ADIRS - AOA Sensor
 Figure 009

R 1EFF : 001-049, 101-102, 201-203, 1 34-11-00Page 28 1 1 Config-1 May 01/05 1 1 1CES 1

 ADIRS - AOA Sensor Figure 009A 
R 1EFF : 1 1 1CES  103-105, 151-199,  1 111 Page 2934-11-00 Config-1 May 01/05

 AOA Sensors - Installation Definition
 Figure 010

R 1EFF : 001-049, 101-105, 151-199, 201-203, 1 34-11-00Page 30 1 1 Config-1 May 01/05 1 1 1CES 1 ------------------------------------------------------------------------| | Indicated AOA:  | +85  | +60  | +25  |  0 | -35 | | AOA 1 and AOA 3 |----------------------------------------------------| | in degrees | Resolver angle: | -60  | -35  |  0 | +25 | +60 | ------------------------------------------------------------------------| | Indicated AOA:  | +85  | +60  | +25  |  0 | -35 | | AOA 2 |-----------------------------------------------------| in degrees | Resolver angle: | +60  | +35  |  0 | -25 | -60 | ------------------------------------------------------------------------The ADRs receive the same 26VAC, 400 Hz reference as the AOA resolvers. This reference is common to both AOA resolver inputs 1 and 2. Characteristics:

 Excitation : 26 V 400 Hz
 Phase shift : 18 deg. to 30 deg.
 Resolver transformer :
 ratio RT : 0.4029 to 0.4629
 Rotor impedance : Zro = 125 + j175 ohms +/-20%
 Stator impedance : Zso = 115 + j90 ohms +/-30%
 Range : +/-60 deg.
 Scale factor : 1 deg. resolver/1 deg. local AOA The accuracy of the AOA sensor, at 100 knots, is +/-0.3 deg.
R 1EFF : 001-049, 101-105, 151-199, 201-203, 1 34-11-00Page 31 1 1 Config-1 May 01/05 1 1 1CES 1R **ON A/C 001-049, 101-105, 151-199,

 F. Selector Switches (Ref. Fig. 011) The two selector switches AIR DATA and ATT HDG are rotary selector switches with 3 positions: CAPT/3, NORM and F/O/3. These selector switches are used for the functions listed below (Ref. the respective section for more details):
 -AIR DATA SEL SW (15FP):
 34-14-00 Selection of the ADR used by the IR3
 34-52-00 ATC mode S
 31-68-00 DMC
 22-85-00 FMGC

 -ATT HDG SEL SW (13FP):
 34-11-00 Power Supply
 34-14-00 Selection of the ADR used by the IR3
 34-41-00 Weather Radar
 34-57-00 VOR/DME RMI
 31-68-00 DMC
 22-85-00 FMGC.

R 1EFF : 001-049, 101-105, 151-199, 1 34-11-00Page 32 1 1 Config-1 May 01/05 1 1 1CES 1

 INTENTIONALLY BLANK

R 1 1
34-11-00Page 33
1 1 Config-1 May 01/05 1 1 1CES 1

 ADIRS Switching
 Figure 011

R 1EFF : 001-049, 101-105, 151-199, 201-203, 1 34-11-00Page 34 1 1 Config-1 May 01/05 1 1 1CES 1 **ON A/C 201-203,

 F. Selector Switches (Ref. Fig. 011) The two selector switches AIR DATA and ATT HDG are rotary selector switches with 3 positions: CAPT/3, NORM and F/O/3. These selector switches are used for the functions listed below (Ref. the respective section for more details):
 -AIR DATA SEL SW 15FP =
 34-14-00 Selection of the ADR used by IR3
 34-52-00 ATC mode S
 31-68-00 DMC
 22-85-00 FMGC

 -ATT HDG SEL SW 13FP =
 34-11-00 Power Supply
 34-14-00 Selection of the ADR used by IR3
 34-41-00 Weather Radar
 34-57-00 VOR/ADF/DME RMI
 31-68-00 DMC
 22-85-00 FMGC.

 1EFF : 201-203, 1 34-11-00Page 35 1 1 Config-1 May 01/05 1 1 1CES 1 SENSORS, POWER SUPPLY AND SWITCHING - DESCRIPTION AND OPERATION

_______________________________________________________________
 1. General_______ The aircraft is equipped with three Air Data/Inertial Reference Units (ADIRUs). Each ADIRU receives data from the four types of sensors after:
 -three pitot probes which provide total pressure data,
 -six static probes which provide static pressure data,
 -two Total Air Temperature (TAT) sensors which provide air temperature data,
 -three Angle Of Attack (AOA) sensors which provide angle of attack data of
 the aircraft. The TAT sensors and the angle of attack sensors are directly connected to the ADIRUs. The pitot probes and the static probes are connected to eight Air Data Modules (ADM) which convert pressure data before they send them to the ADIRUs. The sensors, the probes, the ADMs and the ADIRUs are power supplied as follows:
 -------------------------------------------| EQUIPMENT | 28VDC | 115VAC | 26VAC | -------------------------------------------| ADIRU | X | X | X | |----------------|-------|--------|-------| | AOA Sensor | | X | X | |----------------|-------|--------|-------| | PITOT Probe | | X | | |----------------|-------|--------|-------| | TAT Sensor | | X | | |----------------|-------|--------|-------| | STATIC Probe | X | | | |----------------|-------|--------|-------| | ADM |13.5VAC from ADIRU | -------------------------------------------
　
中國航空網 m.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM NAVIGATION 導航1(58)