CN2496394Y - Brain blood flow real-time monitor - Google Patents

Abstract

The utility model relates to a novel medical instrument, in particular to a cerebral blood flow real-time monitor used for diagnosing brain blood vessel ischemic disease paroxysm. The utility model consists of a casing body and an internal controlling circuit, and the circuit consists of a cerebral blood flow circuit, an oscillographic circuit, a power circuit, and a paper advance speed stabilizing circuit. Each controlling key mutually connected with the internal circuit is arranged on the front panel, the output end of the cerebral blood flow circuit part is connected with the input end of the oscillographic circuit part, the power end of the cerebral blood flow circuit part and the power end of the oscillographic circuit part are connected with the output end of the power circuit part, and the power input end of the paper advance speed stabilizing circuit is connected with one primary end of the output voltage changer of the power circuit, and is mutually connected with the cerebral blood flow circuit part through a switch. The structure is novel and unique, the utility model can continuously display cerebral blood flow signal in an oscillographic way, and can trace and conserve the cerebral blood flow signal, having dual purpose alternating current and direct current, the wave form is clear, the extent can be arbitrarily enlarged, the display is multi-trace, the performance is stable and reliable, the utility model is conveniently and effectively used for the real-time monitoring of the blood flow, the diagnosis and the treatment of the cerebrovascular disease are convenient, the problem that an existing cerebral blood flow graph instrument cannot continuously monitor and catch the one-time cerebral ischemia is overcome, and the utility model has the great generalization application value.

Description

The real-time monitor of cerebral blood flow

(1) technical field

This utility model is a kind of novel medical diagnostic equipment, particularly relates to a kind of real-time monitor of cerebral blood flow of diagnosing the cerebrovascular ischemia seizure of disease.

(2) background technology

Cerebrovascular is a common frdquently encountered disease, health and life to the people bring harm, therefore, diagnosis monitoring to such disease is very necessary, present brain flow graph instrument only can carry out moment and trace, can not carry out on-line monitor, and can't catch transient cerebral ischemia, be unfavorable for the diagnosis of ischemic cerebrovascular and cerebral resuscitation patient's monitoring.In science and technology and constantly progress and the today of improving of medical level, rheoencephalograph does not satisfy the needs to the cerebrovascular diagnosis and treatment far away.

(3) utility model content

This utility model is exactly at above-mentioned situation, for the technical problem that solves diagnosis of cerebral vascular disease provides a kind of novel cerebral blood flow real-time monitor, it is according to the needs design of guarding cerebral blood flow the cerebral blood flow circuit to be arranged, the oscillography circuit, paper feed speed-stabilizing circuit and power circuit, and it is organically combined, be contained in the housing that has each control key and display window and constitute, co-structured simple, novel unique, can carry out continuous oscillography to the cerebral blood flow signal and show, and can trace preservation, AC/DC, waveform is clear, amplitude can be amplified arbitrarily, and many tracks show, and are stable and reliable for performance.Can make things convenient for and be used for the real-time monitoring of cerebral blood flow effectively, make things convenient for the diagnoses and treatment of cerebrovascular disease, having overcome existing rheoencephalograph can not on-line monitor and catch the defective of transient cerebral ischemia, has great application value.

(4) description of drawings

Fig. 1 is this utility model external structure.

Fig. 2 is electric bridge modulation circuit and high-frequency amplifier circuit.

Fig. 3 is balance indication, detection and low discharging circuit part.

Fig. 4 is the low discharging circuit part.

Fig. 5 is the record drive part.

Fig. 6,7 is oscillography amplification and pulse generation element circuit.

Fig. 8 is pulse amplification, sawtooth waveforms formation, vertical scanning and high-pressure generating circuit.

Fig. 9 is horizontal sweep and power amplifier unit circuit.

Figure 10,11 is a power circuit.

Figure 12 is the paper feed speed-stabilizing circuit.

Figure 13 is a scaling circuit.

Figure 14 is a pre-amplification circuit.

(5) specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is elaborated.

Provide by Fig. 1 to Figure 14, this utility model is to be made of housing and built-in control circuit thereof, oscillography screen 2 is arranged on the front panel of housing 1, paper storehouse 3, outlet 4 is housed on the panel lower left quarter, display lamp 5, speed selects 6, record, observe, sealing selects 7, trace switch 8 and calibration mode and select 9, interference suppression switch 10 is equipped with at following middle part, cerebral blood flow signal gain coarse adjustment 11, gain fine tuning 12, calibration resistance selects 13, balance coarse adjustment 14 and measuring point select 15, oscillography switch 16 is housed on the panel lower right section, briliancy adjusting 17 and focus adjustment 18, housing 1 inside be equipped with panel on the control circuit that is connected of each parts (above-mentioned relevant parts also can suitably be installed in other positions of housing face certainly, with neatly, attractive in appearance, easy to operate being as the criterion), control circuit is by the cerebral blood flow circuit part, the oscillography circuit part, paper feed speed-stabilizing circuit and power circuit partly constitute.The outfan of cerebral blood flow circuit part (21) joins with the input (22) of oscillography circuit part, the outfan that the power supply termination power circuit part of cerebral blood flow circuit part and oscillography circuit part divides, the power input of paper feed speed-stabilizing circuit (34) connects an elementary end of the output transformer of power circuit, and is connected with the cerebral blood flow circuit part through switch.1, cerebral blood flow circuit part

The circuit of said cerebral blood flow circuit part is to be made of electric bridge modulation circuit and high frequency amplifier section, balance index, detection and low part, record drive part, scaling block and the preposition amplifier section put, and electric bridge modulation circuit and high frequency amplifier section are through triode BG ₅₃Emitter stage joint (19) meets coupling capacitance C ₆₁, C ₆₂To balance indication, detection and the low input of putting part, balance indication, demodulator probe meet low discharging circuit input coupling capacitance C through gain-selector switch joint (20) ₇₁To audion BG ₆₃Grid hangs down and puts the part outfan by audion BG ₆₇Emitter stage connect the record drive part potentiometer W ₂₂To audion BG ₆₈Grid, the scaling block relay J ₃Output end connector (38), (37) connect the resistance R of electric bridge modulation circuit and high frequency amplifier section respectively ₁₃₈, R ₁₄₀And resistance R ₁₃₄, R ₁₃₅, R ₁₃₆, the terminals of scaling circuit (35), (36) connect the resistance R of preposition amplifier section ₃₅, R ₃₆

By shown in Figure 2, electric bridge modulation circuit and high frequency amplifier section are by audion BG ₄₅-BG ₅₃Reach auxiliary resistance, electric capacity formation, BG ₄₅Base stage on be connected to resistance R ₁₂₃, R ₁₂₄, resistance R ₁₂₃Connect 0 line, resistance R ₁₂₄Meet-12V BG ₄₅Colelctor electrode on be connected to inductance coil L ₇And capacitor C ₃₈, BG ₄₅Emitter stage on be connected to resistance R ₁₂₅And capacitor C ₃₈The other end and capacitor C ₃₇, resistance R ₁₂₅Through adjustable potentiometer W ₁₀Connect respectively-12V and capacitor C ₃₉, coil L ₇, capacitor C ₃₇The other end is respectively through capacitor C ₃₅, C ₃₆Meet+12V audion BG ₄₆The same capacitor C of base stage ₃₉, resistance R ₁₂₆, R ₁₂₇Join, and through potentiometer W ₁₁Connect-12V the same resistance R of colelctor electrode ₁₂₉With audion BG ₄₈Base stage join, emitter stage is through resistance R ₁₃₀Meet-12V audion BG ₄₇Base stage meet potentiometer W ₁₂Middle sliding end on, potentiometer W ₁₂Be connected to resistance R on two stiff ends respectively ₁₂₉, R ₁₂₈, BG ₄₇Colelctor electrode connect+12V, emitter stage is through resistance R ₁₃₁Connecting resistance R ₁₂₇, R ₁₃₂And capacitor C ₄₀, audion BG ₄₈Be connected to resistance R on the emitter stage ₁₃₂, colelctor electrode connects-12V, resistance R ₁₂₇, R ₁₃₁, R ₁₃₂In parallel through capacitor C ₄₀Connecting resistance R ₁₃₃And transformator B ₁Elementary, transformator B ₁Be connected to capacitance resistance R on the secondary end ₁₄₁, be connected to capacitor C on the other end ₄₁, again through resistance R ₁₃₇Meet parallel resistor R ₁₃₄, R ₁₃₅, R ₁₃₆, R ₁₃₈, resistance R ₁₃₈Connecting resistance R ₁₄₀, its lead end (37), (38) are with the relay switch J of scaling circuit ₃Join resistance R ₁₃₉Same capacitor C ₄₂-C ₅₁And join with K switch after connecing, be connected to resistance R, R on the switch ₁₄₂With variable resistance W ₁₃, W ₁₃Distinguish connecting resistance R again through electric capacity ₁₄₀With+12V, fet BG ₄₉Grid is through resistance R ₁₄₃With placed in-line capacitor C ₅₃Connecting resistance R ₁₄₁, R ₁₄₂, BG ₄₉Bipod is respectively through resistance R in addition ₁₄₅, potentiometer W ₁₄And by resistance R ₁₄₆, capacitor C ₅₅Connect-12V, through capacitor C ₅₂, resistance R ₁₄₄, inductance L ₁₉Meet+12V BG ₄₉Output is through capacitor C ₅₄With fet BG ₅₀Grid and resistance R ₁₄₇Join resistance R ₁₄₇Connect 0 line, BG ₅₀Bipod one foot is through series resistance R in addition ₁₄₉, R ₁₅₀Meet-12V one foot meridian capacitor C ₅₆, resistance R ₁₄₈, inductance L ₂₀Connect+12V, and through capacitor C ₅₇Connecting resistance R ₁₅₁With fet BG ₅₁, resistance R ₁₅₁Connect 0 line, BG ₅₁Bipod one foot connects+12V in addition, and another foot is through resistance R ₁₅₂Connect-12V, and through capacitor C ₅₈With fet BG ₅₂Grid joins, again through resistance R ₁₅₃, R ₁₅₄And connection-12V, fet BG ₅₂Through resistance R ₁₅₅Connect+12V, through capacitor C ₅₈Meet fet BG ₅₃Grid, and through resistance R ₁₅₈Connect 0 line, through resistance R ₁₅₆With potentiometer W ₁₅, resistance R ₁₅₇And capacitor C in parallel ₆₀Meet-12V BG ₅₃Colelctor electrode connects+12V, emitter stage connecting resistance R ₁₅₉With connect capacitor C through joint (19) ₆₁, C ₆₂, resistance R ₁₅₉Connect-12V.

By Fig. 3, shown in Figure 4, balance indication, detection and low discharging circuit partly are by fet BG ₅₄-BG ₅₉, audion BG ₆₀-BG ₆₂Constitute BG with the resistance capacitance that matches ₅₄Base stage connects capacitor C respectively through potentiometer ₆₂With 0 line, the two poles of the earth one utmost point meets inductance coil L in addition ₈,+12V, another utmost point is through parallel resistor R ₁₆₀, capacitor C ₆₃And capacitor C ₆₃Diode in series D ₉Meet inductance coil L ₉And-12V, capacitor C ₆₃With diode D ₉Common port through diode D ₁₀Meet BG ₅₅Grid is again by resistance R ₁₆₁, capacitor C ₆₄Connect 0 line, BG ₅₅, BG ₅₆, BG ₅₇, BG ₆₂One output pin all meets L ₈And+12V, BG ₅₅Another foot meets potentiometer W ₁₆, and through resistance R ₁₆₂Meet-12V potentiometer W ₁₆Middle spindle nose is through resistance R ₁₆₃And diode connected in parallel D ₁₁, resistance R ₁₆₅With with resistance R ₁₆₅The ammeter M of serial connection ₁Connect+12V capacitor C ₆₁Resistance R through serial connection ₁₆₄Same resistance R ₁₆₇, diode D ₁₃, operational amplifier IC ₄3 feet of (adopting the F076 type) join IC ₄4 feet through resistance R ₁₆₆Connect-12V, 5 feet connect-12V, and 6 feet, 2 feet are through potentiometer W ₁₇Connect-12V, be connected to capacitor C between 1 foot and 9 feet ₆₅, 8 feet connect+12V, and 7 feet are with diode D ₁₂, D ₁₃Join resistance R ₁₆₇With diode D ₁₂Male end meets BG altogether ₅₆Grid and through resistance R ₁₆₈Meet-12V BG ₅₆Through resistance R ₁₇₀Meet BG ₅₇, through resistance R ₁₆₉, capacitor C ₆₆Meet-12V BG ₅₇Grid is through capacitor C ₆₇Connect 0 line, BG ₅₇Output pin is through resistance R ₁₇₁Connect-12V, through capacitor C ₆₈Meet BG ₅₈Base stage, again through resistance R ₁₇₁Connect 0 line, BG ₅₈, BG ₅₉In parallel through potentiometer W ₁₈, resistance R ₁₇₄Meet-12V BG ₅₉Base stage is through resistance R ₁₇₃Connect 0 line, through parallel resistor R ₁₇₅, capacitor C ₇₀With potentiometer W ₁₉Join BG ₅₉Output pin meets BG ₆₁Base stage and resistance R ₁₇₅, and through capacitor C ₆₉Same BG ₅₈And BG ₆₀, resistance R ₁₇₆Join BG ₆₀, BG ₆₁Emitter stage also connects after resistance R ₁₇₇And resistance R ₁₇₆, R ₁₇₈Public termination+12V, BG ₆₁Colelctor electrode connects-12V, BG ₆₀Colelctor electrode meets BG ₆₂Base stage, and through resistance R ₁₇₉Meet-12V BG ₆₂Emitter stage is through resistance R ₁₈₀Meet-12V potentiometer W ₉, W ₁₀Serial connection is after resistance R ₁₈₁, R ₁₈₂, R ₁₈₃Connect 0 line, and through the capacitor C of gain-selector switch contact (20) with low discharging circuit ₇₁Join capacitor C ₇₁With fet BG ₆₃Grid and resistance R ₁₈₄Join resistance R ₁₈₄The same resistance R of the other end ₁₈₅, capacitor C ₇₄-C ₇₉Join BG ₆₃, BG ₆₄Through potentiometer W ₂₁And resistance R ₁₈₆Join, with audion BG ₆₆Colelctor electrode, resistance R ₁₉₁, R ₁₉₂, capacitor C ₇₅, C ₇₇, resistance R ₁₉₄Join BG ₆₄Grid is through capacitor C ₇₃, resistance R ₁₈₇Same BG ₆₇Emitter stage, resistance R ₁₉₂Common port (21) with the record drive part current potential W ₂₂Join BG ₆₄The same capacitor C of outfan ₇₂, resistance R ₁₈₈, BG ₆₅Base stage link to each other BG ₆₅Colelctor electrode connecting resistance R ₁₉₁, BG ₆₇Base stage, BG ₆₇Colelctor electrode connecting resistance R ₁₉₃, capacitor C ₇₄And resistance R ₁₈₈, R ₁₈₉, R ₁₉₀Common port.

Fig. 5 provides record drive part circuit, is by the record driver IC ₅And fet BG ₆₈And audion BG ₆₉-BG ₇₆Constitute BG with the resistance capacitance that matches ₆₈Grid meet potentiometer W ₂₂, capacitor C ₈₀Diode D with series connection ground connection ₁₄, D ₁₅, BG ₆₈The two poles of the earth one utmost point connects+12V in addition, and a utmost point is through potentiometer W ₂₃And resistance R ₂₃₀Meet IC ₅2 feet and resistance R ₂₃₁, potentiometer W ₂₃Through placed in-line resistance R ₂₂₈, R ₂₂₉Meet ground capacity C ₈₂, potentiometer W ₂₄, the same resistance R of W24 ₂₃₁The other end joins, through resistance R ₂₃₂Meet+12V IC ₅3 feet of (adopting the F004B type) are through placed in-line resistance R ₂₃₃, potentiometer W ₂₅, resistance R ₂₃₅Termination resistor R ₂₄₀, W ₂₅Through capacitor C ₈₃, resistance R ₂₃₄Ground connection, R ₂₄₀Through resistance R ₂₃₉Ground connection, and through inductance coil L ₁₀, L ₁₁Connecting resistance R ₂₄₁, R ₂₄₆, IC ₅1 foot meet ground capacity C ₈₁With-12V and resistance R ₂₃₈, IC ₅5 foot ground connection, and through resistance B ₂₃₆Meet 6 feet and diode D ₁₆, D ₁₇Common port, 7 feet connect+12V, BG ₆₉Base stage connecting resistance R ₂₃₁, D ₁₆, emitter stage is through resistance R ₂₄₃Same resistance R ₂₄₂, R ₂₄₆, R ₂₄₄Common port joins, again through R ₂₄₄Meet BG ₇₀Emitter stage, BG ₆₉Colelctor electrode through resistance R ₂₄₅Same resistance R ₂₄₈, BG ₇₁Colelctor electrode, BG ₇₃Base stage join BG ₇₀Colelctor electrode through resistance R ₂₄₇Same resistance R ₂₄₉, BG ₇₂Colelctor electrode, BG ₇₄Base stage join BG ₇₂Emitter stage connecting resistance R ₂₄₈, R ₂₅₃, BG ₇₃Emitter stage and+18V, base stage connecting resistance R ₂₅₃And BG ₇₅Colelctor electrode, BG ₇₃Colelctor electrode through resistance R ₂₅₀Same BG ₇₄Colelctor electrode join, through resistance R ₂₅₁Meet BG ₇₅Base stage, BG ₇₂The same resistance R of emitter stage ₂₄₉, resistance R ₂₅₄And-18V joins, and through the same BG of resistance ₇₄Emitter stage joins, through R ₂₅₄Same BG ₇₆Emitter stage join BG ₇₄Emitter stage is through resistance R ₂₅₂Meet BG ₇₆Base stage, BG ₇₂The same BG of base stage ₇₆Emitter stage join BG ₇₅The same BG of emitter stage ₇₆Colelctor electrode join.

Figure 13, Figure 14 provide calibration and preposition amplifier section circuit, are by audion BG ₁₄₁, BG ₁₄₂, BG ₂₆, BG ₂₇, BG ₂₈, fet BG ₂₄, BG ₂₅And amplifier IC ₁Constitute integrated input nand gate circuit YE with the resistance capacitance that matches ₁, YE ₂, YE ₃, YE ₄On be connected to capacitor C ₁₄₈Resistance R with serial connection ₃₉₆, potentiometer W ₄₈, resistance R ₃₉₇, YE ₄Output termination BG ₁₄₁Base stage, BG ₁₄₁Emitter stage meet BG ₁₄₂Base stage, BG ₁₄₁, BG ₁₄₂Colelctor electrode join the back same resistance R ₄₀₀, capacitor C ₁₅₁, C ₁₅₀Join resistance R ₄₀₀Join YE with K switch ₁Same K switch, resistance R ₃₉₈Join capacitor C ₁₅₁, C ₁₅₀Same relay J ₃Join after contact (35), (36) connecting resistance R ₃₅, R ₃₉, R ₃₆, R ₄₁, BG ₂₄, BG ₂₅Two grids between isolation capacitance C is arranged ₆, BG ₂₄Same resistance R ₄₅And IC ₁3 feet of (adopting the F012B type) join BG ₂₄Resistance R through serial connection ₃₃, potentiometer W ₁, resistance R ₃₄Meet BG ₂₅, BG ₂₄On be connected to resistance R ₃₈, and through resistance R ₃₈Meet IC ₁7 feet, BG ₂₅Warp and the resistance R that connects ₃₆, R ₃₇Respectively by resistance R ₄₁Connecting resistance R ₄₃, potentiometer W ₂With potentiometer W ₃, through W ₃Connect capacitor C ₉, C ₁₃, BG ₂₅Connecting resistance R ₄₆And IC ₁4 feet, BG ₂₆Emitter stage is with being serially connected with capacitor C between base stage ₇, be connected to resistance R on the base stage ₄₄, R ₄₅, R ₄₆, colelctor electrode meets potentiometer W ₁, resistance R ₄₀, and through R ₄₀Connecting resistance R ₄₃, IC ₁8 feet and resistance R ₅₁, capacitor C ₁₅, inductance L ₂, resistance R ₃₉, R ₄₂With potentiometer W ₂And meet R ₄₂Meet IC ₁5 feet and through resistance R ₄₇Connect 6 feet, and same resistance R ₅₀, capacitor C ₁₄, inductance L ₁Join IC ₁9 feet, 0 foot between capacitor C is arranged ₈, its 7 foot is through resistance R ₄₈Connecting resistance R ₄₉, R ₅₂, capacitor C ₁₃And BG ₂₇, BG ₂₈Emitter stage, BG ₂₇, BG ₂₈Base stage is joined, and same capacitor C ₉, C ₁₀, C ₁₁, resistance R ₄₉Join ,-12V and+be connected to capacitor C between the 12V line ₁₄, C ₁₅, resistance R ₅₂Be serially connected with capacitor C ₁₂

The working condition of foregoing circuit is that high-frequency signal is through audion BG ₅₃Emitter stage exports coupling capacitance C to ₆₁, C ₆₂, low frequency signal through gain-selector switch to audion BG ₆₃Grid is put by audion GB through low ₆₇Emitter stage export audion BG to ₆₈Grid, audion BG ₄₅To BG ₄₈Constitute high-frequency agitation source, the sine wave of oscillation source output 75KHXZ, as the common bridge power supply of AC bridge, AC bridge has four brachium pontis, and tested body is connected to a certain brachium pontis and connects balance coarse adjustment (capacitor C at another brachium pontis ₄₂To C ₅₁Select size by K switch) and balance fine tuning resistance W ₁₃, the impedance of surveying body when vent in the sides of a garment is beaten with blood flow and when changing, then the poised state of electric bridge goes to pot and produces certain output.The rheography calibration has third gear, all utilizes the variation arm resistance to realize; When work, what the electric bridge outfan obtained is an adjustable wave amplitude, and its modulating frequency is for the body impedance variation, and carrier wave is 75KHZ, and electric bridge exports to by audion BG ₄₉To BG ₅₃The high frequency amplifier that the low noise field effect transistor is formed obtains the gain of nearly 30db, audion BG ₅₄To BG ₅₅Constituting the balance indicating circuit, is by after high frequency ac signal is rectified into DC voltage, by ammeter M ₁Make indication, IC ₄Adopt F076 high speed high input impedance operational amplifier, it and diode D ₁₂And D ₁₃Form linear rectification circuit together, positive half cycle signal obtains output, by resistance R ₁₇₀, capacitor C ₆₆, C ₇₇Form the RC wave filter, the high frequency composition in the filtered signal is through capacitor C ₆₈Be coupled to audion BG ₅₈To BG ₆₂The low discharging circuit of forming, gaining is 19db, audion BG ₆₃To BG ₆₇Formation is with the low discharging grade of prime; Scaling circuit can be used to check the duty with masking amplifier, YE ₁To YE ₄Be a CNOS integrated circuit (one 42 input nand gate circuit), form multivibrator, produce the symmetric substantially square wave of positive-negative half-cycle, promote the calibration relay J through emitter follower with peripheral components ₃Action, but the scaling circuit auto-scaling also can manually calibrate, K switch upwards is auto-scaling.2, oscillography circuit part

The oscillography circuit part by oscillography amplification and pulse generation element circuit, pulse amplification, sawtooth waveforms form, vertical scanning and high-pressure generating circuit, horizontal sweep and power amplifier unit circuit constitute, the audion BG that input (23) connects the low discharging circuit part is amplified in pulse ₆₇Emitter stage, oscillography amplification and pulse generation element circuit are by diode D ₂₁, D ₂₅Connect sawtooth waveforms and form circuit input end (25), (27), through outfan audion BG ₈₀Meet the input pickup resistance R of oscillography amplification and pulse generation element circuit ₃₀₃, through audion D ₃₂, capacitor C ₁₂₀The same resistance R of the input of water receiving simple scan and power amplifier unit circuit ₃₄₀Placed in-line coil connectors (29).

Fig. 6, Fig. 7 provide the concrete oscillography amplification and the detailed structure of pulse generation element circuit, audion BG ₈₄Base stage connecting resistance R ₅₅, through potentiometer and diode in series D ₁₈, D ₁₉Ground connection, the two poles of the earth one utmost point meets audion BG in addition ₈₅Base stage, and through resistance R ₂₅₆Connecting resistance R ₂₅₈, R ₂₆₀, another utmost point meets audion BG ₈₅, BG ₈₇, BG ₈₉Colelctor electrode, and through resistance R ₂₅₉Respectively with audion BG ₈₆Colelctor electrode, audion BG ₈₇Base stage, capacitor C ₈₄Join audion BG ₈₅Emitter stage on be connected to resistance R ₂₅₇, audion BG ₈₆Be connected to resistance R on the emitter stage ₂₆₀, BG ₈₆Base stage is through potentiometer R ₂₆₂Connecting resistance R ₂₆₁, R ₂₆₃, and through placed in-line resistance R ₂₆₄Connecting resistance R ₂₅₈, R ₂₆₅, R ₂₇₇And electric capacity, audion BG ₈₇Emitter stage connecting resistance R ₂₆₅, R ₂₆₆, through R ₂₆₆Meet audion BG ₈₈Base stage and resistance R ₂₆₇, BG ₈₈Emitter stage connecting resistance R ₂₆₉, R ₂₇₁, and through R ₂₆₉Meet audion BG ₉₃Colelctor electrode, through resistance R ₂₇₁Meet audion BG ₈₉Emitter stage, BG ₈₈Colelctor electrode on be connected to resistance R ₂₇₀, capacitor C ₈₅, through capacitor C 85 connecting resistance R ₂₇₃And audion BG ₈₉Base stage, audion BG ₉₃Emitter stage connecting resistance R ₂₇₂, R ₂₆₇, BG ₉₃Base stage through capacitor C ₈₇Connecting resistance R ₂₇₇With audion BG ₉₂Emitter stage, BG ₉₂Colelctor electrode connecting resistance R ₂₇₅, R ₂₇₂, base stage connecting resistance R ₂₇₈To audion BG ₈₀Emitter stage, BG ₉₂Emitter stage connect capacitor C ₈₇, resistance R ₂₇₇, audion BG ₉₀Base stage connect capacitor C ₈₆, resistance R ₂₇₆, colelctor electrode meets transformator B ₂Elementary, emitter stage meets transformator B ₂Secondary, and through resistance R ₂₇₉, capacitor C ₈₈Ground connection, audion BG ₉₁Base stage connects with transformator B ₂The secondary potentiometer W that joins ₂₆Middle spindle nose, emitter stage meets diode D ₂₁, earth resistance R ₂₈₀, colelctor electrode meets B ₂Elementary and capacitor C ₉₀, and through capacitor C ₈₉Connect+12V, with input pickup resistance R ₂₈₁Join, be connected to the audion D of series connection ground connection on the transistor base ₂₃, D ₂₂, the two poles of the earth one are extremely with audion BG in addition ₉₄Base stage and resistance R ₂₈₂Join, another is extremely with audion BG ₉₄, BG ₉₆, BG ₉₈,+12V joins, BG ₉₄Be connected to resistance R on the emitter stage ₂₈₃, through R ₂₈₃Same resistance R ₂₈₄, R ₂₈₆Join audion BG ₉₅The same resistance R of emitter stage ₂₈₆Join the same resistance R of colelctor electrode ₂₈₅, capacitor C ₉₁, audion BG ₉₆Base stage is joined, and the BG95 base stage is through potentiometer R ₂₈₈Connecting resistance R ₂₈₇, and through potentiometer W ₂₇, resistance R ₂₈₉Connecting resistance R ₃₀₂And ground capacity, BG ₉₆Emitter stage is respectively through resistance R ₂₉₄Meet audion BG ₁₀₂Colelctor electrode, through resistance R ₂₉₆Meet audion BG ₉₈, BG ₉₇Colelctor electrode connecting resistance R ₂₉₃, R ₂₉₅And capacitor C ₉₂, BG ₉₈Base stage connects capacitor C ₉₂, resistance R ₂₉₅, colelctor electrode is through capacitor C ₉₃Connecting resistance R ₃₀₁And audion BG ₉₉Base stage, BG ₉₉Colelctor electrode meets transformator B ₃Elementary, emitter stage meets B ₃Secondary, again through capacitor C ₉₅, resistance R ₃₀₄Ground connection, BG ₁₀₂Emitter stage connecting resistance R ₂₉₇, R ₂₉₂, and with placed in-line resistance R ₃₀₀, R ₂₉₉, R ₂₉₈And audion BG ₁₀₁Colelctor electrode join BG ₁₀₂Base stage is through capacitor C ₉₄Connecting resistance R ₃₀₂And BG ₁₀₁Emitter stage, BG ₁₀₁Base stage is through resistance R ₃₀₃Meet audion BG ₈₀Emitter stage, audion BG ₁₀₀Base stage meets transformator B ₃Secondary potentiometer W ₂, emitter stage meets audion D ₂₅, resistance R ₃₀₅, colelctor electrode meets B ₃Elementary, through capacitor C ₉₇, C ₉₆Connect+12V;

By Fig. 8 provide that pulse amplification, sawtooth waveforms form, the detailed structure of vertical scanning and high-pressure generating circuit, audion BG ₇₇Base stage connecting resistance R ₁₉₅, R ₁₉₆,+12V is with being connected to capacitor C between ground (0V) ₉₈, emitter stage is through resistance R ₁₉₇Connect 0V and capacitor C ₉₉, and through capacitor C ₁₀₀Meet audion BG ₇₈Base stage, BG ₇₇The colelctor electrode coils connects+12V, and through resistance R ₂₀₆Meet audion BG ₈₀Colelctor electrode, BG ₇₈Emitter stage through resistance R ₂₀₁Meet 0V, colelctor electrode is through inductance L ₁₂Connecting resistance R ₂₀₀, R ₁₉₈, R ₂₀₄, capacitor C ₁₀₁, BG ₇₈Emitter stage is through resistance R ₂₀₁Connect 0V, capacitor C ₁₀₁, C ₁₀₂, resistance R ₂₀₃, R ₂₀₇And BG ₇₉Emitter stage, and through resistance R ₂₀₇Meet audion BG ₈₀, BG ₇₉Base stage connecting resistance R ₂₀₃, R ₂₀₂, through R ₂₀₂, capacitor C, C ₁₁₃Ground connection, BG ₇₉Colelctor electrode meets BG ₈₀Base stage and resistance R ₂₀₄, capacitor C ₁₀₃, again through resistance R ₂₀₅Be connected to-12V BG ₈₀Colelctor electrode is through resistance R ₂₀₆Connect capacitor C ₉₈, resistance R ₁₉₈, R ₂₀₀Coil and capacitor C through serial connection ₁₁₈Ground connection, warp and the diode D that connects ₂₉Connecting resistance R ₂₁₉, meet transformator B again ₅And diode D ₂₈, BG ₈₀Emitter stage is through resistance R ₂₀₇Connect the 0V line, triode BG ₈₁Base stage connects capacitor C ₁₀₈, resistance R ₂₁₁, through R ₂₁₁Meet parallel resistor R ₂₀₆, capacitor C ₁₀₅, capacitor C ₁₀₅, C ₁₀₆And connection capacitor C ₁₀₄, resistance R ₂₀₉, inductance L ₁₃, resistance R ₂₁₆, R ₂₁₅, BG ₈₁Emitter stage meets parallel resistor R ₂₁₂, capacitor C ₁₀₇, colelctor electrode is through resistance R ₂₁₃Connect capacitor C ₁₀₉, resistance R ₂₁₄And audion BG ₈₂Base stage, BG ₈₂Grounded emitter line, colelctor electrode meet transformator B ₄And the capacitor C of ground connection in parallel ₁₁₀And series resistance R ₂₁₇, capacitor C ₁₁₁, audion BG ₈₃Base stage is through resistance R ₂₁₈Meet transformator B ₄, grounded emitter, colelctor electrode connects capacitor C ₁₁₄, C ₁₁₅, C ₁₁₆And transformator B ₅, C ₁₁₅, C ₁₁₆Coils L in parallel ₁₅, L ₁₆Ground connection, transformator B ₅Be connected to diode D in the secondary tap respectively ₂₇, D ₂₆, D ₂₇, D ₂₈Through capacitor C ₁₁₇Ground connection, coils L ₁₄Meet+12V transformator B ₅Secondary through resistance R ₂₂₀, diode D ₃₀Connecting resistance R ₂₂₂And placed in-line capacitor C ₁₁₉, C ₁₂₀, diode D ₃₂, resistance R ₂₂₁, D ₃₂And C ₁₂₀Common port (29) water receiving simple scan and the coil resistance R of power amplifier unit circuit ₃₄₀To audion BG ₁₁₁, resistance R ₂₂₂Connecting resistance R ₂₂₃, R ₂₂₅, through R ₂₂₃Meet potentiometer W ₃₀, through resistance R ₂₂₅Meet ground capacity C ₁₂₁, resistance R ₂₂₈, through resistance R ₂₂₇Ground connection, capacitor C ₁₂₁, resistance R ₄₂₂Ground connection;

Fig. 9 provides the concrete detailed structure of horizontal sweep and power amplifier unit circuit, amplifier IC ₆The 2 foot connecting resistance R of (adopting the F007B type) ₃₀₆, capacitor C ₁₂₅And audion BG ₁₀₄Emitter stage, 3 feet meet potentiometer W ₃₁, 4 feet connect common wire, 6 foot connecting resistance R ₃₀₉And potentiometer is to resistance R ₃₁₃, audion BG ₁₀₃Emitter stage connecting resistance R ₃₀₉, colelctor electrode connecting resistance R ₃₁₀And audion BG ₁₀₄Base stage, BG ₁₀₃Base stage meets BG ₁₀₄Colelctor electrode, and through resistance R ₃₁₁Meet potentiometer W ₃₃, through capacitor C ₁₂₄Meet diode D ₃₈And resistance R ₃₃₅, audion BG ₁₀₅Base stage connecting resistance R ₃₁₅, R ₃₁₃, R ₃₁₄, colelctor electrode connecting resistance R ₃₁₆, R ₃₁₇, through R ₃₁₇Meet audion BG ₁₀₆Base stage and diode D ₃₃, D ₃₄, through diode D ₃₃, potentiometer W ₃₄, W ₃₆Meet IC ₆7 feet, through diode D ₃₄, potentiometer W ₃₅, W ₃₇Connecting resistance R ₃₁₈, IC ₇4 feet, BG ₁₀₆Emitter stage connecting resistance R ₃₁₈, R ₃₂₂, through R ₃₂₂Connect the amplifier IC ₇3 feet of (adopting the F007B type), IC ₇2 foot connecting resistance R ₃₂₁, resistance R ₃₂₃, 4 foot connecting resistance R ₃₂₅, R ₃₂₀, R ₃₁₈, R ₃₁₅, R ₃₁₀, R ₃₀₈, R ₃₃₁, 6 foot connecting resistance R ₃₂₃And diode D ₃₇, D ₃₆, 7 foot connecting resistance R ₃₂₄, R ₃₁₉, IC ₆7 feet and audion BG ₁₀₇Colelctor electrode, BG ₁₀₇Base stage connects electric capacity and resistance R ₃₂₄, diode D ₃₅, audion BG ₁₀₈Base stage connects capacitor C ₁₂₆, resistance R ₃₂₅, diode D ₃₇, BG ₁₀₇Emitter stage connecting resistance R ₃₂₆, R ₃₂₅, through R ₃₂₆Connecting resistance R ₃₃₀And resistance R ₃₂₇, meet BG again ₁₀₈Emitter stage, BG ₁₀₈Colelctor electrode connecting resistance R ₃₂₉, capacitor C ₁₂₆, and through the same resistance R of resistance ₃₃₁, R ₃₂₅Common port links to each other, audion BG ₁₁₃Base stage connecting resistance R ₃₃₄, resistance R ₃₃₆, through R ₃₃₆Connecting resistance R ₃₃₇, R ₃₃₈With audion BG ₁₁₂Colelctor electrode joins, audion BG ₁₁₃, BG ₁₁₂, BG ₁₁₁Grounded emitter, BG ₁₁₃Colelctor electrode connecting resistance R ₃₃₂, through electric capacity connecting resistance R ₃₃₃, diode D ₃₈And BG ₁₁₂Base stage, BG ₁₁₁Base stage connecting resistance R ₃₃₈, R ₃₃₉, again through R ₃₃₉Connect-12V.

The working condition of this part circuit is that the pulse amplification exports audion BG to ₆₇Emitter stage, the intensification modulation pulse that oscillography amplification and pulse generation unit produce is by diode D ₂₁, D ₂₅Export that sawtooth waveforms forms circuit or door (be in the circuit shown in Figure 8 or door) to, sawtooth waveforms is through audion BG ₈₀Emitter stage exports audion BG to ₉₂, BG ₁₀₁Base stage, the low pressure of-80V adds to diode D ₃₂, transport to audion BG again ₁₁₁Colelctor electrode; Oscillography amplification and pulse generation unit also are signal, pulse conversion circuit, fet BG ₈₄As source follower, improve input impedance, stabilivolt D ₁₈And D ₁₉Shield audion BG ₈₅And BG ₈₆Form asymmetric differential amplifier, through audion BG ₈₆Colelctor electrode directly is coupled and gives audion BG ₈₇Base stage output, resistance R ₂₆₂Be the displacement potentiometer, change be DC level, just change the triggering level of Shi Mite comparator, change the width of output wave, the sawtooth waveforms of 16KHZ is through isolating audion BG ₉₂And BG ₉₃Add to audion BG ₈₈And BG ₈₉The trigger of forming compares, at audion BG ₈₉Colelctor electrode take out the square type ripple that width changes with signal, behind peaker, positive pulse is to by audion BG ₉₀The separate-excited block oscillator of forming Deng element triggers, at pulse transformer B ₂Secondary obtaining and elementary opposite forward ns burst pulse, then through emitter follower audion BG ₉₁Transport to pulse amplifier with OR circuit, potentiometer W ₂₆It is the concordance of transferring single channel pulse brightness.The intensification modulation pulse is through audion BG ₇₇Emitter stage output is through capacitor C ₁₀₀Add to high countervoltage triode BG ₇₈Carry out pulse and amplify, about tens negative pulse is added to the image reproducer cathode and carries out intensification modulation, the vertical scanning pulse of 16KHZ through capacitor-coupled to audion BG ₇₉Base stage, BG at ordinary times ₇₉End, power supply is through resistance R ₂₀₄, R ₂₀₅, capacitor C ₁₀3 constitute the loop, to capacitor C ₁₀₃Charging, this sawtooth waveforms is through audion BG ₈₀Relatively usefulness of Shi Mite circuit is made in output, and vertical scanning and high-voltage generating unit are by transistor BG ₈₁And element is formed bootstrapping inductance connecting three point type, frequency of oscillation 16KHZ, audion BG on every side ₈₂With transformator B ₄Form vertical scanning and promote circuit, vertical deflection circuit is by output triode BG ₈₃, diode D ₂₆, D ₂₇, capacitor C ₁₁₃, C ₁₁₄, C ₁₁₅, C ₁₁₆, inductance L ₁₅, L ₁₆Form, wherein D ₂₆Be damper diode, D ₂₇Be that voltage promotes diode, C ₁₁₃And C ₁₁₄Be the flyback resonant capacitance, L ₁₅Be the linearity correction inductance, C ₁₁₅, C ₁₁₆Be stopping direct current serpentine corrective capacity, L ₁₆Be to compile switch coil, utilize the flyback of straight scanning to produce high back-pressure, through high-tension transformer B ₅Boost, through diode D ₃₁Rectification obtains the 15000V high pressure and is used for intensifying ring, through diode D ₃₀Rectification gets+and 400V is used for focusing on the electrode G of briliancy and image reproducer ₂, at the colelctor electrode of scanning output through diode D ₂₉Rectification gets+and 100V does pulse and amplifies power supply, through diode D ₃₂Rectification gets-80V voltage, by the amplifier IC ₆And capacitor C ₁₂₃, resistance R ₃₀₆To R ₃₀₈, adjustable resistance W31, W ₃₂Constitute the forward Miller integrator, produce sawtooth waveforms and be subjected to audion BG ₁₀₃, BG ₁₀₄The control of the PHPN ring oscillator that constitutes, W ₃₁Be the adjusting of sweep starting point, W ₃₂Be the scanning speed fine setting, W ₃₃Be the adjusting of end of scan point, audion BG ₁₁₁-BG ₁₁₃Form blanking circuit, when scanning for compensated linear, what show on image reproducer is non-linear, and circuit is provided with the nonlinear compensation of serpentine, audion BG ₁₀₅And BG ₁₀₆Be that the two-stage emitter follower is isolated potentiometer W ₃₆, W ₃₇Be to regulate the compensation starting point, export through emitter follower, be added to the amplifier IC through the scanning ripple of nonlinear compensation ₇In-phase input end, through the driving power amplifier, by triode BG ₁₀₇-BG ₁₁₀, diode D ₃₅-D ₃₂, resistance R ₃₂₄-R ₃₃₁Constitute complementary single-ended output amplifier.

3, power circuit: this circuit is to adopt AC/DC, by IC by shown in Figure 10,11 ₈To IC ₁₂, audion BG ₁₁₄To BG ₁₃₄, diode rectifier D ₆₄To D ₆₇, diode D ₃₉To D ₅₇, D ₈₆, resistance R ₃₄₁To R ₃₈₃, adjustable resistance W ₃₉To W ₄₅, capacitor C ₁₃₀To C ₁₄₄With transformator B ₆, B ₇Constitute transformator B ₇Outfan (30), (31), (32), (33) meet full wave rectifier D64, D ₆₇Input, IC ₈Be four adjustable end manostat, by diode D ₃₉Meet rechargeable battery E and, meet IC for its charging ₈Adjustable resistance W ₃₉, capacitor C ₁₂₇Outfan is connecting resistance R respectively ₃₄₂And IC ₈1 foot, battery E and audion BG ₁₁₇Emitter stage, full wave rectifier diode D ₆₅, manostat IC ₁₀(integrated package) and audion BG ₁₁₈Form the 12V mu balanced circuit, by with transformator B ₇The diode D that joins ₆₈Connect the terminals (34) of paper feed speed-stabilizing circuit.

