PMID- 11885673
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20020417
LR  - 20190916
IS  - 0885-3010 (Print)
IS  - 0885-3010 (Linking)
VI  - 49
IP  - 2
DP  - 2002 Feb
TI  - A novel multi-degree-of-freedom thick-film ultrasonic motor.
PG  - 151-8
AB  - This paper describes a new multi-degree-of-freedom (MDOF) ultrasonic motor that 
      comprises few parts and is based on low-cost thick-film technology. Conventional 
      ultrasonic motors using bulk lead zirconate titanate (PZT) or thin-film PZT 
      layers are relatively expensive at the present time. Thick-film printed PZT 
      technology provides the opportunity to reduce the costs of ultrasonic motors. To 
      demonstrate the feasibility of this approach, an ultrasonic motor was fabricated 
      from alumina using thick-film printed PZT actuators. The thick-film PZT and 
      electrode layers were printed on a thin alumina plate, and a tiny cylinder was 
      mounted at its center. This cylinder magnifies the lateral displacement of the 
      stator, holds the spherical rotor, and transmits the driving force to the sphere. 
      Three bending vibrations, B22, B30, B03, of the plate were applied to rotate the 
      sphere. Sufficient displacements for rotating the sphere were obtained near the 
      resonance of B22 by applying an excitation voltage of 200 V peak-to-peak via a 
      three-phase drive circuit. Rotations in three orthogonal directions have been 
      observed by controlling the phase of the driving signal to the PZT electrodes, 
      and a MDOF ultrasonic motor was successfully realized.
FAU - Aoyagi, Manaba
AU  - Aoyagi M
AD  - Department of Electrical Engineering, Yamagata University, Japan.
FAU - Beeby, Steve P
AU  - Beeby SP
FAU - White, Neil M
AU  - White NM
LA  - eng
PT  - Journal Article
PL  - United States
TA  - IEEE Trans Ultrason Ferroelectr Freq Control
JT  - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
JID - 9882735
EDAT- 2002/03/12 10:00
MHDA- 2002/03/12 10:01
CRDT- 2002/03/12 10:00
PHST- 2002/03/12 10:00 [pubmed]
PHST- 2002/03/12 10:01 [medline]
PHST- 2002/03/12 10:00 [entrez]
AID - 10.1109/58.985699 [doi]
PST - ppublish
SO  - IEEE Trans Ultrason Ferroelectr Freq Control. 2002 Feb;49(2):151-8. doi: 
      10.1109/58.985699.