CN209131979U - A kind of rail control engine gas response valve time and plume temperature measuring device - Google Patents
A kind of rail control engine gas response valve time and plume temperature measuring device Download PDFInfo
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- CN209131979U CN209131979U CN201822050140.6U CN201822050140U CN209131979U CN 209131979 U CN209131979 U CN 209131979U CN 201822050140 U CN201822050140 U CN 201822050140U CN 209131979 U CN209131979 U CN 209131979U
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Abstract
The utility model provides a kind of rail control engine gas response valve time and plume temperature measuring device, for synchro measure gas valve opening and closing response time and plume temperature, it has the feature that, it include: plume test department, with chamber, the nitrogen cylinder being connect with chamber, the jet pipe being connect with chamber, gas valve is set on jet pipe, the jet pipe shell being fixed at outside the nozzle hole of jet pipe, the laser of jet pipe shell side is set, the fibre optical sensor of jet pipe shell the same side is set with laser and the laser signal receivers of the jet pipe shell other side being correspondingly arranged with laser are set；Photoelectric conversion part has the spectrometer connecting with fibre optical sensor and the cabinet connecting with laser and laser signal receivers；And data store analysis portion, have the capture card connecting with cabinet and the computer connecting with capture card and spectrometer.
Description
Technical field
The utility model belongs to metrology and measurement field, and in particular to a kind of rail control engine gas response valve time and plumage
Flow temperature measuring device.
Background technique
In rail control dynamical system, gas generator generates high-temperature fuel gas, passes through multiple gas valves and thrust control dress
The attitude control that switches tracks to realize aircraft is set, and gas valve opening and closing response time and plume temperature are its important parameters.Combustion gas at present
The valve opening and closing response time is typically based on the parameter measurements such as pressure sensor, thrust pickup analysis and determines, the response of these sensors
Time is suitable with the solenoid valve response time, leads to not the Accurate Determining gas valve response time and can not to carry out more valve multi-parameters same
Pacing amount；Plume temperature is typically based on the measurement of the contact type measurements means such as thermocouple, the use of thermocouple to plume flow field have compared with
Big interference, and it cannot be adapted to fast-changing plume flow field variation, it can not accurately measure plume temperature.These pressure sensings
The use of device, thrust pickup and thermocouple also needs to be transformed combustion gas valve arrangement, very inconvenient.
Utility model content
The utility model is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of rail control engine gas
Response valve time and plume temperature measuring device.
The utility model provides a kind of rail control engine gas response valve time and plume temperature measuring device, is used for
Synchro measure gas valve opens and closes response time and plume temperature, has the feature that, comprising: plume test department has and is used for
The cryogenic high pressure gas for reacting needs for providing air-flow for carrying out air-flow reaction to obtain the chamber of expanded gas flow, connect with chamber
The nitrogen cylinder of stream, is arranged on jet pipe for controlling nozzle switch the jet pipe for spraying expanded gas flow connecting with chamber
The jet pipe shell being fixed at outside the nozzle hole of jet pipe, believing for issuing laser for jet pipe shell side is arranged in gas valve
Number laser, with laser be arranged in jet pipe shell the same side for acquire feather flow radiation spectrum fibre optical sensor and
The laser signal receivers of the jet pipe shell other side being correspondingly arranged with laser are set；Photoelectric conversion part, has and optical fiber
Sensor connection for measure feather flow radiation spectrum and by feather flow radiation spectrum be converted to the first electric signal spectrometer and
The cabinet being connect with laser and laser signal receivers；And data store analysis portion, have the capture card connecting with cabinet
And the computer calculated for data storage being connect with capture card and spectrometer, wherein the expanded gas flow that jet pipe ejects
Jet-impingement region be plume area, laser issue laser signal by plume area decaying after obtain laser attenuation signal,
Laser signal receivers for receiving laser attenuation signal, be provided in cabinet the power supply for powering that connect with laser with
And what is connect with laser signal receivers is used to receive laser attenuation signal and laser attenuation signal is converted to the second electric signal
Photoelectric converter.
In a kind of rail control engine gas response valve time provided by the utility model and plume temperature measuring device,
It can also have the following features: wherein, jet pipe, gas valve, jet pipe shell, laser, fibre optical sensor and laser signal
The quantity of receiver is six, a jet pipe, a gas valve, a jet pipe shell, a laser, a Fibre Optical Sensor
Device and laser signal receivers form a measuring cylinder section, chamber connect altogether there are six measuring cylinder section.
