TYPE 34200 STOCHASTICAL ANALVSER

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TYPE 34200
STO,CHASTICAL
ANALVSER
NSA-1000

TYPE
TYP
346 O
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The Type 34 200 STO CHASTICAL ANALYSER ~ /; !'('{ 1 .)
BASIC ASSEM BLY is a universol equipment for j-eV>.(-(
testing rando m signals. Since, however, the r
basic a ssembly will accommodate measuring ~ { ~\.'i~
unit s other than the four basic ones, a new
stochastical analyser is obtained, which offers
a lorger number of facilities. Moreover, throug h
o combination of the additiono l measuring units,
setups optimolly suited to the actual measurement
task will be obtained. The basic assembly
can be used above ali in the follawing functions:
auto-correlation
cross-correlation
cross-correlation (voltage-pulse)
multi-channel signal averaging
pulse rate time distribution
time interval distribution
omplitude distribution
amplitude density
signal mean and rrns values
digital filtering
pseudo-ro n dom sig na l generation
system identification by pseudo-random
sig no ls
continuous manitoring or single onolysis
generotion of digital sine, cosine, sowtooth
sig no ls.
The individuol odditional units will add the follawing
functions to the above ones.
FOURIER TRA SFO M
E-640
FOURIER TRANSFORMER
real or imoginory port of lineor spectrum
outo-power density function
real or imoginory port of cross-power density
function
multiplication with window function (rectangulor,
Honning, Bortlett)
logarithmic Y output, too
PE 3 67
Dl IT L INTE
Z- 75
CE
MONITOR
visual observotion ond value estimation of
input and output signals
oncitlory for hondling ond servicing the peripherals
.. off-crote" functioning (only +5.8 V/3,5 A).
DIGITAL INTERFACE
readout of chonne11 number and channel
content of basic assembly
readout of channel number ond channel
content of Fourier transforrner
continuous data readout within preselected
limits
interface to printer, tope punch, teletype
optional (under development) interface to
Type 666 programmable colculator

The equipment has been designed with the objective
of providing a range of parameters as
wide as possible, enabling many different types
of measurement. The time schole of 100 ns to
1 s, a resolution of about 1 °/ 0 (corresponding to
100 channels), its facility of continuous manitoring
- ali ore valuable features suiting the
equipment to very wide applications in the
measurements of stochastic signals. The equipment
is a signal analyser ernplaying 100 digital
channels, a storage capacity of 20 bits/ channel,
performing aU computations simultaneously
with the measurement. The basic as·
sembly does not include a result display, but
it can be attached to any conventional type of
oscilloscope or XV plotter. Furthermore, the
principel signals can be obtained from connectors.
The resuhs can be read out at any frequene-y
even during the measurement. ln addition
to the conventional integreting-type averaging
(single analysis), "forgetting" type integration
(continuous monitoring) is also feasible. Both
the number of averagings and the " forgetting"
time constant ore variable over a wide range.
The equipment can be used for the onolysis of
continuous signals (AC or DC) and pulses. The
width of its time channels can be selected between
100 ns and 1 s (in correlation modes);
thus it is equally suitable for the investigatien
of very fast and very slow processes. ln amplitude
analyses, the maximum sampling freque n­
ey is 5 kHz (otherwise 0.5 M Hz). The f unction
generator provides digitaily generated sin, cos,
pseudo-random and sawtooth sionals with
frequencies adjustable over wide limits. The
time functions of the basic assembly in multichannel
signal averaging and correlation modes
e-an be studied by aid of the Fourier transforrner
in the frequency range, too. For a better
i'llustration, the number of frequency pointscan
be increased. Thus, tagether with the cycle time,
the frequency resolütion can be varied over
wide limits (from 1.25 mHz to 100 kHz). Focil1-
ties ore provided for using time w indows other
then the square-form, vis. multiplication by
Honning and Bartlett weighting function. The
real or the imaginary ports of the functions
within the particulor range can be fo rrned in
succession. Like in the basic a ssembly, the data
outputs deliver analog as weil as d igita l signals
moreover, the analog Y output can be switched
over to logarithmic display, too. The Manitor
unit performs mainly ancillary functions -visual
observation of signals, the estimation of their
values, setting the test setup, facilitating a servicing
and handfing of peripherals (e. g. the use
of Z modulation at peak searching}. Plugged in
alternatively, the M anitor and the D igital Interface
will take over the manitoring function of
the power supply. IM PORTANTI The Manitor is
suitable for "off·crate" functioning, too, only a
power supply of +5,8 V/3,5 A is required. The
Digital Interface enables the variaus functions
(recorded by the basic assembly) and, in expanded
configuration, the frequency spectra
(provided by the Fourier transformer) to be displayed
digitaily or recorded on o tape punch,
o printer or teletype - of course, either for o
given point o r for a ny arbitrary section.
GENERAl SPECIFICATIONS OF THE
BASIC ASSEMBLY
mains data : voltage 220 V ± 10 Ofo
(127 or 110 V by re-connection)
frequency : 50/60 Hz
power consumption: 250 VA
- dimensions: height 316 mm
widttl 505 mm
d epth 600 mm
weight : 36 kg
warm -up time : 15 minutes

