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DRV-ACC16-EVM Accelerometer User's Guide
The DRV-ACC16-EVM is a three-axis accelerometer for use in lab acceleration or vibration testing of
haptic feedback systems. The accelerometer allows vibrations to be quantified making haptic feedback
evaluation, reporting, and comparisons easier.
This document contains instructions and general guidelines for using the DRV-ACC16-EVM and
measuring acceleration.
Features
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Measure X, Y, and Z acceleration simultaneously using three independent analog outputs
•
Connect to oscilloscope for simple acceleration readings
•
Up to 16 g
acceleration measurements
peak
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Small size and flex cable, minimize interference with natural motion of the system
Kit Contents
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DRV-ACC16-EVM accelerometer board
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Micro-USB cable for power
•
Texas Instruments Black Carrying and Storage Case
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SLOU402 – June 2015
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Copyright © 2015, Texas Instruments Incorporated
SLOU402 – June 2015
DRV-ACC16-EVM Accelerometer User's Guide
User's Guide
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Summary of Contents for Texas Instruments DRV-ACC16-EVM
- Page 1 SLOU402 – June 2015 DRV-ACC16-EVM Accelerometer User’s Guide The DRV-ACC16-EVM is a three-axis accelerometer for use in lab acceleration or vibration testing of haptic feedback systems. The accelerometer allows vibrations to be quantified making haptic feedback evaluation, reporting, and comparisons easier.
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Page 2: Table Of Contents
....................Screw Hole Dimensions ................Schematic, Layout, and Bill of Materials List of Figures ......................Board Connections ................3M Tape on Backside of DRV-ACC16-EVM ................Attach Accelerometer to Vibrating Object ................DRV-ACC16-EVM - Measurement Board ....................AC-Coupled Accelerometer ..................Accelerometer Conversion Voltage ...................... -
Page 3: Overview
The DRV-ACC16-EVM can measure acceleration up to 16 g (“g” is the acceleration due to Earth’s gravity or 9.81 m/s ). -
Page 4: Getting Started
The surface should mimic the object’s final operating environment. See Mounting an Actuator for Testing for additional information. DRV-ACC16-EVM Accelerometer User’s Guide SLOU402 – June 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 5: Drv-Acc16-Evm - Measurement Board
3. Connect an oscilloscope to the X, Y, and/or Z axis test points on the measurement board. See Determining the Axis of Vibration for additional instructions. Figure 4. DRV-ACC16-EVM - Measurement Board 4. Apply power to the board by connecting the micro-USB cable to a USB power source such as a computer or USB charger. -
Page 6: Converting Voltage To Acceleration
The output voltage of the three accelerometer channels has a DC offset of 1.5 V at 0 g. The channels of the DRV-ACC16-EVM can be AC coupled to only show changes in acceleration. This is recommended for measuring the acceleration of haptic systems. -
Page 7: Determining The Axis Of Vibration
Acceleration can be observed on the Y and Z accelerometer channels. Oscilloscope Figure 8. ERM Axes of Vibration Figure 9. Y and Z Axes Acceleration Measurement SLOU402 – June 2015 DRV-ACC16-EVM Accelerometer User’s Guide Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 8: Direction Lra
The piezo bender and mass will move side-to-side when a high- voltage sine wave is applied to the module’s input terminals. Oscilloscope Figure 12. Piezo Module Figure 13. X Axis Acceleration Measurement DRV-ACC16-EVM Accelerometer User’s Guide SLOU402 – June 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 9: Mounting Guidelines
