Preloaded Open- & Closed-Loop LVPZT Translators

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Preloaded Open- & Closed-Loop LVPZT Translators

 

The product You were Looking for was moved Click Here for new Address P-840 P-841 Preloaded Open- & Closed-Loop LVPZT Translators Displacement to 90 µm Pushing Forces to 1000 N Pulling Forces to 50 N Sub-msec Response Sub-nm Resolution Options: Ball Tip, Vacuum P-840 and P-841 preloaded PZT 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. The P-840 is specifically designed for open-loop operation. For highest accuracy, the P-841 closed-loop version includes integrated ultra-high-resolution strain gauge position sensors and operate with PI servo-control electronics (see "Tutorial: Piezoelectrics in Positioning" section, see link and see link for details). 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. 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. Factory Installed Options P-703.20 High-Vacuum Option (see link) P-840.95 Ball Tip (see link) Accessories P-176.20 Magnetic Adapter with M3 Threaded Stud, see link Extension cables & connectors: see link in the "PZT Control Electronics" section. Static and dynamic positioning Disk drive testing Smart structures Adaptive mechanics Vibration cancellation Switching Laser tuning Patch clamping For more examples see link P-840, P-841 PZTs (DIP switch for size comparison) P-840, P-841, dimensions (in mm). See table for length, L Response of a P-841.10 to a 3 nm peak-to-peak square wave control input signal, measured with servo-control bandwidth set to 240 Hz and 2 msec settling time. Note the crisp response to the square wave control signal.

Technical Data

	Closed-Loop					Open-Loop
Models	P-841.10	P-841.20	P-841.30	P-841.40	P-841.60	P-840.10	P-840.20	P-840.30	P-840.40	P-840.60	Units	Notes see link
Open-loop travel @ 0 to 100 V	15	30	45	60	90	15	30	45	60	90	µm ±20%	A2
Closed-loop travel ³	15	30	45	60	90	-	-	-	-	-	µm	A5
* Integrated feedback sensor	SGS	SGS	SGS	SGS	SGS	-	-	-	-	-		B
Closed-loop / open-loop ** resolution	0.3 / 0.15	0.6 / 0.3	0.9 / 0.45	1.2 / 0.6	1.8 / 0.9	- / 0.15	- / 0.3	- / 0.45	- / 0.6	- / 0.9	nm	C3
**Static large-signal stiffness*	57	27	19	15	10	57	27	19	15	10	N/µm ±20%	D1
Push/pull force capacity	1000 / 50	1000 / 50	1000 / 50	1000 / 50	1000 / 50	1000 / 50	1000 / 50	1000 / 50	1000 / 50	1000 / 50	N	D3
Torque limit (at tip)	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	Nm	D6
Electrical capacitance	1.8	3.6	5.4	7.2	10.8	1.8	3.6	5.4	7.2	10.8	µF ±20%	F1
Dynamic operating current coefficient (DOCC)	15	15	15	15	15	15	15	15	15	15	µA/ (Hz x µm)	F2
Unloaded resonant frequency (f0)	18	14	10	8.5	6	18	14	10	8.5	6	kHz ±20%	G2
Standard operating temperature range	-20 to +80	-20 to +80	-20 to +80	-20 to +80	-20 to +80	-20 to +80	-20 to +80	-20 to +80	-20 to +80	-20 to +80	°C	H2
Voltage connection	VL	VL	VL	VL	VL	VL	VL	VL	VL	VL		J1
Sensor connection	L	L	L	L	L	-	-	-	-	-		J2
Weight without cables	20	28	46	54	62	20	28	46	54	62	g ±5%	K
Material case / end pieces	N-S	N-S	N-S	N-S	N-S	N-S	N-S	N-S	N-S	N-S		L
Length L	32	50	68	86	122	32	50	68	86	122	mm ±0.3
Recommended Amplifier/Controller (codes explained see link)	C, D ,G , H	C, D ,G , H	C, D ,G , H	C, D ,G , H	C, D ,G , H	C,G	C,G	C,G	C,G	C,G
* Closed-loop models are supplied with calibration data sheets; ** Resolution of PZT actuators is not limited by friction or stiction. Noise equivalent motion with E-503 amplifier; *** Dynamic small-signal stiffness ~30% higher

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P-841 Preloaded Closed-Loop LVPZT Translators

P-841.10
15 µm

P-841.20
30 µm

P-841.30
45 µm

P-841.40
60 µm

P-841.60
90 µm

P-840 Preloaded Open-Loop LVPZT Translators

P-840.10
15 µm

P-840.20
30 µm

P-840.30
45 µm

P-840.40
60 µm

P-840.60
90 µm

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