Figure 4. 34: Displacement of the slider at centre.
2. IDTs on both side of the DFD motor, a cuboid slider kept in straight at middle without absorption material kept at end of IDT side but a gap of λ /8 both side end.
3. IDTs on both side of the conventional motor, a cuboid slider kept in inclined at middle without absorption at IDTs but a space of Lamb/8 is left at the both side end of substrate.
4. IDTs on both side of the DFD motor, a cuboid slider kept in inclined at middle without absorption material kept at end of IDT side but a space of λ /8 is left at both side ends.
5. IDTs on both side of the conventional motor, a cuboid slider with cylindrical projections in one side surface kept in straight at middle of substrate without absorption at IDT side but a space of λ /8 is left at the end sides.
6. IDTs on both side of the DFD motor, a cuboid slider with cylindrical projections in two side surfaces slider kept in straight at middle without absorption material kept but a space of λ /8 is left at both side end.
7. IDTs on both side of the conventional motor, a cuboid slider with cylindrical projections in one side surface slider kept in inclined at middle without absorption at IDT side but a space of λ /8.
8. IDTs on both side of the DFD motor, a cuboid slider with cylindrical projections in two side surface slider kept in inclined at middle without absorption material kept at end of IDT side but a gap of λ /8 is provided.
4.3.2 With phase difference
1. IDTs on both side of the conventional motor, a cuboid slider kept in straight at middle without absorption at IDT side but a space of λ /8.
2. IDTs on both side of the DFD motor, a cuboid slider kept in straight at middle without absorption material kept at end of IDT side but a gap of λ /8 both side end.
3. IDTs on both side of the conventional motor, a cuboid slider kept in inclined at middle without absorption at IDT but a space of λ /8 is left at the both side end of substrate.
4. IDTs on both side of the DFD motor, a cuboid slider kept in inclined at middle without absorption material kept at end of IDT side but a space of λ /8 is left at both side end.
5. IDTs on both side of the conventional motor, a cuboid slider with cylindrical projections in one side surface kept in straight at middle of substrate without absorption at IDT side but a space of λ /8 is left at the end sides.
6. IDTs on both side of the DFD motor, a cuboid slider with cylindrical projections in two side surfaces slider kept in straight at middle without absorption material kept but a space of λ /8 is left at both side end.
7. IDTs on both side of the conventional motor, a cuboid slider with cylindrical projections in one side surface slider kept in inclined at middle without absorption at IDT side but a space of λ /8.
8. IDTs on both side of the DFD motor, a cuboid slider with cylindrical projections in two side surface slider kept in inclined at middle without absorption material kept at end of IDT side but a gap of λ /8 is provided.
4.3.3 Load given to one end with variations to the slider
1. IDTs on both side of the conventional motor, a cuboid slider kept in straight at middle without absorption at IDT side but a space of λ /8.
2. IDTs on both side of the DFD motor, a cuboid slider kept in straight at middle without absorption material kept at end of IDT side but a gap of λ /8 both side end.
3. IDTs on both side of the conventional motor, a cuboid slider kept in inclined at middle without absorption at IDTs but a space of λ /8 is left at the both side end of substrate.
4. IDTs on both side of the DFD motor, a cuboid slider kept in inclined at middle without absorption material kept at end of IDT side but a space of λ /8 is left at both side ends.
5. IDTs on both side of the conventional motor, a cuboid slider with cylindrical projections in one side surface kept in straight at middle of substrate without absorption at IDT side but a space of λ /8 is left at the end sides.
6. IDTs on both side of the DFD motor, a cuboid slider with cylindrical projections in two side surfaces slider kept in straight at middle without absorption material kept but a space of λ /8 is left at both side end.
7. IDTs on both side of the conventional motor, a cuboid slider with cylindrical projections in one side surface slider kept in inclined at middle without absorption at IDT side but a space of λ /8.
