CN1886666A - Portable electric testing equipment - Google Patents
Portable electric testing equipment Download PDFInfo
- Publication number
- CN1886666A CN1886666A CNA2004800351869A CN200480035186A CN1886666A CN 1886666 A CN1886666 A CN 1886666A CN A2004800351869 A CNA2004800351869 A CN A2004800351869A CN 200480035186 A CN200480035186 A CN 200480035186A CN 1886666 A CN1886666 A CN 1886666A
- Authority
- CN
- China
- Prior art keywords
- voltage
- level
- probe
- voltage level
- controller
- 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
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/06—Measuring leads; Measuring probes
- G01R1/067—Measuring probes
- G01R1/06794—Devices for sensing when probes are in contact, or in position to contact, with measured object
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16561—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in hand-held circuit testers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
A portable electric testing equipment comprising: a probe; ground contact means for contacting a ground terminal of a measured object; a voltage input unit for receiving a voltage applied from the probe; a controller for applying a test voltage of a prescribed level to the voltage input unit, and outputting a control signal for indicating a ground when a voltage level inputted from the voltage input unit is below zero level and for indicating a measurement stand-by state when the voltage level is at test voltage level and for indicating a detected voltage level when the voltage level is above a prescribed reference voltage; and display means for performing an indication according to the control signal from the controller, such that the measurement stand-by state can be easily recognized by a user, and a plurality of lamps are selectively illuminated for the user to intuitivley recognize a measured voltage.
Description
Technical field
The present invention relates generally to a kind of portable electric testing equipment, particularly can detect the portable electric testing equipment with indication measurement holding state (stand-by state).
Background technology
Common inspection with relative concept rather than absolute figure introducing vehicle electric situation, and this trend is more obvious when electrical equipment is worked with mechanical organ.Now, require the existing electric rudimentary knowledge that mechanical field is arranged again of automobile services technician, rather than concentrate on mechanical field merely.
Yet,, therefore,, must have the knowledge of machinery and electrical/electronic technical field for the automobile services technician because the complicated application of electromechanical integration in automobile increased the demand to the electric and number of electronic devices that is used for automobile.
The Service Technicians utilizes lamp tester and digital multimeter to come the voltage and the frequency of electric and electronic installation in the testing automobile.Lamp tester is designed to: according to probe and the contacting of tested object, when lamp was lighted by given voltage and frequency, the permission technician discerned voltage, frequency etc. intuitively.When the terminal of probe contact measurand, digital multimeter is to resistance, electric current, measure to voltage digitizings such as (AC/DC), and they are presented on liquid crystal diode or the segmentation display element.
Yet, lamp tester according to prior art is with the shortcoming that digital multimeter exists: when probe contacts the earth terminal of measurand and when the terminal of the contact object of not popping one's head in is in open-circuit condition, all indicate zero potential on display panel, this makes that can not distinguish current state is that open-circuit condition (the not contact terminal of popping one's head in this moment) is still measured holding state.
Open the present invention to be solving above-mentioned conventional art defective, and the object of the present invention is to provide a kind of portable electric testing equipment that can detect with the indication measurement holding state.
Summary of the invention
According to a preferred embodiment of the invention, portable electric testing equipment comprises: probe; Earthing device, it is used to contact the earth terminal of measurand; The voltage input block, it is used to receive the voltage that applies from described probe; Controller, it is used for the test voltage of specified level is applied to described voltage input block, and the output control signal, this control signal is used for when the voltage level from the input of described voltage input block is lower than zero level indication ground connection, indication measurement holding state and indicate the voltage level that is detected when this voltage level is higher than the reference voltage of regulation when this voltage level is in the test voltage level; And display device, this display device is used for realizing indication according to the control signal from described controller.
