CN204392202U - RC signal adapter - Google Patents
RC signal adapter Download PDFInfo
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- CN204392202U CN204392202U CN201520102375.9U CN201520102375U CN204392202U CN 204392202 U CN204392202 U CN 204392202U CN 201520102375 U CN201520102375 U CN 201520102375U CN 204392202 U CN204392202 U CN 204392202U
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- signal
- plug connector
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- emitting diode
- resistance
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Abstract
The utility model provides a kind of band electric leakage instruction RC signal adapter, light-emitting diode D1 in adapter is in parallel with light-emitting diode protective resistance R1, light-emitting diode D1 negative electrode side connects the heart yearn l point of DC power supply plug connector SSMB to node d, light-emitting diode D1 positive extreme direction node c connects charging resistor R2 one end, a point and storage capacitor C1 one end of inputting plug connector SMA heart yearn while of charging resistor R2 other end node b with signal are connected, SMA is ground wire grounded for signal input plug connector, crystal diode D2 is in parallel with crystal diode protective resistance R3, crystal diode D2 positive extreme direction e node is connected with the storage capacitor C1 other end, crystal diode D2 negative electrode side is connected with signal output connector BNC heart yearn and load resistance R4 one end g point to node f simultaneously, the ground wire of signal output connector BNC and load resistance R4 other end h point ground connection.RC signal adapter utilizes paster type light emitting type to detect the state of insulation of probe, can locate electric leakage probe fast and accurately.
Description
Technical field
The utility model relates to a kind of RC signal adapter with electric leakage instruction, is applied to the shock wave in the experiment of accurate detonation physics or impacts the measurement of the film flying signal time of advent.
Background technology
In explosion and shock process, the time interval that detonation wave speed, shock velocity and free surface velocity are measured is the signal as obtaining.Utilize the energy storage of RC circuit and the principle of electric discharge, by shock wave or impact film flying, electric probe and RC pulse shaping circuit composition discharge loop, produce electric impulse signal, by reading the flight time that electric impulse signal can obtain shock wave or impact the film flying interval time of advent.
In accurate detonation physics experiment, often need the time interval of simultaneously measuring a large amount of detonation wave speed, shock velocity and free surface velocity measurements to arrive the characteristic point time.For in the accurate detonation physics experiment of as many as up to a hundred characteristic points, then need up to a hundred RC pulse shaping circuits and up to a hundred impedance adapters to work simultaneously, and ensure the quality of output signals on each road.In actual applications, RC pulse shaping circuit adopts system integrating mode, and signal output cable needs to be docked with measuring instrument by impedance adapter, connects up numerous and diverse, in disorder.Fixing link is too much, very easily causes obscuring of probe respective signal.Length, the probe insulation property of signal output cable all will affect the quality of probe signals.Therefore, improve probe signals quality, check that probe insulation status ensures to test the key factor of carrying out smoothly fast.
Summary of the invention
In order to signal distortion rate can be reduced to greatest extent in accurate detonation physics experiment, reduce signal stube cable to greatest extent, find out leakage circuit rapidly, be convenient to the measurement to single or multiple characteristic point flight time, the utility model provides a kind of RC signal adapter with electric leakage instruction 50 Ω output matching.
Described RC signal adapter adopts one-piece design, single RC signal adapter circuit adopts independently impulse circuit, need the quantity of the characteristic point measured RC signal adapter can be installed experimentally, the built-in build-out resistor of RC signal adapter, can directly dock with measuring instrument signal input part.
RC signal adapter of the present utility model, is characterized in: described adapter comprises signal output connector BNC, pcb board exports heart yearn, pcb board fixing hole, pcb board input heart yearn, signal input plug connector SMA, metal shell body, DC power supply input plug connector SSMB, PCB printed circuit board; Annexation between above device is: signal input plug connector SMA inputs heart yearn with pcb board and is connected; Pcb board exports heart yearn and is connected with signal output connector BNC; The ground wire of PCB printed circuit board is connected with metal shell body by pcb board fixing hole, inputs plug connector SMA altogether with signal output connector BNC, signal; DC power supply input plug connector SSMB is PCB printed circuit board input DC power;
Light-emitting diode D
1, light-emitting diode protective resistance R
1, charging resistor R
2, storage capacitor C
1, crystal diode D
2, crystal diode protective resistance R
3, load resistance R
4, pcb board installing hole M1, M2; Light-emitting diode D
1with light-emitting diode protective resistance R
1parallel connection, light-emitting diode D
1negative electrode side connects the heart yearn l point of DC power supply plug connector SSMB to node d, light-emitting diode D
1positive extreme direction node c meets charging resistor R
2one end, charging resistor R
2a point and storage capacitor C1 one end of inputting plug connector SMA heart yearn while of other end node b with signal are connected, and SMA is ground wire grounded for signal input plug connector, crystal diode D
2with crystal diode protective resistance R
3parallel connection, crystal diode D
2positive extreme direction e node is connected with the storage capacitor C1 other end, crystal diode D
2negative electrode side to node f simultaneously with signal output connector BNC heart yearn and load resistance R
4g point in one end connects, the ground wire of signal output connector BNC and load resistance R
4other end h point ground connection; Signal inputs plug connector SMA, signal output connector BNC, DC power supply plug connector SSMB connect common ground wire----shell body k.
Described light-emitting diode protective resistance R
1resistance be 200 K Ω, charging resistor R
2resistance be 1 M Ω, crystal diode protective resistance R
3resistance be 30 K Ω, load resistance R
4resistance be 50 Ω, the capacitance of storage capacitor C1 is 510 pF; Light-emitting diode D
1the leakage current of 10 μ A ~ 200 μ A can be detected, light-emitting diode D
1, crystal diode D
2, storage capacitor C1, resistance R
1, resistance R
2, resistance R
3, resistance R
4all adopt SMD device.
Signal input plug connector SMA in described RC signal adapter circuit adopts SMA-KHD type socket, signal output connector BNC employing BNC-50JY type socket, power line plug connector SSMB to adopt SSMB-JWHD type socket.
The principle that RC signal adapter adopts is: metal shell is cube, and signal input plug connector and signal output connector are positioned at the two ends of cube structure, and power supply input plug connector is positioned at the side of cube structure.In holder housing, being provided with fixed installation hole, for the installation of PCB, having fixing hole at the two ends of holder housing, for installing the plug connector of connection signal cable and register instrument.In circuit in PCB, two ends have wire extraction to be directly connected with the plug connector on shell body, and it is RC signal adapter circuit supply that power supply input plug connector is connected to DC power supply by power line, and the DC power supply adopted is negative supply.
This RC signal adapter adopts one-piece design, can according to measurement parameter number install, each RC signal adapter can in the direct convenient installation of register instrument end, can reach that wiring is succinct, signal distortion rate is little.Each circuit possesses electric leakage Presentation Function, utilizes paster type light emitting type to detect the state of insulation of probe, and it is numerous and diverse, in disorder that the accurate detonation physics measured at multi-characteristic points especially solves wiring in testing.The problem that fixing link is too much, can apply in the measurement of the detonation wave speed of multi-measuring point, shock velocity and free surface velocity.
Accompanying drawing explanation
The structural representation of Fig. 1 RC signal adapter;
The circuit theory diagrams of Fig. 2 RC signal adapter;
Fig. 3 RC signal adapter is pulse schematic diagram under 50 Ohmic resistance effects;
In figure: 1. signal output connector BNC 2 .PCB plate exports heart yearn 3 .PCB plate fixing hole 4 .PCB plate input heart yearn 5. signal input plug connector SMA 6. metal shell body 7. DC power supply input plug connector SSMB 8 .PCB printed circuit board.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
In Fig. 1, Fig. 2, the electric route signal output connector BNC1 of RC signal adapter, pcb board export heart yearn 2, pcb board fixing hole 3, pcb board input heart yearn 4, signal input plug connector SMA5, metal shell body 6, DC power supply input plug connector SSMB7, PCB printed circuit board 8; Light-emitting diode D
1, light-emitting diode protective resistance R
1, charging resistor R
2, storage capacitor C
1, crystal diode D
2, crystal diode protective resistance R
3, load resistance R
4, pcb board installing hole M1, M2.
Annexation between each device is: light-emitting diode D1 is in parallel with light-emitting diode protective resistance R1, light-emitting diode D1 negative electrode side connects the heart yearn l point of DC power supply plug connector SSMB to node d, light-emitting diode D1 positive extreme direction node c connects charging resistor R2 one end, a point and storage capacitor C1 one end of inputting plug connector SMA heart yearn while of charging resistor R2 other end node b with signal are connected, SMA is ground wire grounded for signal input plug connector, crystal diode D2 is in parallel with crystal diode protective resistance R3, crystal diode D2 positive extreme direction e node is connected with the storage capacitor C1 other end, crystal diode D2 negative electrode side is connected with signal output connector BNC heart yearn and load resistance R4 one end g point to node f simultaneously, the ground wire of signal output connector BNC and load resistance R4 other end h point ground connection, signal input plug connector SMA, signal output connector BNC, DC power supply plug connector SSMB meet common ground wire shell body k.(as shown in Figure 2)
Be according to the feature of each socket in described RC signal adapter circuit: signal input plug connector SMA adopts SMA-KHD type socket, signal output connector BNC adopts BNC-50JY type socket, power line plug connector SSMB adopts SSMB-JWHD type socket.
According to the annexation of device each in example 1, after RC signal adapter is directly connected with register instrument (oscilloscope), under the effect of 50 Ohmic resistances, to the impulse waveform obtained, as shown in Figure 3.
According to the annexation of device each in example 1, after being directly connected with register instrument (oscilloscope) by RC signal adapter, under the effect of wire, during the short circuit of RC signal adapter, after light-emitting diode D1 conducting, send red light; In real work, if there is this kind of situation, this measurement circuit short circuit can be concluded.
Claims (3)
1.RC signal adapter, is characterized in that: described adapter comprises signal output connector BNC(1), pcb board exports heart yearn (2), pcb board fixing hole (3), pcb board input heart yearn (4), signal input plug connector SMA(5), metal shell body (6), DC power supply input plug connector SSMB(7), PCB printed circuit board (8); Its annexation is: signal input plug connector SMA(5) input heart yearn (4) with pcb board and be connected; Pcb board exports heart yearn (2) and signal output connector BNC(1) be connected; The ground wire of PCB printed circuit board (8) is connected with metal shell body (6), with signal output connector BNC(1 by pcb board fixing hole (3)), signal inputs plug connector SMA(5) altogether; DC power supply input plug connector SSMB(7) be PCB printed circuit board (8) input DC power; Light-emitting diode D
1, light-emitting diode protective resistance R
1, charging resistor R
2, storage capacitor C
1, crystal diode D
2, crystal diode protective resistance R
3, load resistance R
4, pcb board installing hole M1, M2; Light-emitting diode D
1with light-emitting diode protective resistance R
1parallel connection, light-emitting diode D
1negative electrode side connects the heart yearn l point of DC power supply plug connector SSMB to node d, light-emitting diode D
1positive extreme direction node c meets charging resistor R
2one end, charging resistor R
2a point and storage capacitor C1 one end of inputting plug connector SMA heart yearn while of other end node b with signal are connected, and SMA is ground wire grounded for signal input plug connector, crystal diode D
2with crystal diode protective resistance R
3parallel connection, crystal diode D
2positive extreme direction e node is connected with the storage capacitor C1 other end, crystal diode D
2negative electrode side to node f simultaneously with signal output connector BNC heart yearn and load resistance R
4g point in one end connects, the ground wire of signal output connector BNC and load resistance R
4other end h point ground connection; Signal inputs plug connector SMA, signal output connector BNC, DC power supply plug connector SSMB connect common ground wire----shell body k.
2. RC signal adapter according to claim 1, is characterized in that: described light-emitting diode protective resistance R
1resistance be 200 K Ω, charging resistor R
2resistance be 1 M Ω, crystal diode protective resistance R
3resistance be 30 K Ω, load resistance R
4resistance be 50 Ω, the capacitance of storage capacitor C1 is 510 pF; Light-emitting diode D
1the leakage current of 10 μ A ~ 200 μ A can be detected, light-emitting diode D
1, crystal diode D
2, storage capacitor C1, resistance R
1, R
2, R
3, R
4all adopt SMD device.
3. RC signal adapter according to claim 1, is characterized in that: the signal input plug connector SMA in described RC signal adapter circuit adopts SMA-KHD type socket, signal output connector BNC employing BNC-50JY type socket, power line plug connector SSMB to adopt SSMB-JWHD type socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102375.9U CN204392202U (en) | 2015-02-13 | 2015-02-13 | RC signal adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102375.9U CN204392202U (en) | 2015-02-13 | 2015-02-13 | RC signal adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204392202U true CN204392202U (en) | 2015-06-10 |
Family
ID=53364882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520102375.9U Expired - Fee Related CN204392202U (en) | 2015-02-13 | 2015-02-13 | RC signal adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204392202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660204A (en) * | 2015-02-13 | 2015-05-27 | 中国工程物理研究院流体物理研究所 | Rc signal adaptor |
-
2015
- 2015-02-13 CN CN201520102375.9U patent/CN204392202U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104660204A (en) * | 2015-02-13 | 2015-05-27 | 中国工程物理研究院流体物理研究所 | Rc signal adaptor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20200213 |