Write an assembly language program to transfer N = ___ bytes of data from location A: _______h to location B: _______h. Let N = 05h, A: 30h B: 40h
ORG 0000H
MOV R3,#05H
MOV R0,#30H
MOV R1,#40H
BACK:MOV A,@R0
MOV @R1,A
INC R0
INC R1
DJNZ R3,BACK
END
Flapper nozzle pneumatic transducer
Flapper nozzle is a most commonly used pneumatic transducer for small displacement measurement. It is also used to determine position in a servosystem. Construction As shown in the figure restriction element is mounted inside the nozzle. We often use orifice plate as a restriction element. The flapper is mounted near to the nozzle as shown in the figure. the difference between flapper and nozzle is x. The constant pressure supply (20psi) is applied to the inputside of nozzle. Working As Distance between flapper and nozzle is increase then the output of the flapper nozzle is decreased and when the distance is a decrease the output of the nozzle is will increase.so we can say that the displacement and output of the device is inversely proportional. When the distance (x) is zero then output is equal to the input supply.
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