Accelerometer ACH-01
ACH 01 Rev 1 www.meas-spec.com 10/07/2008
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Piezoelectric Accelerometer
Wide Bandwidth; AC Coupled
Ultra Low Power
High G Ranges
dimensions
FEATURES
•
Wide Frequency Response
•
Excellent Phase Response
•
Small Temperature Dependence
•
Wide Supply Voltage Range
•
Excellent Linearity
•
Very High Resonant Frequency
•
Wide Dynamic Range
•
Low Transverse Sensitivity
•
Wide Temperature Range
•
Low Impedance Output
•
Ultra Low Power
APPLICATIONS
•
Machine Health Monitoring
•
Model Analysis
•
Automotive Sensors
•
Appliances
•
Feedback Control Systems
The ACH-01
is an inexpensive, general
purpose accelerometer with outstanding
performance characteristics. The use of
piezoelectric polymer film in the ACH-01
provides many cost/performance advantages
that allow it to be used in a wide range of
applications where the use of traditional
accelerometer technology is impractical. It is
specifically designed for high volume
applications which require the permanent
installation of an accelerometer.
Accelerometer ACH-01
ACH 01 Rev 1 www.meas-spec.com 10/07/2008
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wiring dimensions (con’t)
performance specifications
PERFORMANCE (T=25Ε
ΕΕ
ΕC)
Symbol
Min
Typ
Max
Units
Sensitivity
M
o
7
9
11
mV/g
Lower Frequency Limit (1)
f
l
--
2
5
Hz
Upper Frequency Limit(1)
f
u
10
20
--
kHz
Equivalent Noise Floor
10Hz
100Hz
1kHz
--
--
--
130
20
6
--
--
--
Hzg/
µ
Dynamic Range
--
∀150
--
--
g
Linearity
--
--
0.1
1.0
%
Transverse Sensitivity
M
t
--
2.0
5
%
Resonant Frequency
f
o
--
35
--
kHz
Phase Deviation (∀5Ε
Limit)(6)
θ
10
--
10
kHz
Drain Voltage (6)
V+
3
--
40
Volts
Supply Current (6)
l
dss
30
--
90
µA
Output Impedance (6)
--
--
20
--
kΩ
ENVIRONMENTAL CHARACTERISTICS
Operating Temperature (2)
T
o
-40
--
85
ΕC
Storage Temperature
T
s
-40
--
85
ΕC
Maximum Shock Level
A
m
1000
--
--
g
Base Strain Sensitivity (3)
--
--
0.3
--
g/µε
Transient Temp Sensitivity (4)
--
--
0.35
--
g/ΕC
PHYSICAL CHARACTERISTICS
Weight (5) Cable
W
--
8
--
grams
(1) ∀3 dB limit (3) @ 250µε in base plane (5) Includes 40" cable and connector
(2)
∀
2 dB from nominal M
o
at 1kHz
(4) @ 3Hz LLF
(6) Typical Value
Accelerometer ACH-01
ACH 01 Rev 1 www.meas-spec.com 10/07/2008
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Performance Specifications mounting requirements
Mounting methods play a critical role in determining the overall performance of any
accelerometer. The ACH-01 is no exception. An improperly mounted accelerometer
can give erroneous results. We recommend using an Adhesive Mounting Method.
The surface should be flat. The area where the ACH-01 is to be mounted should be
thoroughly cleaned to remove any dirt or oil present on the surface. Use a quick
setting, viscous methyl cyanoacrylate adhesive such as Loctite's Black MaxJ or any
epoxy such as Devcon's 5-Minute epoxy. Apply the adhesive sparingly to one
surface following the manufacturer's directions. Apply pressure and allow the
adhesive to set. Soft adhesives, such as double-sided tape or pressure sensitive
adhesives, should not be used since they can adversely affect the ACH-01's
performance. Cable should be adhered to the surface.
There is an interface amplifier available to simplify connection to the ACH-01, the IB-
ACH-01. Please see the appropiate data sheet.
In an effort to keep the product cost low, the ACH-01 uses a ceramic substrate as the
mounting base. Because of this, the ACH-01 is susceptible to base strain and
temperature transient effects. A mechanically rigid and thermally non-conductive
mounting surface is highly recommended to limit these effects. MEAS application
engineers are available to recommend various mounting arrangements for your
specific application.
Accelerometer ACH-01
ACH 01 Rev 1 www.meas-spec.com 10/07/2008
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Performance Specifications electrical interface circuits
The
information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not
convey to the purchaser of such devices any license under the patent right
s to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice
to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for
any particular purpose, nor does
Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation
consequential or incidental d
amages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by
customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others.
ordering information
North America
Measurement Specialties, Inc.
1000 Lucas Way
Hampton, VA 23666
Sales and Customer Service
Tel: +1-800-745-8008 or
+1-757-766-1500
Fax: +1-757-766-4297
Technical Support
Email: piezo@meas-spec.com
Europe
MEAS Deutschland GmbH
Hauert 13
44227 Dortmund
Germany
Sales and Customer Service
Tel: +49 (0)231 9740 21
Technical Support
Tel: +49 (0)6074 862822
Email: piezoeurope@meas-spec.com
Asia
Measurement Specialties (China), Ltd.
No. 26 Langshan Road
Shenzhen High-Tech Park (North)
Nanshan District, Shenzhen 518107
China
Tel: +86 755 3330 5088
Fax: +86 755 3330 5099
Technical Support
Email: piezo@meas-spec.com
The accelerometer ACH-01 accommodates various electrical interface circuits. A typical example is
provided in the following figure. The ACH-01 equivalent electrical schematic is also shown.
Description Interface Model No. Part No.
Accelerometer Pins ACH-01-02 0-1000985-0
Shielded Cable
ACH-01-03
1-1001220-0
Discrete Wires
ACH-01-04
1-1001497-0
Amplifier
Amplifier Box
IB-ACH-01
1003058
