CN206272572U - The high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used - Google Patents
The high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used Download PDFInfo
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- CN206272572U CN206272572U CN201621285969.9U CN201621285969U CN206272572U CN 206272572 U CN206272572 U CN 206272572U CN 201621285969 U CN201621285969 U CN 201621285969U CN 206272572 U CN206272572 U CN 206272572U
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Abstract
The utility model belongs to nuclear power plant instrument control systems technology field, and in particular to the high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system is used.Purpose is to solve existing nuclear power plant's the type signal processing module Frequent Troubles, influences the problem of reactor core Nuclear measurement system normal work.Characterized in that, it includes difference negative feedback amplifier circuit, isolation amplifier module, reverse negative-feedback circuit and filter circuit, externally fed voltage is ± 15VDC, and output voltage is 0 10V d. c. voltage signals；The output end of difference negative feedback amplifier circuit is connected with the input of isolation amplifier module, the output end of isolation amplifier module is connected with the input of reverse negative-feedback circuit and the input of filter circuit respectively, the output end of filter circuit is connected with the input of difference negative feedback amplifier circuit, and the output end of isolation amplifier module is connected with the input of reverse negative-feedback circuit.The utility model has circuit form simple, low cost, reliability advantage high.
Description
Technical field
The invention belongs to nuclear power plant instrument control systems technology field, and in particular to what a kind of nuclear power station reactor core Nuclear measurement system was used
High performance signal processing module.
Background technology
The BD-IMCH1034 type processing modules used in the factory's reactor core Nuclear measurement system of Qinshan Phase II NPP one are responsible for nuclear power station reactor core
Flux signal (low-level) isolation of Nuclear measurement system neutron detector output is exported after amplifying and gives power station computer system.Transport in power station
Between row more than 20 years, the type signal processing module once broke down for several times, have impact on the normal work of reactor core Nuclear measurement system.In order to
Reactor core Nuclear measurement system is avoided measurement failure occur, it is ensured that stable operation of unit, the factory's skill of center nuclear power operational management Co., Ltd one
Propose on the premise of assurance function is constant, a novel process module to be developed again at art.Processing module newly developed has
The features such as stable performance, high precision, strong antijamming capability, the safety and reliability of reactor core Nuclear measurement system is substantially increased, really
The operation steady in a long-term in power station is protected.
The content of the invention
The purpose of the present invention is existing nuclear power plant's the type signal processing module Frequent Troubles, and influence reactor core Nuclear measurement system is just
A kind of problem for often working, there is provided the high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used.
What the present invention was realized in：
Electricity is amplified in a kind of high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used, including difference negative-feedback
Road, isolation amplifier module, reverse negative-feedback circuit and filter circuit composition, externally fed voltage is ± 15VDC, and output voltage is
0-10V d. c. voltage signals；The output end of difference negative feedback amplifier circuit is connected with the input of isolation amplifier module, isolation fortune
The output end of amplification module is connected with the input of filter circuit and the input of reverse negative-feedback circuit respectively, filter circuit it is defeated
Go out end to be connected with the input of difference negative feedback amplifier circuit；Difference negative feedback amplifier circuit is used to for input signal to carry out 50 times
Amplify；Isolation amplifier circuit is used to be isolated the signal that difference negative feedback amplifier circuit is sent into, the signal input after isolation
To in reverse negative-feedback circuit；Reverse negative-feedback circuit is used to be amplified the signal after isolation；Filter circuit be used for every
± 15VDC power supplys after module conversion are filtered, and ± the 15VDC after treatment is used for being provided for difference negative feedback amplifier circuit
Direct current supply；
Difference negative feedback amplifier circuit as described above, the operational amplifier of the circuit uses accurate operation amplifier
Device, its model is OPA627BP, and the input bias current of the type amplifier is 1pA, and differential input impedance is up to 1013 Ω, temperature drift
0.8 μ V/ DEG C, bias voltage is 0.1mV, amplifier has outside zeroing end, it is possible to use potentiometer eliminates imbalance, it is possible to increase put
The output accuracy of big device；Difference negative feedback amplifier circuit is responsible for exporting electric to isolation amplifier after input signal is accurately amplified into 50 times
Road, multiplication factor is determined by adjusting the position of upper 2 pin of slide-changing resistor device P1；
Difference is put and two diodes D1 and D2 are carried out into reversal connection reality between the pin of differential input end 2 of device OPA627BP and 3 pin
Existing defencive function, the diode model BAS116 that D1 and D2 are used；Difference puts 3 pin and 2 pin inputs point of device OPA627BP
Not Chuan Lian protective resistance R1 and R2, resistance is 4.75k；2 pin bridging resistance R4 and the electric capacity in parallel with 6 pin of amplifier OPA627BP
The resistance of C3, R4 is 237k, and the capacitance of C3 is 0.1uF；Difference to be put and connect slide-changing resistor between 1 pin of device OPA627BP and 5 pin
7 pin that 2 pin of device P1, P1 put device OPA627BP with difference are connected, and it is negative anti-to reach change difference by the position of upper 2 pin of mobile P1
Present the multiplication factor of amplifying circuit.
