Accelerometers
2-18 Accelerometer Selection Guide–Unamplified
Model 3052
• Vibration/Shock Monitoring
• Modal Analysis
• Motion Control
• Crash Testing
• Aerospace
PC Board Mountable Accelerometer
Millivolt Output
Integral Temperature Compensation
DESCRIPTION
The Model 3052 is a piezoresistive silicon accelerometer with
integral temperature compensation. It is packaged on a ceram-
ic substrate with an epoxy sealed ceramic cover and is
designed for adhesive mounting.
The accelerometer consists of a micro machined silicon
mass suspended by multiple beams from a silicon frame.
Piezoresistors located in the beams change their resistance as
the motion of the suspended mass changes the strain in the
beams. Silicon caps on the top and bottom of the device are
added to provide over-range stops. This design provides for a
very low profile, high shock resistance, durability and built-in
damping over a wide usable bandwidth. Each sensor is indi-
vidually serialized.
For an accelerometer with a mounting bracket which can
be used to bolt the sensor to the mounting location see the
Model 3058. For uncompensated accelerometers, please refer
to the Models 3022 and 3028.
FEATURES
•Adhesive Mount
•±0.5% Non-linearity (typical)
•±1.0% Temperature Performance
(Typical)
•DC Response
•Built-in Damping
•Built-in Overrange Stops
•Low Power
STANDARD RANGES
Range g Range g
±2 •±20 •
±5 •±50 •
±10 •±100 •Internet:www.msiusa.com
Tel: 1-757-766-1500
North America Toll Free: 1-800-745-8008
Fax: 1-757-766-4297
Accelerometers
Accelerometer Selection Guide–Unamplified 2-19
PC Board Mountable Accelerometer
Model 3052
Acalibration data sheet similar to the sample shown above is included with each unit. The calibration sheet
provides the measured test and calibration data for the sensor.
Figure 1. Calibration Data Sheet
CONNECTIONS
PIN NUMBER FUNCTION
1 GROUND
2ICS USE ONLY
3 SUPPLY
4 -OUTPUT
5 +OUTPUT
RESISTOR FUNCTION OHMS
R1 Rzb 10-50
R2 Rset 250-350
R3 Rlo 800-1250
R5 Rhi 7.5K-50K
R6 Rstc 3K-99K
R7 Rztc 0.15M-4M
Dec 2002
CALIBRATION DATA
Accelerometers
2-20 Accelerometer Selection Guide–Unamplified
Model 3052
PC Board Mountable Accelerometer
PERFORMANCE SPECIFICATIONS
Supply Voltage: 5.0 VDC
Ambient Temperature: 25°C (Unless otherwise specified)
RANGE
______________________________________________________________
PARAMETERS ±2g ±5g ±10g UNITS NOTES
__________________________________________________________________________________________________________________________________________________
Frequency Response [MIN] 0-250 0-300 0-400 Hz 1, 2
__________________________________________________________________________________________________________________________________________________
Mounted Resonant Frequency [MIN] 700 800 1000 Hz 1
__________________________________________________________________________________________________________________________________________________
Sensitivity (MIN/MAX) 6.0/9.0 2.4/3.6 1.2/1.8 mV/g 1, 3
RANGE
______________________________________________________________
PARAMETERS ±20G ±50G ±100G UNITS NOTES
__________________________________________________________________________________________________________________________________________________
Frequency Response [MIN] 0-600 0-1000 0-1500 Hz 1, 2
__________________________________________________________________________________________________________________________________________________
Mounted Resonant Frequency [MIN] 1500 2000 3000 Hz 1, 4
__________________________________________________________________________________________________________________________________________________
Sensitivity (MIN/MAX) 0.6/0.9 0.24/0.36 0.12/0.18 mV/g 1, 3
PARAMETERS MIN TYP MAX UNITS NOTES
__________________________________________________________________________________________________________________________________________________
Zero Acceleration Output 1 2 ±mV 1
__________________________________________________________________________________________________________________________________________________
Damping Ratio 0.4 0.7 0.9 1, 4
__________________________________________________________________________________________________________________________________________________
Non-linearity 0.5 1 ±% Span 5
__________________________________________________________________________________________________________________________________________________
Transverse Sensitivity 1 3 ±% Span
__________________________________________________________________________________________________________________________________________________
Output Resistance 2.5 3.5 6.5 kΩ
__________________________________________________________________________________________________________________________________________________
Temperature Error - Sensitivity 1.0 2.0 ±% Span 1, 6
__________________________________________________________________________________________________________________________________________________
Temperature Error - Zero 1.0 2.0 ±% Span 1, 6
__________________________________________________________________________________________________________________________________________________
Supply Voltage 5.0 10.0 VDC
__________________________________________________________________________________________________________________________________________________
Current 1, 5 mA
__________________________________________________________________________________________________________________________________________________
Output Noise 1.0 µV p-p
__________________________________________________________________________________________________________________________________________________
Output Load Resistance 5 MΩ7
__________________________________________________________________________________________________________________________________________________
Acceleration Limits (Any Direction) 20X Rated 8
__________________________________________________________________________________________________________________________________________________
Operating Temperature -40°C to +125°C
__________________________________________________________________________________________________________________________________________________
Compensated Temperature Range 0°C to +50°C
__________________________________________________________________________________________________________________________________________________
Storage Temperature -55°C to +150°C
__________________________________________________________________________________________________________________________________________________
Weight 6.5 Grams
1. Actual test data for this parameter is included on the calibration sheet included
with each sensor. A sample of this calibration sheet is shown as Figure 1.
2. The useful frequency range is defined as the range of frequencies over
which the device sensitivity is within ±5% of the DC value.
3. Positive voltage change for positive acceleration; negative voltage
change for negative acceleration.
4. For sensors having resonant frequency greater than 5 kHz, the
calibration data sheet will indicate “>5 kHz”. In addition, the damping
ratio will indicate N/A.
5. Best Fit Straight Line. For full scale ranges of 10g or less, the maximum
non-linearity is ±2%.
6. Compensated temperature range: 0°C to +50°C in reference to 25°C.
7. Prevents increase of TC-Span and sensitivity decrease due to output
loading.
8. 400g for ±2g, ±5g and ±10g versions, 20X or 2000g, whichever is
lower, for other versions.
Notes
Internet:www.msiusa.com
Tel: 1-757-766-1500
North America Toll Free: 1-800-745-8008
Fax: 1-757-766-4297
Accelerometers
Accelerometer Selection Guide–Unamplified 2-21
PC Board Mountable Accelerometer
Model 3052
DEC 2002
3052 - 005 - P
Electrical Connection (P = Pins)
Acceleration Range
Model
ORDERING INFORMATION
LTR 2 - 10 g 20 - 500 g
“A” DIM 0.300 ± 0.005 0.265 ± 0.005
[7.62 ± 0.13] [6.73 ± 0.13]
“B” DIM 0.250 ± 0.005 0.240 ± 0.005
[6.35 ± 0.13] [6.10 ± 0.13]
“C” DIM 0.032 ± 0.004 0.032 ± 0.004
[0.81 ± 0.10] [0.81 ± 0.10]
DIMENSIONS