o HE IC S E BLV
@
Cabinet
C rate (wi red frame)
Front panel covering two blank ponels
(i
CE,
0
0
Measuring uni ts :
type 34 630 Sam pl ing unit NE-630
type 34 631 1Processor NE-631
type 34 632 Mulii-channel integretor NE-632
type 34 633 Function generator NE-633
IllUllliUl IUlfill IIIIC AlUilU
"" lll·-
+mn
1111 llllllliT
l \
type
®
34 252 Power supply NB-252
®
0
type 34 252/ 111. law-current unit
®
type 34 252/IV. capacitor unit
typE 34 252/ 11. high -current unit
®
@)
®
@
type 34 252/V low-valtage
type 34 252/VI. law-voltage
type 34 252/VII. low-valtage
unit
unit
unit
- type 34 657 Po wer control unit NZ-657
..
®
0®

G
TYPE 34630 SAMPLING UNIT NE- 630
. ~
UIPLII5 IIIT
NE830
~ · · c>l
.:> .
OlGITAl OUT
CHACNJ!
HT.P !..Ol
the second 100-channel correlation
can also be recorded by aid of the
computationai delay
function
built-in
~ further (external) delays may be added through
the rear panel connector
(! analog pre-processing: ca libroted ga in and DC
offset (independent at both inputs) ;
selection of the appropriate input channel;
selection of DC, G N D, A C;
overdrive indicatien in compliance with the
+3 V window;
peak detection
4& um
4
HL-level trigger pulse output correspo nding to
the actual mode of triggering, for d riving other
instruments
pseudo-random or sawtooth signal connection
MAIN TECHNICAL DATA
- Input coupling: DC, GND, AC
- Input voltage range : 0.1 to 15 V p-p
- DC offset : ±5 V (resolution 10 mV)
- Max. input voltage: ± 20 Vp
- Input impedance : 100 kohms // 30 pf
- Bandwidth : DC to 1 MHz (-3 dB) or
1 Hz to 1 MHz (-3 dB)
- G ain : in ó steps (with a continuous coverage of 1 :3
within each step)
- Precomputational delay : zero, external, 100 L:,t
- Pulse counting : max. 15/ L:, t (max. 5 M Hz)
- A/D conversion, in channel A: ± 3 V in steps of 200 mV
in channel B': 1 bit (related to the reference
voltage)
- Max. voltage of reference input: ± 5 Vp