Description of drawings
In order to understand character of the present invention and purpose better, can be in conjunction with the accompanying drawings with reference to following detailed, in the accompanying drawings:
Fig. 1 is the external view of portable electric testing equipment according to the preferred embodiment of the invention;
Fig. 2 is the planimetric map of demonstration/guidance panel;
Fig. 3 is the circuit diagram of the main body shown in Fig. 1;
Fig. 4 is the circuit diagram of the voltage input block shown in Fig. 3;
Fig. 5 is a sequential chart, and it explains operation of the present invention according to input voltage; And
Fig. 6 is a synoptic diagram of the present invention shown in the actual use.
Embodiment
To describe the preferred embodiments of the present invention in detail with reference to accompanying drawing, wherein, present embodiment does not limit the scope of the invention, provides as just illustration purpose.
With reference to Fig. 1, portable electric testing equipment has hand-held pen-like shape according to the preferred embodiment of the invention.This device disposes probe 11 on the one end, and disposes the socket (not shown) that is used to contact earth terminal on its other end.This device further is equipped with main body 10 and earthing device 20 on one surface, main body 10 disposes demonstration/guidance panel 12 (referring to Fig. 2), earthing device 20 disposes plug 21, cable 22 and termination contact pincers 23, and plug 21 can connect and removably be coupled to the described socket of main body 10.
This device can further comprise probe extension fixture 30, probe extension fixture 30 have can connect/dismountable coupling unit 31, prolong cable 32 and be connected to the auxiliary probe 33 that prolongs cable 32.Probe extension fixture 30 is not a primary element of the present invention, but selectable unit.
With reference now to Fig. 3,, main body 10 comprises operating unit 110, electric input block 120, controller 130, measures indicator unit 140, segmentation indicating member 150, pattern indicator unit 160, illuminating lamp unit 170 and battery (not shown).
Electricity input block 120 is used for and will inputs to controller 130 by the voltage that probe 11 is measured, and the voltage that slave controller 130 self is exported inputs to controller 130.For example, as shown in Figure 4, electricity input block 120 can be the known voltage follow circuit, wherein, the non-oppisite phase end (+) of operational amplifier 121 is connected to voltage input end via voltage dividing potential drop/smoothing circuit 122, and end of oppisite phase (-) is connected directly to output terminal, and wherein, voltage dividing potential drop/smoothing circuit 122 comprises a plurality of resistive element R1, R2 and capacitor C1, C2.As a reference, the Reference numeral R3 of do explaination is the element protection resistance of operational amplifier 121 output terminals.
Controller 130 roles are: the predetermined test voltage of level (for example about 1 volt) is inputed to the input end of voltage input block 120 via resistor R 4 and diode DO and detect voltage level by 120 inputs of voltage input block with the output control signal, this control signal is used for: show the ground connection indication when detected voltage level is lower than zero (0) electromotive force, when detected voltage level is in the test voltage level, show the indication of measuring holding state, and when detected voltage level is higher than predetermined reference voltage (for example 3 volts), show detected voltage level.
Measure indicator unit 140 and comprise a plurality of lamp 141-143 that are arranged on indication/guidance panel 12, each lamp 141-143 is equipped with a plurality of LED D1-D9, and each diode sends the light of different colours.In the LED D1-D9 at each lamp 141-143 place is constructed to make LEDD1-D9 corresponding to one of relevant detection voltage according to the control of controller 130 and luminous.
Be installed in the digital sections that segmentation indicating member 150 on indication/guidance panel 12 comprises predetermined quantity, and come the indication measurement value by the control of controller 130, for example voltage etc., ground connection level, measure holding state or the like, wherein, described digital sections is used for that light-emitting component such as LED comes designation number or character by for example adopting.
Pattern indicator unit 160 comprises and is used to the low-voltage alarm lamp 163 of indicating the lamp 161,162 of measurement pattern and being used for the low-voltage that is lower than predetermined voltage level is reported to the police.Each lamp 161-163 is illuminated by each LED element D10-D12 that the control by controller 130 drives.
Illuminating lamp unit 170 comprises button 171 and LED 173, and button 171 is installed on indication/guidance panel 12, and LED 173 is installed in and is furnished with anti-short-circuit resistance device 172 and probe end 11, main body 10.
