CN106199137A - A kind of anode electrolytic cell current measuring device signal processing system - Google Patents
A kind of anode electrolytic cell current measuring device signal processing system Download PDFInfo
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- CN106199137A CN106199137A CN201610727748.0A CN201610727748A CN106199137A CN 106199137 A CN106199137 A CN 106199137A CN 201610727748 A CN201610727748 A CN 201610727748A CN 106199137 A CN106199137 A CN 106199137A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0092—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring current only
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Abstract
The invention discloses a kind of anode electrolytic cell current measuring device signal processing system, it is characterized in that, mainly by processing chip U, signal picker JS, audion VT4, polar capacitor C11, diode D8, the second-order low-pass filter circuit being connected with signal picker JS, is serially connected in second-order low-pass filter circuit and the emitter-coupled logic (ECL) processed between chip U, and the circuit linearity insulating circuit composition being connected with the OUT pin processing chip U and G pin and CLK pin respectively.The present invention is reasonable in design, and overall structure is simple, and using effect is good, can well guarantee the accurate measurement that the electric current of anode rod is carried out by anode electrolytic cell current measuring device.
Description
Technical field
The present invention relates to a kind of processing system, specifically, be a kind of anode electrolytic cell current measuring device letter
Number processing system.
Background technology
Aluminium electroloysis industry at home typically requires in prebaked cell production process the distribution to anode current survey
Amount, traditional anode current detecting system is the manual measurement method using the equidistant voltage drop of off-line, due to the equidistant voltage of off-line
The manual measurement method of fall can only measure an anode every time, carries out the measurement of next anode, this measurement side after having operated again
The process of measurement of method is complicated, workload big, and the time of measuring is long, causes measurement result to there is time difference, it is impossible to truly to reflect
The distribution situation of anode electrolytic cell electric current.Along with the development of aluminium electroloysis industry, anode current detecting system is also entered by people
Gone improvement, i.e. the side at the clamping plate of the bus for fixing jointed anode bar arranges one or more for the work to bus
Carry out the probe of the automatically retractable detected as electric current, this probe is connected with signal picker by the way of electrical connection, letter
Number harvester is transferred to the control centre on backstage by signal processing system after then being processed by the information Man of collection, in control
The heart is by just can get the current value of anode electrolytic cell bar after converting the information received.And this anode electrolytic cell electric current
Measurement apparatus is the most accurate to the current detecting of anode rod, then depend on signal processing system in anode electrolytic cell current measuring device
Unite the most accurate to signal processing.
But, in existing anode electrolytic cell current measuring device, the effect to signal processing of signal processing system is not
Good, the current information causing anode rod detected by anode electrolytic cell current measuring device is inaccurate.Therefore it provides a kind of energy
It is the task of top priority that raising is analyzed the anode electrolytic cell current measuring device signal processing system for the treatment of effect to signal.
Summary of the invention
It is an object of the invention to overcome signal processing system in anode electrolytic cell current measuring device of the prior art
The defect of the poor effect to signal processing, it is provided that a kind of anode electrolytic cell current measuring device signal processing system.
To achieve these goals, the scheme that the present invention uses is as follows: a kind of anode electrolytic cell current measuring device letter
Number processing system, mainly by processing chip U, signal picker JS, audion VT4, positive pole is connected with the emitter stage of audion VT4
Connect, negative pole after inductance L2 with the polar capacitor C12 that is connected of COMP pin processing chip U, positive pole and the B processing chip U
The current collection of the polar capacitor C11 that pin is connected, negative pole is connected with the COMP pin of process chip U, one end and audion VT4
Pole is connected, resistance R18, the P pole of other end ground connection base stage with audion VT4 after resistance R19 is connected, N pole and process
Diode D7, P pole that the OUT pin of chip U is connected is connected with the CS pin processing chip U, N pole with process chip U
GND pin be connected after the diode D8 of ground connection, the second-order low-pass filter circuit being connected with signal picker JS, be serially connected in two
Rank low-pass filter circuit and the emitter-coupled logic (ECL) processed between chip U, and manage with the OUT processing chip U respectively
The circuit linearity insulating circuit composition that foot is connected with G pin and CLK pin；The OUT pin of described process chip U is also managed with CLK
Foot is connected, its VC pin is then connected with outside 12V DC source；The negative pole of described polar capacitor C12 also with process chip U
B pin be connected；The P pole of described diode D7 is also connected with the IN pin processing chip U.
