Table of Contents
Advertisement
www.ti.com
1
Overview
There are various types of accelerometers available with different measurement ranges, thresholds,
precision, and accuracy, but in general, they all convert mechanical vibration into an electrical signal,
which can then be converted to acceleration.
The DRV-ACC16-EVM can measure acceleration up to 16 g ("g" is the acceleration due to Earth's gravity
2
or 9.81 m/s
). The EVM converts the acceleration from mechanical movement to mV at a rate of 57 mV
per g
. This means that every 57 millivolts of peak voltage equals 1 g of peak acceleration and 114
peak
mV
equals 2 g's of peak acceleration.
peak
1.1
Required Equipment and Materials
•
DRV-ACC16-EVM accelerometer board
•
Micro-USB cable for power
•
Oscilloscope for measuring voltage
•
Adhesive transfer tape (see
1.2
Quick Start Connections
VDD
USB Power
1. Attach the small accelerometer board to the vibrating object
2. Connect an oscilloscope to test points X, Y, and/or Z
3. Provide USB 5-V power
1.3
DRV-ACC16-EVM Specifications
Table 1
lists the DRV-ACC16-EVM specifications.
Board Size (Total)
Board Size (Accelerometer Only)
Cable / Flex Length
Interface
VDD
Acceleration Range
Bandwidth (X, Y channels)
Bandwidth (Z channel)
Noise Density
Conversion Ratio
DC Offset (at 0 g)
Typical Temperature Dependency (-25°C to 70°C)
SLOU402 – June 2015
Submit Documentation Feedback
Mounting
Guidelines)
GND
GND
X
Y
Connect Oscilloscope Probes to X, Y, of Z Axis
Figure 1. Board Connections
Table 1. DRV-ACC16-EVM Specifications
Copyright © 2015, Texas Instruments Incorporated
GND
Z
Value
15 x 290
16.6 x 15
203
Analog
3.5 – 5.5
±16
1600
550
300
57
1.5
< 3
DRV-ACC16-EVM Accelerometer User's Guide
Overview
Accelerometer
Attach Small Board to
Vibrating Object Using
Adhesive Tape on the
Bottom
Units
mm
mm
mm
-
V
g
peak
Hz
Hz
µg / √Hz rms
mV
/ g
peak
peak
V
mg
peak
3
Advertisement
Table of Contents