TYPE 34631 PROCESSOR NE-631
STOCH 'ST ICA L A.NA LY!ER
(NIA IOOOJ
CIOCK
IIIARNING:
H CI. OCK IS
OlY ID EO &T
MoH .2 0 M~ z
UJ CI O C~ l PUT
. ~ o
o
[IMI"t
PUlSfS OU T
RFMIJTE COliT t
12 measuring modes
2 operotion modes
®
a new meosurement cycle may be triggered by
the end of the previcus cycle or by o voltage
level of the input signal or by on externol signol
the red LED is illuminated if a trigger is selected
incansistent with the actual measuring
mode
• SYSTEV MFKI
.,..,,
NAOE IN HO HSA~Y
principel signals (controlling the operotion of
the onalyser). Remete control of trigger ond
measuring modes
®
output used for triggering processes synchronous
with the measuring cycles, for operotion
in the onalyser system
MAIN TECHNICAL DATA
Modes ol measurement
- Auto-correlation: to i n put A or B
- Cross-correlation : input A or B delayed, or B delayed,
pulse A, anologue B
- Multi-channel signal averaging
- Pulse rate time d istribution
- Time intervol distribution
- Amplltude distribution function
- Ampiitude density function
- Sig nal mean value
- Signal rms value
M odes ol operotion
- Cleoring the register contents
- Measurement process
- Data starage (after measurements)
Sompling ol delay eyeles
- ln correlation measurements: 0.1 /Js to s {in 22 steps)
- ln PHA : 0.2 ms to 1 s (in 12 steps)
- ln t he rest of functions : 2 us to 1 s (in 18 steps)
Clock pulse: 10 MHz (accurocy, ± to-lt, at +25°C)

TYPE 34632 MULTI-CHANNEL INTEORATOR NE-632
CD
from the attainment of the averaging number
selected, the red LED is illuminated (i. e. indicating
the campletion af the measurement or
the beginning of the formatien of on uncolibroted
result)
generation of + 40 V norrow pulses for each
channel (or far every 100 chonnels) for the monitor
or oscilloscopes
0)
the integretor may also be operated from on
external digital source, thus e. g. o digital filtering
con be realized in exponentiol averaging
&Oa unt
M~Df IH HUNU~Y
MAIN TECHNICAL DATA
M odes of operot ion
- Exponential averaging
(the ,.forgetting" time canstal)t depend s on the m'Ode
of measurement ond the sampli ng or delay cycle)
- linear averaging with preset display
- linear averoging, w ith o utomotic stopping upon ottoinment
of o p reset value
Number of o veragings: 2K where K = 4, 6, 8, 10, 12, 13,
14, 15,
Data outputs
- Output X (channel number) : 7 bits binory and ± 3 V
analog
- Output Y (channel content : 20 bits binary (with sig n),
± 3 V analog (the 7-bit portion of the 20 bits
te be read out can be selected in 8 steps for
the D/A converter)
Readout modes
- For each channel, w ith manual Iriggering
- Fast readout, e. g. for oscilloscope
- Slow readout, e. g. for XV platter (0.2 Ht to 10 Hz)
- Slow readout from external clock pulse

TYPE 34633 FUNCTION GENERATOR NE-633
FUNCI IDN
lElEIATil
ti.:
o . -
LJ
o
It
o
(-)
OlGilAl lll
•O
G) providing signols in step with the repetition of
o pseudo-rondom signal
@ the binory output may provide signal trains re•
turning or not returning to zero
0 in the case of coding or decoding, it will provide
o signal if a ditference is found between
the initici word and the coded one
⩔ neu
lo

u
TYPE 34640 FOURIER TRANSFORMER NE-640
.SJO(II.A.$'f1Cll AMAlfi El
't' OUf
u r tLO t
..
10
the data loading and camputation processes
can be started by a · toggle switch except
when the automatic method is applied
®
the weighting function is generated by the
Function Generator (the Fourier t ransfarmer
providing the clock pulse only)
any quarter of the transforrned function can be
magnified by varying the display sensitivity
4
the readout cycle is slow (here fixed
manual or external, similor to the
sem b ly
®
1 Hz), fast,
basic ossimilor
to the Multi-channel lntegrotor, the 8-bit
part of the 20 bits to be read out can be selected
in 4 steps for the output D/ A converter
MAIN TECHNICAL DATA
- M öde: real or imaginary part of spectrum
- N umber of f requency' points: 50, 100, 200, 400 where
the respective frequency resolutions ore L,f, /:::,.f/ 2,
/::,f/4, l:,f/8 (l:,f= 1/100l:,t)
- Frequency range : DC to 5 MHz
- Weighting window : rectang ular, cosine (Honning) ond
Bartlett
- Input data loading : manual or outomotic
- Data output: analog X, lin Y or X, log Y
d igital X, Y (in binary code)

