CN103338032A - Light-control power source switch of testing system under high-temperature environments - Google Patents
Light-control power source switch of testing system under high-temperature environments Download PDFInfo
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- CN103338032A CN103338032A CN2013103068976A CN201310306897A CN103338032A CN 103338032 A CN103338032 A CN 103338032A CN 2013103068976 A CN2013103068976 A CN 2013103068976A CN 201310306897 A CN201310306897 A CN 201310306897A CN 103338032 A CN103338032 A CN 103338032A
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Abstract
The invention relates to a light-control power source switch of a testing system under high-temperature environments. The switch comprises a photoelectric diode, a filter, an I/V (current-to-voltage) converting and amplifying device, a voltage control switch and a power source, wherein the photoelectric diode is connected with the filter, the filter is connected with the I/V converting and amplifying device, the I/V converting and amplifying device consists of an I/V converter and a logarithm converter and is connected with the voltage control switch, one of two ends of the voltage control switch is connected with the power source, the other end of the voltage control switch is connected with the power source input end of a testing device, and the power source is used for providing a working power source for the testing device. The light-control power source switch has the advantages that the switch is a light-control device which is used for controlling the opening and closing of the power source switch by the photoelectric diode, and is suitable for controlling the automatic opening and closing of the testing device which is not suitable for manual operation occasions; the sunlight interference is avoided in the circuit design, the light wave generated by triggering the light source is absorbed by the photoelectric diode, is amplified by photoelectric conversion and is shaped and filtered, and then the effect of closing the power source switch by the voltage control switch is realized.
Description
Technical field
The invention belongs to the high temperature test technical field, particularly relate to the light-operated mains switch of test macro in a kind of hot environment.
Background technology
In the environment of a lot of high temperature, may be also simultaneously with characteristics such as high pressure, HI high impacts, these special environment have just proposed very high requirement to the performance of testing apparatus.Be not suitable for the occasion of manual operation at these, experiment Once you begin, then do not allow the experimenter to enter in the test environment, this just causes testing apparatus just to send electricity before experiment, and the physical phenomenon that some special occasions adopts experiment to produce triggers testing apparatus.But a lot of experimental situations all must just be sent electricity when device is put into experimental situation, just this has brought unnecessary power loss, if the situation that the experiment waits for too long might occur cutting off the power supply.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide the light-operated mains switch of test macro in a kind of hot environment.
In order to achieve the above object, the light-operated mains switch of test macro comprises in the hot environment provided by the invention: photodiode, filter, I/V conversion and amplifier, voltage cut-out and power supply; Wherein:
Photodiode is electrooptical device, is used for will triggering the light wave that light source produces in test and is converted to electric stream number, and it is connected with filter;
Filter is low-pass filter circuit, is used for the HFS of the current signal of filtering photodiode output, and it is connected with I/V conversion and amplifier;
I/V conversion and amplifier are made up of I/V transducer and logarithmic converter, and it is connected with voltage cut-out, are used for the current signal of filter output is converted to the voltage control signal of voltage cut-out, amplify then;
Voltage cut-out is electric-controlled switch, and an end is connected with power supply in its two ends, and the other end is connected with the power input of testing apparatus, connects or close the working power of testing apparatus under the control of voltage control signal;
Power supply is the working power of testing apparatus; Testing apparatus is the controlled object of this device.
The light-operated mains switch of test macro is that a kind of photodiode of using in hot environment is realized the light controlling device that switch is controlled to mains switch in the hot environment provided by the invention, is applicable to that those are not suitable for the automatic switch control of testing apparatus in the manual operation occasion; Got rid of the interference of daylight in its circuit design, photodiode absorbs and triggers the light wave that light source produces, and carries out shaping filter after opto-electronic conversion is amplified, and reaches the effect of closed mains switch through voltage cut-out.
Description of drawings
Fig. 1 is the structural representation of the light-operated mains switch of test macro in the hot environment provided by the invention.
Embodiment
Be elaborated below in conjunction with the light-operated mains switch of the drawings and specific embodiments to test macro in the hot environment provided by the invention.
As shown in Figure 1, the light-operated mains switch of test macro comprises in the hot environment provided by the invention: photodiode 1, filter 2, I/V conversion and amplifier 3, voltage cut-out 4 and power supply 5; Wherein:
Photodiode 1 is electrooptical device, is used for will triggering the light wave that light source produces in test and is converted to electric stream number; It is connected with filter 2;
I/V conversion and amplifier 3 are made up of I/V transducer and logarithmic converter, and it is connected with voltage cut-out 4, are used for the current signal of filter 2 outputs is converted to the voltage control signal of voltage cut-out 4, amplify then; For reducing dark current, enlarge the range of linearity, therefore photodiode 1 adopts the mode of operation of no-bias, the dynamic range of light radiation illumination intensity signal is up to 6 more than the magnitude, such current signal is not easy to subsequent treatment, therefore need current signal is transformed into the voltage signal that is fit to the custom circuit processing, method commonly used has automatic gain control and logarithmic converter etc., and wherein logarithmic converter is suitable for handling than the great dynamic range signal.
Voltage cut-out 4 is an electric-controlled switch, and an end is connected with power supply 5 in the two ends of its switch, and the other end is connected with the power input of testing apparatus 6, can connect or close the working power of testing apparatus 6 under the control of voltage control signal;
Now the operation principle with the light-operated mains switch of test macro in the hot environment provided by the invention is described below: the light that sends during with firecracker setting-off is as triggering light source, this device is positioned over ground and connects power supply, when behind the firecracker setting-off and the light that sends when reaching the trigger point of photodiode 1, photodiode 1 will carry out opto-electronic conversion to the light signal that the triggering light source sends, convert voltage signal to by the I/V transducer after electric current process filter 2 filtering of its output, adopt logarithmic converter that faint voltage signal is amplified to form control voltage then, to control the input that voltage is input to voltage cut-out 4 then, and in advance the action threshold value of voltage cut-out 4 is arranged, switch closure when controlling voltage greater than this threshold value, to connect the power supply 5 of testing apparatus 6, switch disconnects during less than this threshold value, with the power supply 5 of closing testing apparatus 6, through can effectively reduce the situation of false triggering to the setting of threshold value.
The light-operated mains switch of test macro utilizes optical approach to realize the last electric control of tester in the hot environment in the hot environment provided by the invention, has theoretical foundation, also be feasible in technology, it has solved under bias light disturbs the extraction to light signal effectively, reach the effect of control mains switch, reduced the loss of power supply effectively, and simple to operate, practical, be applicable to that very some are not suitable for the high temperature occasion of manual operation.It should be noted that 1 on photodiode can not produce current signal when unglazed the photograph, voltage cut-out 4 can disconnect, and therefore will adopt the ROM memory, prevents the loss of data of testing apparatus 6.
Claims (1)
1. the light-operated mains switch of test macro in the hot environment, it is characterized in that: described light-operated mains switch comprises: photodiode (1), filter (2), I/V conversion and amplifier (3), voltage cut-out (4) and power supply (5); Wherein:
Photodiode (1) is electrooptical device, is used for will triggering the light wave that light source produces in test and is converted to electric stream number, and it is connected with filter (2);
Filter (2) is low-pass filter circuit, is used for the HFS of the current signal of filtering photodiode (1) output, and it is connected with I/V conversion and amplifier (3);
I/V conversion and amplifier (3) are made up of I/V transducer and logarithmic converter, and it is connected with voltage cut-out (4), are used for the current signal of filter (2) output is converted to the voltage control signal of voltage cut-out (4), amplify then;
Voltage cut-out (4) is electric-controlled switch, and an end is connected with power supply (5) in its two ends, and the other end is connected with the power input of testing apparatus (6), the working power of connecting or closing testing apparatus (6) under the control of voltage control signal;
Power supply (5) is the working power of testing apparatus (6); Testing apparatus (6) is the controlled object of this device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103068976A CN103338032A (en) | 2013-07-22 | 2013-07-22 | Light-control power source switch of testing system under high-temperature environments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103068976A CN103338032A (en) | 2013-07-22 | 2013-07-22 | Light-control power source switch of testing system under high-temperature environments |
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| Publication Number | Publication Date |
|---|---|
| CN103338032A true CN103338032A (en) | 2013-10-02 |
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| CN2013103068976A Pending CN103338032A (en) | 2013-07-22 | 2013-07-22 | Light-control power source switch of testing system under high-temperature environments |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116559521A (en) * | 2023-05-10 | 2023-08-08 | 国网黑龙江省电力有限公司绥化供电公司 | Chamber test device of portable high-voltage electroscope |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030218585A1 (en) * | 2002-05-24 | 2003-11-27 | Tsukasa Hoshi | Light-emitting element drive apparatus |
| CN1712935A (en) * | 2005-07-07 | 2005-12-28 | 上海精密科学仪器有限公司 | Realtime flame monitor |
| CN201152785Y (en) * | 2008-01-16 | 2008-11-19 | 上海神明控制工程有限公司 | Infrared fire detecting probe head |
| CN201964955U (en) * | 2010-12-31 | 2011-09-07 | 上海神明控制工程有限公司 | Ultraviolet flame-detecting probe |
-
2013
- 2013-07-22 CN CN2013103068976A patent/CN103338032A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030218585A1 (en) * | 2002-05-24 | 2003-11-27 | Tsukasa Hoshi | Light-emitting element drive apparatus |
| CN1712935A (en) * | 2005-07-07 | 2005-12-28 | 上海精密科学仪器有限公司 | Realtime flame monitor |
| CN201152785Y (en) * | 2008-01-16 | 2008-11-19 | 上海神明控制工程有限公司 | Infrared fire detecting probe head |
| CN201964955U (en) * | 2010-12-31 | 2011-09-07 | 上海神明控制工程有限公司 | Ultraviolet flame-detecting probe |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116559521A (en) * | 2023-05-10 | 2023-08-08 | 国网黑龙江省电力有限公司绥化供电公司 | Chamber test device of portable high-voltage electroscope |
| CN116559521B (en) * | 2023-05-10 | 2024-03-29 | 国网黑龙江省电力有限公司绥化供电公司 | Chamber test device of portable high-voltage electroscope |
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Application publication date: 20131002 |