Accelerometers SV serie

Accelerometers
SV serie
♦ vibration measurement and analysis
♦ industrial shock and acceleration measurement
♦ vibration of building
♦ seismic measurement
♦ machine condition monitoring
vibration machines control
Application:
The piezoelectric vibration sensors are determined for general use in systems for vibration
measurements and machine condition monitoring. It features low sensibility to temperature and magnetic
field fluctuations, low transverse sensitivity, high resonance frequency and high stability. The internal
system is designed as a shear type with Disc Shear® construction (patent pending). It measures the
acceleration in the sensor's axis direction.
Purpose:
17
The external casing of the sensors is made of austenitic stainless steel. A coaxial connector with the 1032 UNF thread is used for the outlet. The active element of the sensor is a piezoelectric disc of annulose
shape which is shear stressed. Compensation of primary pyroelectric charge which is generated in the
piezoelectric element during temperature changes, is guaranteed through a special system of electrodes
and their suitable interconnection. Seismic mass and dimensions of the piezoelectric element are
selected in order to achieve good sensibility at high resonance frequency and sufficient shock resistivity.
The sensor is attached to the measured object with an metric screw (UN threads on request). Typical
assembly is shown on figure 2.
5,5
SV128
17
M5
Fig. 2 Typical design of the accelerometer SV series
KATALOGOVÝ LIST
1
KAT01SV/13
Accelerometers
SV serie
Assembly and application instructions
relative change [%]
The SV type sensors are determined for permanent or temporary assembly on measured objects. Use a
spanner to attach the sensor with an metric screw. Select the place of vibration measurement to avoid
influence of a strong magnetic field or rapid temperature variations. The dynamic deformation of the base
should be as low as possible. Apply silicone grease on contact area before the sensor is attached onto
the measured surface. The grease will guarantee undisturbed transmission of vibrations into the sensor
even at high amplitudes and high frequencies. Only viscous forces are able to transmit action of the
sensor's inertial mass force. We recommend to use a measuring tip or a magnetic clamp for short-time
and informative measurements only.
25
Charge sensitivity
20
15
10
5
-50
50
100
150
-5
200
250
temterature [°C]
-10
rel. change [%]
Fig. 3 Temperature dependance of the charge sensitivity of sensors
50
Capacity
40
30
20
10
-50
50
100
-10
150
200
250
temperature [°C]
Fig. 4 Temperature dependance of the charge capacity of sensors
KATALOGOVÝ LIST
2
KAT01SV/13
g
%
kHz
mass
transverse sensitivity
resonance frequency (mounted 180g)
-
outlet
mounting thread / length
mounting stud
1. in accordance with ANSI S2.11-1969
2. LFF = 3 Hz
3. from mounting surface at central axis
Dimensions:
-
electrical connector
mm
g
seismic mass
centre of seismic mass gravity
-
sensing element
3
-
material
ms /K
-2
ms /T
°C
2
temperature range
temperature transient sensitivity
magnetic sensitivity
GΩ
min. leak resistance (at room temp.)
-2
kms
max. shock acceleration
-2
pF
capability
frequency range
pC/ms
charge sensitivity
stainelss steel
piezoelectric
stainelss steel
piezoelectric
hl. 5,5
17
23
(2x) M5 x 10 mm, ocel
(2x) M5
hl. 5,5
17
17
M5 x 10 mm, ocel
M5
axial
coaxial 10-32 UNF
coaxial 10-32 UNF
radial
8,5
14
10
-40 ÷ 240
-40 ÷ 240
10
0,2
2
10
10
-
22
2
24
400
3,1
Disc Shear ®
charge/voltage
piezoelectric
SV 128
0,2
2
10
10
-
22
2
35
400
3,1
Disc Shear ®
design
-2
charge/voltage
output
SV 100
piezoelectric
unit
accelerometer type
Parameter 1
SENSOR
3
HERE
KATALOGOVÝ LIST
SV100
10
400
83
2
16
10
10
2
0,2
-40 ÷ 240
stainelss steel
piezoelectric
30
13,5
coaxial 10-32 UNF
axial
3,1
400
32
2
22
10
10
2
0,2
-40 ÷ 240
stainelss steel
piezoelectric
10
14
coaxial 10-32 UNF
radial
17
21.5
M5 x 10 mm, ocel
24
26.4
M5 x 10 mm, ocel
hl. 5,5
Disc Shear ®
Disc Shear ®
M5
charge/voltage
charge/voltage
hl. 5,5
piezoelectric
piezoelectric
M5
SV 162
SV 129
Accelerometers
SV serie
SW24
SV162
SV129
129xxx
SV128
KAT01SV/13
KATALOGOVÝ LIST
%
kHz
transverse sensitivity
resonance frequency (mounted 180g)
1.
2.
3.
g
mass
4
-
-
outlet
mounting thread / length
mounting stud
Dimensions:
30
(4x) M4/10mm
-
radiial
coaxial 10-32 UNF
18
10
piezoelectric
stainelss steel
-40 ÷ 240
0,2
2
10
5
1Hz ÷ 4kHz
-
3
99
400
3,1
27,5
in accordance with ANSI S2.11-1969
LFF = 3 Hz
from mounting surface at central axis
-
electrical connector
mm
g
seismic mass
centre of seismic mass gravity
-
sensing element
3
-
material
ms /K
-2
ms /T
°C
2
temperature range
temperature transient sensitivity
magnetic sensitivity
GΩ
min. leak resistance (at room temp.)
-2
kms
max. shock acceleration
-2
pF
capability
frequency range
pC/ms
charge sensitivity
Disc Shear ®
design
-2
charge/voltage
output
SV 155
piezoelectric
unit
accelerometer type
Parameter 1
7
No. 156XXX
SV156
26
60
-
M8
axial
coaxial 10-32 UNF
9,5
10
piezoelectric
stainelss steel
-40 ÷ 240
0,2
2
10
10
-
22
2
60
400
3,1
Disc Shear ®
charge/voltage
piezoelectric
SV 156
7
No. 164XXX
SV164
34
68
-
M8
axial
coaxial 10-32 UNF
13,5
30
piezoelectric
stainelss steel
-40 ÷ 240
0,2
2
10
10
-
18
2
131
600
10
Disc Shear ®
charge/voltage
piezoelectric
SV 164
7
No. 166XXX
35
68
-
M8
axial
coaxial 10-32 UNF
14,4
100
piezoelectric
stainelss steel
-40 ÷ 240
0,2
2
10
10
-
15
2
216
600
20
Disc Shear ®
charge/voltage
piezoelectric
SV 166
Accelerometers
SV serie
SV166
AURA Co.
M8
34
AURA Co.
M8
27
AURA Co.
M8
21
ø 4,5 (4x)
30
155xxx
SV155
ø31
KAT01SV/13