TYPE 34641 CRT MONITOR NE-641
STt:rCH4 llf l ~HÁLY Ifi
in ,.off-crate" operation, the connector can be
driven by o power supply of + 5.8 V source
voltage (providing 3.5 A)
input sensitivity controls matched to the basic
assembly
LED takes over the function of the power control
unit (blinking at about 1 Hz to indicate the
failure of any one of the supply voltages)
switch, for switching the Manitor on or off, separately
MAIN tECHNJCAL DATA
- Input coupling: DC, GND, AC
- Sensitivity: 2, 1, 0.5 V/div.
- Input impedonce : 100 kohms ll 30 pF
- Max. i n put voltage: 63 V
- Bandwidth: DC or 0.3 Hz to 1 MHz (-3 dB), for X
omplifier
DC or 0.3 Hz to 1.5 MHz (-3 dB), for Y
omplifier
- Z medulotion (with AC coupling) : min. +s V
max. + 4o V

TYPE 34675 DIGITAL INTERFACE NZ-675
STOCMAS tiC&l att.\ l TUR
DIGITU liTERrACE
NE-875 l
Q) the place of the first p. c. board is blank for
· the option
the data ore receíved from the Multi-channel
Integretor and the Fourier transforrner through
four 20-pole connectors
triggering or stopping of readout by a toggle
switch
unblanking signal output for the monitor
34 675
IN HUNGARY
@ LED takes over the function of the power control
unit (blinking at about 1 Hz to indicate the
failure of any one of the supply voltages)
MAIN TECHNICAL DATA
- Function: displaying the function values of the basic
assembly or the Fourier tronsförmer
- Channel volue indication: sign + 4 digils (decima!)
ond a 2 diglt exponent (wlth sign) of o blnary base
- Display of channel number : 3 d igils
- Channel number selection: by 2x3-digit thumbwheel
switches (initio! and final volues)
- Peripheral interfoces
tope punch :
T-105 Model (mgde in Polond), MOM EC 7191-01
(EP 36) or 4070 Focit (with selector)
code: 8-bit ASCII, porollel data transfer
teletype:
ASR, KSR, RO (Data Dynamics),
GPO or V- 24 interface
code: 8-bit ASCII, se ri ol data transfer
p rinter :
TR-1872 (type 14892)
code : ASCII reduced to 6 bits, porollel data transfer
- Optional (under development) Interface to the type 666
programmable colculator; with this facility incorporated,
the remete control functlons of the basic assembly,
the Fourier t ransforrner ond the Digital interface
os weil os the control functions of data delivery
will be perforrned by the calculotor.

CIPAL D TA OF OTH
U TS
TYPE 34252 PO WER SUPPL V
NB-252
Nominal output voltoges and current s:
+40 V/70 mA
+ 15 V/0.5 A
+ 12 V/0.5 A
-12 V/0.9 A
+ 5.8 V/16 A
- 6 V/0.5 A
TYPE 34657 POWER CONTROL UNIT
N Z-657
ln the event of a breakdown of + 5.8 V, + 15 V,
+ 12 V, -6 V stabilized and +40 V unstobilized
voltoges, it will deliver a blinking signal of obout
1 Hz.
TYPE 34604 SERVICE UNIT
NE-604
It enables the measuring units to be operated
" off-crote".
EQUIPMENT RECOMMENDED FOR PERIPHERALS
TYPE 14892 PRINTER TR-1892
Printing rate:
· Column copocity:
Set of characters :
Data input:
1 line/s (asynchronous)
20
64 different c haracters
(7-bit ISO code reduced to
6 bits)
parallel BCD coded, TTL level
positive logic
TYPE 79812 X-Y RECORDER NE-240
Se nsitivity:
Applicoble chart size:
20 mV/cm to 10 V/cm
297x420 mm (A/3 format)
Possthrough speed (average): min. 50 cm/s
Controllable pen lift