In a kind of rail control engine gas response valve time provided by the utility model and plume temperature measuring device,
It can also have the following features: wherein, the operating voltage of laser is 3V, power 1.5W.
In a kind of rail control engine gas response valve time provided by the utility model and plume temperature measuring device,
It can also have the following features: wherein, the measurement wave band of spectrometer is 200-1100nm.
In a kind of rail control engine gas response valve time provided by the utility model and plume temperature measuring device,
It can also have the following features: wherein, the quantity of spectrometer is six, and each spectrometer is 200- by a wave band
The first optical fiber of 1100nm is connect with fibre optical sensor, and power supply is connect with laser by conducting wire, and the quantity of conducting wire is the six roots of sensation, is swashed
Optical signal receiver is connect with photoelectric converter by the second optical fiber, and the quantity of the second optical fiber is the six roots of sensation, and capture card and cabinet are logical
Data line connection is crossed, the quantity of data line is that the six roots of sensation, capture card and spectrometer are connect with computer by data line, computer
Quantity is seven, and six computers carry out storage analysis as the feather flow radiation spectrum to six spectrometers to obtain plume temperature
Temperature data handle computer, another computer is used as to be responded for collecting laser attenuation signal and opening and closing to gas valve
The response time data that time is calculated handles computer.
In a kind of rail control engine gas response valve time provided by the utility model and plume temperature measuring device,
It can also have the following features: wherein, gas valve controls opening and closing by external control signal, and external control signal includes opening
Dynamic control signal and closing control signal, capture card is external with external control signal, so that external control signal is transmitted to sound
Data processing computer between seasonable, response time data processing computer, which receives, to be started after external control signal to carry out data to adopt
Collection.
The action and effect of utility model
A kind of rail control engine gas response valve time according to involved in the utility model and plume temperature measurement dress
It sets, because carrying out analysis by the electric signal being converted into the laser attenuation signal behind laser light plume area can be obtained combustion gas
The response valve time, so without being contacted when measurement, and measurement accuracy is high, high sensitivity；Because by feather flow radiation
Plume temperature can be obtained in spectrum analysis, so without contact when measurement plume temperature, and can preferably adapt to plume
The variation in flow field is to obtain more accurate plume temperature；Because without being transformed to the structure of gas valve, institute in order to
Installation has good applicability.Therefore, a kind of rail control engine gas response valve time of the utility model and plume temperature
It is simple to spend measuring device structure, simple installation, can in the non-contact case it is highly sensitive to the gas valve response time and
Plume temperature synchronizes real-time measurement.
Detailed description of the invention
Fig. 1 is that one of the embodiments of the present invention rail control engine gas response valve time and plume temperature are surveyed
Measure the schematic device of device；
Fig. 2 is the structural schematic diagram of the measuring cylinder section in the embodiments of the present invention；
Fig. 3 is the flow diagram of the measurement method in the embodiments of the present invention；
Fig. 4 is the signal graph of the external control signal and laser attenuation signal in the embodiments of the present invention.
Specific embodiment
In order to be easy to understand technological means of the utility model and effect, with reference to embodiments and attached drawing
The utility model is specifically addressed.
Embodiment:
Fig. 1 is that one of the embodiments of the present invention rail control engine gas response valve time and plume temperature are surveyed
Measure the schematic device of device.
As shown in Figure 1, a kind of rail control engine gas response valve time and plume temperature measuring device of the present embodiment
100, for synchro measure gas valve opening and closing response time and plume temperature, including plume test department 10, photoelectric conversion part 20 with
And data store analysis portion 30.
Plume test department 10 has for carrying out air-flow reaction and obtains the chamber 11 of expanded gas flow, connect with chamber 11
For provide air-flow reaction need cryogenic high pressure air-flow nitrogen cylinder 12, connect with chamber 11 be used for spray expanded gas flow
Jet pipe 13, be arranged on jet pipe 13 for control nozzle switch gas valve 14, be fixed at outside the nozzle hole of jet pipe 13
Jet pipe shell 15, be arranged in 15 side of jet pipe shell for issue laser signal laser 16, with laser 16 be arranged
It is another in jet pipe shell 15 in the fibre optical sensor 17 for being used to acquire feather flow radiation spectrum of 15 the same side of jet pipe shell and setting
The laser signal receivers 18 of side being correspondingly arranged with laser 16.
