HP 41951A Quick start guide

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41951
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PACKARD
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for HP 4195A
OPERATI
1987
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WARRANTY AND ASSISTANCE
All Hewlett-Packard products are warranted against defects in materials and
workmanship. This warranty applies for one year from the date of delivery, or, in
the case of certain major components listed in the operating manual, for the
specified period. We will repair or replace products which prove to be defective
during the warranty period provided they are returned to Hewlett-Packard. No
other warranty is expressed or implied. We are not liable for consequential
damages.
For any assistance, contact your nearest Hewlett-Packard Sales and Service
Office. Addresses are provided at the back of this manual.

MANUAL CHANGES
HP
41951A
MANUAL
IDENTIFICATION
Impedance Test Kit
for HP 4195A
Model Number: HP 41951A
Date Printed: November, 1987
Part Number: 41951-90000 ^ ^ ^^ -
This supplement contains information for correcting manual errors and for adapting the manual te newer instruments that contain improvements
or modifications not documented in the existing manual, | | 24 | m :
To use this supplement! 00
1. Make all ERRATA corrections А ;
2. Make all appropriate serial-number-related changes listed below
SERIAL PREFIX OR NUMBER MAKE MANUAL CHANGES SERIAL РНЕН!Х OR NUMBER MAKE MANUAL CHANGES
ALL
P New Нет
ERRATA
> Раде 1-3, Table 1-2. Contents
Change the part number of item 1, Impedance Test Adapter, to 41951-61001.
Page 1-6, Figure 1-3. Impedance Measurement Accuracy
Change
the
chart's
inductance
axis
10fH
and
100fH
scale
labels
to
10рн
and
100pH,
respectively.
NOTE
Manual
change
supplements
are
revised
as
often
as
necessary
to
keep
manuals
as
current
and
accurate
as
possible.
Hewfett-Packard
recommends
that
you
periodically
requesi
the
latest
edition
of
this
supplement.
Free
copies
are
available
from
all
HP
offices.
When
requesting
copies,
quote
the
manual
identification
information
from
your
supplement,
or
the
model
number
and
print
date
from
the
title
page
of
the
manual.
| 7 HEWLETT
Date/Div: February, 1989/33 /) PACKARD
Page: 1 of 1
PRINTED IN JAPAN

CHANGE 1
Page 6-6, Table 6-3. Replaceable Parts
Change item 5 as follows.
Reference
Designator
HP
Part
Number
Qty.
Description
|
1250-1811 N(f)-SMA(f) Adapter (with NUT)
2190-0054 Washer

U
so
OPERATION
NOTE
MODEL
41951А
IMPEDANCE
TEST
KIT
for
HP
4195A
SERIAL
NUMBERS
This
operation
note
a
pplies
directly
to
41951As
with
2746J-
prefixed
Serial
numbers.
(O
COPYRIGHT:
YOKOGAWA-HEWLETT-PACKARD,
LTD.,
1987
9-1,
TAKAKURA-CHO,
HACHIOJI-SHI,
TOKYO,
JAPAN
Manual
Part
No.
41951-90000
Microfiche
Part
No.
41951-90050
Printed:
Nov.
1987
|

