GB1200688A - Electronic test apparatus for the automatic examination of a characteristic curve of a circuit element - Google Patents
Electronic test apparatus for the automatic examination of a characteristic curve of a circuit elementInfo
- Publication number
- GB1200688A GB1200688A GB45761/68A GB4576168A GB1200688A GB 1200688 A GB1200688 A GB 1200688A GB 45761/68 A GB45761/68 A GB 45761/68A GB 4576168 A GB4576168 A GB 4576168A GB 1200688 A GB1200688 A GB 1200688A
- Authority
- GB
- United Kingdom
- Prior art keywords
- test
- network
- photo
- characteristic
- output
- 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.)
- Expired
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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2832—Specific tests of electronic circuits not provided for elsewhere
- G01R31/2836—Fault-finding or characterising
- G01R31/2837—Characterising or performance testing, e.g. of frequency response
-
- 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
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
-
- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
- G01R31/2822—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere of microwave or radiofrequency circuits
-
- 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
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2894—Aspects of quality control [QC]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Individual Semiconductor Devices (AREA)
- Measurement Of Radiation (AREA)
Abstract
1,200,688. Testing characteristics of circuit elements. SIEMENS A. G. Sept.26, 1968, No.45761/68. Heading G1U. To test whether a circuit element P has a required characteristic curve over a particular range a test signal U1 varying over that range is applied to the element P, and the resultant output U2 from P is applied to a network E having a transfer characteristic which varies in an equal and opposite manner to the expected variation in U2 so that if P has the required characteristic the output U3 of network E is substantially constant. A measuring instrument M is used to determine whether the output U3 remains between fixed upper and lower limits as the test signal Ul varies. In the example shown for testing the frequency characteristic of a filter, the network E comprises an amplifier having a frequency dependant feedback path, the test signal being swept over a required frequency range during the test. The meter M is a mirror galvanometer, and if, during the test, the light beam strikes upper or lower limit photodiodes F1, F2 a pulse is emitted which operates a control device St to reject the filter under test and give an audible or visual warning. If greater selectivity is required four limit-valve photo-diodes may be provided. In a sequential testing system each test cycle is initiated by the lower limit photo-diodeF2 which responds as the light beam first moves past it to trigger the generator G. Should the photo-diode not respond within a given period a timer unit T indicates that the test sequence has been interrupted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB45761/68A GB1200688A (en) | 1968-09-26 | 1968-09-26 | Electronic test apparatus for the automatic examination of a characteristic curve of a circuit element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB45761/68A GB1200688A (en) | 1968-09-26 | 1968-09-26 | Electronic test apparatus for the automatic examination of a characteristic curve of a circuit element |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1200688A true GB1200688A (en) | 1970-07-29 |
Family
ID=10438484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB45761/68A Expired GB1200688A (en) | 1968-09-26 | 1968-09-26 | Electronic test apparatus for the automatic examination of a characteristic curve of a circuit element |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1200688A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102348992A (en) * | 2009-03-09 | 2012-02-08 | 罗伯特·博世有限公司 | Method for monitoring the electrical properties of a load circuit controlled in clocked fashion and circuit arrangement for carrying out the method |
-
1968
- 1968-09-26 GB GB45761/68A patent/GB1200688A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102348992A (en) * | 2009-03-09 | 2012-02-08 | 罗伯特·博世有限公司 | Method for monitoring the electrical properties of a load circuit controlled in clocked fashion and circuit arrangement for carrying out the method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1472894A (en) | Interferometric methods and apparatus for measuring distance to a surface | |
Franciscangelis et al. | Real-time distributed fiber microphone based on phase-OTDR | |
SE7901830L (en) | BREATH TEST DEVICE | |
GB1212367A (en) | A high frequency signal level measuring instrument | |
GB1200688A (en) | Electronic test apparatus for the automatic examination of a characteristic curve of a circuit element | |
US3435239A (en) | Radiation absorption tester using rc network to simulate absorption function | |
Lipatnikov et al. | Fiber-Оptic Vibration Sensor «VIB-A» | |
JPS574564A (en) | Optical device for calibrating laser range finder | |
GB1380045A (en) | Position detection and control devices | |
GB1274241A (en) | Apparatus for measuring the refraction index of a medium along a light path | |
SU934315A1 (en) | Device for measuring the weighing of fibrous strip | |
US3544892A (en) | Photo-electric apparatus for the measurement of electrical characteristics of circuit devices which are supplied during the measuring period with a varying electrical signal | |
SU393789A1 (en) | METHOD OF MEASUREMENT OF CONSUMPTION OF A RAY OF OPTICAL QUANTUM GENERATOR | |
JPS577514A (en) | Optical measuring device | |
SU655944A1 (en) | Device for measuring non-linearity of photodetectors and optical radiators | |
JPS5347866A (en) | Light receptor circuit for laser distance measurement equipment | |
SU890084A1 (en) | Nuclear absorption spectrophotometer measuring device | |
GB1245764A (en) | Improvements in or relating to test equipment for electrical or electronic devices | |
SU1553923A1 (en) | Apparatus for recording amplitude modulation of voltage | |
SU361391A1 (en) | DEVICE FOR MEASUREMENT OF THE DIAMETER OF THE PRODUCT DURING ITS MANUFACTURE | |
SU430514A1 (en) | AUTOMATIC DEVICE RADIOMETRIC TYPE FOR DETERMINING THE RELATION OF SIGNAL / NOISE OUTPUT OF THE RECEIVER DURING THE PULSE SIGNAL | |
JPS57116274A (en) | Test device for laser range measuring device | |
WO1992018845A3 (en) | Methods of and apparatus for measurement using acousto-optic devices | |
SU798640A1 (en) | Apparatus for measuring signal and interference of photoreciever | |
SU1702181A1 (en) | Displacement measuring device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |