2-20 Accelerometer – Unamplified
Model 3052
PC Board Mountable Accelerometer
Millivolt Output
Integral Temperature Compensation
Vibration/Shock Monitoring
Modal Analysis
Motion Control
Crash Testing
Aerospace
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 ●
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
used to bolt the sensor to the mounting location see the Model
3058. For uncompensated accelerometers, please refer to the
Models 3022 and 3028.
PC Board Mountable Accelerometer Model 3052
Accelerometer – Unamplified 2-21
April 2000
CALIBRATION DATA
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 FUNCTION
1GROUND
2ICS USE ONLY
3SUPPLY
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
Model 3052 PC Board Mountable Accelerometer
2-22 Accelerometer – Unamplified
PERFORMANCE SPECIFICATIONS
Supply Voltage: 5.0 VDC
Ambient Temperature: 25°C (Unless otherwise specified)
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. 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.
PARAMETERS
RANGE
UNITS NOTES±2g ±5g ±10g
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
PARAMETERS
RANGE
UNITS NOTES±20g ±50g ±100g
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
PC Board Mountable Accelerometer Model 3052
Accelerometer – Unamplified 2-23
April 2000
DIMENSIONS
ORDERING INFORMATION
LTR 2 - 10 g 20 - 500 g
“A ” D I M 0.300 ± 0.005
[7.62 ± 0.13]
0.265 ± 0.005
[6.73 ± 0.13]
“B” DIM 0.250 ± 0.005
[6.35 ± 0.13]
0.240 ± 0.005
[6.10 ± 0.13]
“C” DIM 0.032 ± 0.004
[0.81 ± 0.10]
0.032 ± 0.004
[0.81 ± 0.10]
3052 - 005 - P
Electrical Connection (P = Pins)
Acceleration Range
Model
Feel free to contact customer service with any questions at
Toll free 1(800)745-8008; Phone (757)766-1500; Fax (757)766-4297