TABLE
OF
CONTENTS
Section
Title
Page
1.
GENERAL
INFORMATION
1-1.
INTRODUCTION
1-1
1-2.
DESCRIPTION
124
4-3.
SPECIFICATIONS
1-1
1-4.
SAFETY
CONSIDERATIONS
1-1
1-5.
UNITS
COVERED
BY
THIS
MANUAL.
1-2
1-6.
CONTENTS
1-3
1-7.
ACCESSORIES
AVAILABLE
1-3
2.
INSTALLA
TION
2-1.
INTRODUCTION
2-1
2.2,
INITIAL
INSPECTION
2-1
2-3.
INTERCONNECTIONS
2-1
2.4,
STORAGE
ENVIRONMENT
2-2
2.5.
PACKING
2-2
3.
OPERATI
ON
3-1.
INTRODUCTION
3-1
3.2.
BLOCK
DIAGRAM
3-1
3.3.
APC-7
CONNECTOR
3-1
3-4.
CONNECTING
TEST
FIXTURE
3-2
3-5.
MEASUREMENT
CALIBRATION
CONSIDERATION
3-2
3.5.1.
One
Port
Full
Calibration
3.2
3.5.2,
Рой
Extension
3-3
3.5.3.
Offset
Compensation
3-3
3.6.
TEST
SIGNAL
LEVEL
AND
OUTPUT
IMPEDANCE
3-4
3.7,
DC
BIAS
3-5
3-7-1.
internal
DC
Bias
3-5
3-7-2.
External
DC
Bias
3-5
4
VERIFICA
TION
TEST
4.4.
INTRODUCTION
4-1
4-2.
EQUIPMENT
REQUIRED
|
4-1
4-3.
CALIBRATION
CYCLE
4-1
4-4,
ОС
PATH
CHECK
4-2
4-5,
RF
PATH
CHECK
4-3
5.
MANUAL
CHANGES
5-1.
INTRODUCTION
5-1
5.2.
MANUAL
CHANGES
5-1
6.
SERVICE
6-1.
INTRODUCTION
6-1
6-2.
SCHEMATICS
AND
REPLACEABLE
PARTS
6-1

GENERAL INFORMATION
SECTION 1
GENERAL INFORMATION
1-1. INTRODUCTION
This operation note provides the information necessary to use the HP 41951A Impedance
Test Kit with the HP 4195A Network/Spectrum Analyzer. Refer to ihe 4195A's Operation
Manual for specific 4195A operating procedures.
1-2. DESCRIPTION
The 41951A Impedance Test Kit is an accessory for the 4195A. Figure 1-1 shows the con-
tents of the HP 419514.
Figure 1-1. Contents of HP 41951A
1-3. SPECIFICATIONS
The specifications for the 41951A Impedance Test Kit is listed in Table 1-1. The specifica-
tions are performance standards or limits. The 41951A meets all of the specifications listed
in Table 1-1 when shipped from the factory.
1-4. SAFETY CONSIDERATIONS
The 41951A Impedance Test Kit conform to the safety requirements for IEC 348, and CSA
556B instruments, and is shipped from the factory in a safe condition. This operation note
contains information, CAUTIONS, and WARNINGS which must be followed by the user to
ensure safe operation.
1-1

GENERAL INFORMATION
1-5. UNITS COVERED BY THIS OPERATION NOTE
Hewlett-Packard uses a two-part, nine character serial number which is stamped on the
serial number plate ( see Figure 1-2 ) attached to the inside of the carrying case. The first
four digits and a letter are the prefix and the last five digits are the suffix of the serial num-
ber. The letter in the serial number identifies the country where the instrument was man-
ufactured. The prefix is same for all identical instruments, it changes only when a change is
made to the instrument, The suffix, however, is assigned sequentially and is different for
each instrument. This operation note applies to instruments with serial number prefixes
listed under Serial Numbers on the title page. |
l | 80 YOKOGAWA HEWLETT-PACKARD
SERIAL NO.
MADE IN SABAN 20120
Figure 1-2. Serial Number Plate
Units manufactured after this operation note was printed may have a serial number prefix
which is not listed on the tite page. An unlisted serial number prefix indicates that the in-
strument may be different from those described in this operation note. Operation notes for
new instruments may be accompanied by a yellow Manual Changes supplement page, or
have a different part number. This supplement contains "Change Information" explaining
how to adapt this operation note to newer instruments.
in addition to change information, the supplement may contain information for correcting
errors ( Errata) in previous operation notes. To keep this operation note as current and
accurate as possible, Hewlett-Packard recommends that you periodically request the latest
Manual Change supplements. The supplement for this operation note is identified by the
Print Date and Part Number, both of which appear on the operation note's title page.
For information concerning the serial number prefixes not listed on the title page or in the
Manual Change supplements, contact your nearest Hewlett-Packard Sales office. |
1-2