The LED173 that is used to throw light on need produce enough brightness, therefore, is preferably the LED element that will have high brightness and is used for LED173.
As a reference, the earth terminal that is configured in each parts on the above-described main body 10 is connected to the earth terminal of measurand via earthing device 20.
With reference to the accompanying drawings, the present invention that description is so constructed is in operating advantage.
With reference to figure 5, if with terminal contact pincers 23 clamp measurand earth terminal (for example negative (-) utmost point or the car body self of Vehicular battery), action button 112 is operated and main body 10 is access in when the user is coupled to main body 10 with the plug 21 of earthing device 20, because probe 11 does not contact with measurand, the test voltage (for example, about 1 volt) of slave controller 130 outputs is input to voltage input block 120.
Subsequently, as shown in Figure 6, controller 130 distinguishes from input voltage input block 120, that have test voltage level (for example about 1 volt), measures the information of holding state via 150 indicated numbers of segmentation indicating member.
Measuring under the situation of holding state, when the user will pop one's head in 11 contact to measurand just (+) utmost point the time, the measurand place just voltage of (+) utmost point is input to controller 130 via voltage input block 120.
Controller 130 will be compared by the voltage and the predetermined voltage level (for example about 3 volts) of voltage input block 120 inputs, result as a comparison, if the voltage of input is lower than predetermined level, the low-voltage alarm lamp 163 of pattern indicator unit 160 is illuminated, thereby the user is about low-voltage state, as shown in Figure 6 in caution.
If input voltage is higher than predetermined voltage level, then controller 130 shows via 150 pairs of detected voltage digitals of segmentation indicating member ground, and in the LED D1-D9 that measures indicator unit 140, light and corresponding, the predetermined LED of corresponding detected voltage, therefore, the user can be easily and is identified the current state of detected voltage intuitively.
When the user will pop one's head in negative (-) utmost points of 11 contact measurands or earth terminal, because the voltage that is lower than zero potential is input to voltage input block 120, controller 130 shows the information that potential to grounds indicate (for example " 0.0 " etc.) via segmentation indicating member 150.Simultaneously, in the LED D1-D9 that measures indicator unit 140, light LED that be set to zero potential is indicated, predetermined.
Therebetween, when being difficult to see measurand owing to dark, the LED 173 that is embedded in the electroluminescent lamp unit 170 is lighted when button 171 is pressed, so that allow probe 11 to illuminate position pointed, easily the terminal of measurand is checked thus.
Above-mentioned portable electric testing equipment according to the present invention is useful for the various sensors of testing vehicle in service shop and electric and electronic installation, especially for test battery, motorized window (power window) motor, thrower, power transistor, throttle valve position sensor, lambda sensor, vehicle speed sensor, air flow sensor, the engine start pilot relay, the pulse generator that is used for automatic transmission, vehicle-wheel speed sensor, manifold absolute pressure sensor (MAP sensor), the performance of the rotation sensor of jetting pump and antenna, loudspeaker, the trouble shooting of wiper or the like.
For the purpose of illustration and description, provided the above-mentioned explanation of the preferred embodiment of the present invention.It is not mean be limit or limit the invention to disclosed definite form, and, can make multiple modification and variant according to above-mentioned instruction, perhaps because practice of the present invention and need make and revising and variant.Scope of the present invention is limited by claims and equivalent thereof.
Although only explained the structure that is used for measuring voltage in a preferred embodiment of the invention.It only for example understands relevant essential part of the present invention, therefore, can comprise other structure that adopts known technology that frequency, resistance, electric current or the like are measured and indicated.
By foregoing as seen, the portable electric testing equipment of introducing according to the embodiment of the invention Advantage is: be input to the voltage input block to apply the electricity corresponding to test voltage in test voltage During voltage level, it is identified as measuring holding state and is indicated like this, the user by can easily distinguish Do not measure holding state.
Another advantage is, can light selectively a plurality of lamps according to tested voltage, to allow the user light Change places and intuitively differentiate tested voltage.
