Buzz, Squeak, & Rattle Measurement Devices

BSR Checker

Overview

BSR Checker provides means to detect stick-slip noise on a vehicle assembly. The ergonomic design allows you to press down the part under test with sensitive thumb-down design while an embedded load cell records the applied force and an embedded microphone listens and analyses generated BSR signal. BSRTools is a set of different software and hardware tools, each focusing on measuring, evaluating, and identifying various stick-slip noise.

Features

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Hardware

  • Intuitive one-hand thumb-down grasp device for sensitive manipulation
  • Shock-absorber non-slip tip for better feeling of force response
  • LCD indicating SPL and force value
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Software(Real-time)

  • Displaying SPL and Force Level
  • Pass / Fail Test
  • Tracking of Test History
  • User calibration of microphone and load cell sensors
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Software(Data viewer)

  • FFT analysis of SPL
  • Component quality report

Specifications

Sensor 1 – Microphone
Mic. Type Electret Microphone
Number of Mic. 1
Stabdard Power 4.5 V DC
Sensor 2 – Load Cell
Rated Capacity 20 kgf
Rated Output 0.7 ~ 1.5 mV/V
Operating Temperature -20 ~ 80 ℃
Permission Overload 150 %
Limit Overload 300 %
Data Acquisition and Processing
Sampling Rate Max. 41.1 kS/s
Meas. Algorithm Simple Trigger
Meas. Mode Triggering
Physical Characteristics
Weight 200 g
Dimension 130 x 110 x 30 (mm)

Applications

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Quantitative evaluation method instead of previously used subjective evaluation

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Measuring vehicle noise which occurs in excited body or various components joints

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Assembly condition check in end of line tests

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