Described second-order low-pass filter electricity routing amplifier P1, audion VT1, audion VT2, positive pole is with this amplifier P1's
The polar capacitor C1 that positive pole is connected, negative pole is connected with the outfan pole of signal picker JS, positive pole after resistance R2 with put
The polar capacitor C2 that the positive pole of big device P1 is connected, negative pole emitter stage with audion VT1 after resistance R1 is connected, one end with
The negative pole of polar capacitor C2 is connected, resistance R3, the N pole of other end ground connection is connected with the colelctor electrode of audion VT1, P pole with
The Zener diode D1 that emitter-coupled logic (ECL) is connected, positive pole is connected with the base stage of audion VT1, negative pole and amplification
The polar capacitor C3 that the outfan of device P1 is connected, one end is connected with the base stage of audion VT1, the other end and amplifier P1
The resistance R4 that outfan is connected, one end is connected with the negative pole of amplifier P1, the other end is connected with the outfan of amplifier P1
Inductance L1, the P pole connect is connected with the negative pole of amplifier P1, N pole base stage with audion VT2 after resistance R5 is connected two
Pole pipe D2, positive pole negative pole with amplifier P1 after resistance R6 is connected, polar capacitor C4, the P pole of minus earth and polarity electricity
Hold the diode D3 that negative pole is connected, N pole emitter stage with audion VT2 after resistance R8 is connected of C4, and one end with
The adjustable resistance R7 composition that the N pole of diode D2 is connected, the other end is connected with the P pole of diode D3；Described amplifier P1
Outfan be connected with the colelctor electrode of audion VT2；The outfan of described amplifier P1 also with emitter-coupled logic (ECL)
It is connected.
Described emitter-coupled logic (ECL) is by amplifier P2, audion VT3, field effect transistor MOS1, and N pole is through resistance R13
The diode D5 that base stage with audion VT3 is connected afterwards, P pole is connected with the outfan of amplifier P1, positive pole and diode
The P pole of D5 is connected, negative pole negative pole with amplifier P2 after resistance R15 is connected polar capacitor C9, P pole and amplifier P2
The diode D6 that negative pole is connected, N pole outfan with amplifier P2 after resistance R16 is connected, positive pole is after resistance R17
Be connected with the negative pole of amplifier P2, polar capacitor C10, P pole that negative pole is connected with the outfan of amplifier P2 and amplifier
The diode D4 that the positive pole of P2 is connected, N pole colelctor electrode with audion VT3 after resistance R11 is connected, positive pole and field effect
The P pole of the polar capacitor C6 that the drain electrode of pipe MOS1 is connected, negative pole is connected with the P pole of diode D4, positive pole and diode D4
Be connected, the polar capacitor C7 of minus earth, positive pole is connected with the grid of field effect transistor MOS1, negative pole after resistance R10 with
The polar capacitor C5 that the colelctor electrode of audion VT3 is connected, one end is connected with the source electrode of field effect transistor MOS1, other end ground connection
Resistance R9, and positive pole colelctor electrode with audion VT3 after resistance R12 is connected, negative pole after resistance R14 with amplifier
The polar capacitor C8 composition that the outfan of P2 is connected；The minus earth of described amplifier P2, its positive pole also with the N of diode D5
Pole is connected, its outfan is connected with the emitter stage of audion VT3 and the IN pin of process chip U respectively；Described field effect
The source electrode of pipe MOS is connected with the P pole of Zener diode D1 and the VC pin of process chip U respectively.