GENERAL INFORMATION
1-6. CONTENTS
Table 1-2 lists the contents, and includes No. which are the same as the designation in
Figure 1-1, Description, Qty. ( Quantity ), and HP part number.
Table 1-2. Contents
Description | HP Part Number
PN 41951-69001
PN 04191-85300
PN 04191-85301
PN 04191-85302
PN 41951-61602
PN 1250-0778
PN 8120-1839
PN 41951-60001 *
impedance Test Adapter
0 О Calibration Standard
50 О Calibration Standard
0$ Calibration Standard
N(m)-N(m) Cable
N(m)-N(m) Adapter
BNC(m)-BNC(m) Cable
Carrying case
M
= мм № мм 44 244 2-4 -8
я P a : Up POMA AA D mt imt tr uy ГА тета TIRES ЕЕ T P MY SUITE
1.
Мое The serial number plate is not included in the carrying case.
1-7. AVAILABLE ACCESSORIES
For making certain types of measurements and for convenience in connecting samples, five
accessories are available. Each is designed to meet the various measurement requirements
of a variety of test devices. All accessories are developed with careful consideration to ac-
curacy, reliability, and ease of use. A brief description and a photo of each available acces-
sory are given in Table 1-3.
1-3

Table 1-1.
41951А Specifications
Usable Frequency Range:
DC Bias Range:
UNKNOWN Роге.
Weight:
Operation Environment:
Storage Environment:
GENERAL INFORMATION
Specifications ( 1 of 2)
100 kHz to 500 MHz
+40 V, 20.5 А
APC-7 Connector
Approx. 2.7 kg
Approx. 0.55 ka ( Test Adapter only )
0°С to 55°С
< 95% ВН at 40°C
-40°C to 70°C
The following specifications apply to the 4195A when used with the 41951A.
Measurement Parameter:
Test Frequency Range:
Signal Level at DUT ( nominal ):
Note:
Output impedance:
DC Bias (supplied from 41954):
Voltage Range
Resolution
Accuracy
Maximum Current
121,1, 6, R, X, О, B, L, C, D, Q(-1/D)
100 kHz to 500 MHz
-62 dBm to +3 dBm at 50 О load
Signal level (at DUT) is 12 dB lower than
4195A output level.
Nominal 50 Q
-40 V to 40 V
10 mV
%( 0.12%+12 mV ) at 23°C +5°С
£20 mA
1-4

GENERAL INFORMATION
Table 1-3. Specifications (2 of 2 )
— й — x
РАСА. ----- зашли п п AI
Measurement Range and Highest Resolution:
M —————————
Parameter Resolution
(21, 8,Х 30 то to 30 КО 10 та
IY G, B 30 uS to 30 5 10 us
-180? to 180? 0.01?
10 pH to 30 mH 10 pH
10 fF to 30 МЕ 10 fF
0.001 to 10 0.0001
0.1 to 1000 0.01
Measurement Accuracy ( Supplemental Performance Characteristics ):
Measurement accuracy is specified at the connecting surface of the APC-7
connector, under the following conditions.
1) Warm up Time: »30 minutes
2) Ambient Temperature: 23°С +5°С
at the same temperature at which
Calibration was performed
3) Output Signal Level: 15 dB greater than the Input Range of
reference port ( the value indicated by
* RANGE R=” on the 4195A’s display )
4) Signa! Level at DUT: -20 io 43 dBm
5) Correction: ON
Figure 1-3 shows the impedance measurement accuracy of HP 4195A
when used with tne 419514.

GENERAL INFORMATION
1рЕ
ТОНН
100nH
100pH
Note: D Accuracy
(at 0<0.2)
Za (5)
100
Ва =
100K 300K 1M 10M 100M 200M
Test Frequency [Hz]
Figure 1-3. Impedance Measurement Accuracy ( 1 of 4)
1-6

GENERAL INFORMATION
The above data applies to the averaged measurement data ( ap-
plies when the VIDEO FILTER is on ).
When the DC bias is used, use the following value of A, B, and C
in place of the above value, to calculate the measurement
accuracy.
(1.5%0.006 x 1)8
14100 14250
15 Х ------ СО (B«2mF.1077)y штетен
3 250
112%. 5 | 14250 us (бате 1072) х 12250 05 c
10
25
250
10M
Test Frequency [Hz]
а: (5,040,006 x 1)%
b: (15225310723 х ев шр
100
2 1-100
с: (5+21Е.107°) х а uS
100
121-9 Accuracy:
12| accuracy 2а -А4В/|2014-0х|201)х100 (95)
9 accuracy ба = sin *(Za/100)
Where | 201 is |Z| measured. A, B and C are
obtained from the graph above.
|У|-@ Accuracy:
|Y] accuracy Ya = A+(Bx | Ут] 4C/i Ym])x100 (95)
9 accuracy Ga = біп” * (Ya/100)
Where |Ут| is |Y| measured. А, В and C are
obtained from the graph above.
Figure 1-3. Impedance Measurement Accuracy ( 2 of 4)
1-7