Isolation amplifier circuit as described above is constituted by core of isolation amplifier AD215BY, the isolation voltage of the type amplifier
Up to 1500VAC, gain is unit gain, and nonlinear precision is zero potentiometer for ± 0.005%, P6；The module is believed input
Number carry out 1:1 isolation and amplifier, prevents interfering between front stage circuit；The connection of isolation amplifier circuit peripheral device is this
AD215BY's is fixedly connected, and the other end of 36 pin connection the electricity R9, R9 of AD215BY is connected to the sliding end 2 of slide rheostat P6
On pin, P6 is slide-changing resistor device, and its 3 pin is connected with the ground terminal of board GND2, and 1 pin of P6 is connected with R8, the other end connection of R8
The resistance of board anode power supply+15V, R9 is 1M, and the resistance of R8 is 100K, and the Standard resistance range of P6 is 0-10K.
Reversely negative-feedback circuit as described above is constituted by core of accurate amplifier OPA627BP, and the 1 of amplifier OPA627BP
A slide-changing resistor device P2 is bridged between pin and 5 pin, the zero point of amplifier OPA627BP is adjusted by adjusting the position of 2 pin of P2；
The 2 pin inputs of amplifier OPA627BP connect slide-changing resistor device P3 and resistance R5, and electricity can be adjusted by the resistance for adjusting P3
The gain on road, the Standard resistance range of P3 is 1-1K, and the resistance of R5 is 4.22K, and 6 pin of amplifier OPA627BP are output end, output end
Series connection triode Q1, the emitter E end of its model 2N2219A, Q1 is the output end of the feedback circuit；Amplifier OPA627BP's
2 pin are 0-50K with the resistance range of emitter stage bridging slide-changing resistor the device P4, P4 of triode 2N2219A, and precision is 5%；P3 and
P4 is adjusted simultaneously, and the gain of amplifier OPA627BP can be made to be enlarged into 1-10 times, and the voltage of output is 0~10VDC voltages
Signal；The emitter E end bridging polar capacitor C1 of 2 pin of amplifier OPA627BP and triode Q1, its capacitance be 1.7uF and
Capacitance is parallel for the electric capacity C2, C1 and C2 of 0.01uF.
± 15V the piezoelectric signals that isolation circuit is produced mainly are filtered treatment by filter circuit as described above, to difference
Negative feedback amplifier circuit is divided to provide the direct current supply of stabilization；
Filter circuit is constituted by core of BNX025H01 types filtration module F1 and F2, and the module is responsible for isolation module U1
± 15VDC the power supplys for exported after DC-DC conversions are filtered, and output ± 15VDC is used for being put for difference negative-feedback after treatment
The direct current supply of big circuit with stable；
The input of F1 and F2 is respectively B ends and PSG ends, and output end is respectively CB ends and CG ends；
The voltage Viso+15V and Viso-15V, Viso+15V that the input of F1 and F2 connects isolation module generation respectively connect
The B ends of F1 are connect, Viso-15V connects the B ends of F2, bridges polar capacitor C6 and C7 between the B ends and PSG ends of F1 and F2 respectively, holds
Value extremely 6.8uF, ceiling voltage is 50V, and the positive pole of C6 is connected to B ends, and the positive pole of C7 is connected to PSG ends；
The output end CB of F1 is connected ground GND1 ends parallel connection polar capacitor C12 and electric capacity C14 after 560uH inductance respectively；F2
Output end CB connect ground GND1 ends parallel connection polar capacitor C13 and electric capacity C15 respectively after 560uH inductance.