Described circuit linearity insulating circuit is by amplifier P3, field effect transistor MOS2, audion VT5, and positive pole is with process chip U's
The polar capacitor C13 that CLK pin is connected, negative pole is connected with the source electrode of field effect transistor MOS2 after resistance R20, positive pole and field
The drain electrode of effect pipe MOS2 is connected, the polar capacitor C16 of minus earth, positive pole after resistance R21 with field effect transistor MOS2
The polar capacitor C15 that source electrode is connected, negative pole negative pole with polar capacitor C16 after inductance L3 is connected, one end and polarity electricity
Hold adjustable resistance R25, the P pole that negative pole is connected, the other end is connected and the polar capacitor of C16 with the colelctor electrode of audion VT5
The diode D10 that the negative pole of C16 is connected, N pole is connected with the colelctor electrode of audion VT5, positive pole after resistance R26 with amplification
Polar capacitor C17, the P pole that the negative pole of device P3 is connected, negative pole is connected with the outfan of amplifier P3 is negative with amplifier P3's
Pole be connected after diode D11, the P pole that is connected of ground connection, N pole outfan with amplifier P3 after resistance R27 and amplifier
The diode D9 that the positive pole of P3 is connected, N pole outfan with amplifier P3 after resistance R23 is connected, positive pole and amplifier
The outfan of P3 is connected, the polar capacitor C18 of minus earth, and positive pole after resistance R22 with the grid of field effect transistor MOS2
The polar capacitor C14 composition that pole is connected, negative pole outfan with amplifier P3 after resistance R24 is connected；Described audion
The colelctor electrode of VT5 also negative pole with amplifier P3 is connected, its emitter stage is connected with the positive pole of amplifier P3, its base stage and place
The OUT pin of reason chip U is connected；The described G pin of process chip U is connected with the positive pole of polar capacitor C14；Described amplification
The outfan that the outfan of device P3 as circuit linearity insulating circuit is.
For the practical effect of the present invention, described process chip U the most preferentially have employed the integrated chip of MB40978 and comes real
Existing.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) present invention is reasonable in design, and overall structure is simple, and using effect is good, can well guarantee anode electrolytic cell electric current
The accurate measurement that the electric current of anode rod is carried out by measurement apparatus.
(2) unnecessary radio-frequency component present in signal can be eliminated or suppress by the present invention；And energy of the present invention
The quiescent point of signal is adjusted, makes the quiescent point of signal keep stable, simultaneously to the difference mode signal in signal
It is amplified, the common-mode signal in signal is suppressed, effectively inhibit the null offset of signal, thus improve this
The effect of the bright analyzing and processing to signal, it is ensured that anode electrolytic cell current measuring device is accurate to the current measurement of anode rod
Property.
(3) peak point current produced during output signal can be adjusted or suppress by the present invention, makes peak point current be less than
, there is the probability of distortion, thus improves the present invention effect to the analyzing and processing of signal in 5mA when effectively reducing signal output
Really.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but embodiments of the present invention are not
It is limited to this.
Embodiment
During enforcement, the present invention mainly by process chip U, signal picker JS, audion VT4, resistance R18, resistance R19,
Polar capacitor C11, polar capacitor C12, inductance L2, diode D7, diode D8, second-order low-pass filter circuit, emitter stage couples
Logic circuit, and circuit linearity insulating circuit composition.
During connection, the positive pole of polar capacitor C12 is connected with the emitter stage of audion VT4, negative pole after inductance L2 with place
The COMP pin of reason chip U is connected.The positive pole of polar capacitor C11 is connected with the B pin processing chip U, negative pole and process
The COMP pin of chip U is connected.One end of resistance R18 is connected with the colelctor electrode of audion VT4, other end ground connection.
Meanwhile, the P pole of diode D7 base stage with audion VT4 after resistance R19 is connected, N pole with process chip U's
OUT pin is connected.The P pole of diode D8 is connected with the CS pin processing chip U, N pole and the GND pin processing chip U
Ground connection after being connected.Second-order low-pass filter circuit is connected with signal picker JS.Emitter-coupled logic (ECL) is serially connected in two
Between rank low-pass filter circuit and process chip U.Circuit linearity insulating circuit respectively with process the OUT pin of chip U and G pin and
CLK pin is connected.
The OUT pin of described process chip U is also connected with CLK pin, its VC pin then with outside 12V DC source phase
Connect；The negative pole of described polar capacitor C12 is also connected with the B pin processing chip U；The P pole of described diode D7 also with place
The IN pin of reason chip U is connected.
