Campbell FW05 Manuale Scaricare il pdf (Pagina 38)

CSAT3 Three Dimensional Sonic Anemometer

;If the CSAT3 head is pointing West of North (above figure),

;theta is negative. If the CSAT3 head is pointing East of

;North, theta is positive.

;

;The site attendant must enter the value of theta. Search

;for the text string "unique value" to find the location where

;theta is entered.

*Table 1 Program

01: .1 Execution Interval (seconds)

;Get the data from the CSAT3.

;

1: SDM-CSAT3 (P107)

1: 1 Reps

2: 3 SDM Address

3: 91 Trigger and Get wind & Ts data

4: 1 Ux Input Location [ Ux ]

;Configure the CSAT3.

;

2: Do (P86)

1: 1 Call Subroutine 1

;Change the CSAT3 Ux and Uy to instantaneous compass wind direction.

;

3: Z=X (P31)

1: 1 X Loc [ Ux ]

2: 11 Z Loc [ Prop_N ]

4: Z=X*F (P37)

1: 2 X Loc [ Uy ]

2: -1 F

3: 9 Z Loc [ Prop_E ]

;Copy the CSAT3 Ux and Uy instantaneous wind to compute CSAT3 wind direction.

;

5: Z=X (P31)

1: 1 X Loc [ Ux ]

2: 10 Z Loc [ Ux_copy ]

6: Z=X (P31)

1: 2 X Loc [ Uy ]

2: 12 Z Loc [ Uy_copy ]

7: Z=ABS(X) (P43)

1: 5 X Loc [ diag ]

2: 36 Z Loc [ diag_abs ]

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 71 72

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Campbell FW05 Manuale Pagina 38