Finally, measure the acceleration of the block on the foam and compare it to when a person holds it in their hand. SLOU402 – June 2015 DRV-ACC16-EVM Accelerometer User’s Guide Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 10: Example Waveforms
The peak-to-peak voltage of the accelerometer voltage waveform is divided by 2 to obtain the peak voltage and then divided by 57 mVp to calculate the acceleration. DRV-ACC16-EVM Accelerometer User’s Guide SLOU402 – June 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 11: Screw Hole Dimensions
The accelerometer board can be mounted using the screw holes shown in Figure Figure 17 is the screw hole mechanical footprint. 350 mil (8.89 mm) 428 mil (10.87 mm) Figure 17. Screw-Hole Footprint SLOU402 – June 2015 DRV-ACC16-EVM Accelerometer User’s Guide Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 12: Schematic, Layout, And Bill Of Materials
LED1 Green TLV70030DCKT 600 ohm 1.50k ZX62-B-5PA(11) XOUT 0.01µF YOUT 0.01µF ZOUT 0.1µF 0.01µF Sense Board ADXL326BCPZ Accelerometer Board Figure 18. DRV-ACC16-EVM Schematic DRV-ACC16-EVM Accelerometer User’s Guide SLOU402 – June 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 13: Drv-Acc16-Evm Top Overlay
Schematic, Layout, and Bill of Materials www.ti.com Layout Figure 19 through Figure 25 display the DRV-ACC16-EVM printed-circuit board (PCB) layout. Figure 19. DRV-ACC16-EVM Top Overlay Figure 20. DRV-ACC16-EVM Figure 21. DRV-ACC16-EVM Top Layer Figure 22. DRV-ACC16-EVM Bottom Layer Figure 23. DRV-ACC16-EVM Bottom Solder SLOU402 –... -
Page 14: Drv-Acc16-Evm Drill Drawing
Schematic, Layout, and Bill of Materials www.ti.com Figure 24. DRV-ACC16-EVM Drill Drawing Figure 25. DRV-ACC16-EVM Board Dimensions DRV-ACC16-EVM Accelerometer User’s Guide SLOU402 – June 2015 Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 15: Drv-Acc16-Evm Fabrication Drawing
Schematic, Layout, and Bill of Materials www.ti.com Figure 25 illustrates the DRV-ACC16-EVM fabrication drawing. Figure 26. DRV-ACC16-EVM Fabrication Drawing SLOU402 – June 2015 DRV-ACC16-EVM Accelerometer User’s Guide Submit Documentation Feedback Copyright © 2015, Texas Instruments Incorporated... -
Page 16: Bill Of Materials
Schematic, Layout, and Bill of Materials www.ti.com Bill of Material (BOM) Table 5 lists the DRV-ACC16-EVM bill of materials (BOM). Table 5. Bill of Materials Designator Value Description Package Reference Part Number Manufacturer 0.1uF CAP, CERM, 0.1 µF, 6.3 V, +/- 10%, X5R, 0402... - Page 17 STANDARD TERMS AND CONDITIONS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, or documentation (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms and conditions set forth herein. Acceptance of the EVM is expressly subject to the following terms and conditions.
- Page 18 FCC Interference Statement for Class B EVM devices NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
- Page 19 【無線電波を送信する製品の開発キットをお使いになる際の注意事項】 開発キットの中には技術基準適合証明を受けて いないものがあります。 技術適合証明を受けていないもののご使用に際しては、電波法遵守のため、以下のいずれかの 措置を取っていただく必要がありますのでご注意ください。 1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室等の試験設備でご使用 いただく。 2. 実験局の免許を取得後ご使用いただく。 3. 技術基準適合証明を取得後ご使用いただく。 なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとします。 上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。 日本テキサス・イ ンスツルメンツ株式会社 東京都新宿区西新宿６丁目２４番１号 西新宿三井ビル 3.3.3 Notice for EVMs for Power Line Communication: Please see http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page 電力線搬送波通信についての開発キットをお使いになる際の注意事項については、次のところをご覧くださ い。http://www.tij.co.jp/lsds/ti_ja/general/eStore/notice_02.page SPACER EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS.
- Page 20 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2015, Texas Instruments Incorporated...
- Page 21 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
- Page 22 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments DRV-ACC16-EVM...
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