During enforcement, inductance L2, polar capacitor C11, polar capacitor C12, resistance R19 and diode D7 in the present invention are common
Forming high resistant and plant ripple device, this high resistant plants ripple device can effectively eliminate the Electromagnetic Interference signal in the external world, it is ensured that process chip U work
Stability when making and reliability.Signal input pole and the anode electrolytic cell current measuring device of the signal picker JS of the present invention
Probe electrical connection, this signal picker JS is for receiving the anode electrolytic cell current information of probe collection.Wherein, for this
Bright practical effect, described process chip U the most preferentially have employed the integrated chip of MB40978 and realizes.
Further, described second-order low-pass filter electricity routing amplifier P1, audion VT1, audion VT2, resistance R1, electricity
Resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, adjustable resistance R7, resistance R8, polar capacitor C1, polar capacitor C2, polarity
Electric capacity C3, polar capacitor C4, inductance L1, Zener diode D1, diode D2, and diode D3 form.
During connection, the positive pole of polar capacitor C1 is connected with the positive pole of this amplifier P1, and negative pole is with signal picker JS's
Outfan pole is connected.The positive pole of polar capacitor C2 positive pole with amplifier P1 after resistance R2 is connected, and negative pole is through resistance R1
Emitter stage with audion VT1 is connected afterwards.One end of resistance R3 is connected with the negative pole of polar capacitor C2, other end ground connection.
The N pole of Zener diode D1 is connected with the colelctor electrode of audion VT1, and P pole is connected with emitter-coupled logic (ECL).
Wherein, the positive pole of polar capacitor C3 is connected with the base stage of audion VT1, the outfan phase of negative pole and amplifier P1
Connect.One end of resistance R4 is connected with the base stage of audion VT1, and the other end is connected with the outfan of amplifier P1.Inductance
One end of L1 is connected with the negative pole of amplifier P1, and the other end is connected with the outfan of amplifier P1.The P pole of diode D2 with
The negative pole of amplifier P1 is connected, and N pole base stage with audion VT2 after resistance R5 is connected.
Meanwhile, the positive pole of polar capacitor C4 negative pole with amplifier P1 after resistance R6 is connected, minus earth.Diode
The P pole of D3 is connected with the negative pole of polar capacitor C4, and N pole emitter stage with audion VT2 after resistance R8 is connected.Adjustable electric
One end of resistance R7 is connected with the N pole of diode D2, and the other end is connected with the P pole of diode D3.Described amplifier P1's is defeated
Go out end to be connected with the colelctor electrode of audion VT2；The outfan of described amplifier P1 is also connected with emitter-coupled logic (ECL)
Connect.
Further, described emitter-coupled logic (ECL) is by amplifier P2, audion VT3, field effect transistor MOS1, electricity
Resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, polar capacitor
C5, polar capacitor C6, polar capacitor C7, polar capacitor C8, polar capacitor C9, polar capacitor C10, diode D4, diode D5,
And diode D6 composition.
During connection, the N pole of diode D5 base stage with audion VT3 after resistance R13 is connected, P pole and amplifier P1
Outfan be connected.The positive pole of polar capacitor C9 is connected with the P pole of diode D5, negative pole after resistance R15 with amplifier
The negative pole of P2 is connected.The P pole of diode D6 is connected with the negative pole of amplifier P2, N pole after resistance R16 with amplifier P2's
Outfan is connected.The positive pole of polar capacitor C10 negative pole with amplifier P2 after resistance R17 is connected, negative pole and amplifier
The outfan of P2 is connected.
Wherein, the P pole of diode D4 is connected with the positive pole of amplifier P2, N pole after resistance R11 with audion VT3's
Colelctor electrode is connected.The positive pole of polar capacitor C6 is connected with the drain electrode of field effect transistor MOS1, the P pole phase of negative pole and diode D4
Connect.The positive pole of polar capacitor C7 is connected with the P pole of diode D4, minus earth.
Meanwhile, the positive pole of polar capacitor C5 is connected with the grid of field effect transistor MOS1, negative pole after resistance R10 with three poles
The colelctor electrode of pipe VT3 is connected.One end of resistance R9 is connected with the source electrode of field effect transistor MOS1, other end ground connection.Polarity electricity
The positive pole colelctor electrode with audion VT3 after resistance R12 holding C8 is connected, negative pole defeated with amplifier P2 after resistance R14
Go out end to be connected.
The minus earth of described amplifier P2, its positive pole is also connected with the N pole of diode D5, and its outfan is respectively with three
The emitter stage of pole pipe VT3 is connected with the IN pin processing chip U；The source electrode of described field effect transistor MOS respectively with voltage stabilizing two pole
The P pole of pipe D1 is connected with the VC pin processing chip U.
Yet further, described circuit linearity insulating circuit by amplifier P3, field effect transistor MOS2, audion VT5, resistance R20,
Resistance R21, resistance R22, resistance R23, resistance R24, adjustable resistance R25, resistance R26, resistance R27, polar capacitor C13, polarity
Electric capacity C14, polar capacitor C15, polar capacitor C16, polar capacitor C17, polar capacitor C18, inductance L5, diode D9, two poles
Pipe D10, and diode D11 composition.
During connection, the positive pole of polar capacitor C13 with process chip U CLK pin be connected, negative pole after resistance R20 with
The source electrode of field effect transistor MOS2 is connected.The positive pole of polar capacitor C16 is connected with the drain electrode of field effect transistor MOS2, and negative pole connects
Ground.The positive pole of polar capacitor C15 source electrode with field effect transistor MOS2 after resistance R21 is connected, negative pole after inductance L3 with pole
The negative pole of property electric capacity C16 is connected.
Wherein, one end of adjustable resistance R25 is connected with the negative pole of polar capacitor C16, the other end and the collection of audion VT5
Electrode is connected.The P pole of diode D10 is connected with the negative pole of polar capacitor C16, and N pole is connected with the colelctor electrode of audion VT5
Connect.The positive pole of polar capacitor C17 negative pole with amplifier P3 after resistance R26 is connected, the outfan of negative pole and amplifier P3
It is connected.The P pole of diode D11 be connected with the negative pole of amplifier P3 after ground connection, N pole after resistance R27 with amplifier P3's
Outfan is connected.
Meanwhile, the P pole of diode D9 is connected with the positive pole of amplifier P3, N pole defeated with amplifier P3 after resistance R23
Go out end to be connected.The positive pole of polar capacitor C18 is connected with the outfan of amplifier P3, minus earth.Polar capacitor C14 is just
Pole grid with field effect transistor MOS2 after resistance R22 is connected, and negative pole outfan with amplifier P3 after resistance R24 is connected
Connect.
The colelctor electrode of described audion VT5 also negative pole with amplifier P3 is connected, and its emitter stage is with amplifier P3 just
Pole is connected, and its base stage is connected with the OUT pin processing chip U；The G pin of described process chip U is with polar capacitor C14's
Positive pole is connected；Outfan that the outfan of described amplifier P3 as circuit linearity insulating circuit is also is surveyed with anode electrolytic cell electric current
The input of the control centre of amount device is connected.
During operation, the second-order low-pass filter circuit of the present invention can pass through polar capacitor C1, inductance L1 and adjustable resistance R7 produces
Raw high impedance, the unnecessary radio-frequency component in input signal can be eliminated or suppress by this impedance very well, this circuit simultaneously
Signal after processing exports after being adjusted, it is ensured that the frequency of signal keeps stable.And the emitter stage coupling of the present invention
The quiescent point of signal can be adjusted by logic circuit, makes the quiescent point of signal keep stable, simultaneously in signal
Difference mode signal be amplified, the common-mode signal in signal is suppressed, effectively inhibits the null offset of signal, thus
Improve the present invention effect to the analyzing and processing of signal, it is ensured that the anode electrolytic cell current measuring device electric current to anode rod
The accuracy measured.The circuit linearity insulating circuit of the present invention passes through field effect transistor MOS2, polar capacitor C13, resistance R20, electricity simultaneously
The peak point current produced during output signal can be adjusted or press down by the isolator that resistance R21, polar capacitor C15, inductance L3 are formed
System, and this circuit also by adjustable resistance R25, audion VT5, amplifier P3 high-resistance current-limiting after signal export time generation
Peak point current be adjusted to not exceed 5mA, when effectively reducing signal output, the probability of distortion occurs, thus improves the present invention
Effect to the analyzing and processing of signal.
