Operator`s manual
Signametrics 78
emarks This function characterizes the Inductance measurement path and source, which is
required prior to making inductance measurements. It should be performed within one
r, before usi easurements. For better accuracy it should be
performed more frequently. The Open Terminal calibration should be performed with the
test leads open. ce
across the full bandwidth, and makes measurements at several points. It takes about
tion of the
Inductance measurement system it is also necessary to perform the inductance zero
operation with t nce range and frequency selected, using the Relative function
and with the probes shorted.
Parameter
R
hou ng the inductance m
The DMMOpenTerminalCal sweeps the inductance stimulus sour
twenty seconds to complete the process. For a complete characteriza
he inducta
Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
eturn Value Integer error code.
Value
R
Meaning
DMM_OKAY
Op
eration successfully completed.
Negativ
Example enterminalCal(0);
SM2040 SM2042 ; SM2044 ;
Description e next DMM period reading, formatted for printing.
clude "sm2
int DMMPerio
Remarks function m d for
printing. The pr
DMMFrequen
Parame
e Value
Error code
int status = DMMOp
DMMPeriodStr
Return th
#in 04032.h"
dStr(int nDmm, LPSTR lpszReading)
This akes a period measurement and returns the result as a string formatte
int format is fixed to five digits plus units, e.g., 150.01 ms. See
cyStr() for more details.
ter Type/Description
nDmm
int Identifies the DMM. DMMs are numbered starting with zero.
ng
s to a buffer (at least 64 characters long) to hold the
converted result. The return value will consist of a leading sign, a
a units specifier.
Return Value n of the following constants.
Value
lpszReadi
LPSTR Point
floating-point value in exponential notation, and
The retur value is one
Meaning
DMM_O
Negative Value
Error code
DMM_CNT_RNG
Period measurement H/W is over or under range.
Example char cBuf[64];
int status;
status = DMMPeriodStr(0, cBuf);
KAY
Operation successfully terminated