NF FRA5087, Instruction Manual

Page: 140 / 194

6.3 File format
FRA5087 6-6
Table 6-2 c) Measurement data file format - Data (RAW data)
Offset Type Descriptions (content)
212(0xd4) RAW Invalid data RAW[0]
240(0xf0) RAW RAW[1]
268(0x10c) RAW RAW[2]
: RAW :
212+28  Num
(0xd4+0x1c  Num)
RAW RAW[NUM]
Table 6-2 d) Measurement data file format - Data (OPERATED data)
Offset Type Descriptions (content)
212(0xd4) OPRD Invalid data OPRD [0]
228(0xe4) OPRD OPRD [1]
244(0xf4) OPRD OPRD [2]
: OPRD :
212+16  Num
(0xd4+0x10  Num)
OPRD OPRD [NUM]
The formats for the RAW data (RAW) and the OPERATED data (OPRD) are described in the
“Table 6-3 Data format” below. The RAW data (RAW) and the OPERATED data (OPRD)
occupy 28 bytes (0x1c) and 16 bytes (0x10), respectively, per data (set).
Table 6-3 a) Data format (RAW measurement data, RAW)
Offset Type Descriptions (content)
0 double Frequency (Hz)
8 float CH1 voltage (Vrms)
12(0xc) float
Phase of CH1 with reference to CH2 (deg)
 180.0 < phase  +180.0
16(0x10) float CH2 voltage (Vrms)
20(0x14) double Coherence
Table 6-3 b) Data format (OPERATED measurement data, OPRD)
Offset Type Descriptions (content)
0 double Frequency (Hz)
8 float Gain
12(0xc) float Phase(deg)  180.0< phase  +180.0