Loudspeaker Component Measurement System

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Presentation transcript:

Loudspeaker Component Measurement System Introducing….. TRUE TECHNOLOGIES LCMS Loudspeaker Component Measurement System

Loudspeaker Component Measurement System Measurement Applications Spiders and Surrounds Tweeter Domes/Compression Driver Domes Voice Coil Motors - BL(x) Assembled Drivers Raw Foam Adhesive Peel Strength* Magnet Material Property Analysis* Suitable for both R&D and QC work *Available as an option. Inquire with True Technologies LCMS

LCMS LCMS Construction and Features Precision micro-stepping stepper Motor High Resolution Force Gage High/Low Capacity Force Gage Options Frame large enough to accommodate > 12” Woofers Built in statistical analysis tools for evaluating component consistency within or between lots Built in tools to create pass/fail limits based on manually entered values or previously measured components Database Driven. Easily search for and retrieve information on previously measured parts or pass/fail standards LCMS

LCMS: Force vs. Displacement/Cms(x) curves Quick One-Directional Force vs. Deflection Measurements Most commonly used in a QC setting Typical Testing Time < 1 minute/part Excellent gage R&R performance Cms(x) curves calculated from curve fit of force vs. deflection data Force vs. Deflection Data Pass/Fail limits calculated from previously measured lots of components LCMS

LCMS: Force vs. Displacement/Cms(x) curves Quick Clamp Setup for One-Directional Force vs. Deflection Measurements. Testing a Loudspeaker Cone in QC LCMS

LCMS: Force vs. Displacement/Cms(x) curves Full Hysteresis Measurements DUT measured in both directions Most commonly used in an R&D setting Excellent tool to evaluate range of linearity and symmetry DUT measured in upward direction Kms(x) curve calculated from curve fit of upper and lower hysteresis legs DUT measured in downward direction Mirrored Kms(x) curve is displayed for evaluation of symmetry LCMS

LCMS: Force vs. Displacement/Cms(x) curves Full Hysteresis Measurements Testing a Spider with ID fully clamped for bi-direction testing LCMS

LCMS: Force vs. Displacement/Cms(x) curves Tools for comparing measurements to hanging mass legacy standards Enter pass/fail upper lower displacement limits for one or multiple reference masses DUT out of spec at 500 gram reference mass DUT in spec at 200 gram reference mass LCMS

LCMS: Force vs. Displacement/Cms(x) curves Tools for evaluating lots of components and creating pass/fail limits Control how limits are displayed and enforced Measurement fliers can be removed from the analysis Manually edit data for individual cells or for ranges Choose the type of statistical analysis and set preliminary offsets Transfer statistical limit lines to pass/fail grid Limits can be edited as absolute values or as offsets from the group average Data can be copied to/pasted from the Windows clipboard for external data manipulation LCMS

LCMS: Force vs. Displacement/Cms(x) curves Tools for evaluating lots of components and creating pass/fail limits Viewing filters allow hiding and coloring of curves Set how to display new measurements Assign groups #s to different lots of DUTs for easy comparison/analysis Limit curves expanded manually above 5mm LCMS

LCMS: Force vs. Displacement/Cms(x) curves Tools for evaluating lots of components and creating pass/fail limits Change horizontal axis to view vs. measurement # Set deflection to view cross section of measurement group This view shows the force at 10mm for 13 different parts. Multiple files can be opened to compare different lots of parts. LCMS

LCMS: Voice Coil Motors BL(x) curves measured using a constant current source User provides dimensional data LCMS

LCMS: Component Database Easy-to-Use and highly flexible built in database Database fields are setup by the user with built in tools Database setup service included if desired Click on a row to open the measurement or pass/fail standard Drop down selection during file save forces consistent data entry for easy searching later Set search terms to narrow list of past measurements or pass/fail standards Pictures, BOMS, part history, comments, etc. can be stored with the component measurement Export/Import of pass/fail standards provides easy sharing between suppliers/customer LCMS

Loudspeaker Component Measurement System Contact: True Technologies 8309 West Ridge Drive Pleasant Prairie, WI 53158 USA +1-262-694-2573 rtrue@true-technologies.com The user’s manual can be found online for more detailed information: www.true-technologies.com LCMS