JPH01173685U - - Google Patents
Info
- Publication number
- JPH01173685U JPH01173685U JP6988788U JP6988788U JPH01173685U JP H01173685 U JPH01173685 U JP H01173685U JP 6988788 U JP6988788 U JP 6988788U JP 6988788 U JP6988788 U JP 6988788U JP H01173685 U JPH01173685 U JP H01173685U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- under test
- reference oscillator
- circuit under
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 5
- 230000005540 biological transmission Effects 0.000 claims 3
- 239000013078 crystal Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Description
第１図はこの考案の一実施例を説明するための
ブロツク図、第２図はこの考案の変形実施例を示
すブロツク図、第３図は従来の技術を説明するた
めのブロツク図である。
１００……スペクトラムアナライザ、２００…
…トラツキングジエネレータ、３００……被測定
回路、４００……周波数計測手段、５００……判
定手段、６００……制御手段、２０１……基準発
振器、１０２，１０３，２０２，２０３……周波
数変換器、１０４，１０５……局部発振器、１０
６……中間周波増幅器、１０７……検波回路、１
０８……表示器。
FIG. 1 is a block diagram for explaining an embodiment of this invention, FIG. 2 is a block diagram for showing a modified embodiment of this invention, and FIG. 3 is a block diagram for explaining a conventional technique. 100...Spectrum analyzer, 200...
... Tracking generator, 300 ... Circuit under test, 400 ... Frequency measurement means, 500 ... Judgment means, 600 ... Control means, 201 ... Reference oscillator, 102, 103, 202, 203 ... Frequency converter , 104, 105...Local oscillator, 10
6...Intermediate frequency amplifier, 107...Detection circuit, 1
08...Indicator.
Claims (1)
換器によつて周波数掃引信号に変換し、この周波
数掃引信号を被測定回路に与え、被測定回路から
出力される周波数掃引信号を取込んで周波数変換
器で中間周波信号に変換し、この中間周波信号を
振巾検波して表示器に与え、表示器に被測定回路
の伝送特性を表示させるようにした伝送特性測定
装置において、 Ｂ 上記基準発振器を水晶発振型電圧制御発振器
によつて構成すると共に水晶発振型電圧制御発振
器の発振周波数を計測する手段と、この周波数計
測手段で計測した計測値が正規の値に合致してい
るか否かを判定する判定手段と、この判定手段の
判定結果によつて上記基準発振器の発振周波数を
制御し基準発振器の発振周波数を正規の値に合致
させる制御手段と、 を付加して成る伝送特性測定装置。[Claims for Utility Model Registration] A. Converting the reference signal output from the reference oscillator into a frequency sweep signal by a frequency converter, applying this frequency sweep signal to the circuit under test, and frequency sweep output from the circuit under test. A transmission characteristic measuring device that takes in a signal, converts it to an intermediate frequency signal using a frequency converter, performs amplitude detection on this intermediate frequency signal, and supplies it to a display, which displays the transmission characteristics of the circuit under test. In B, the reference oscillator is constituted by a crystal oscillation type voltage controlled oscillator, and means for measuring the oscillation frequency of the crystal oscillation type voltage controlled oscillator, and the measured value measured by this frequency measuring means matches a normal value. and a control means for controlling the oscillation frequency of the reference oscillator according to the determination result of the determination means to make the oscillation frequency of the reference oscillator match a normal value. Transmission characteristics measurement device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6988788U JPH0642217Y2 (en) | 1988-05-25 | 1988-05-25 | Transmission characteristic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6988788U JPH0642217Y2 (en) | 1988-05-25 | 1988-05-25 | Transmission characteristic measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01173685U true JPH01173685U (en) | 1989-12-08 |
| JPH0642217Y2 JPH0642217Y2 (en) | 1994-11-02 |
Family
ID=31295153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6988788U Expired - Lifetime JPH0642217Y2 (en) | 1988-05-25 | 1988-05-25 | Transmission characteristic measuring device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0642217Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4704384B2 (en) * | 2007-03-20 | 2011-06-15 | アンリツ株式会社 | Spectrum analyzer |
-
1988
- 1988-05-25 JP JP6988788U patent/JPH0642217Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4704384B2 (en) * | 2007-03-20 | 2011-06-15 | アンリツ株式会社 | Spectrum analyzer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0642217Y2 (en) | 1994-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4158962A (en) | Cable tension measuring apparatus | |
| US4004230A (en) | Critical parameter receiver tester | |
| US4866436A (en) | Device for transmitting measurement values of a sensor | |
| JPH01173685U (en) | ||
| JPS592349B2 (en) | power measurement device | |
| JP3151752B2 (en) | Partial discharge measurement method | |
| SU983469A2 (en) | Ultrasonic vibrometer | |
| SU875294A2 (en) | Device for measuring frequency deviation rate | |
| US4175252A (en) | Meter drive circuit | |
| SE8205399D0 (en) | PROCEDURE AND DEVICE FOR SEATING OF FREQUENCY | |
| JPS60201265A (en) | Insulation resistance tester | |
| JPS5833578Y2 (en) | VCO characteristic measuring device | |
| SU721678A1 (en) | Method and device for determining two components of mechanical oscillations of a structure | |
| JPS59195166A (en) | Rough measuring method of frequency | |
| JP2509796Y2 (en) | Gas pressure gauge | |
| JPS61127467U (en) | ||
| SU896567A1 (en) | Meter of determining amplitude-frequency characteristics of piezoelectric transducers | |
| SU1659911A1 (en) | Central bandwidth frequency meter for selective devices | |
| SU767553A1 (en) | Testing set for preparing vibration measuring channels for field tests | |
| SU1474568A1 (en) | Method and apparatus for automatic monitoring of power quality tester | |
| SU1191841A1 (en) | Method of controlling frequency of parametric amplifier pump | |
| JP3154154B2 (en) | Parallel T-type high-frequency bridge device | |
| JPH0262170B2 (en) | ||
| SU1642260A1 (en) | Device for measuring vibration parameters | |
| JPH0419571A (en) | Bioresistance meter |