P-244, P-245 Preloaded Open & Closed Loop Piezo Translators

  • Displacement to 120 µm
  • Pushing Forces to 2000 N
  • Pulling Forces to 300 N
  • Sub-msec Response
  • Sub-nm Resolution
  • Options: UHV, Low & High Temperature

P-244 and P-245 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 machining applications.

Standard models are specifically designed for open loop operation. For highest accuracy, select the P-177.10 closed loop option integrating ultra-high resolution strain gage position sensors for operation with PI servo control electronics (click here for details on Position Sensors and Closed Loop Operation).

P-245 models are equipped with thinner Piezo ceramic layers, providing more displacement than P-244 models in the same package. On the other hand, their maximum operating voltage is limited to -1000 V with voltages in excess of -750 V recommended only for short periods of time. 
The Piezo ceramic stack is protected by an internally spring preload stainless steel case. The standard translator tip and base have tapped holes. Select the P-244.95 ball tip option to help decouple off-axis or torque loads from the translator tip. 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-176.10 Magnetic Adapter can be screwed into the translator tip.

Application examples:
Static and dynamic positioning, optics, metrology, smart structures, precision machining, adaptive mechanics, vibration cancellation, switching, laser tuning, patch clamping, etc.

Accessories:
P-176.10 magnetic adapter with M5 threaded stud

Extension cables & connectors.

Factory Installed Options:1)
P-177.10 Closed Loop Option

P-702.10 High Temperature Option

P-702.20 Low Temperature Option

P-703.20 High Vacuum Option

P-705.00 Positive Polarity

P-244.95 Ball Tip

1) When ordering the following options, change the last digit to 7, e.g. P-244.10 to P-244.17, and list options separately.

 

P-244, P-245 Preloaded Open & Closed Loop HVPZT Translators


See "PZT Control Electronics" section for our comprehensive line of low noise, modular and OEM control electronics for computer and manual control.

TECHNICAL DATA: P-244, P-245

Models *

P-244.10

P-244.20

P-244.30

P-244.40

P-245.20

P-245.30

P-245.50

P-245.70

Units

Notes

Open loop travel @ 
0 to -1000 V

10

20

40

60

20

40

80

120

µm ± 20 %

A4

* Closed loop travel ³

10

20

40

60

20

40

80

120

µm

A5

* Integrated feedback sensor

SGS

SGS

SGS

SGS

SGS

SGS

SGS

SGS

 

B

* Closed / open loop 
** resolution

0.2 / 0.1

0.4 / 0.2

0.8 / 0.4

1.2 / 0.6

0.4 / 0.2

0.8 / 0.4

1.6 / 0.8

2.4 / 1.2

nm

C4

Stiffness

180

98

53

29

170

91

48

32

N/µm ± 20 %

D1

Force generation (blocked)

1800

2000

2100

1800

3400

3600

3800

3800

N ± 20 %

D2

Push/pull force capacity

2000 / 300

2000 / 300

2000 / 300

2000 / 300

2000 / 300

2000 / 300

2000 / 300

2000 / 300

N

D3

Torque limit (at tip)

500

500

500

500

500

500

500

500

mNm

D6

Max. operating voltage

-1500

-1500

-1500

-1500

-1000

-1000

-1000

-1000

V

A7

Electrical capacitance

25

47

89

133

95

180

340

500

nF ± 20 %

F1

Dynamic operating current coefficient (DOCC)

3

3

3

3

6

6

6

6

µA/
(Hz x µm)

F2

Unloaded resonant 
frequency (f0)

16

12

9

5.5

15

11

8

5

kHz ± 20 %

G2

Standard operating temperature range

-40 to +80

-40 to +80

-40 to +80

-40 to +80

-40 to +80

-40 to +80

-40 to +80

-40 to +80

° C

H2

Voltage connection

VH

VH

VH

VH

VH

VH

VH

VH

 

J1

* Sensor connection

L

L

L

L

L

L

L

L

 

J2

Weight without cables

59

72

102

136

59

72

102

136

g ± 5 %

K

Material case / end pieces

N-S

N-S

N-S

N-S

N-S

N-S

N-S

N-S

 

L

Length L

45

61.5

93.5

127

45

61.5

93.5

127

mm ± 0.5

 

Recommended Amplifier/Controller

B, I, J

B, I, J

B, I, J

B, I, J

B, I, J

B, I, J

B, I, J

B, I, J

 

M

* Closed loop models require the P-177.10 option and are supplied with calibration data sheets 
** Noise equivalent motion with E-507 amplifier

P-244,245 Dimensions


For mounting guidelines click here
Custom design for volume buyers

This is a legacy product that may have limited availability or may have been replaced. Ask a PI engineer for an equivalent new model.

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