The operating voltage of laser 16 is 3V, power 1.5W.
The jet-impingement region for the expanded gas flow that jet pipe 13 ejects is plume area, the laser signal warp that laser 16 issues
When crossing plume area, because of the presence of drop and finely ground particles in air-flow, is decayed after scattering or deviation occurs, obtained after decaying
Laser attenuation signal, laser signal receivers 18 are for receiving laser attenuation signal.
Fig. 2 is the structural schematic diagram of the measuring cylinder section in the embodiments of the present invention.
As shown in Fig. 2, 16, one, the laser light of jet pipe shell 15, one of gas valve 14, one of jet pipe 13, one
Fiber sensor 17 and a laser signal receivers 18 form a measuring cylinder section,
Jet pipe 13, gas valve 14, jet pipe shell 15, laser 16, fibre optical sensor 17 and laser signal receivers 18
Quantity be six, chamber 11 altogether connection there are six measuring cylinder section.
Photoelectric conversion part 20 has what is connect with fibre optical sensor 17 to be used to measure feather flow radiation spectrum and by feather flow radiation
The cabinet 22 that spectrum is converted to the spectrometer 21 of the first electric signal and connect with laser 16 and laser signal receivers 18, will
Feather flow radiation spectrum is converted to the first electric signal to be convenient for data transmission.
The measurement wave band of spectrometer 21 is 200-1100nm.
It is provided with the power supply connecting with laser 16 for powering in cabinet 22 and connects with laser signal receivers 18
What is connect is used to receive laser attenuation signal and laser attenuation signal is converted to the photoelectric converter of the second electric signal, and laser is declined
Cut signal is converted to the second electric signal to be convenient for data transmission.
Data store analysis portion 30, have the capture card 31 connecting with cabinet 22 and connect with capture card 31 and spectrometer 21
The computer 32 calculated for data storage connect.
The quantity of spectrometer 21 is six, the first optical fiber 40 that each spectrometer 21 is 200-1100nm by a wave band
It is connect with fibre optical sensor 17,
Power supply is connect with laser 16 by conducting wire 50, and the quantity of conducting wire 50 is the six roots of sensation,
Laser signal receivers 18 are connect with photoelectric converter by the second optical fiber 60, and the quantity of the second optical fiber 60 is six
Root,
Capture card 31 is connect with cabinet 22 by data line, and the quantity of data line is the six roots of sensation,
Capture card 31 and spectrometer 21 are connect with computer 32 by data line, and the quantity of computer 32 is seven, six
Computer 32 carries out storage analysis as the feather flow radiation spectrum to six spectrometers 21 to obtain the temperature data of plume temperature
Computer is handled, another computer 32 is as collecting laser attenuation signal and carrying out to the gas valve opening and closing response time
The response time data of calculating handles computer.
Gas valve 14 controls opening and closing by external control signal, and external control signal includes starting control signal and closes
Signal is controlled, capture card 31 and external control signal are external, so that external control signal is transmitted to response time data processing
Computer, response time data processing computer start to carry out data acquisition after receiving external control signal.
It is provided with the power supply connecting with laser 16 for powering in cabinet 22 and connects with laser signal receivers 18
What is connect is used to receive laser attenuation signal and laser attenuation signal is converted to the photoelectric converter of the second electric signal.
Fig. 3 is the flow diagram of the measurement method in the embodiments of the present invention.
As shown in figure 3, a kind of of the present embodiment is measured using rail control engine gas response valve time and plume temperature
The method that device 100 measures gas valve opening and closing response time and plume temperature, comprising the following steps: step 1, by opening
Dynamic control signal opens gas valve 14, and capture card 31 receives and starting control signal is transmitted to response after starting control signal
Time data processing computer, response time data processing computer start data collection after receiving starting control signal and remember
The sending moment of record starting control signal is t01, while laser signal receivers 18 are acquired laser attenuation signal, then
It is transmitted to response time data processing computer after laser attenuation signal is converted to the second electric signal by photoelectric converter, is rung
Data processing computer starts to keep to be recorded as combustion gas at the time of signal stabilization after laser attenuation signal is generated fluctuation between seasonable
The start-up time t of valve 141, then according to formula tIt opens=t1-t01To obtain the starting response time t of gas valveIt opens；
Step 2, feather flow radiation spectrum is acquired by fibre optical sensor 17, feather flow radiation spectrum is converted to by spectrometer 21
First electric signal is simultaneously transmitted to temperature data processing computer, and temperature data handles computer and carries out gray scale to feather flow radiation spectrum
Analysis, and plume temperature is obtained after carrying out least square method fitting to feather flow radiation spectrum based on Planck law；
Step 3, by closing control signal come closing gas valve 14, capture card 31 will close after receiving closing control signal
It closes control signal and is transmitted to response time data processing computer, response time data processing computer receives closing control letter
Start data collection after number and records the sending moment of closing control signal as t02, while laser signal receivers 18 decline to laser
Cut signal is acquired, and is then converted to laser attenuation signal by photoelectric converter when being transmitted to response after the second electric signal
Between data processing computer, response time data handle computer by laser attenuation signal start generate fluctuation at the time of be denoted as combustion
The close moment t of air valve 142, will start to keep after laser attenuation signal fluctuation to be denoted as the complete of gas valve 14 at the time of signal stabilization
Contract fully moment t3, according to formula tIt closes=t2-t02With formula tIt completely closes=t3-t02To obtain the closing response time of gas valve 14
tIt closesResponse time t is completely closed with gas valve 14It completely closes,
Wherein, in step 2, the calculation formula of plume temperature is as follows:
In formula (1), EλFor feather flow radiation intensity, ε (T) is gas-flow radiation rate, and λ is wavelength, and T is the thermodynamics temperature of air-flow
Degree, c1For the first radiation constant, c2For the second radiation constant.
Fig. 4 is the signal graph of the external control signal and laser attenuation signal in the embodiments of the present invention.
As shown in figure 4, the principle of the calculating gas valve response time of the present embodiment is as follows: starting controls signal from t01Moment
It issues, gas valve 14 is opened, and jet pipe 13, which is gradually opened and starts jet-stream wind, at this time forms plume area, and what laser 16 issued swashs
Transmitted light intensity changes when optical signal passes through plume area, so that the laser attenuation signal that laser signal receivers 18 receive is opened
Begin to generate fluctuation, as arrival t1When the moment, gas valve 14 is fully opened so that the stable foundation in the flow field in plume area, swashs at this time
Light decay cut signal starts to keep stablizing, then according to formula tIt opens=t1-t01The starting response time t of gas valve can be obtainedIt opens, close
Control signal is closed from t02Moment issues, as arrival t2When the moment, gas valve 14 starts to be closed, and jet pipe 13 starts to gradually decrease
Jet-stream wind, variation takes place for the flow field in plume area so that laser attenuation signal starts to generate fluctuation, at this time according to public affairs
Formula tIt closes=t2-t02The closing response time t of gas valve 14 can be obtainedIt closes, as arrival t3At the moment, gas valve 14 closes completely at this time
It closes, plume area disappears, and laser attenuation signal starts to keep stablizing, at this time according to formula tIt completely closes=t3-t02Gas valve can be obtained
14 completely close response time t3。
The action and effect of embodiment
A kind of rail control engine gas response valve time and plume temperature measuring device according to involved in the present embodiment,
Because carrying out analysis by the electric signal being converted into the laser attenuation signal behind laser light plume area can be obtained gas valve
Response time, so without being contacted when measurement, and measurement accuracy is high, high sensitivity；Because by feather flow radiation light
Plume temperature can be obtained in spectrum analysis, so without contact when measurement plume temperature, and can preferably adapt to plume stream
The variation of field is to obtain more accurate plume temperature；Because without being transformed to the structure of gas valve, institute is in order to pacifying
Dress has good applicability.Therefore, a kind of rail control engine gas response valve time of the present embodiment and plume temperature are surveyed
It is simple to measure apparatus structure, simple installation, and can be highly sensitive in the non-contact case using the measurement method of the device
Real-time measurement is synchronized to gas valve response time and plume temperature.
Above embodiment is the preferred case of the utility model, is not intended to limit the protection scope of the utility model.
