Equcpars4 - Agilent Technologies 4294A Programming Manual

GPIB Command Reference

EQUCPARS4?

EQUCPARS4?
Syntax
EQUCPARS4?
Description If the sweep parameter is frequency and the measurement parameter is |Z|-θ, within the
waveform analysis range specified with the "ANARANG" command on page 267,
analyzes the 4-device equivalent circuit parameters of a crystal oscillator (refer to Figure
16-1) using the admittance characteristic circle diagram (refer to Figure 16-2), and reads
out them. If the sweep parameter is not frequency or the measurement parameter is not
|Z|-θ, executing this command causes an error and all the readouts are 0. (Query only)
Figure 16-1 4-device equivalent circuit of a crystal oscillator
Query response
{numeric 1},{numeric 2},{numeric 3},{numeric 4},{numeric 5},{numeric 6},
{numeric 7},{numeric 8},{numeric 9}<newline><^END>
Readouts are as follows:
{numeric 1}:
{numeric 2}:
{numeric 3}:
{numeric 4}:
{numeric 5}:
{numeric 6}:
{numeric 7}:
{numeric 8}:
{numeric 9}:
312
Value of C (parallel capacitance).
0
Value of C (motional capacitance).
1
Value of L (motional inductance).
1
Value of R (motional resistance).
1
Value of f (motional (series) resonant frequency).
s
Value of f (anti-resonant frequency).
a
Value of f (resonant frequency).
r
Value of f (frequency at which the conductance is half the maximum
1
value).
Value of f (frequency at which the conductance is half the maximum
2
value). Note that f <f .
1 2
Chapter 16