Campbell FW05 Handbuch PDF herunterladen (Seite 33)

CSAT3 Three Dimensional Sonic Anemometer

' (N)

' {-y}

' |

' (W) {+x} <-------[ ]----X--- {-x} (E)

' / | \

' CSAT3 Block | CSAT3 Transducers

' |

' v

' {+y}

' (S)

'The program computes the compass wind direction, using the constant

'CSAT3_AZIMUTH, and a CSAT3 wind direction. Good CSAT3 wind directions

'are between -90 to 0 and 0 to 90 degrees, e.g. the wind is blowing into

'the CSAT3 sensor head.

Const CSAT_OPT = INT (1000/SCAN_INTERVAL) 'Compute CSAT3 Execution Parameter.

Const SDM_PER = 30 'Default SDM clock speed.

'*** Variables ***

'Online lagged CSAT3 data.

Public wind(5)

Alias wind(1) = Ux

Alias wind(2) = Uy

Alias wind(3) = Uz

Alias wind(4) = Ts

Alias wind(5) = diag_csat

Units Ux = m/s

Units Uy = m/s

Units Uz = m/s

Units Ts = C

Units diag_csat = unitless

Public diag_bits(4) AS Boolean 'Warning flags.

Alias diag_bits(1) = del_T_f 'Delta temperature warning flag.

Alias diag_bits(2) = sig_lck_f 'Poor signal lock warning flag.

Alias diag_bits(3) = amp_h_f 'Amplitude high warning flag.

Alias diag_bits(4) = amp_l_f 'Amplitude low warning flag.

Units diag_bits = samples

Public batt_volt 'CRBasic datalogger battery voltage.

Public panel_temp

Units batt_volt = V

Units panel_temp = C

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Campbell FW05 Handbuch Seite 33