPE sensor power supply.

186 dB - IEPE Microphone

ultrasonic microphone

1/4″ microphone

WS3P acc to IEC 61094-4

Pressure field 

3.5Hz to 70 kHz

60 dBA to 186 dB

pre-polarized

Price: 2105 €

168 dB - IEPE Microphone

ultrasonic microphone

1/4″ microphone

WS3F acc to IEC 61094-4

Free field 

5Hz to 100 kHz

30 dBA to 168 dB

pre-polarized

Price: 1865 €

179 dB - IEPE Microphone

1/4″ microphone

0.35 mV/Pa

Class 1 – IEC 61672

Free Field

20 Hz to 30 kHz

54 dBA to 179 dB

Price: 980 €

High Speed DAQ - 2 MHz Sampling Rate - 24 Bit ADC - Anti Aliasing Filter

LTTsmart enables the acquisition of measurement data for the most demanding applications in industrial metrology.

The 24-bit analog-to-digital converter features a sampling rate of up to 2 MHz and anti-aliasing filters.

Each channel has its own ADC, ensuring phase-accurate signal acquisition.

The LTTsmart DAQ is equipped with various inputs, which are switchable in the standard version. These include IEPE sensor inputs, charge inputs, strain gauge inputs, and counter inputs. The counter inputs are designed for high-precision rotor analysis.

These features guarantee high accuracy, particularly in the analysis of impact tests, gas explosions, and MIL-STD-1474E firing sequences from military weapon systems.

The 2-channel LTTsmart measurement data acquisition system is supplied with the NVH Analysis Pro software.

LTTsmart NVH-SET

MIL-STD-1474E DAQ IEPE DAQ Charge DAQ Strain Gauges DAQ

ultra fast, flexible and precise

Features

  • Data acquisition system with 2 analog inputs, expandable to 16 channels
  • Bandwidth: DC to 900 kHz per channel
  • 2 MHz // 24 Bit ADC per channel (optional 4 MHz)
  • ±500 mV and ±10 V AC/DC
  • Optional: ±90 V (mid voltage) or 1000Vrms (high voltage)
  • Extremely high precision: ±(0.015%·Signal + 015%·Range)
  • ICP®/IEPE with 4 mA supply
  • Charge input
  • Pulse/Counter Inputs with 20 ns resolution
  • Strain-Gauge
  • 5 kV galvanic isolation
  • USB 3.0 Interface
  • Digital-I/O (LVCMOS/LVTTL 0 V to 3.3 V)
  • SyncUp/SyncDown- Interface to cascade multiple devices
  • NVH Analyzer Pro Software
MIL STD 1474 Test

We would like to propose a method for measuring the noise level of a gun and the vibration at the gun at the same time.

To achieve this, we suggest using measuring microphones and accelerometers with a low sensitivity to measure the high sound pressure levels and the high mechanical shock.

We are pleased to offer a measurement data acquisition system with an acceleration sensor, measurement microphone and software that is suitable for measuring in accordance with the MIL-STD-1474D standard.

308-HSPL-184

High SPL Sound Level Meter

Measuring range : 61 dBA~184 dB

  • Class 1 BSWA 308 sound level meter
  • Conforms to IEC 61672-1:2013, ANS I S1.4 1983 and ANSI S1.43 1997
  • Realtime 1/1 and 1/3 octave according to IEC 61260 1:2014 and ANSI S1.11 2004
  • Measuring range : 61dBA~184dBA ( with MK 342 E )
  • A measurement range to cover the dynamic range 123dB BSWA 308 ) / 122dB BSWA 309
  • Frequency weighting : A/B/C/Z. Time Weighting Fast Slow Impulse
  • 3 profiles and 14 user-defined measurements are calculated in parallel with different frequency/time weightings
  • Calculation of SPL, LEQ, Max, Min, Peak, SD, SEL, E
  • View LN statistics and time history curves
  • Custom integral period measurement, integral period up to 24h
  • High-speed ARM core with FPU (Float Point Unit) to achieve wide frequency response, wide dynamic range and low noise floor
  • 4G MicroSD card (TF card) as mass storage
  • RS 232 remote control port