Model 3052
Vibration/Shock Monitoring
PC Board Mountable Accelerometer
Millivolt Output
Integral Temperature Compensation
Modal Analysis
Motion Control
Crash Testing
Aerospace
DESCRIPTION
The Model 3052 is a piezoresistive silicon accelerometer with
integral temperature compensation. It is packaged on a ceramic
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 individually
serialized.
For an accelerometer with a mounting bracket which can be
FEATURES
Adhesive Mount
±0.5% Non-linearity (Typical)
±1.0% Temperature Performance
(Typical)
Dc Response
Built-in Damping
Built-in Overrange Stops
Low Power
used to bolt the sensor to the mounting location see the Model
3058. For uncompensated accelerometers, please refer to the
Models 3022 and 3028.
STANDARD RANGES
Range
±2
±5
±10
g
Range
±20
±50
±100
g
●
●
●
●
●
●
2-20
Accelerometer – Unamplified
PC Board Mountable Accelerometer
CALIBRATION DATA
Model 3052
Figure 1. Calibration Data Sheet
A calibration 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.
CONNECTIONS
PIN NUMBER
1
2
3
4
5
RESISTOR
R1
R2
R3
R5
R6
R7
FUNCTION
Rzb
Rset
Rlo
Rhi
Rstc
Rztc
FUNCTION
GROUND
ICS USE ONLY
SUPPL
Y
-OUTPUT
+OUTPUT
OHMS
10-50
250-350
800-1250
7.5K-50K
3K-99K
0.15M-4M
April 2000
Accelerometer – Unamplified
2-21
Model 3052
PERFORMANCE SPECIFICATIONS
Supply Voltage: 5.0 VDC
Ambient Temperature: 25°C (Unless otherwise specified)
RANGE
PARAMETERS
Frequency Response [MIN]
Mounted Resonant Frequency [MIN]
Sensitivity (MIN/MAX)
±2g
0-250
700
6.0/9.0
±5g
0-300
800
2.4/3.6
RANGE
PARAMETERS
Frequency Response [MIN]
Mounted Resonant Frequency [MIN]
Sensitivity (MIN/MAX)
PARAMETERS
Zero Acceleration Output
Damping Ratio
Non-linearity
Transverse Sensitivity
Output Resistance
Temperature error - Sensitivity
Temperature error - Zero
Supply Voltage
Current
Output Noise
Output Load Resistance
Acceleration Limits (Any Direction)
Operating Temperature
Compensated Temperature Range
Storage Temperature
Weight
–40°C to +125°C
0°C to +50°C
–55°C to +150°C
6.5 Grams
5
20X
2.5
0.4
±20g
0-600
1500
0.6/0.9
MIN
±50g
0-1000
2000
0.24/0.36
TYP
1
0.7
0.5
1
3.5
1.0
1.0
5.0
1.5
1.0
PC Board Mountable Accelerometer
±10g
0-400
1000
1.2/1.8
UNITS
Hz
Hz
mV/g
NOTES
1, 2
1
1, 3
±100g
0-1500
3000
0.12/0.18
MAX
2
0.9
1
3
6.5
2.0
2.0
10.0
UNITS
Hz
Hz
mV/g
UNITS
±mV
NOTES
1, 2
1, 4
1, 3
NOTES
1
1, 4
±% Span
±% Span
K
Ω
±% Span
±% Span
VDC
mA
µV p-p
M
Ω
Rated
5
1, 6
1, 6
7
8
Notes
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.
3.
4.
The useful frequency range is defined as the range of frequencies over
which the device sensitivity is within ±5% of the DC value.
Positive voltage change for positive acceleration; negative voltage
change for negative acceleration.
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.
6.
7.
8.
Best Fit Straight Line. For full scale ranges of 10g or less, the maximum
non-linearity is ±2%.
Compensated temperature range: 0°C to +50°C in reference to 25°C.
Prevents increase of TC-Span and sensitivity decrease due to output
loading.
400g for ±2g, ±5g and ±10g versions, 20X or 2000g, whichever is
lower, for other versions.
2-22
Accelerometer – Unamplified
PC Board Mountable Accelerometer
DIMENSIONS
Model 3052
LTR
“A” DIM
“B” DIM
“C” DIM
2 - 10 g
0.300 ± 0.005
[7.62 ± 0.13]
0.250 ± 0.005
[6.35 ± 0.13]
0.032 ± 0.004
[0.81 ± 0.10]
20 - 500 g
0.265 ± 0.005
[6.73 ± 0.13]
0.240 ± 0.005
[6.10 ± 0.13]
0.032 ± 0.004
[0.81 ± 0.10]
ORDERING INFORMATION
3052 - 005 - P
Electrical Connection (P = Pins)
Acceleration Range
Model
April 2000
Accelerometer – Unamplified
Feel free to contact customer service with any questions at
Toll free 1(800)745-8008; Phone (757)766-1500; Fax (757)766-4297
2-23
FPGA/CPLD
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