The beneficial effects of the invention are as follows：
The present invention includes difference negative feedback amplifier circuit, isolation amplifier circuit, reverse negative-feedback circuit and filter circuit.This
Invention has circuit form simple, low cost, reliability advantage high, substantially increase reactor core Nuclear measurement system security and can
By property, it is ensured that the operation steady in a long-term in power station.
Brief description of the drawings
Fig. 1 is the structural principle of the high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system of the invention is used
Figure；
Fig. 2 is that the difference of the high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system of the invention is used is negative anti-
Present the schematic diagram of amplifying circuit；
Fig. 3 is the isolation amplifier of the high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system of the invention is used
The schematic diagram of circuit；
Fig. 4 is the reversely negative anti-of the high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system of the invention is used
The schematic diagram of current feed circuit；
Fig. 5 is the filter circuit of the high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system of the invention is used
Schematic diagram.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.
As shown in figure 1, a kind of high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used, including difference is negative anti-
Feedback amplifying circuit, isolation amplifier module, reverse negative-feedback circuit and filter circuit composition, externally fed voltage is ± 15VDC, defeated
Go out voltage for 0-10V d. c. voltage signals.The output end of difference negative feedback amplifier circuit connects with the input of isolation amplifier module
Connect, the output end of isolation amplifier module is connected with the input of filter circuit and the input of reverse negative-feedback circuit respectively, filter
The output end of wave circuit is connected with the input of difference negative feedback amplifier circuit.Difference negative feedback amplifier circuit is used to believe input
Number carry out 50 times of amplifications.Isolation amplifier circuit is used to be isolated the signal that difference negative feedback amplifier circuit is sent into, after isolation
Signal input in reverse negative-feedback circuit.Reverse negative-feedback circuit is used to be amplified the signal after isolation.Filtered electrical
± 15VDC the power supplys that road is used for after being changed to isolation module are filtered, and ± the 15VDC after treatment is used for being put for difference negative-feedback
Big circuit provides direct current supply.
Difference negative feedback amplifier circuit is illustrated in figure 2, the operational amplifier of the circuit uses accurate operation amplifier
Device, its model is OPA627BP, and the input bias current of the type amplifier is 1pA, and differential input impedance is up to 1013 Ω, temperature drift
0.8 μ V/ DEG C, bias voltage is 0.1mV, amplifier has outside zeroing end, it is possible to use potentiometer eliminates imbalance, it is possible to increase put
The output accuracy of big device.Difference negative feedback amplifier circuit is responsible for exporting electric to isolation amplifier after input signal is accurately amplified into 50 times
Road, multiplication factor is determined by adjusting the position of upper 2 pin of slide-changing resistor device P1.
Difference is put and two diodes D1 and D2 are carried out into reversal connection reality between the pin of differential input end 2 of device OPA627BP and 3 pin
Existing defencive function, the diode model BAS116 that D1 and D2 are used.Difference puts 3 pin and 2 pin inputs point of device OPA627BP
Not Chuan Lian protective resistance R1 and R2, resistance is 4.75k.2 pin bridging resistance R4 and the electric capacity in parallel with 6 pin of amplifier OPA627BP
The resistance of C3, R4 is 237k, and the capacitance of C3 is 0.1uF.Difference to be put and connect slide-changing resistor between 1 pin of device OPA627BP and 5 pin
7 pin that 2 pin of device P1, P1 put device OPA627BP with difference are connected, and it is negative anti-to reach change difference by the position of upper 2 pin of mobile P1
Present the multiplication factor of amplifying circuit.
Isolation amplifier circuit is illustrated in figure 3, isolation amplifier circuit does not only have buffer action, and can produce ± 15V
Voltage signal, the voltage signal is used to supply difference negative feedback amplifier circuit after filtering and uses afterwards.
Isolation amplifier circuit is constituted by core of isolation amplifier AD215BY, and the isolation voltage of the type amplifier reaches 1500VAC,
Gain is unit gain, and nonlinear precision is zero potentiometer for ± 0.005%, P6.The module carries out 1 to input signal:1 every
From output, interfering between front stage circuit is prevented.The connection of isolation amplifier circuit peripheral device is the fixation of the AD215BY
Connection, the other end of 36 pin connection the electricity R9, R9 of AD215BY is connected on the pin of sliding end 2 of slide rheostat P6, and P6 is to slide change
Resistor, its 3 pin is connected with the ground terminal of board GND2, and 1 pin of P6 is connected with R8, and the other end of R8 connection board anode is powered electricity
The resistance of source+15V, R9 is 1M, and the resistance of R8 is 100K, and the Standard resistance range of P6 is 0-10K.
Reverse negative-feedback circuit is illustrated in figure 4, reverse negative-feedback circuit is constituted by core of accurate amplifier OPA627BP,
Bridge a slide-changing resistor device P2 between 1 pin and 5 pin of amplifier OPA627BP, amplifier is adjusted by adjusting the position of 2 pin of P2
The zero point of OPA627BP.The 2 pin inputs of amplifier OPA627BP connect slide-changing resistor device P3 and resistance R5, by adjusting P3's
Resistance can adjust the gain of circuit, and the Standard resistance range of P3 is 1-1K, and the resistance of R5 is 4.22K, and 6 pin of amplifier OPA627BP are
Output end, output end series connection triode Q1, the emitter E end of its model 2N2219A, Q1 is the output end of the feedback circuit.
2 pin of amplifier OPA627BP are 0-50K with the resistance range of emitter stage bridging slide-changing resistor the device P4, P4 of triode 2N2219A,
Precision is 5%.P3 and P4 is adjusted simultaneously, and the gain of amplifier OPA627BP can be made to be enlarged into 1-10 times, the voltage of output
It is 0~10VDC voltage signals.2 pin of amplifier OPA627BP bridge polar capacitor C1 with the emitter E end of triode Q1,
Its capacitance is 1.7uF and capacitance for the electric capacity C2, C1 and C2 of 0.01uF are parallel.
Filter circuit is illustrated in figure 5, mainly be filtered for ± 15V the piezoelectric signals that isolation circuit is produced by filter circuit
Treatment, the direct current supply of stabilization is provided to difference negative feedback amplifier circuit.
Filter circuit is constituted by core of BNX025H01 types filtration module F1 and F2, and the module is responsible for isolation module U1
± 15VDC the power supplys for exported after DC-DC conversions are filtered, and output ± 15VDC is used for being put for difference negative-feedback after treatment
The direct current supply of big circuit with stable.
The input of F1 and F2 is respectively B ends and PSG ends, and output end is respectively CB ends and CG ends.
The voltage Viso+15V and Viso-15V, Viso+15V that the input of F1 and F2 connects isolation module generation respectively connect
The B ends of F1 are connect, Viso-15V connects the B ends of F2, bridges polar capacitor C6 and C7 between the B ends and PSG ends of F1 and F2 respectively, holds
Value extremely 6.8uF, ceiling voltage is 50V, and the positive pole of C6 is connected to B ends, and the positive pole of C7 is connected to PSG ends.
The output end CB of F1 is connected ground GND1 ends parallel connection polar capacitor C12 and electric capacity C14 after 560uH inductance respectively；F2
Output end CB connect ground GND1 ends parallel connection polar capacitor C13 and electric capacity C15 respectively after 560uH inductance.
Implementation of the invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-mentioned reality
Example is applied, in the ken that those of ordinary skill in the art possess, can also be on the premise of present inventive concept not be departed from
Various changes can be made.The content not being described in detail in description of the invention can use prior art.