TYPE 34200 ASS EMB lES OF THE STOCHASTICAL ANAL YSER
AND ITS ADDITIONAL UNITS NSA- 1000
Th e un1versal character of
t he measurement system may
be considered frorT' two aspects.
Th e basic assembly
!one is suitable f or a wid e
v ri e ty of measurements;
t he combinations ot t he a d­
ditio nal measu ring llnlts
will furt her Increc se the
number of setups fo r different
p u rposes. 10 dlfferent
setups o re available, six of
which o re totolly self-conta
ined, the rest assuming
the use of an external power
sourc e.
TYPE 34200
Conti nuous manitoring of the tests
provid ed by the basic o sembly he
manitor involves lower costs t hon the
permanent use of o generai-purpose
oscilloscope.
TYPE 34640
TYPE 34640
(-0
It ca n be used
for the invest!-
g ation of fu netions
in the
time domain
over the f requency
range.
There ore special
means (e
g. ascilloscope)
provided for
displaying the
output f unctions.
For the tests provided by the basic a ssembly, but
the resu lts may be led to o printer, o tope punch
or teletype.
r - - - -~
:
l
l
.......__...;;;..__ TYPE
l l 34641
1-----.J ffi
The above setup is completed with
o n external manitor powe red from an
external power supply C+ S.B V/ 3.5A)

TYPE 34641
®
-----,
l
l
-- _
For continuous monitoring. For the
..
combined manitoring of a 100-channel
auto-correlation function and
power density function.
l
l
l
l
'--
l
l
- ..l
An optimum setup
with two external
monitors.
TYPE 34641
@
monitoring.
An optimum setup provided a general-purpose
oscilloscope and peripherals
ore available.
An optimum
external monitor.
setup with an
EB
PERIPHERALS
PERIPHERALS
Ci)

10
The principel operotion modes of the equípment
are the generation of correlation functions,
línear or exponentíal averaging thereof
and the investigatien of their behavíour wíthín
the gíven domain. The analyser generates digitaily
a relay correlation functíon, substituting an
i -bit bínary word for the signal coming through
one measuring channel ín the samplíng time
ínstants (substitutíng a 5-bit binary word for
the signal coming through the other measuring
channel). The 1-bít manitoring is made wíth respect
to a pseudo-random auxílíary signa l {also
called .,dither" ). The way of sampling varies
wíth the delay cycle time.
.. t
x(t)
y(t) L__,S,_b",i_,_,_ ts _ _ _ _____, l ~b i t multipl i e r
Sym metrical sampling (SS) in slow modes J
,
'~!
i -bit multlplier
Botch sornpling (BS) in medium-rate modes
l -bit register 1 bit reg ister
x(t)
1-bit
multiplier
Shift sampling (ShS) in fastest modes.
J

ln addition to linear averaging, the other averaging
procedure applied by the analyser enables
the process parameter under test to be studied
continuously over a long period of time. The
exponential .,forgetting" typical of the analogue
RC complex, may be written with the help of
the follawing digital arithmetic procedure:
x. +
l ~
Subtroctor
-~
f ...
1
2K
'r!
Adde r
1 ..
1 Register 1--
Black diogram of exponentiol overogíng, K=4 through 15
r
ln the memory of the basic assembly, the result
function is represented by a function sector
consisting of 100 digital samples. ln the course
of the transformation to be carried out, the initio!
signal is regarded to be the periodic repetition
of that sector: the Fourier series of the
signal is generated. The actual frequency resolutien
to be obtained is equal to be reciprocal
of cycle time; the highest actual frequency ls,
as a rule, a hundred times thereof. To better
illustrate the result of transformation, the
number of frequency points may be selected to
be greater, too.
function
to be transformed
o cosine
multipller function
( 2n) cos N n · m
T = 1\ L t
-----,!'
weighting function
Of N sampled values, M=N/2 freq uency points
can be obtained. The m-th real or imaginary
frequency component can be obtained from the
follawing formulae:
N-1
Am= .2 xlnl)· w(nl)· cos l:._l_l) n·m
n= O \ N N N

Responsible publisher: director-general József Kiss lovárt
Editor : László Csé p e
Magyar Hirdetó - Nyomda Zolaegerszeg 79 1287
Manufactured by:
ELEKTRONIKUS M~RÖKÉSZULÉKEK GYARA
WORKS FOR ELECTRONIC MEASURING GEAR
H-1163 Budapest, Cziróky u. 26-32.
Telex : 22-4535
Exported by:
METRIMPEX
HUNGARIAN FOREIGN TRADING COMPANY
FOR INSTRUMENTS
H-1391 Budapest, P.O.B. 202.
Cable: INSTRUMENT, Budapest, HUNGARY