8. IDTs on both side of the DFD motor, a cuboid slider with cylindrical projections in two side surface slider kept in inclined at middle without absorption material kept at end of IDT side but a gap of λ /8 is provided.
Table 4. 4: Summary of case studies mentioned above No
.
Type of Case Driv
ing load
Distance covered
Velocity as per initial motion
Total displac ement
Contact pressure
1 IDTs on one side of the conventional motor, a cuboid slider kept in straight at one end with adsorption at IDT
1 N 2.2 µm/50 µs (Slant)
0.14 m/s in 50 µs (Slant)
2.2 µm/50 µs (Slant)
1.5 (MPa) /40 µs (Slant)
side.
2 IDTs on one side of the DFD motor, a cuboid slider kept in straight at one end side and absorption material kept at end of IDT side. (No load)
1 N Slider starts slanting, so two different point motion
observed 0.55 µm/ 2.1 µs and 0.44 µm/
2.1 µs
0.7 m/s in 2.1 µs
0.55 µm/ 2.1 µs and 0.44 µm/ 2.1 µs
18 (Mpa) /2 µs
2.1 IDTs on one side of the DFD motor, a cuboid slider kept in straight at one end side and absorption material kept at end of IDT side.
1 N slanting 1.1 µm/2.5 µs and 0.9 µm/2.5 µs
1.1 m/s in 2.5 µs and 0.9 m/s in 2.5 µs
1.1 µm/
2.5 µs and 0.9 µm/ 2.5 µs
3.6 (MPa) in 2.5 µs
2.2 IDTs on one side of the DFD motor, a cuboid slider kept in straight at one end side and absorption material kept at end of IDT side.
1 N slanting 3.4 µm/ 3.5 µs and 3.2 µm/ 3.5 µs
1.8 m/s in 3.5 µs and 1.7 m/s in 3.5 µs
3.4 µm/
3.5 µs and 3.2 µm/ 3.5 µs
1.5 (Pa) in 18 µs
3 IDTs on one side of the DFD motor, a cuboid slider kept in inclined at one end side and absorption material kept at end of IDT side.
1 N No further slanting 1.9 µm/ 4.5 µs
1.2 m/s in 4.5 µs
1.9 µm / 4.5 µs
7.5 (MPa) in 4.2 µs
4 IDTs on both side of the conventional motor, a cuboid slider kept in straight at middle without absorption at IDT side but a space of λ/8.
(Without Phase difference)
1 N Slider is not moving in a particular direction rather it fluctuate to left and right of X- axis.
0.06 µm/ 5 µs to -0.12 µm/
12.5 µs
0.25 m/s in 5 µs to - 0.045 m/s in 12.5 µs
0.13 µm/
12.5 µs
5 IDTs on both side of the DFD motor, a cuboid slider kept in inclined at middle without absorption material kept at end of IDT side but a space of λ/8 is left at both side end.
(Without phase difference)
1 N 5.5 µm/ 50 µs 0.14 m/s 5.5 µm/
50 µs
2.6 (MPa) at 4 µs
6 IDTs on both side of the DFD motor, a cuboid slider with cylindrical projections in two side surfaces slider kept in
2 N 0.03 µm/ 3.7 µs 0.25 m/s at 2.0 µs
0.03 µm/ 3.7 µs
24 (MPa) at 3.4 µs
straight at middle without absorption material kept but a space of λ/8 is left at both side end.(With K phase difference) 7 Cuboid slider with load is kept
in between sandwich structure of stator which having λ/8 gap at both side end
1 N 14 µm / 26 µs 1 m/s at 12 µs
14 µm / 26 µs
10 (MPa) at 26 µs
7.1 Cuboid slider with load is kept in between sandwich structure of stators which having λ/8 gap at both side end.
2 N 15 µm/ 28.2 µs 1 m/s at 12 µs
15 µm/
28.2 µs
30 (MPa) at 28 µs