Claims (5)
1. the high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system is used, it is characterised in that：It is negative including difference
Feedback amplifier, isolation amplifier module, reverse negative-feedback circuit and filter circuit composition, externally fed voltage are ± 15VDC,
Output voltage is 0-10V d. c. voltage signals；The output end of difference negative feedback amplifier circuit and the input of isolation amplifier module
Connection, the output end of isolation amplifier module is connected with the input of filter circuit and the input of reverse negative-feedback circuit respectively,
The output end of filter circuit is connected with the input of difference negative feedback amplifier circuit；Difference negative feedback amplifier circuit is used for will input
Signal carries out 50 times of amplifications；Isolation amplifier circuit is used to be isolated the signal that difference negative feedback amplifier circuit is sent into, and isolates
Signal input afterwards is in reverse negative-feedback circuit；Reverse negative-feedback circuit is used to be amplified the signal after isolation；Filtering
± 15VDC the power supplys that circuit is used for after being changed to isolation module are filtered, and ± the 15VDC after treatment is used for being difference negative-feedback
Amplifying circuit provides direct current supply；
2. the high performance signal processing module that nuclear power station reactor core Nuclear measurement system according to claim 1 is used, its feature exists
In：Described difference negative feedback amplifier circuit, the operational amplifier of the circuit uses precision operational-amplifier, and its model is
OPA627BP, the input bias current of the type amplifier is 1pA, and up to 1013 Ω, temperature drift is 0.8 μ V/ DEG C, biasing to differential input impedance
Voltage is 0.1mV, amplifier has outside zeroing end, it is possible to use potentiometer eliminates imbalance, it is possible to increase the output of amplifier is smart
Degree；Difference negative feedback amplifier circuit is responsible for being exported after input signal is accurately amplified into 50 times and gives isolation amplifier circuit, multiplication factor
Determined by adjusting the position of upper 2 pin of slide-changing resistor device P1；
Difference is put and two diodes D1 and D2 are carried out into reversal connection realization guarantor between the pin of differential input end 2 of device OPA627BP and 3 pin
The diode model BAS116 that protective function, D1 and D2 are used；3 pin and 2 pin inputs that difference puts device OPA627BP are gone here and there respectively
Connection protective resistance R1 and R2, resistance is 4.75k；The 2 pin bridging resistance R4 in parallel with 6 pin and electric capacity C3, R4 of amplifier OPA627BP
Resistance be 237k, the capacitance of C3 is 0.1uF；Difference puts connection slide-changing resistor device P1 between 1 pin of device OPA627BP and 5 pin,
7 pin that 2 pin and the difference of P1 put device OPA627BP are connected, and reaching change difference negative-feedback by the position of upper 2 pin of mobile P1 puts
The multiplication factor of big circuit.
3. the high performance signal processing module that nuclear power station reactor core Nuclear measurement system according to claim 2 is used, its feature exists
In：Described isolation amplifier circuit is constituted by core of isolation amplifier AD215BY, and the isolation voltage of the type amplifier reaches 1500VAC,
Gain is unit gain, and nonlinear precision is zero potentiometer for ± 0.005%, P6；The module carries out 1 to input signal:1 every
From output, interfering between front stage circuit is prevented；The connection of isolation amplifier circuit peripheral device is the fixation of the AD215BY
Connection, the other end of 36 pin connection the electricity R9, R9 of AD215BY is connected on the pin of sliding end 2 of slide rheostat P6, and P6 is to slide change
Resistor, its 3 pin is connected with the ground terminal of board GND2, and 1 pin of P6 is connected with R8, and the other end of R8 connection board anode is powered electricity
The resistance of source+15V, R9 is 1M, and the resistance of R8 is 100K, and the Standard resistance range of P6 is 0-10K.
