Endevco® model 2220E Miniature High Temperature Piezoelectric Accelerometer0 pages

Model 2220E
Piezoelectric accelerometer
Features

Description

• NEW! 2220E-R available as replacement sensor
• High temperature (260°C)
• Miniature design
• 360° cable orientation
• Hermetically sealed
• Small-motor testing, APU’s, hydraulic actuators

The Endevco® model 2220E is a miniature piezoelectric
accelerometer designed specifically for high temperature
vibration measurement on mini-structures and small
objects. The unit is hermetically sealed and ideal for use in
extreme environments. Its light weight (3.1 gm) effectively
eliminates mass loading. The accelerometer is a selfgenerating device that requires no external power source
for operation.
Model 2220E features Endevco’s Piezite® type P-8
crystal element operating in annular shear mode. This
configuration exhibits excellent output sensitivity stability
over time. Signal ground is connected to the outer case of
the unit. When used with the supplied isolated mounting
screw assembly, the accelerometer is electrically isolated
from ground. A specially designed, low-noise coaxial cable
is supplied for error-free operation. The transducer utilizes
a centrally located thru bolt, allowing 360° cable orientation.
The unit may also be mounted with an adhesive.
Endevco signal conditioner models 133, 2775B, 2771C, or OASIS 2000 computercontrolled system are recommended for use with this high-impedance accelerometer.

.093
(2.36)

M3 RECEPTACLE
MATES WITH ENDEVCO
3053 CABLES

DIA

TYPICAL TEMPERATURE RESPONSE

20
15

TYPICAL CAPACITANCE

10

% DEVIATION

.375
DIA
(9.53)

5
CHARGE SENSITIVITY

UNIT IDENTIFICATION
AND SERIAL NUMBER

.17
(4.3)

.281
(7.14)

-5

-100

MOUNTING SCREW AND WASHER
2-56 UNC-2A THD
(INSULATED CONFIGURATION SHOWN)

0

100

(-73)

200

(38)

300

400

(149)

20
15
10

.12
(3.0)
.16
(4.1)

MOUNTING SURFACE
WASHER (USED WITH INSULATED
MOUNTING SCREW ASSEMBLY)

.312
(7.92)

% DEVIATION

.23
(5.8)

-10
500
(260)

TEMPERATURE oF ( oC)
TYPICAL AMPLITUDE RESPONSE

.34
(8.6)

0

5
0
-5
-10
-15

STANDARD TOLERANCE
INCHES
(MILLIMETERS)
.XX = +/- .02 (.X = +/- .5)
.XXX = +/- .010 (.XX = +/- .25)

1

10

100

FREQUENCY IN HERTZ

-20
10000

1000

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