Summary of the invention
It is an object of the invention to provide that a kind of volume is little, lightweight, detection speed is fast, accuracy of detection is high Multifunctional high pressure measuring instrument.
The technical solution used in the present invention is:
Multifunctional high pressure measuring instrument, containing computer and Multifunctional high pressure main circuit board, this measuring instrument also includes USB analog data collection card, USB digital data capture card, electrion seizure circuit board, high-voltage line scanning circuit plate, programme-controlled signal source, instrument 30 core test jack CT1 and instrument 25 core test jack CT3, described programme-controlled signal source is divided into 0-500V program control signal source circuit and 0-10KV program control signal source circuit
Described USB digital data capture card receives the coding control signal from described computer export;
Described USB digital data capture card decoding output is measured line scanning logic and is driven signal to Multifunctional high pressure main circuit board, and this measurement line scanning logic drives signal to control the output of Multifunctional high pressure main circuit board and measures the signal of telecommunication;
This measurement signal of telecommunication is delivered on test product by instrument 30 core test jack CT1, and the measurement result of test product sends Multifunctional high pressure main circuit board back to by instrument 30 core test jack CT1;
Measurement result is amplified through Multifunctional high pressure main circuit board, deliver to USB analog data collection card after overload-resistant, anti-interference process, USB analog data collection card delivers to computer after being converted by measurement result A/D, and 60 measurement results are displayed immediately on admittance test menu by this computer by calculating after software control, differentiation.
Described USB digital data capture card receives the coding control signal from described computer export;
Described USB digital data capture card decoding output is measured line scanning logic and is driven signal to high-voltage line scanning circuit plate;
Described high-voltage line scanning circuit plate goes 0-10KV program control signal source circuit through the control voltage of D/A conversion output 0-10V, described 0-10KV program control signal source circuit inversion produces 0-10KV extra-high voltage and measures signal power source, extra-high voltage is measured signal power source and sends back to high-voltage line scanning circuit plate again;
Described high-voltage line scanning circuit plate drives signal to control through measuring line scanning logic, extra-high voltage being measured signal power source and delivers on test product by instrument 25 core test jack CT3, the measurement result of test product is sent electrion back to by instrument 25 core test jack CT3 and is caught circuit board;
Measurement result catches circuit board seizure through electrion, Multifunctional high pressure main circuit board is delivered in spectrum transformation, Multifunctional high pressure main circuit board is overload-resistant by measurement result, deliver to USB analog data collection card after anti-interference process, USB analog data collection card sends computer back to after being converted by measurement result A/D, and 36 loop measurement results are displayed immediately on voltage-withstand test menu by this computer by calculating after software control, differentiation.
Described USB digital data capture card receives the coding control signal from described computer export;
Described USB digital data capture card decoding output is measured line scanning logic and is driven signal to high-voltage line scanning circuit plate;
Described high-voltage line scanning circuit plate goes 0-500V program control signal source circuit through the control voltage of D/A conversion output 0-10V, described 0-500V program control signal source circuit inversion produces 0-500V high-tension measurement signal power source, and high-tension measurement signal power source measures the signal of telecommunication through the output of Multifunctional high pressure main circuit board;
This measurement signal of telecommunication is delivered on test product by instrument 30 core test jack CT1, and the measurement result of test product sends Multifunctional high pressure main circuit board back to by instrument 30 core test jack CT1;
Measurement result is amplified through Multifunctional high pressure main circuit board, deliver to USB analog data collection card after overload-resistant, anti-interference process, USB analog data collection card delivers to computer after being converted by measurement result A/D, and 60 measurement results are displayed immediately on Insulation test menu by this computer by calculating after software control, differentiation.
