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-844 P-845 Preloaded Open- & Closed-Loop LVPZT Translators Displacement to 90 µm Pushing Forces to 3000 N Pulling Forces to 700 N Sub-msec Response Sub-nm Resolution Options: Vacuum, Water-Resistant P-844 and P-845 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 machining applications. P-844 is specifically designed for open-loop operation. For highest accuracy, the P-845 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. For push/pull forces up to 100 N, the translator can be mounted by clamping around the case. For larger forces, the translator must be mounted by the base. The P-176.60 Flexible Tip is available to protect the ceramics from bending forces (see link). Factory Installed Options P-703.20 High-Vacuum Option (see link) P-706.00 Water-Resistant Case (see link) Accessories P-176.60 Flexible Tip, see link Extension cables & connectors: see link in the "PZT Control Electronics" section. Static and dynamic positioning Disk drive testing Optics Metrology Smart structures Precision machining Adaptive mechanics Vibration cancellation Switching Laser tuning For more examples see link P-844 PZTs (battery for size comparison) P-844, P-845 dimensions (in mm). See table for length, L

Technical Data

	Closed-Loop					Open-Loop
Models	P-845.10	P-845.20	P-845.30	P-845.40	P-845.60	P-844.10	P-844.20	P-844.30	P-844.40	P-844.60	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*	225	107	75	57	38	225	107	75	57	38	N/µm ±20%	D1
Push/pull force capacity	3000/700	3000/700	3000/700	3000/700	3000/700	3000/700	3000/700	3000/700	3000/700	3000/700	N	D3
Torque limit (at tip)	1	1	1	1	1	1	1	1	1	1	Nm	D6
Electrical capacitance	7.2	14.5	22	29	43	7.2	14.5	22	29	43	µF ±20%	F1
Dynamic operating current coefficient (DOCC)	60	60	60	60	60	60	60	60	60	60	µA/ (Hz x µm)	F2
Unloaded resonant frequency (f0)	16	12	9	7.5	5.5	16	12	9	7.5	5.5	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	84	108	132	156	204	84	108	132	156	204	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	47	65	83	101	137	47	65	83	101	137	mm
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, iG, 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-845
Preloaded Closed-Loop LVPZT Translators

P-845.10
15 µm

P-845.20
30 µm

P-845.30
45 µm

P-845.40
60 µm

P-845.60
90 µm

P-844
Preloaded Open-Loop LVPZT Translators

P-844.10
15 µm

P-844.20
30 µm

P-844.30
45 µm

P-844.40
60 µm

P-844.60
90 µm

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