Claims (6)
1. portable electric testing equipment, this device comprises:
Probe;
Earthing device, it is used to contact the earth terminal of measurand;
The voltage input block, it is used to receive the voltage that applies from described probe;
Controller, its test voltage that is used for having the level of defined is applied to described voltage input block, and output control signal, this control signal is used for: indication ground connection when the voltage level from described voltage input block input is lower than zero level, indication measurement holding state when described voltage level is in the test voltage level, and when described voltage level is higher than the reference voltage of regulation, indicate the voltage level that is detected; And
Display device, it is used for realizing indication according to the described control signal from described controller.
2. device as claimed in claim 1, wherein, described display device comprises the segmentation indicating member.
3. device as claimed in claim 1, wherein, described display device comprises a plurality of light-emitting components, each described light-emitting component is illuminated according to the scope of detection voltage.
4. device as claimed in claim 1, wherein, described display device comprises low-voltage warning light-emitting component, this light-emitting component is used for: be illuminated when detecting the voltage of the reference voltage that is lower than described regulation.
5. device as claimed in claim 1, it further comprises the probe extension fixture, this extension fixture have can connect/dismountable coupling unit, prolong cable and be connected to the auxiliary probe of described prolongation cable.
6. device as claimed in claim 1, it further comprises illuminating lamp, this illuminating lamp is used for being thrown light in the place that is positioned at described probe pointing direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020030085905 | 2003-11-29 | ||
| KR1020030085905A KR100541422B1 (en) | 2003-11-29 | 2003-11-29 | A portable equipment for testing electric device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1886666A true CN1886666A (en) | 2006-12-27 |
Family
ID=34632044
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004800351869A Pending CN1886666A (en) | 2003-11-29 | 2004-11-26 | Portable electric testing equipment |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1721175A4 (en) |
| JP (1) | JP2007512527A (en) |
| KR (1) | KR100541422B1 (en) |
| CN (1) | CN1886666A (en) |
| WO (1) | WO2005052604A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635016A (en) * | 2015-02-07 | 2015-05-20 | 周玉翔 | Portable voltage measurement instrument |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080053189A1 (en) | 2006-08-31 | 2008-03-06 | Christopher Bell | Active wheel speed sensor tester |
| KR100823299B1 (en) * | 2006-09-12 | 2008-04-18 | 한국산업안전공단 | A measuring instrument |
| CN106353379A (en) * | 2016-09-30 | 2017-01-25 | 温州百岸汽车零部件有限公司 | On-line tester of handheld wide-domain oxygen sensor |
| CN114994516B (en) * | 2022-08-03 | 2022-10-11 | 深圳市速德瑞科技有限公司 | Portable waterproof circuit pulse signal detection device |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3743939A (en) * | 1972-05-01 | 1973-07-03 | Weston Instruments Inc | Multimeter battery and display function test apparatus |
| US4228394A (en) * | 1978-11-16 | 1980-10-14 | Beckman Instruments, Inc. | Digital ohmmeter with electrical continuity tester |
| US4634971A (en) * | 1982-09-30 | 1987-01-06 | Ford Motor Company | Portable hand-held voltage sensor with manually adjustable reference voltage for comparison with sensed voltage |
| US4804908A (en) * | 1983-10-03 | 1989-02-14 | Mitchell Roger E | Digital meter |
| IT1250240B (en) * | 1991-12-02 | 1995-04-03 | Fiat Auto Spa | DEVICE TO DETECT THE EFFICIENCY OF BATTERIES, PARTICULARLY ON BOARD MOTOR VEHICLES. |
| US5367250A (en) * | 1992-06-11 | 1994-11-22 | Whisenand Jeffery E | Electrical tester with electrical energizable test probe |
| KR100221131B1 (en) * | 1997-03-19 | 1999-09-15 | 전주범 | Connection test apparatus for fuse, a/v jack, element |
| US6140811A (en) * | 1997-04-29 | 2000-10-31 | Agilent Technologies | Hand-held measurement device combining two logic level indicators |
| US6087841A (en) * | 1997-10-01 | 2000-07-11 | International Business Machines Corporation | Contact test circuit |
| US6043640A (en) * | 1997-10-29 | 2000-03-28 | Fluke Corporation | Multimeter with current sensor |
| KR100307009B1 (en) * | 1998-02-18 | 2001-11-30 | 원영종 | Digital multi-tester |
| US6417681B1 (en) * | 1998-05-14 | 2002-07-09 | International Business Machines Corporation | Enhanced probe device for use in high density applications |
| KR20000008050A (en) * | 1998-07-09 | 2000-02-07 | 윤종용 | Current and voltage measuring equipment |
| KR100352598B1 (en) * | 1998-12-09 | 2002-11-18 | 주식회사 포스코 | Apparatus for automatical controlling input of digital mult imeter |
| USD442101S1 (en) * | 2000-05-17 | 2001-05-15 | Spx Corporation | Digital automobile tester |
| KR200277298Y1 (en) * | 2002-03-12 | 2002-06-01 | 김일석 | An wiring tester having electrod of plier type |
| KR200331103Y1 (en) * | 2003-06-14 | 2003-10-22 | 김정희 | Led tester |
-
2003
- 2003-11-29 KR KR1020030085905A patent/KR100541422B1/en not_active IP Right Cessation
-
2004
- 2004-11-26 CN CNA2004800351869A patent/CN1886666A/en active Pending
- 2004-11-26 JP JP2006541043A patent/JP2007512527A/en active Pending
- 2004-11-26 WO PCT/KR2004/003087 patent/WO2005052604A1/en active Application Filing
- 2004-11-26 EP EP04808234A patent/EP1721175A4/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635016A (en) * | 2015-02-07 | 2015-05-20 | 周玉翔 | Portable voltage measurement instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100541422B1 (en) | 2006-01-11 |
| JP2007512527A (en) | 2007-05-17 |
| EP1721175A1 (en) | 2006-11-15 |
| WO2005052604A1 (en) | 2005-06-09 |
| EP1721175A4 (en) | 2009-04-15 |
| KR20050052071A (en) | 2005-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5359290A (en) | Method and apparatus using a pair of test circuits having LED indicators for testing engine sensors and ignition modules in vehicles | |
| US5394093A (en) | Method and apparatus for testing vehicle engine sensors | |
| US6477478B1 (en) | Method and apparatus for automotive and other testing | |
| US7640795B2 (en) | Apparatus and method for starter RPM detection | |
| US10060981B2 (en) | Diagnostic circuit test device | |
| US5572143A (en) | Circuit testing device | |
| EP1390766B1 (en) | 14/42-volt automotive circuit tester | |
| US9046564B1 (en) | Circuit testing device | |
| GB2354335A (en) | Automotive testing | |
| CN101763114B (en) | Device for testing electric interfaces of vehicles | |
| CN1886666A (en) | Portable electric testing equipment | |
| AU708289B2 (en) | Method and apparatus for throttle position sensor testing | |
| CN106019193B (en) | Integrated point inspection device of voltage-withstand-voltage and grounding impedance tester | |
| CN111751757A (en) | Fault detection circuit and method for vehicle-mounted indicator lamp | |
| US5479101A (en) | Ignition coil tester for testing a vehicle engine ignition coil | |
| CN110441677A (en) | The relay tester automatically configured | |
| US20070290673A1 (en) | Portable Electric Testing Equipment | |
| US6321593B1 (en) | Electronic fuel pump, sender and pressure transducer tester | |
| KR200344983Y1 (en) | A portable equipment for testing electric device | |
| CN202614823U (en) | Multifunctional electroprobe | |
| US20060061367A1 (en) | Test light/circuit tester | |
| CN219608057U (en) | Motormeter check out test set | |
| CN212932907U (en) | Fault detection circuit of vehicle-mounted indicator lamp | |
| AU2009230878B2 (en) | Engine electrical pulse and voltage probe | |
| KR200410934Y1 (en) | Short testing and voltage checking system of automobile fuse |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |