JPS57133365A - Inspecting device for continuity and short circuit - Google Patents
Inspecting device for continuity and short circuitInfo
- Publication number
- JPS57133365A JPS57133365A JP56018993A JP1899381A JPS57133365A JP S57133365 A JPS57133365 A JP S57133365A JP 56018993 A JP56018993 A JP 56018993A JP 1899381 A JP1899381 A JP 1899381A JP S57133365 A JPS57133365 A JP S57133365A
- Authority
- JP
- Japan
- Prior art keywords
- unit
- level
- output
- short circuit
- driving
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/52—Testing for short-circuits, leakage current or ground faults
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
PURPOSE:To obtain an inexpensive inspecting device which requires no recording device and the like, by providing a reference unit for a unit to be inspected, by impressing a pulse a corresponding input terminal of each unit sequentially and by comparing output pulses from all output terminals with each other. CONSTITUTION:By a driver 7 driving the reference unit 9 according to a decorder 6 and a driver 8 for driving the unit 10 to be inspected according to the same, driving is conducted at the timing of T1, T2... for every terminal of each unit. The output pulse of each unit is passed through level detecting circuits 11 and 12 and inputted thereafter in a magnitude comparator 13. At the time when there are no short circuit and no disconnection, a latch circuit 16 is not set, since the level of an Anot equal to B output is held continuously at an L level in the comparator 13. In the case when there is any short circuit or disconnection, the level of the Anot equal to B output turns occasionally to be an H level, and in this case, the latch circuit is set to drive an inferiority indicator 18, while making a numeric indicator 5 indicate a place in the state of inferiority.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56018993A JPS57133365A (en) | 1981-02-13 | 1981-02-13 | Inspecting device for continuity and short circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56018993A JPS57133365A (en) | 1981-02-13 | 1981-02-13 | Inspecting device for continuity and short circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57133365A true JPS57133365A (en) | 1982-08-18 |
Family
ID=11987087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56018993A Pending JPS57133365A (en) | 1981-02-13 | 1981-02-13 | Inspecting device for continuity and short circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57133365A (en) |
-
1981
- 1981-02-13 JP JP56018993A patent/JPS57133365A/en active Pending
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