GENERAL INFORMATION
В, X Accuracy ( depends on D y:
яв иг лж сс: RUNE лен
xg.
22
09
28(8).2,
Za(X)
(5)
л
2845)
100 (82)
D can be calculated as вух,
R/(2xmxfxLs) or RX2xmxfxCs
Ө can be calculated as tan" "(Х/В),
tan” * (2xmxfxLs/R) or
tàn" *(1/(Rx2xnxfxCs))
Za(R) = A+(B/|Rm|+Cx| Вга|)х100 (95)
Za(X) = АЧВ/| Xm |+Сх | Хт|)х100 (96)
Rm and Xm are the measured R and X, respec-
tively. A, B and C are obtained from the preced-
ing graph.
G, B Accuracy ( depends on D ):
р<0 0. 2<D<5
т. 128) Үа(6) го,
гїн
wo
c
|
Фо)
DERE
D can be calculated as G/B,
G/(2X TxfxCp) or Gx2xmxfxLp
9 can be calculated as tan” * (B/G),
tan" * (2x m xfxCp/G) or
tan” * (1/(Gx2xvxfxLp))
Ya(G) = АҢВх|От| +С/ | Gm] )х 100 (96)
Ya(B) = A«(Bx| Bm|4C/] Вт|)х100 (96)
Gm and Bm are measured G and B, respectively.
A, B and C are obtained from the preceding
graph.
Figure 1-3. Impedance Measurement Accuracy ( 3 of 4)
1-8

GENERAL INFORMATION
D Accuracy:
2а/100 (2а/100)х(1+02)
Where Za is |2 | accuracy
і Accuracy ( depends on D y):
La = АҢВ/ 21 «Cx| ZI )х 100 (96)
Where 121| = 2x mxfxLm, f is frequency in Hz
and Lm is measured L. A, B and C are obtained
from the preceding graph.
C Accuracy ( depends on D ):
050.2 0.2«D
Са = A+(B/{ 2с|+Сх | 2с |)x100 (96)
Where |Zc| = 1/2x1xfxCm, f is frequency in Hz
and Cm is the measured C. A, B and C are
obtained from the preceding graph.
Figure 1-3. Impedance Measurement Accuracy ( 4 of 4)
1-9

GENERAL INFORMATION
Table 1-3. Available Accessories ( 1 of 2)
HP
16091A
Coaxial
Fixtures
Test Fixtures ( coaxial termination type ) for hoiding
a piece of sample holders accommodate a cylindri-
cal sample in their respective inner chambers. Two
kinds of fixtures fit samples dimensions given
below: |
Fixture Max. dimensions
04191-85302
16091-60012.
Usable frequency range: DC to 1000 MHz.
Electrical length: 1.87 cm ( typical ).
Maximum applied DC bias voltage: +40 V.
Note: The 16091A fixture of 7 mm inner diameter
( P/N 04191-85302 ) is actually the same as the OS
standard termination. Thus, this fixture is not sup-
plied with the 16091A fixture set since the furnished
OS termination can be used.
HP
16092A
Spring
Clip
Fixture
Test fixture for connecting axial and radial lead
components, and leadless chip components. The
spring clip contacts can be adjusted to the dimen-
sions given below.
і 1
2—24mm
A slide gauge provides direct read-out of the length
of the test sample. Maximum applicable DC bias is
2150 V/t0.5 А.