4. the high performance signal processing module that nuclear power station reactor core Nuclear measurement system according to claim 3 is used, its feature exists
In：Described reverse negative-feedback circuit is constituted by core of accurate amplifier OPA627BP, 1 pin and 5 pin of amplifier OPA627BP it
Between bridge a slide-changing resistor device P2, adjust the zero point of amplifier OPA627BP by adjusting the position of 2 pin of P2；Amplifier
The 2 pin inputs of OPA627BP connect slide-changing resistor device P3 and resistance R5, and circuit can be adjusted by the resistance for adjusting P3
Gain, the Standard resistance range of P3 is 1-1K, and the resistance of R5 is 4.22K, and 6 pin of amplifier OPA627BP are output end, output end series connection
The emitter E end of triode Q1, its model 2N2219A, Q1 is the output end of the feedback circuit；2 pin of amplifier OPA627BP
Resistance range with emitter stage bridging slide-changing resistor the device P4, P4 of triode 2N2219A is 0-50K, and precision is 5%；P3 and P4
Adjust simultaneously, the gain of amplifier OPA627BP can be made to be enlarged into 1-10 times, the voltage of output is 0~10VDC voltages letter
Number；2 pin of amplifier OPA627BP bridge polar capacitor C1 with the emitter E end of triode Q1, and its capacitance is 1.7uF and appearance
It is worth for the electric capacity C2, C1 and C2 of 0.01uF are parallel.
5. the high performance signal processing module that nuclear power station reactor core Nuclear measurement system according to claim 4 is used, its feature exists
In：± 15V the piezoelectric signals that isolation circuit is produced mainly are filtered treatment by described filter circuit, are put to difference negative-feedback
The direct current supply of big circuit with stable；
Filter circuit is constituted by core of BNX025H01 types filtration module F1 and F2, and the module is responsible for carrying out isolation module U1
± 15VDC the power supplys exported after DC-DC conversions are filtered, and output ± 15VDC is used for amplifying electricity for difference negative-feedback after treatment
Road provides the direct current supply of stabilization；
The input of F1 and F2 is respectively B ends and PSG ends, and output end is respectively CB ends and CG ends；
The input of F1 and F2 connects the voltage Viso+15V and Viso-15V, Viso+15V connection F1 of isolation module generation respectively
B ends, Viso-15V connect F2 B ends, bridge polar capacitor C6 and C7, capacitance pole respectively between the B ends and PSG ends of F1 and F2
It is 6.8uF, ceiling voltage is 50V, and the positive pole of C6 is connected to B ends, and the positive pole of C7 is connected to PSG ends；
The output end CB of F1 is connected ground GND1 ends parallel connection polar capacitor C12 and electric capacity C14 after 560uH inductance respectively；F2's is defeated
Go out to hold CB to connect ground GND1 ends parallel connection polar capacitor C13 and electric capacity C15 respectively after 560uH inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621285969.9U CN206272572U (en) | 2016-11-28 | 2016-11-28 | The high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621285969.9U CN206272572U (en) | 2016-11-28 | 2016-11-28 | The high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used |
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| CN206272572U true CN206272572U (en) | 2017-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621285969.9U Withdrawn - After Issue CN206272572U (en) | 2016-11-28 | 2016-11-28 | The high performance signal processing module that nuclear power station reactor core Nuclear measurement system is used |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685367A (en) * | 2016-11-28 | 2017-05-17 | 中核核电运行管理有限公司 | High-performance signal processing module used by nuclear power station reactor core nuclear measurement system |
| CN106849889A (en) * | 2016-11-28 | 2017-06-13 | 中核核电运行管理有限公司 | The high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system is used |
| CN107656121A (en) * | 2017-11-09 | 2018-02-02 | 珠海泰坦科技股份有限公司 | A kind of low cost DC voltage isolation picking circuit |
-
2016
- 2016-11-28 CN CN201621285969.9U patent/CN206272572U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106685367A (en) * | 2016-11-28 | 2017-05-17 | 中核核电运行管理有限公司 | High-performance signal processing module used by nuclear power station reactor core nuclear measurement system |
| CN106849889A (en) * | 2016-11-28 | 2017-06-13 | 中核核电运行管理有限公司 | The high performance signal processing module that a kind of nuclear power station reactor core Nuclear measurement system is used |
| CN106685367B (en) * | 2016-11-28 | 2023-10-20 | 中核核电运行管理有限公司 | High-performance signal processing module for nuclear power station reactor core nuclear testing system |
| CN106849889B (en) * | 2016-11-28 | 2023-10-20 | 中核核电运行管理有限公司 | High-performance signal processing module for nuclear power station reactor core nuclear testing system |
| CN107656121A (en) * | 2017-11-09 | 2018-02-02 | 珠海泰坦科技股份有限公司 | A kind of low cost DC voltage isolation picking circuit |
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