JPS61140985U - - Google Patents
Info
- Publication number
- JPS61140985U JPS61140985U JP2345885U JP2345885U JPS61140985U JP S61140985 U JPS61140985 U JP S61140985U JP 2345885 U JP2345885 U JP 2345885U JP 2345885 U JP2345885 U JP 2345885U JP S61140985 U JPS61140985 U JP S61140985U
- Authority
- JP
- Japan
- Prior art keywords
- signal source
- sample
- circuit board
- printed circuit
- impedance
- 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.)
- Pending
Links
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 2
- 238000012360 testing method Methods 0.000 claims 2
- 238000002847 impedance measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Tests Of Electronic Circuits (AREA)
Description
第１図は本考案による実施例を示すブロツク図
、第２図は従来技術の例を示すブロツク図。
１，８：発振源、２：試料、６：ＡＣ／ＤＣ変
換器、１０：比較器。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing an example of the prior art. 1, 8: oscillation source, 2: sample, 6: AC/DC converter, 10: comparator.
Claims (1)
ーダンス測定回路において、交流信号源と並列に
ステツプ信号源を設け、当該測定回路の安定性を
確認するためにこの矩形波信号源を測定信号源と
して投入し、その出力を被測定試料を通じ、電圧
増幅器及び電流増幅器を介して被測定試料の電圧
・電流成分によりインピーダンスを割出す前に、
矩形波出力の直流レベルの箇所を交直流変換器に
より計測して不安定な発振信号のみを検出するこ
とを特徴とした実装済プリント基板試験装置。 In the impedance measurement circuit for each component of the mounted printed circuit board test equipment, a step signal source is installed in parallel with the AC signal source, and this square wave signal source is input as the measurement signal source to confirm the stability of the measurement circuit. , the output is passed through the sample to be measured, and before determining the impedance from the voltage and current components of the sample to be measured via a voltage amplifier and a current amplifier,
A mounted printed circuit board testing device characterized by measuring the DC level point of the rectangular wave output using an AC/DC converter and detecting only unstable oscillation signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2345885U JPS61140985U (en) | 1985-02-22 | 1985-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2345885U JPS61140985U (en) | 1985-02-22 | 1985-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61140985U true JPS61140985U (en) | 1986-09-01 |
Family
ID=30516710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2345885U Pending JPS61140985U (en) | 1985-02-22 | 1985-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61140985U (en) |
-
1985
- 1985-02-22 JP JP2345885U patent/JPS61140985U/ja active Pending
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