GENERAL INFORMATION
Table 1-3. Accessories Available ( 2 of 2 )
HP 16093A Binding Post Fixture
A test fixture used when measuring miniature axial
and radial lead components. Two binding post
terminals at intervals of 7 mm on the terminal deck
ensure optimum contact of terminals and the test
sample leads.
The maximum DC bias that can be applied is
+40 V/+0.5 A.
HP 16093B Binding Post Fixture
A Test fixture for connecting common axial and
radial lead components. Three binding post ter-
minals are located on the terminal deck as shown
below.
©
i0. 5(mm)
The maximum DC bias that can be applied is
+40 У/+0.5 А.
НР 16094А Probe Fixture
Test Fixture for measurement of circuit impedances
and components mounted on circuit assemblies.
The probe adapter unit can be attached at the tip of
an extension line connected to the test port. The
probe connector fits APC-7 connector of a coaxial
test cable or a flexible air line. Probe needle inter-
val is variable from 1 mm to 15 mm. Electrical
length. compensation in the instrument must be
adjusted for probe cable length.
Usable frequency range: DC to 125 MHz.
Electrical length: 2.32 cm ( typical ).
Maximum applied DC bias voltage: +40 V.
1-11

INSTALLATION
SECTION 2
INSTALLATION
2-1. INTRODUCTION
This section provides installation instructions for the HP 41951A Impedance Test Kit. It also
includes information on the initial inspection, damage claims, preparation for using the
41951A, packaging, storage, and shipment.
2-2. INITIAL INSPECTION
The 41951A Impedance Test Kit meet all of the specifications listed in Table 1-1. Upon
receipt, inspect the shipping container for damage. И the shipping container or the cushion-
ing material has been damaged, keep the container and packing material until the contents
have been checked for completeness and the test kit has been checked out mechanically
and electrically. The contents should be as shown in Figure 1-1. The procedures for check-
ing the general electrical operation are given in Section 4.
If anything is missing, damaged ( scratches, dents, broken connectors, etc. ), or if perfor-
mance does not meet the verification test limits, notify the nearest HP Sales office ( see the
list at the back of this operation note ). The HP Sales Office will immediately arrange for
repair or replacement without waiting for a claim settlement.
2-3. INTERCONNECTIONS
The interconnection between the 41951A and the 4195A, is achieved by connecting the
Impedance Test Adapter to the 4195A's Channel 1 or 2, using the furnished Adapters and
Cables.
1. Connect two female N-type connectors; INPUT S and OUTPUT В, to the 4195A's OUT-
PUT S1 ( or 82) and INPUT R1 ( or R2) connectors, using two furnished N(m)-N(m)
Adapters, respectively.
NOTE
When connecting the INPUT S and OUTPUT В connectors, do not try to tighten
one connector completely, alternately tighten each connector, little by little, until
both connectors are tight.
2. Connect the OUTPUT T connector to the 4195A's INPUT T1 ( or T2 ) connector, using
the furnished N(m)-N(m) Cable.
3. If the DC bias supplied from the 4195A is used, connect the DC SOURCE INPUT con-
nector to the 4195A's DC SOURCE OUTPUT connector using the furnished BNC(m)-
BNC(m) Cable.
2-1

INSTALLATION
NOTE
if the DC bias supplied from an external DC power supply is used, connect the DC
SOURCE INPUT connector to the power supply's output terminal. The outer con-
ductor of the DC SOURCE INPUT connector is grounded.
2-4, STORAGE ENVIRONMENT
The 41951A may be stored or shipped under the following environmental conditions.
Temperature -40°С to 70°C
The unit must be protected from temperature extremes which can cause condensation.
2-5. PACKING
Original Packing.
Containers and packing material identical to those used in factory packaging are available
from Hewlett-Packard. If the unit is being returned to Hewlett-Packard for servicing, attach a
tag indicating the type of service required, return address, model number and full serial
number.
Other Packing.
The following general instructions should be used for repacking with commercially available
materials:
a. Wrap the unit in heavy paper or plastic. If shipping to a Hewlett-Packard Sales Office
or Service Center, attach a tag indicating the type of service required, return address,
model number and the full serial number.
b. Use a strong shipping container. A double-walled carton made of 350 pound test
material is adequate.
c. Use enough shock absorbing material ( a 3 to 4 inch layer ) around all sides of the
unit to provide a firm cushion and to prevent the unit from moving inside the
container.
d. Seal the shipping container securely.
e. Mark the shipping container FRAGILE to ensure careful handling.
f. In any correspondence, refer to unit by its model number and the full serial number.
NOTE
if you ever need to return the 41951A for servicing, HP recommends that you
return your 4195A also so that system performance can be verified after repairs
are made.
2-2