CN105093146A - Low-voltage detector tester - Google Patents
Low-voltage detector tester Download PDFInfo
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- CN105093146A CN105093146A CN201410188573.1A CN201410188573A CN105093146A CN 105093146 A CN105093146 A CN 105093146A CN 201410188573 A CN201410188573 A CN 201410188573A CN 105093146 A CN105093146 A CN 105093146A
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Abstract
The invention belongs to the technical field of avionic tests and especially relates to a low-voltage detector tester. The low-voltage detector tester is characterized by comprising twelve test holes, an indicating lamp L1, an indicating lamp L2, a single-pole switch S1, a single-pole switch S2, an ammeter A, and a potentiometer R, wherein the twelve test holes includes a power 1+, a power 1-, a power 2+, a power 2-, an A red, an A black, an R red, an R black, a '1', a '2', a '3', and a '0'. The low-voltage detector tester may detect the operating voltage, detection voltage, and output end current of a low-voltage detector, well verifies a low-voltage detector before the low-voltage detector is installed on a plane, helps to find an installing fault caused by the low-voltage detector, and satisfies a verification requirement before the low-voltage detector is installed on the plane.
Description
Technical field
The invention belongs to avionics experimental technique field, particularly relate to a kind of low voltage detector exerciser.
Background technology
Low voltage detector is the important monitoring equipment of aircraft DC power-supply system, and when aircraft Bus Voltage is lower than detection voltage, low voltage detector output low level, makes alarm indicator ignite, and prompting driver notes.The special tester of current verification room not this component, when component is in general assembly energising or when reprocessing after sale, needs reometer, the manual line of pot, and needs two people to operate simultaneously, waste time and energy, have a strong impact on manufacturing schedule.
The object of invention
The operating voltage that can realize low voltage detector of this exerciser, detects voltage, and every detection such as output end current amount, can complete the verification of the product before installation preferably, and can help the installation fault that investigation causes because of this component.Solve verification demand before the installation of aircraft finished product.
The content of invention
This exerciser is made up of 128 ± 2 Ω noninductive resistances of on-state pilot lamp, power > 7W, pointer Sensitive Current table and one-way switch and correlative measurement prospect hole etc., work-based logic according to component is effectively formed by connecting, the operating voltage range inspection of low voltage detector can be realized, check point voltage checks, and the inspection of output end current amount etc., the verification of the product before installation can be completed preferably, and the installation fault that investigation causes because of this component can be helped.
Low pressure detection test device, comprise by power supply 1+, power supply 1-, power supply 2+, power supply 2-, A is red, A is black, R is red, R is black, " 1 ", " 2 ", " 3 " and " 0 " 12 instrument connections, pilot lamp L1, pilot lamp L2, single-pole switch S1, single-pole switch S2, reometer A and pot R forms.
The positive and negative terminal of wherein power supply 1+ and power supply 1-be connected to respectively 18 ~ 33V adjustable D. C regulated, the positive and negative terminal of power supply 2+ and power supply 2-connect respectively 28V D.C. regulated power supply.Instrument connection " 1 ", " 2 ", " 3 ", " 0 " connect " 1 ", " 2 ", " 3 " in component, " 0 " extension line.
Power supply 1+ is in parallel with one end of single-pole switch S1 and one end of S2.The other end of S1 and one end of L1 and " 1 " and connect, the other end of S2 and L2 one end and " 2 " mutually and connect, the other end of L1 is in parallel with power supply 1-and " 0 ", the other end of L2 and power supply 2-in parallel with " 2 ".Power supply 2+ and A is red and be connected to one end of reometer A.The other end of reometer A is black with A, R is red and one end phase of pot R connecing, the intermediate shaft head end of pot R with " 3 " with R is black is in parallel.
The effect of invention
Succeeding in developing of this exerciser, meets the front verification demand of aircraft finished product installation, the operating voltage range inspection of the low voltage detector that can realize preferably, check point voltage checks, and the inspection of output end current amount etc., both saved man power and material, save man-hour again, improve efficiency.Effectively can also locate the trouble spot of component simultaneously, be conducive to investigating cause this component to burn machine on trouble spot, exerciser volume is little is easy to carry for this, also can be used for outfield and detects.
Accompanying drawing explanation
Accompanying drawing 1 is the inner schematic diagram of exerciser.
Embodiment
This exerciser is mainly used in testing laboratory inside, also can be used for after-sales service and outfield detection.
