MI-53000 Family of Azimuth-over-Elevation Positioners

MI-53050

The MI-53000 Family of Azimuth-over-Elevation Positioners has two orthogonal axes which permit the simulation of spherical coordinate probe movement. This family of positioners offers a combination of the most desirable operational characteristics of the previously described azimuth positioners.

downloadpdfCables and position control units are ordered separately. If desired, an installed RF path must be requested by ordering the appropriate option.

 

For even weight and optimum load distribution, auxiliary base supports are offered for all MI-53000 positioners.

  • Ideal for general antenna measurements
  • Rugged construction assures superior reliability and longevity

 

Specifications

Parameter Units 53050D 53051D 53150D 53152D 53230D 53300D 53450D
Total Bending
Moment
ft-lbs 800 800 2,500 2,500 10,000 30,000 108,000
Nm 1,085 1,085 3,390 3,390 13,558 40,675 146,430
Total Vertical
Load
lbs 800 800 2,500 2,500 10,000 30,000 45,000
kgs 363 363 1,134 1,134 4,536 13,608 20,412
Drive Motor
Elevation hp 1/3 1/3 1/2 1/2 3/4 3/4 5
kW 0.25 0.25 0.37 0.37 0.56 0.56 3.73
Azimuth hp 1/15 1/15 1/3 1/3 3/4 3/4 5
kW 0.05 0.05 0.25 0.25 0.56 0.56 3.73
Delivered Torque
Elevation ft-lbs 800 800 2,500 2,500 10,000 20,000 90,000
Nm 1,085 1,085 3,390 3,390 13,558 27,116 122,024
Azimuth ft-lbs 100 40 200 500 1,000 2,750 18,000
Nm 136 54 271 678 1,356 3,729 24,405
Withstand Torque
Elevation ft-lbs 800 800 2,500 2,500 10,000 30,000 108,000
Nm 1,085 1,085 3,390 3,390 13,558 40,675 146,429
Azimuth ft-lbs 200 200 600 600 1,850 3,800 18,000
Nm 271 271 813 813 2,508 5,152 24,405
Maximum Speed
Elevation deg/min 200 200 140 140 32 20 20
Azimuth rpm 1.2 3 3 1.3 1.2 0.5 0.5
Position Accuracy
Elevation deg 0.05 0.05 0.05 0.05 0.05 0.05 0.05
- with
Inductosyn®
encoder
deg N/A N/A N/A N/A ±0.005 ±0.005 ±0.005
Azimuth deg 0.05 0.05 0.03 0.03 0.03 0.03 0.02
- with
Inductosyn®
encoder
deg N/A N/A N/A N/A ±0.005 ±0.005 ±0.005
Total Maximum Drive Gear Backlash
Elevation deg 0.08 0.08 0.05 0.05 0.05 0.03 0.03
Azimuth deg 0.20 0.20 0.15 0.15 0.10 0.10 0.05
Dimensions
Total Elevation
Limit-to-Limit
Travel
deg +95;-45 +95;-45 +95;-45 +95;-45 +92;-45 +92;-45 +92;-45
Turntable
Diameter
in 16 16 28 28 43 44 47.3
mm 406 406 711 711 1,092 1,118 1,201
Center Access
Hole Diameter
in 3.75 3.75 3 3 3 3 6
mm 95 95 76 76 76 76 152
Height in 21.5 21.5 25.94 25.94 36.75 43.37 66.63
mm 546 546 659 659 933 1,102 1,692
Height with Base in 26 26 30.44 30.44 45.88 52.50 N/A
mm 660 660 773 773 1,165 1,334 N/A
Net Weight lbs 390 390 590 590 1,800 2,400 7,300
kgs 177 177 268 268 816 1,089 3,311

Applications

In addition to the basic support for a microwave antenna under investigation, this family of positioners may also be employed with a polarization positioner mounted on the upper turntable. At the transmitting end of a range, this would provide the flexibility and economy of a single source site remotely controlled to serve each of the several widely separated receiving stations. Employing this configuration at the receiving site, such a platform arrangement permits the introduction of a wide variety of pattern range investigative techniques. A fourth application, but no less important, would be the support for a model tower fixture.

Configuration Options

Feedback Limit Switches Rotary Joint w/ RF path Slipring Assembly RF Switch Wiring Mounting Base
-FDS -LS -RJ0 -SR0 -SW0 -MO
-FDS
Dual Speed
Synchro (36:1)
Both Axes
-LS0
No Adjustable Limit
Switches
-RJ0
No Rotary Joint
-SR0
No Slipring
-SW0
No RF Switch Wiring
-MO
No Mounting Base

-FI
Inductosyn®
Both Axes

-LS
Adjustable Limit Switches
-RJ18
DC-18GHz, AZ Only
-SR60
60 Conductor, AZ Only
-SW
RF Switch Wiring
-MB
Mounting Base
    -RJ26.5
DC-26.5GHz, AZ Only
-SR84
84 Conductor, AZ Only
   
    -RJ40
DC-40GHz, AZ Only
     

Option Compatibility Table

Model Feedback Limit Switches Rotary Joint with RF Path Slipring Assembly1 RF Switch Wiring Mounting Base
53050D FDS only Yes Yes No 2 Yes
53051D FDS only Yes Yes No 2 Yes
53150D FDS only Yes Yes SR60 Only Yes1 Yes
53152D FDS only Yes Yes SR60 Only Yes1 Yes
53230D Yes Yes Yes Yes Yes1 Yes
53300D Yes Yes Yes Yes Yes1 Yes
53450D Yes Yes Yes Yes Yes1 Yes

1 Select either RF Switch Wiring or Slip Ring Assembly but not both
2 Available on special request. Consult factory