Claims (6)
1. a kind of rail control engine gas response valve time and plume temperature measuring device are opened and closed for synchro measure gas valve
Response time and plume temperature characterized by comprising
Plume test department has for carrying out air-flow reaction and obtains the chamber of expanded gas flow, is used for what the chamber was connect
The nitrogen cylinder of the air-flow cryogenic high pressure air-flow that reaction needs is provided, connect with the chamber be used to spray the expansion gas
The jet pipe of stream is arranged on the jet pipe for controlling the gas valve of the nozzle switch, being fixed at the spray of the jet pipe
Jet pipe shell outside nozzle, the laser for issuing laser signal that jet pipe shell side is set, with the laser
Device is arranged in the fibre optical sensor for being used to acquire feather flow radiation spectrum of jet pipe shell the same side and is arranged in the spray
The laser signal receivers of the tube shell other side being correspondingly arranged with the laser；
Photoelectric conversion part has what is connect with the fibre optical sensor to be used to measure the feather flow radiation spectrum and by the plume
The machine that radiation spectrum is converted to the spectrometer of the first electric signal and connect with the laser and the laser signal receivers
Case；And
Data store analysis portion, have the capture card connecting with the cabinet and connect with the capture card and the spectrometer
For data storage calculate computer,
Wherein, the jet-impingement region for the expanded gas flow that the jet pipe ejects is plume area,
The laser signal that the laser issues obtains laser attenuation signal, the laser after plume area decaying
Signal receiver is used to receive the laser attenuation signal,
Be provided in the cabinet connect with the laser for power supply power supply and with the laser signal receivers
Connection is used to receive the laser attenuation signal and the laser attenuation signal is converted to the photoelectric conversion of the second electric signal
Device.
2. a kind of rail control engine gas response valve time according to claim 1 and plume temperature measuring device,
It is characterized in that:
Wherein, the jet pipe, the gas valve, the jet pipe shell, the laser, the fibre optical sensor and it is described swash
The quantity of optical signal receiver is six,
One jet pipe, a gas valve, a jet pipe shell, a laser, the optical fiber
Sensor and the laser signal receivers form a measuring cylinder section,
The chamber is connected altogether there are six the measuring cylinder section.
3. a kind of rail control engine gas response valve time according to claim 1 and plume temperature measuring device,
It is characterized in that:
Wherein, the operating voltage of the laser is 3V, power 1.5W.
4. a kind of rail control engine gas response valve time according to claim 1 and plume temperature measuring device,
It is characterized in that:
Wherein, the measurement wave band of the spectrometer is 200-1100nm.
5. a kind of rail control engine gas response valve time according to claim 1 and plume temperature measuring device,
It is characterized in that:
Wherein, the quantity of the spectrometer is six, and each spectrometer passes through first that a wave band is 200-1100nm
Optical fiber is connect with the fibre optical sensor,
The power supply is connect with the laser by conducting wire, and the quantity of the conducting wire is the six roots of sensation,
The laser signal receivers are connect with the photoelectric converter by the second optical fiber, and the quantity of second optical fiber is six
Root,
The capture card is connect with the cabinet by data line, and the quantity of the data line is the six roots of sensation,
The capture card and the spectrometer are connect with the computer by data line, and the quantity of the computer is seven,
Six computers carry out storage analysis as the feather flow radiation spectrum to six spectrometers to obtain the plumage
The temperature data for flowing temperature handles computer, and another computer is used as collecting the laser attenuation signal and right
The response time data processing computer that the gas valve opening and closing response time is calculated.
6. a kind of rail control engine gas response valve time according to claim 1 and plume temperature measuring device,
It is characterized in that:
Wherein, the gas valve controls opening and closing by external control signal, and the external control signal includes starting control letter
Number and closing control signal,
The capture card and the external control signal are external, so that the external control signal is transmitted to the response time
Data processing computer, the response time data processing computer start to carry out data after receiving the external control signal
Acquisition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822050140.6U CN209131979U (en) | 2018-12-07 | 2018-12-07 | A kind of rail control engine gas response valve time and plume temperature measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822050140.6U CN209131979U (en) | 2018-12-07 | 2018-12-07 | A kind of rail control engine gas response valve time and plume temperature measuring device |
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| CN209131979U true CN209131979U (en) | 2019-07-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443786A (en) * | 2018-12-07 | 2019-03-08 | 上海理工大学 | Rail control engine gas response valve time and plume temperature measuring device and method |
-
2018
- 2018-12-07 CN CN201822050140.6U patent/CN209131979U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443786A (en) * | 2018-12-07 | 2019-03-08 | 上海理工大学 | Rail control engine gas response valve time and plume temperature measuring device and method |
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