CN204538793U - A kind of nuclear radiation formula dust flow sensor power supply circuits - Google Patents
A kind of nuclear radiation formula dust flow sensor power supply circuits Download PDFInfo
- Publication number
- CN204538793U CN204538793U CN201520279597.8U CN201520279597U CN204538793U CN 204538793 U CN204538793 U CN 204538793U CN 201520279597 U CN201520279597 U CN 201520279597U CN 204538793 U CN204538793 U CN 204538793U
- Authority
- CN
- China
- Prior art keywords
- resistance
- lithium battery
- triode
- amplifier
- wireless charging
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of nuclear radiation formula dust flow sensor power supply circuits, comprise lithium battery, the charging end of lithium battery is connected with voltage stabilizing circuit, and the input of voltage stabilizing circuit is parallel with wireless charging circuit and heat energy battery, and the discharge end of lithium battery is connected with charge/discharge control circuit.The utility model can improve the deficiencies in the prior art, decreases electric quantity consumption, improves the reliability of nuclear radiation formula dust flow sensor.
Description
Technical field
The utility model relates to radioactivity survey technical field, especially a kind of nuclear radiation formula dust flow sensor power supply circuits.
Background technology
Nuclear radiation mass flowmenter is made up of nuclear radiation formula density detector and flow sensor, and nuclear radiation formula density detector is arranged at dust passage outside, calculates the density of dust by detecting the gamma-rays attenuation degree penetrating dust passage; Flow sensor is arranged at dust passage inside, and utilize microwave magnetic field to measure dust flowing velocity, the cross-sectional area in conjunction with dust passage measures dust flow.Utilize the density of dust and dust flow can calculate the quality of dust, realize the real-time monitoring of dust emission quality and flow.
Because flow sensor is arranged on dust passage inside, repair and maintenance is inconvenient, therefore need to use lithium battery to power for a long time, but, common power supply circuits electric quantity consumption is very fast, comparatively large to the loss of lithium battery, electric quantity consumption also can cause lithium battery power shortage faster, and transducer cannot normally be worked.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of nuclear radiation formula dust flow sensor power supply circuits, can solve the deficiencies in the prior art, decrease electric quantity consumption, improve the reliability of nuclear radiation formula dust flow sensor.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of nuclear radiation formula dust flow sensor power supply circuits, comprise lithium battery, the charging end of lithium battery is connected with voltage stabilizing circuit, and the input of voltage stabilizing circuit is parallel with wireless charging circuit and heat energy battery, and the discharge end of lithium battery is connected with charge/discharge control circuit, wireless charging circuit comprises step-down transformer, the primary side of step-down transformer is provided with the first switch, the secondary side of step-down transformer is connected with the bridge rectifier be made up of the first diode, the second diode, the 3rd diode and the 4th diode, and output and the heat energy battery of bridge rectifier are connected in parallel, voltage stabilizing circuit comprises the first resistance be connected on wireless charging circuit positive pole, filter capacitor is connected with between first resistance and wireless charging circuit negative pole, first resistance is also connected with the collector electrode of the first triode, the collector electrode of the first triode is connected to wireless charging circuit negative pole by the second resistance and voltage stabilizing didoe, the base stage of the first triode is connected between the second resistance and voltage stabilizing didoe, the emitter of the first triode is connected to the collector electrode of the second triode by filter inductance, the base stage of the second triode is connected with the base stage of the first triode, the emitter of the second triode is connected with wireless charging circuit negative pole by the 3rd resistance, charge/discharge control circuit comprises the 4th resistance being connected to lithium battery discharge end positive pole, 4th resistance is connected to the positive input of the first amplifier, the reverse input end of the first amplifier is connected to reference level by the 5th resistance, second switch is parallel with between the output of lithium battery discharge end positive pole and the first amplifier, the output of the first amplifier is connected to the positive input of the second amplifier by the 6th resistance, the reverse input end of the second amplifier is connected to lithium battery discharge end negative pole by the 7th resistance, negative coefficient thermistors is connected with between the reverse input end of the second amplifier and output.
The beneficial effect adopting technique scheme to bring is: the utility model uses the two-wire parallel way of wireless charging and heat energy battery at supply side, the heat energy in heat energy battery dust adsorption is utilized to power at ordinary times, when heat energy electricity shortage, by closed first switch activated wireless charging circuit, can charge to lithium battery.Voltage stabilizing circuit carries out filtering by two filter circuits be made up of filter capacitor and the first resistance and filter inductance and the 3rd resistance to the charging voltage of lithium battery.Two triodes be connected in series limit charging current, avoid current charge to the damage of lithium battery.First amplifier is by detecting lithium battery voltage atdischarge end, when the voltage of lithium battery discharge end is lower than reference voltage, first amplifier output disconnects, make transducer break-off, when dust flow measured by needs, closed second switch, power supply circuits can be connected, transducer is resumed work, and this just greatly can save the electricity in lithium battery, can extend the service time of dump energy in lithium battery.Second switch can select the automatic cut-off switch of time delay, also needs the operation manually disconnected after can avoiding each energising like this.Second amplifier and negative coefficient thermistors proportion of composing computing circuit, negative coefficient thermistors is along with dust variations in temperature, and resistance also changes accordingly, makes when dust temperature is higher, the output electricity of the second amplifier increases, and automatically reduces when dust temperature is lower.Which achieves the function along with dust temperature automatic adjustment electric quantity consumption.The utility model is supplied power with double circuit by design, improves the reliability of sensor power, then by the automatic monitoring to lithium battery voltage and dust temperature, decreases the effective consumption of electricity.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model embodiment.
In figure: 1, lithium battery; 2, heat energy battery; T1, step-down transformer; S1, the first switch; S2, second switch; D1, the first diode; D2, the second diode; D3, the 3rd diode; D4, the 4th diode; ZD, voltage stabilizing didoe; R1, the first resistance; R2, the second resistance; R3, the 3rd resistance; R4, the 4th resistance; R5, the 5th resistance; R6, the 6th resistance; R7, the first resistance; RL, negative coefficient thermistors, C1, filter capacitor; L1, filter capacitor; Q1, the first triode; Q2, the second triode; A1, the first amplifier, A2, the second amplifier; Vcc, reference level.
Embodiment
With reference to Fig. 1, the utility model embodiment comprises lithium battery 1, and the charging end of lithium battery 1 is connected with voltage stabilizing circuit, and the input of voltage stabilizing circuit is parallel with wireless charging circuit and heat energy battery 2, and the discharge end of lithium battery 1 is connected with charge/discharge control circuit, wireless charging circuit comprises step-down transformer T1, the primary side of step-down transformer T1 is provided with the first switch S 1, the secondary side of step-down transformer T1 is connected with the bridge rectifier be made up of the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, and output and the heat energy battery 2 of bridge rectifier are connected in parallel, voltage stabilizing circuit comprises the first resistance R1 be connected on wireless charging circuit positive pole, filter capacitor C1 is connected with between first resistance R1 and wireless charging circuit negative pole, first resistance R1 is also connected with the collector electrode of the first triode Q1, the collector electrode of the first triode Q1 is connected to wireless charging circuit negative pole by the second resistance R2 and voltage stabilizing didoe ZD, the base stage of the first triode Q1 is connected between the second resistance R2 and voltage stabilizing didoe ZD, the emitter of the first triode Q1 is connected to the collector electrode of the second triode Q2 by filter inductance L1, the base stage of the second triode Q2 is connected with the base stage of the first triode Q1, the emitter of the second triode Q2 is connected with wireless charging circuit negative pole by the 3rd resistance R3, charge/discharge control circuit comprises the 4th resistance R4 being connected to lithium battery 1 discharge end positive pole, 4th resistance R4 is connected to the positive input of the first amplifier A1, the reverse input end of the first amplifier A1 is connected to reference level Vcc by the 5th resistance R5, second switch S2 is parallel with between lithium battery 1 discharge end positive pole and the output of the first amplifier A1, the output of the first amplifier A1 is connected to the positive input of the second amplifier A2 by the 6th resistance R6, the reverse input end of the second amplifier A2 is connected to lithium battery 1 discharge end negative pole by the 7th resistance R7, negative coefficient thermistors RL is connected with between the reverse input end of the second amplifier A2 and output.
Wherein, the first resistance R1 is 10k Ω, and the second resistance R2 is 3k Ω, and the 3rd resistance R3 is 5k Ω, and the 4th resistance R4 is 2k Ω, and the 5th resistance R5 is 2k Ω.6th resistance R6 is 2k Ω, and the 7th resistance R7 is 2k Ω.First electric capacity C1 is 70 μ F, and the first inductance L 1 is 10 μ H.Reference level Vcc is 11V.The change in resistance scope of thermistor RL is 10k Ω ~ 100k Ω.
Operation principle is: the utility model uses the two-wire parallel way of wireless charging and heat energy battery at supply side, the heat energy in heat energy battery 2 dust adsorption is utilized to power at ordinary times, when heat energy electricity shortage, start wireless charging circuit by closed first switch S 1, can charge to lithium battery 1.Voltage stabilizing circuit carries out filtering by two filter circuits be made up of filter capacitor C1 and the first resistance R1 and filter inductance L1 and the 3rd resistance R3 to the charging voltage of lithium battery 1.Two triodes be connected in series limit charging current, avoid current charge to the damage of lithium battery 1.First amplifier A1 is by detecting lithium battery 1 voltage atdischarge end, when the voltage of lithium battery 1 discharge end is lower than reference voltage, first amplifier A1 output disconnects, make transducer break-off, when dust flow measured by needs, closed second switch S2, power supply circuits can be connected, transducer is resumed work, and this just greatly can save the electricity in lithium battery, can extend the service time of dump energy in lithium battery 1.Second switch S2 can select the automatic cut-off switch of time delay, also needs the operation manually disconnected after can avoiding each energising like this.Second amplifier A2 and negative coefficient thermistors RL proportion of composing computing circuit, negative coefficient thermistors RL is along with dust variations in temperature, and resistance also changes accordingly, makes when dust temperature is higher, the output electricity of the second amplifier A2 increases, and automatically reduces when dust temperature is lower.Which achieves the function along with dust temperature automatic adjustment electric quantity consumption.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. nuclear radiation formula dust flow sensor power supply circuits, it is characterized in that: comprise lithium battery (1), the charging end of lithium battery (1) is connected with voltage stabilizing circuit, the input of voltage stabilizing circuit is parallel with wireless charging circuit and heat energy battery (2), and the discharge end of lithium battery (1) is connected with charge/discharge control circuit, wireless charging circuit comprises step-down transformer (T1), the primary side of step-down transformer (T1) is provided with the first switch (S1), the secondary side of step-down transformer (T1) is connected with the bridge rectifier be made up of the first diode (D1), the second diode (D2), the 3rd diode (D3) and the 4th diode (D4), and the output of bridge rectifier and heat energy battery (2) are connected in parallel, voltage stabilizing circuit comprises the first resistance (R1) be connected on wireless charging circuit positive pole, filter capacitor (C1) is connected with between first resistance (R1) and wireless charging circuit negative pole, first resistance (R1) is also connected with the collector electrode of the first triode (Q1), the collector electrode of the first triode (Q1) is connected to wireless charging circuit negative pole by the second resistance (R2) and voltage stabilizing didoe (ZD), the base stage of the first triode (Q1) is connected between the second resistance (R2) and voltage stabilizing didoe (ZD), the emitter of the first triode (Q1) is connected to the collector electrode of the second triode (Q2) by filter inductance (L1), the base stage of the second triode (Q2) is connected with the base stage of the first triode (Q1), the emitter of the second triode (Q2) is connected with wireless charging circuit negative pole by the 3rd resistance (R3), charge/discharge control circuit comprises the 4th resistance (R4) being connected to lithium battery (1) discharge end positive pole, 4th resistance (R4) is connected to the positive input of the first amplifier (A1), the reverse input end of the first amplifier (A1) is connected to reference level (Vcc) by the 5th resistance (R5), second switch (S2) is parallel with between the output of lithium battery (1) discharge end positive pole and the first amplifier (A1), the output of the first amplifier (A1) is connected to the positive input of the second amplifier (A2) by the 6th resistance (R6), the reverse input end of the second amplifier (A2) is connected to lithium battery (1) discharge end negative pole by the 7th resistance (R7), negative coefficient thermistors (RL) is connected with between the reverse input end of the second amplifier (A2) and output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279597.8U CN204538793U (en) | 2015-05-04 | 2015-05-04 | A kind of nuclear radiation formula dust flow sensor power supply circuits |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520279597.8U CN204538793U (en) | 2015-05-04 | 2015-05-04 | A kind of nuclear radiation formula dust flow sensor power supply circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204538793U true CN204538793U (en) | 2015-08-05 |
Family
ID=53752751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520279597.8U Expired - Fee Related CN204538793U (en) | 2015-05-04 | 2015-05-04 | A kind of nuclear radiation formula dust flow sensor power supply circuits |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204538793U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371192A (en) * | 2020-03-24 | 2020-07-03 | 山东大学 | Method and system for matching robot wireless charging power and protecting open circuit |
-
2015
- 2015-05-04 CN CN201520279597.8U patent/CN204538793U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111371192A (en) * | 2020-03-24 | 2020-07-03 | 山东大学 | Method and system for matching robot wireless charging power and protecting open circuit |
| CN111371192B (en) * | 2020-03-24 | 2022-06-10 | 山东大学 | Method and system for matching robot wireless charging power and protecting open circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105207305A (en) | Fault indicator monitoring terminal based on solar charging technology | |
| CN204012676U (en) | A kind of battery detecting and protective circuit | |
| CN204538793U (en) | A kind of nuclear radiation formula dust flow sensor power supply circuits | |
| CN202772858U (en) | Soyabean milk machine with power cut memory circuit | |
| CN203759564U (en) | Double closed-loop temperature control circuit | |
| CN106357101A (en) | Active discharge circuit for filter capacitor of electric automobile controller | |
| CN203521560U (en) | Preheating circuit for lithium battery | |
| CN204085726U (en) | A kind of temperature sensing circuit structure | |
| CN204028032U (en) | A kind of inner container of electric water heater corrosion detection circuitry | |
| CN202735489U (en) | Parallel thermistor flow-equalizing structure used in large-power electric core test equipment | |
| CN202648900U (en) | Leakage detection circuit of heating groove | |
| CN204423199U (en) | A kind of multipurpose electronic temperature detection gauge tap | |
| CN205909941U (en) | Low -temperature alarm ware based on triode temperature characteristic | |
| CN204988548U (en) | A low pick -up current wireless temperature measuring device for cubical switchboard | |
| CN205160107U (en) | Control circuit of adapter | |
| CN205048970U (en) | Plumbous furnace accretion that can avoid false liquid level appearing constructs | |
| CN204759226U (en) | Temperature -control circuit and electric welding | |
| CN204536951U (en) | A kind of electricity warm fan Intelligent heating circuit | |
| CN204439171U (en) | The liquid level reminding device of monitoring transformer oil liquid level | |
| CN203341534U (en) | Soybean milk machine with outage memory circuit | |
| CN204131096U (en) | A kind of constant-current circuit based on metal-oxide-semiconductor | |
| CN103856098B (en) | A kind of pulsed electricity getting device of line-failure indicator and method | |
| CN204696767U (en) | A kind of solar charging controller | |
| CN204203808U (en) | A kind of temperature control system for industrial furnace | |
| CN104853511A (en) | Gate driving type low-power temperature measuring system based on precision reverse current source |
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 |
Granted publication date: 20150805 Termination date: 20170504 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |