Wavetek 81 Generator
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Modell:
81
Datum:
1996
Kategorie:
Gruppe:
Beschreibung:
50MHz Modulated Function/Pulse Generator
Information
DESCRIPTION
Model 80 is an extremely high-performance programmable
function Generator. It provides a variety of signal
waveforms, to be used as test stimuli for different
electronic devices. Microprocessor based; Model 80 is easy
to set up for manual use. It is also simple to program in
GPIB system environment.
The instrument is built in an all-round metal case for
improved RFl and EMI shielding. It is housed in a size to
fit half-rack enclosures. Regardless of its small size,
Model 80 offers many features and functions, such as
enhanced accuracy, eight different linear and logarithmic
sweep modes, automatic phase lock loop, pulse and ramp
waveforms with transition
time control (Model 81 only), counted burst, internal
trigger Generator, full implementation of the new IEEE-488.2
standard, and more. But, most of all, Model 80 guarantees
high quality waveforms throughout the specified frequency
range, amplitude span, and operating temperature.
Model 80 generates waveforms within a frequency range from
10mHz to 50MHz and an amplitude span from 10mV to 32Vp-p.
Such broad coverage warrants a variety of complex
applications. Rapid, repeatable testing every time is
assured by a non-volatile memory. Up to 30 front panel
set-ups can be stored and recalled for later use; ensuring
exact duplication of previous tests. Its performance,
programmability and economy make it equally at home in every
laboratory.
For improved output accuracy, Model 80 employs a built-in
counter. This Counter is incorporated in an internal loop
which constantly monitors the output frequency. Even the
slightest deviation from the programmed frequency is
detected and corrected by the microprocessor circuit.
Model 80 features self-calibration and self-diag-nostic
functions that can be operated any time from the front panel
or GPIB command. The self-calibration function compares the
output signal parameters to built-in internal references and
stores correcting factors in special tables. If calibration
routine fails or can not be completed due to electrical
faults, the Generator produces a failure list that can be
evaluated either from the front panel or through GPIB status
reporting command.
Besides its normal continuous mode, Model 80 offers a
variety of interrupted and controlled modes. Output waveform
may be gated, triggered, or may generate a counted burst of
output waveforms. A built-in trigger Generator, having a
programmable period, can replace an external trigger
stimulant. The MANUAL trigger is just an additional
convenience for front panel operation. The Generator may
also be placed in a number of externally controlled modes,
such as VCO, FM, AM, and pulse width modulation (PWM - Model
81 only).
Model 80 may be used as an independent sweep Generator with
its output swept over an exceptionally wide range of 10
decades. The instrument offers a choice of eight sweep
modes, both linear and logarithmic to cover a large number
of applications. A MARKER output provides an Oscilloscope
Z-axis modulation to intensify segments of sweep trace.
Alternately, Model 80 may also be used as a stand-alone
phase lock Generator. The instrument locks automatically to
an external signal and equates its output frequency and
phase to that provided by the external reference. The
operator may then generate a phase offset between the
reference signal and the generator’s output. Phase offset is
adjusted within a range of ±180°.
Model 80 provides an output level from 20mV to 32Vp-p into
open circuit or 10mV to 16Vp-p into 50U. DC offset plus
amplitude are independently variable within two window
levels: ±16V and ±1.6V (into open circuit). This special
characteristics warrants production of extremely small
signals at an elevated DC environment.
Model 81 is a pulse/function Generator and is also described
in this manual. This instrument is identical in its basic
functions to the Model 80. In addition, this instrument
offers Pulse and Ramp waveforms. Pulse width and ramp width
are adjustable within a range of 10.0ns to 999ms.
Model 81 provides control over the transition times for the
leading and trailing edges; each can be adjusted
independently within a common range. Pulse complement and
inverted ramp functions are also available. This manual
identifies those features and specifications that only apply
to Model 81.
Dokumenttyp:
Service- und Bedienungsanleitung
Seiten:
160
Größe:
7.46 Mbytes (7825206 Bytes)
Sprache:
english
Revision:
Dokument-ID:
Datum:
1996 01 01
Qualität:
Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
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Information
This manual provides operation and maintenance information
for both Model 80 - Function Generator and Model 81 -
Pulse/Function Generator.
Section 1 provides general description of the instruments.
Sections 2 and 3 contain installation and operation
instructions. IEEE-488.2 (GPIB) programming is explained in
Section 4. Maintenance and performance checks are provided
in section 5. Theory of operation is described in section 6.
Section 7 outlines calibration and troubleshooting
procedure. Section 8 contain tables of replaceable parts and
recommended spare parts. Section 9 contains schematic and
component location diagrams.
NOTE
This manual is common to both Model 80 and Model 81. It
describes all features and functions for both models.
Therefore, some features which are described in this manual
may not be available in your instrument. Features that are
unique to the Model 81 are described separately.