According to above-described embodiment, can well realize the present invention.
Claims (5)
1. an anode electrolytic cell current measuring device signal processing system, it is characterised in that mainly by processing chip U, letter
Number harvester JS, audion VT4, positive pole is connected with the emitter stage of audion VT4, negative pole after inductance L2 with process chip U
The polar capacitor C12 that is connected of COMP pin, positive pole is connected with the B pin processing chip U, negative pole is with process chip U's
The polar capacitor C11 that COMP pin is connected, one end is connected with the colelctor electrode of audion VT4, the resistance of other end ground connection
Two poles that R18, P pole base stage with audion VT4 after resistance R19 is connected, N pole is connected with the OUT pin processing chip U
The diode of ground connection after pipe D7, P pole is connected with the CS pin processing chip U, N pole is connected with the GND pin processing chip U
D8, the second-order low-pass filter circuit being connected with signal picker JS, be serially connected in second-order low-pass filter circuit with process chip U it
Between emitter-coupled logic (ECL), and respectively with process the OUT pin of chip U and G pin and CLK pin is connected
Circuit linearity insulating circuit forms；The OUT pin of described process chip U is also connected with CLK pin, its VC pin then with outside 12V
DC source is connected；The negative pole of described polar capacitor C12 is also connected with the B pin processing chip U；Described diode D7's
P pole is also connected with the IN pin processing chip U.
A kind of anode electrolytic cell current measuring device signal processing system the most according to claim 1, it is characterised in that
Described second-order low-pass filter electricity routing amplifier P1, audion VT1, audion VT2, positive pole is connected with the positive pole of this amplifier P1
Connect, polar capacitor C1 that negative pole is connected with the outfan pole of signal picker JS, positive pole after resistance R2 with amplifier P1's
The polar capacitor C2 that positive pole is connected, negative pole emitter stage with audion VT1 after resistance R1 is connected, one end and polar capacitor
The negative pole of C2 is connected, resistance R3, the N pole of other end ground connection is connected with the colelctor electrode of audion VT1, P pole and emitter stage coupling
The Zener diode D1 that combinational logic circuit is connected, positive pole is connected with the base stage of audion VT1, negative pole is defeated with amplifier P1's
Going out the polar capacitor C3 that is connected of end, one end is connected with the base stage of audion VT1, the other end and the outfan phase of amplifier P1
The resistance R4 connected, the inductance that one end is connected with the negative pole of amplifier P1, the other end is connected with the outfan of amplifier P1
The diode D2 that L1, P pole is connected with the negative pole of amplifier P1, N pole base stage with audion VT2 after resistance R5 is connected,
Positive pole negative pole with amplifier P1 after resistance R6 is connected, polar capacitor C4, the P pole of minus earth is negative with polar capacitor C4's
The diode D3 that pole is connected, N pole emitter stage with audion VT2 after resistance R8 is connected, and one end and diode D2
The adjustable resistance R7 that N pole is connected, the other end is connected with the P pole of diode D3 composition；The outfan of described amplifier P1
It is connected with the colelctor electrode of audion VT2；The outfan of described amplifier P1 is also connected with emitter-coupled logic (ECL).