Pressure detection test device, it is characterized in that, comprise by power supply 1+, power supply 1-, power supply 2+, power supply 2-, A is red, A is black, R is red, R is black, " 1 ", " 2 ", " 3 " and " 0 " 12 instrument connections, pilot lamp L1, pilot lamp L2, single-pole switch S1, single-pole switch S2, reometer A and pot R forms;
The positive and negative terminal of wherein power supply 1+ and power supply 1-be connected to respectively 18 ~ 33V adjustable D. C regulated, the positive and negative terminal of power supply 2+ and power supply 2-connect respectively 28V D.C. regulated power supply; Instrument connection " 1 ", " 2 ", " 3 ", " 0 " connect " 1 ", " 2 ", " 3 " in component, " 0 " extension line;
Power supply 1+ is in parallel with one end of single-pole switch S1 and one end of S2; The other end of S1 and one end of L1 and " 1 " and connect, the other end of S2 and L2 one end and " 2 " mutually and connect, the other end of L1 is in parallel with power supply 1-and " 0 ", the other end of L2 and power supply 2-in parallel with " 2 "; Power supply 2+ and A is red and be connected to one end of reometer A; The other end of reometer A is black with A, R is red and one end phase of pot R connecing, the intermediate shaft head end of pot R with " 3 " with R is black is in parallel.
Be verified as example and be described before verifying room installation below.
(1) operating voltage range inspection
Respectively by " 1 " " 2 " access D.C. regulated power supply, when stabilized voltage supply exports 33V, reometer indicated value is 0; When stabilized voltage supply exports 18V, reometer indicated value is 0.2A;
Slowly be down in 18V process when stabilized voltage supply exports by 33V, reometer indicated value should increase to suddenly from 0 and be not less than 0.2A; Otherwise slowly rise in 33V process when stabilized voltage supply exports by 18V, reometer indicated value should be down to 0 suddenly from being not less than 0.2A.
(2) check point voltage checks
After in parallel with " 2 " to " 1 ", access D.C. regulated power supply, adjustment stabilized voltage supply exports, and its output voltage is declined extremely slowly by 26V, and (rate of change is less than 0.05V/s, writes down the input voltage value detecting box when current value increases suddenly from 0.Its value should be 25V ~ 25.5V.
(3) output end current amount checks
After in parallel with " 2 " to " 1 ", access D.C. regulated power supply, adjustment stabilized voltage supply exports, and make its output voltage be 24 ± 0.5V, now, reometer indicated value should be not less than 0.2A.
Claims (1)
1. low pressure detection test device, it is characterized in that, comprise by power supply 1+, power supply 1-, power supply 2+, power supply 2-, A is red, A is black, R is red, R is black, " 1 ", " 2 ", " 3 " and " 0 " 12 instrument connections, pilot lamp L1, pilot lamp L2, single-pole switch S1, single-pole switch S2, reometer A and pot R forms;
The positive and negative terminal of wherein power supply 1+ and power supply 1-be connected to respectively 18 ~ 33V adjustable D. C regulated, the positive and negative terminal of power supply 2+ and power supply 2-connect respectively 28V D.C. regulated power supply; Instrument connection " 1 ", " 2 ", " 3 ", " 0 " connect " 1 ", " 2 ", " 3 " in component, " 0 " extension line;
Power supply 1+ is in parallel with one end of single-pole switch S1 and one end of S2; The other end of S1 and one end of L1 and " 1 " and connect, the other end of S2 and L2 one end and " 2 " mutually and connect, the other end of L1 is in parallel with power supply 1-and " 0 ", the other end of L2 and power supply 2-in parallel with " 2 "; Power supply 2+ and A is red and be connected to one end of reometer A; The other end of reometer A is black with A, R is red and one end phase of pot R connecing, the intermediate shaft head end of pot R with " 3 " with R is black is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188573.1A CN105093146A (en) | 2014-05-07 | 2014-05-07 | Low-voltage detector tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410188573.1A CN105093146A (en) | 2014-05-07 | 2014-05-07 | Low-voltage detector tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105093146A true CN105093146A (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410188573.1A Pending CN105093146A (en) | 2014-05-07 | 2014-05-07 | Low-voltage detector tester |
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| CN (1) | CN105093146A (en) |
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| CN102830306A (en) * | 2012-08-17 | 2012-12-19 | 常州华威电子有限公司 | Low-voltage short-circuit detection circuit and detection method for aluminum electrolytic capacitor |
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Application publication date: 20151125 |