Beneficial effects of the present invention: this measuring instrument is used for measuring auto electric wire harness, adapter and vehicle lamp assembly wiring conducting, pressure and insulation situation, and volume is little, lightweight, speed is fast, accuracy of detection is high in detection, measures easy to operate.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in Figure 1, the Multifunctional high pressure measuring instrument of the present invention, containing computer 1 and Multifunctional high pressure main circuit board 4, this measuring instrument also includes USB analog data collection card 3, USB digital data capture card 2, electrion seizure circuit board 6, high-voltage line scanning circuit plate 5, programme-controlled signal source, instrument 30 core test jack CT19 and instrument 25 core test jack CT310, programme-controlled signal source is divided into 0-500V program control signal source circuit 7 and 0-10KV program control signal source circuit 8
USB digital data capture card 2 receives the coding control signal from described computer 1 output;The decoding output of USB digital data capture card 2 is measured line scanning logic and is driven signal to Multifunctional high pressure main circuit board 4, and this measurement line scanning logic drives signal to control Multifunctional high pressure main circuit board 4 output and measures the signal of telecommunication;This measurement signal of telecommunication is delivered on test product by instrument 30 core test jack CT19, and the measurement result of test product sends Multifunctional high pressure main circuit board 4 back to by instrument 30 core test jack CT19;Measurement result amplifies through Multifunctional high pressure main circuit board 4, deliver to USB analog data collection card 3 after overload-resistant, anti-interference process, USB analog data collection card 3 delivers to computer 1 after being converted by measurement result A/D, and 60 measurement results are displayed immediately on admittance test menu by this computer 1 by calculating after software control, differentiation.
USB digital data capture card 2 receives the coding control signal from computer 1 output;USB digital data gathers 2 card decoding outputs and measures line scanning logic and drive signal to high-voltage line scanning circuit plate 5;High-voltage line scanning circuit plate 5 goes 0-10KV program control signal source circuit 8 through the control voltage of D/A conversion output 0-10V, 0-10KV program control signal source circuit 8 inversion produces 0-10KV extra-high voltage and measures signal power source, extra-high voltage is measured signal power source and sends back to high-voltage line scanning circuit plate 5 again;High-voltage line scanning circuit plate 5 drives signal to control through measuring line scanning logic, extra-high voltage being measured signal power source and delivers on test product by instrument 25 core test jack CT310, the measurement result of test product is sent electrion back to by instrument 25 core test jack CT310 and is caught circuit board 6;Through electrion seizure, circuit board 6 catches measurement result, Multifunctional high pressure main circuit board 4 is delivered in spectrum transformation, Multifunctional high pressure main circuit board 4 is overload-resistant by measurement result, deliver to USB analog data collection card 3 after anti-interference process, USB analog data collection card 3 sends computer 1 back to after being converted by measurement result A/D, and 36 loop measurement results are displayed immediately on voltage-withstand test menu by this computer 1 by calculating after software control, differentiation.
USB digital data capture card 2 receives the coding control signal from described computer 1 output;The decoding output of USB digital data capture card 2 is measured line scanning logic and is driven signal to high-voltage line scanning circuit plate 5;High-voltage line scanning circuit plate 5 goes 0-500V program control signal source circuit 7 through the control voltage of D/A conversion output 0-10V, 0-500V program control signal source circuit 7 inversion produces 0-500V high-tension measurement signal power source 7, and high-tension measurement signal power source 7 measures the signal of telecommunication through Multifunctional high pressure main circuit board 4 output;This measurement signal of telecommunication is delivered on test product by instrument 30 core test jack CT19, and the measurement result of test product sends Multifunctional high pressure main circuit board 4 back to by instrument 30 core test jack CT19;Measurement result amplifies through Multifunctional high pressure main circuit board 4, deliver to USB analog data collection card 3 after overload-resistant, anti-interference process, USB analog data collection card 3 delivers to computer 1 after being converted by measurement result A/D, and 60 measurement results are displayed immediately on Insulation test menu by this computer 1 by calculating after software control, differentiation.
Multifunctional high pressure measuring instrument is used for measuring auto electric wire harness, adapter and vehicle lamp assembly wiring conducting, pressure and insulation situation:
Measure 60 auto electric wire harness, adapter and vehicle lamp assembly wiring admittance whether correctly, whether have open circuit, short circuit or rosin joint;Measure 36 loop auto electric wire harness, adapter and vehicle lamp assembly pressure whether qualified;Whether up to standard measure auto electric wire harness, adapter and vehicle lamp assembly insulation;Have self contained data base, test data real time record, long-term preservation, at any time inquiry and printing.