A kind of anode electrolytic cell current measuring device signal processing system the most according to claim 2, it is characterised in that
Described emitter-coupled logic (ECL) by amplifier P2, audion VT3, field effect transistor MOS1, N pole after resistance R13 with three poles
The diode D5 that the base stage of pipe VT3 is connected, P pole is connected with the outfan of amplifier P1, the P pole phase of positive pole and diode D5
Connect, the negative pole phase of polar capacitor C9, P pole that negative pole negative pole with amplifier P2 after resistance R15 is connected and amplifier P2
Connect, diode D6 that N pole outfan with amplifier P2 after resistance R16 is connected, positive pole after resistance R17 with amplifier
Polar capacitor C10, the P pole that the negative pole of P2 is connected, negative pole is connected with the outfan of amplifier P2 and the positive pole of amplifier P2
Be connected, diode D4 that N pole colelctor electrode with audion VT3 after resistance R11 is connected, positive pole and field effect transistor MOS1
The polar capacitor C6 that drain electrode is connected, negative pole is connected with the P pole of diode D4, positive pole is connected with the P pole of diode D4, bears
The polar capacitor C7 of pole ground connection, positive pole is connected with the grid of field effect transistor MOS1, negative pole after resistance R10 with audion VT3
The polar capacitor C5 that is connected of colelctor electrode, one end is connected with the source electrode of field effect transistor MOS1, the resistance R9 of other end ground connection,
And positive pole colelctor electrode with audion VT3 after resistance R12 is connected, negative pole after resistance R14 with the output of amplifier P2
The polar capacitor C8 composition that end is connected；The minus earth of described amplifier P2, its positive pole also N with diode D5 is extremely connected
Connect, its outfan is connected with the emitter stage of audion VT3 and the IN pin of process chip U respectively；Described field effect transistor MOS
Source electrode is connected with the P pole of Zener diode D1 and the VC pin of process chip U respectively.
A kind of anode electrolytic cell current measuring device signal processing system the most according to claim 3, it is characterised in that
Described circuit linearity insulating circuit is by amplifier P3, field effect transistor MOS2, audion VT5, positive pole and the CLK pin phase processing chip U
The polar capacitor C13 that connection, negative pole are connected with the source electrode of field effect transistor MOS2 after resistance R20, positive pole and field effect transistor
The drain electrode of MOS2 is connected, the polar capacitor C16 of minus earth, positive pole after resistance R21 with the source electrode phase of field effect transistor MOS2
Connect, polar capacitor C15 that negative pole negative pole with polar capacitor C16 after inductance L3 is connected, one end is with polar capacitor C16's
Adjustable resistance R25, the P pole that negative pole is connected, the other end is connected with the colelctor electrode of audion VT5 is negative with polar capacitor C16's
The diode D10 that pole is connected, N pole is connected with the colelctor electrode of audion VT5, positive pole after resistance R26 with amplifier P3's
Polar capacitor C17, the P pole that negative pole is connected, negative pole is connected with the outfan of amplifier P3 is connected with the negative pole of amplifier P3
With amplifier P3 just connect diode D11, P pole that rear ground connection, the N pole outfan with amplifier P3 after resistance R27 is connected
The diode D9 that pole is connected, N pole outfan with amplifier P3 after resistance R23 is connected, positive pole is defeated with amplifier P3's
Go out end be connected, the polar capacitor C18 of minus earth, and positive pole grid with field effect transistor MOS2 after resistance R22 is connected
Connect, polar capacitor C14 composition that negative pole outfan with amplifier P3 after resistance R24 is connected；The collection of described audion VT5
Electrode also negative pole with amplifier P3 is connected, its emitter stage is connected with the positive pole of amplifier P3, its base stage with process chip U
OUT pin be connected；The described G pin of process chip U is connected with the positive pole of polar capacitor C14；Described amplifier P3's
The outfan that outfan as circuit linearity insulating circuit is.
A kind of anode electrolytic cell current measuring device signal processing system the most according to claim 4, it is characterised in that
Described process chip U is the integrated chip of MB40978.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727748.0A CN106199137A (en) | 2016-08-25 | 2016-08-25 | A kind of anode electrolytic cell current measuring device signal processing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610727748.0A CN106199137A (en) | 2016-08-25 | 2016-08-25 | A kind of anode electrolytic cell current measuring device signal processing system |
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| Publication Number | Publication Date |
|---|---|
| CN106199137A true CN106199137A (en) | 2016-12-07 |
Family
ID=57524377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610727748.0A Withdrawn CN106199137A (en) | 2016-08-25 | 2016-08-25 | A kind of anode electrolytic cell current measuring device signal processing system |
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| Country | Link |
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| CN (1) | CN106199137A (en) |
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2016
- 2016-08-25 CN CN201610727748.0A patent/CN106199137A/en not_active Withdrawn
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Application publication date: 20161207 |
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