Catalogue Piezo Actuators
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P-B4D • P-S41
Preloaded Open- & Closed-Loop Piezo Translators (LVPZT)
tion sensors and operate with PI servo-control electronics see page 4-19 ff. and page 4-31 ff. for details).
Design
These translators are equipped with highly reliable multilayer PZT ceramic stacks protected by a non-magnetic stainless steel case with internal spring preload. The standard transla­tor tip and base have tapped holes. Select the P-840.95 ball tip option to help decouple off-axis or torque loads from the translator.
Mounting
For push/pull forces up to 5 N, the translator can be mounted by clamping around the case. For larger forces, the translator must be mounted by the base. For positioning of magnetic parts the P-176.20 magnetic adapter can be screwed into the translator tip. For more mounting guidelines see page 1-48.
Ordering Information
P-841.10
Closed-Loop LVPZT Translator, 15
P-841.20
Closed-Loop LVPZT Translator, 30 Mm
P-841.30
Closed-Loop LVPZT Translator, 45 Mm
P-841.40
Closed-Loop LVPZT Translator, 60 Mm
P-841.60
Closed-Loop LVPZT Translator,
90 Mm
P-840.10
Open-Loop LVPZT Translator, 15 Mm
P-840.20
Open-Loop LVPZT Translator, 30 Mm
P-840.30
Open-Loop LVPZT Translator, 45 Mm
P-840.40
Open-Loop LVPZT Translator, 60 Mm P-840.60
Open-Loop LVPZT Translator, 90 Mm Ask about custom designs!
■ Displacement to 90 urn
■ Pushing Forces to 1000 N
■ Preloaded for Pulling Forces to 50 N
■ Sub-msec Response
■ Sub-nm Resolution
■ Options: Ball Tip, Vacuum Versions
P-840 and P-841 preloaded piezo translators are high-reso­lution linear actuators for static and dynamic applications. They provide sub-millisecond response and sub-nanometer resolution. The internal spring preload makes them ideal for dynamic applications.
High Accuracy in Closed-Loop Operation
The P-840 is specifically de­signed for open-loop opera­tion. For highest accuracy, the P-841 closed-loop version includes integrated ultra-high­resolution strain gauge posi-
Technical Data
Closed-Loop
Models
P-841.10
P-841.20
P-841.30
P-841.40
P-841.60
Open-loop travel @ 0 to 100 V
15
30
45
60
90
Closed-loop travel
15
30
45
60
90
* Integrated feedback sensor
SGS
SGS
SGS
SGS
SGS
** Closed-loop / open-loop resolution *** Static large-signal stiffness
0.3 / 0.15 57
0.6 / 0.3 27
0.9 / 0.45 19
1.2 / 0.6 15
1.8 / 0.9
10
Push/pull force capacity
1000 / 50
1000/ 50
1000 / 50
1000 / 50
1000 / 50
Torque limit (at tip)
0.35
0.35
0.35
0.35
0.35
Electrical capacitance
1.5
3.0
4.5
6.0
9.0
Dynamic operating current coefficient (DOCC)
12.5
12.5
12.5
12.5
12.5
Unloaded resonant frequency (f0)
18
14
10
8.5
6
Standard operating temperature range
-20 to +80
-20 to +80
-20 to +80
-20 to +80
-20 to +80
Voltage connection
VL
VL
VL
VL
VL
Sensor connection
L
L
L
L
L
Weight without cables
20
28
46
54
62
Material case / end pieces Length L
N-S
32
N-S
50
N-S 68
N-S 86
N-S 122
Recommended amplifier/controller (codes explained p. 1-3)
C, D ,G , H
C, D ,G , H
C, D ,G , H
C, D ,G , H
C, D ,G , H
Application Examples
Static and dynamic ^ positioning
§ Disk drive testing
CO
~ Smart industrial structures J ■ Adaptive mechanics
o
f ■ Vibration cancellation
eg
| Switching
o
I ■ Laser tuning ^ Patch clamping
o
| For more examples E see page 1-5
_ 1-34
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