Fig. 1, shown in 2 and 6, measure 60 auto electric wire harness, adapter and vehicle lamp assembly wiring admittance whether correctly, whether have open circuit, short circuit or rosin joint, its main composition includes computer 1, USB analog data collection card 3, USB digital data capture card 2, Multifunctional high pressure main circuit board 4 and Survey Software.This composition can realize following test function:
(1), any distribution form in 15 loops (30 point) scope can be tested, can arbitrarily select test loop or test point.With test fixture, test loop is together in series, it is possible to expand hundreds of point to.
(2), there is " manually sampling " " automatic sampling " and " sampling record " set-up function.
(3), there is automatic detection function.During detection, resistance " decision content " arbitrarily can set within the scope of 0.1~3.1 kilo-ohm;" detection number of times " arbitrarily can set in 1~99 scope;" interval time " (interval time between the detection of Zhi Mei bis-tunnel) arbitrarily can set within the scope of 2~99 seconds.
(4), there is hit detection function.Measurand is rocked on test limit, limit, and continuous detecting can determine whether that circuit is with or without hit phenomenon within a certain period of time.
(5), there is loose contact detection function.By judging that the size of detection resistance value in measure loop judges in loop the phenomenon of whether hundred loose contacts.
(6), testing result automatically analyzes and discrimination function.Detection is every-individual loop as tested correct or having the phenomenons such as loop is obstructed, hit, loose contact, instrument all can provide test result: acceptance or rejection.If any measure underproof situation, except have this loop show defective except, instrument is simultaneously emitted by sound, visual alarm.
(7), there is a brake.When point is surveyed, with special point survey pen can position, arbitrfary point, arbitrfary point survey time road, for quickly finding trouble location.
Measure 60 auto electric wire harness, adapter and vehicle lamp assembly wiring admittance, the steps include:
First measurement parameter is set on computer admittance test menu: include " product respectively claims and lot number ", " operator's job number ", " test sampling ", " decision content ", " detection number of times ", " detection mode " etc..After parameter setting is over, click on-screen menu " beginning " and connect button, first computer 1 will export coding control signal to USB digital data capture card 2, measured line scanning logic by the decoding output of this card and drive signal, control Multifunctional high pressure main circuit 4 plate output electric measurement signal, deliver on test product again through instrument 30 core test jack CT19.Measurement result sends Multifunctional high pressure main circuit board 4 back to yet by instrument 30 core test jack CT19, USB analog data collection card 2 is sent after amplified, overload-resistant, anti-interference process, send computer 1 after A/D conversion, software control 60 measurement results to be displayed immediately on admittance test menu through computer calculating, differentiation.Clicking " preservation " button computer on menu and be stored in data base by each testing setup parameter and test result, click " exiting " button on menu, program returns main menu.
Fig. 1, shown in 3 and 6, measuring 36 loop auto electric wire harness, adapter and vehicle lamp assembly pressure whether qualified, its main composition includes computer 1, USB analog data collection card 3, USB digital data capture card 2, Multifunctional high pressure main circuit board 4, high-voltage line scanning circuit plate 5, electrion seizure circuit board 6,0-10KV program control signal source circuit 8 and Survey Software.This composition can realize following test function:
, the Hi-pot test voltage range of choice be: DC800V~10KV (relative to test gap range for 0.1~1mm, namely 10~100).Pressurization step-length is divided into 5 grades, is respectively as follows:
1 grade of 35V
2 grades of 70V
3 grades of 105V
4 grades of 140V
5 grades of 175V
The pressurization more big Hi-pot test voltage of gear rises more fast;The pressurization more little Hi-pot test voltage accuracy of gear is more high, and the pressure voltage of test is more accurate.
(2), Hi-pot test voltage pressuring method can be divided into again: automatically and manually.
(3), set the scope 0.1~3mA of leakage current.The leakage current of test is: 0.001~3mA.
(4), measurement sensitivity is significantly high.When test loop leakage current reaches setting value or test voltage reaches setting value, loop will stop pressurization immediately;When loop Discharge Phenomena in test, only needing an electric spark, instrument is also by magnitude of voltage when stopping pressurization immediately and test out electric discharge.
(5), pressure retention time set point is: 2~99 seconds.
Measure 36 loop auto electric wire harness, adapter and vehicle lamp assembly pressure, the steps include: first on computer 1 voltage-withstand test menu, to arrange measurement parameter: include " product respectively claims and lot number ", " operator's job number ", " restriction voltage ", " pressurization stepping ", " leakage current ", " dwell time " and " detection mode " etc..After parameter setting is over, click on-screen menu " beginning " and connect button, first computer 1 will export coding control signal to USB digital data capture card 2, by this card decoding output measurement line scanning logic driving signal to high-voltage line scanning circuit plate 5, this plate goes 0-10KV program control signal source circuit 8 through the control voltage of D/A conversion output 0-10V on the one hand, produced 0-10000V extra-high voltage by this circuit inversion and measure signal power source, send back to high-voltage line scanning circuit plate 5 again, controlled then through line scanning logic by this plate, extra-high voltage is measured signal power source delivered on test product by instrument 25 core test jack CT310.Measurement result is sent electrion back to by 25 core test jack CT310 and is caught circuit board 6, captured, spectrum transformation send Multifunctional high pressure main circuit board to send USB analog data collection card 3 then through after overload-resistant, anti-interference process, send computer after A/D conversion, software control 36 loop measurement results to be displayed immediately on voltage-withstand test menu through computer calculating, differentiation.Clicking " preservation " button computer on menu and be stored in data base by each testing setup parameter and test result, click " exiting " button on menu, program returns main menu.
Fig. 1, shown in 4 and 6, whether up to standard measuring 60 auto electric wire harness, adapter and vehicle lamp assembly wiring insulation, its main composition includes: computer 1, USB analog data collection card 3, USB digital data capture card 2, Multifunctional high pressure main circuit board 4, high-voltage line scanning circuit plate 5,0-500V programme-controlled signal source 7 and Survey Software.
Measure 60 auto electric wire harness, adapter and vehicle lamp assembly wiring insulation, the steps include: first on computer admittance test menu, to arrange measurement parameter: include " product respectively claims and lot number ", " operator's job number ", " decision content ", 0-10KV programme-controlled signal source " detection mode " etc..After parameter setting is over, click on-screen menu " beginning " and connect button, first computer 1 will export coding control signal to USB digital data capture card 2, by this card decoding output measurement line scanning logic driving signal to high-voltage line scanning circuit plate 5, this plate goes 0-500V program control signal source circuit 7 through the control voltage of D/A conversion output 0-10V, 0-500V high-tension measurement signal power source is produced by this circuit inversion, measure the signal of telecommunication through the output of DZK-2CY-01 Multifunctional high pressure main circuit board 4, deliver on test product again through instrument 30 core test jack CT19.Measurement result sends Multifunctional high pressure main circuit board 4 back to yet by instrument 30 core test jack CT19, USB analog data collection card 3 is sent after amplified, overload-resistant, anti-interference process, computer 1 is sent after A/D conversion, controlled to calculate through computer, differentiate by software, 60 measurement results are displayed immediately on Insulation test menu.Clicking " preservation " button computer 1 on menu and be stored in data base by each testing setup parameter and test result, click " exiting " button on menu, program returns main menu;
Fig. 5, data real time record, long-term preservation, at any time inquiry print schematic diagram.Test data real time record, long-term preservation, at any time inquiry and printing step are: click main menu and inquire about print button, program enters inquiry and prints second-level menu, inquiry prints point two kinds of modes and all inquires about printing and select inquiry to print, all inquiry printing inquires about print button with " all " in this project of click, data village, often used in village names content in project is just all shown on screen, for inquiry or printing.Selecting inquiry to print and then need input from date, the deadline in the project of inquiry printing, then click on selection inquiry and print, the data content in the selected date will be shown on screen, for inquiring about or printing.