The particular circuit configurations that is provided by Figure 10, Figure 11 is transformator B ₆The elementary alternating current 220V power supply that connects, the secondary commutator D that connects ₆₄, D ₆₅, D ₆₄Output stage meets manostat IC ₈2 feet and the capacitor C of (using the A78MG01C type) ₁₃₀, IC ₈3 foot connecting resistance R ₃₄₁, diode D ₃₉, capacitor C ₁₂₇, and through D ₃₉Meet rechargeable battery E, IC ₈1 foot meet battery E and D ₆₄, D ₆₅Common port, IC ₈4 feet meet potentiometer W ₃₉, through resistance R ₃₄₂Connect common port, D ₃₉Same relay J ₂Link to each other audion BG ₁₁₄Base stage connecting resistance R ₃₄₇, diode D ₄₁, emitter stage is succeeded electrical equipment J ₂, diode D ₄₂, collector connecting transistor BG ₁₁₅Colelctor electrode, comparison IC ₉7 feet of (adopting the PC15IC type), resistance R ₃₅₀, diode D ₄₂, resistance R ₃₅₂, R ₃₅₆, BG ₁₁₅Emitter stage connecting resistance R ₃₄₇, base stage is through resistance R ₃₄₈Meet IC ₉6 feet and resistance R ₃₄₉, R ₃₅₁, IC ₉3 foot connecting resistance R ₃₄₉, R ₃₅₃, R ₃₅₅, capacitor C ₁₂₉, diode D ₄₄, IC ₉2 foot connecting resistance R ₃₅₀, diode D ₄₂, D ₄₃, capacitor C ₁₂₈, audion BG ₁₁₆Base stage connecting resistance R ₃₅₁, colelctor electrode connecting resistance R ₃₅₄With audion BG ₁₁₇Base stage, emitter stage connecting resistance R ₃₅₂, audion BG ₁₁₇Colelctor electrode connecting resistance R ₃₅₃, audion BG ₁₁₈Colelctor electrode meets manostat IC ₁₀8 feet, base stage meets manostat IC ₁₀(adopting the A723AC type), emitter stage meets IC ₁₀12 feet and resistance R ₃₄₃, IC ₁₀1 foot connecting resistance R ₃₄₃, resistance R ₃₄₅, capacitor C ₁₃₅With diode D ₄₇Common end, IC ₁₀4 foot meridian capacitor C ₁₃₆Meet 2 feet and potentiometer W ₄₁, W ₄₁Connecting resistance R ₃₄₅, R ₃₄₄, audion BG ₁₁₉Colelctor electrode meet diode D ₄₆, D ₄₇, resistance R ₃₄₆, base stage connecting resistance R ₃₄₆, diode D ₄₈Common end, emitter stage is succeeded electrical equipment J ₁And diode D ₄₉, triode BG ₁₂₀Base stage connecting resistance R ₃₅₈And capacitor C ₁₃₃, meet transformator B again ₇Elementary, colelctor electrode meets B ₇Elementary, emitter stage meets audion BG ₁₂₁Emitter stage, BG ₁₂₁Base stage connecting resistance R ₃₅₉, capacitor C ₁₃₄, colelctor electrode meets B ₇Elementary, elementary through capacitor C ₁₃₂Ground connection, B ₇Meet commutator D through secondary joint (30), (31), (32), (33) ₆₆, D ₆₇Input, audion BG ₁₂₂Base stage connecting resistance R ₃₆₀Diode in series D ₅₁, D ₅₀, meet D again ₆₆, capacitor C ₁₃₇, resistance R ₃₆₁, R ₃₆₄, R ₃₆₈, R ₃₇₀And capacitor C ₁₄₀, diode D ₅₄, rectifying pressurizer IC ₁₁7 feet of (adopting the F007B type), BG ₁₂₂Emitter stage connecting resistance R ₁₃₆, audion BG ₁₂₃Emitter stage, BG ₁₂₂Colelctor electrode through resistance R ₃₆₂Meet audion BG ₁₄₁Base stage, audion BG ₁₄₁Emitter stage meet D ₆₆Outfan and resistance R ₃₆₀, capacitor C ₁₃₇, colelctor electrode meets IC ₁₁4 feet, 2 feet, D ₅₄, resistance R ₃₆₅, R ₃₆₉, R ₃₇₁, capacitor C ₁₃₈, C ₁₃₉, C ₁₄₀, and through capacitor C ₁₃₉Meet audion BG ₁₂₄Base stage, through resistance R ₃₆₉Meet audion BG ₁₂₅, BG ₁₂₆Emitter stage, three grades of utmost point pipe BG ₁₂₃Colelctor electrode connecting resistance R ₃₆₃, base stage meets IC through resistance ₁₁6 feet, IC ₁₁5 feet through potentiometer connecting resistance R respectively ₃₆₄, resistance R ₃₆₅, audion BG ₁₂₄Colelctor electrode is through electric R ₃₆₆Meet+18V BG ₁₂₄Emitter stage meet audion BG ₁₂₇Base stage, audion BG ₁₂₅Base stage meet diode D ₅₅And through resistance R ₃₆₇Meet+12V and colelctor electrode BG ₁₂₆Colelctor electrode is through resistance R ₃₆₈Meet+18V triode BG ₁₂₇Emitter stage connect+12V, colelctor electrode connects+18V; By commutator D ₆₇And audion BG ₁₂₈To BG ₁₃₃, manostat IC ₁₂The power circuit that constitutes, its structure are with above-mentioned power circuit, and just its output voltage returns mutually with aforementioned, so specifically describe slightly.

This part circuit operation is to adopt AC/DC, IC ₈Be four adjustable end manostat, by diode D ₃₉Meet rechargeable battery E and, meet IC for its charging ₈Adjustable resistance W ₃₉, capacitor C ₁₂₇The output voltage height is to control chargeable battery not by overcharge, full wave rectifier D ₆₅, manostat IC ₁₀(integrated package) and audion BG ₁₁₈Form the 12V mu balanced circuit, by with transformator B ₇The diode D that joins ₆₈Give the terminals (21) of paper feed speed-stabilizing circuit, i.e. capacitor C ₁₄₆With audion BG ₁₄₀Colelctor electrode, audion BG ₁₁₉Constitute the Control of Voltage detector, when alternating current power supply was connected, it drove relay J ₁Action, comparison circuit is by audion BG ₁₁₄To BG ₁₁₇And IC ₉Form, be used for controlling charge in batteries, translation circuit is by audion BG ₁₂₀, BG ₁₂₁And the mu balanced circuit among Figure 11 is formed audion BG ₁₂₀, BG ₁₂₁, transformator B ₇Capacitor C ₁₃₁-C ₁₃₄Form a self-oscillatory square-wave voltage generator, through transformator B ₇After can get each grade alternating voltage, again through diode rectifier D ₆₆, IC ₁₁Rectifying and voltage-stabilizing and each grade DC voltage.

4, paper feed speed-stabilizing circuit: being provided by Figure 12, is by audion BG ₁₃₅To BG ₁₄₀, diode D ₅₈To D ₆₀, resistance R ₃₈₄To R ₃₉₆, adjustable resistance W ₄₆, W ₄₇, capacitor C ₁₄₅, C ₁₄₆, C ₁₄₇And K switch ₀Constitute audion BG ₁₃₅Base stage meet diode in series D ₅₉, D ₆₀, resistance R ₃₈₅, emitter stage is through resistance R ₃₈₉Meet diode D ₆₀, resistance R ₃₉₂, R ₃₄₄, R ₃₉₅, R ₃₉₆And colelctor electrode, the audion BG of audion BG136 ₁₄₀Emitter stage, BG ₁₃₅Colelctor electrode meet diode in series D ₆₁, D ₆₂, resistance R ₃₉₀, resistance R ₃₈₇Two ends connect respectively and diode and D ₆₁, resistance R ₃₈₆, potentiometer W ₄₇, W ₄₆, capacitor C ₁₄₅, potentiometer W ₄₆Meet diode D ₅₈, capacitor C ₁₄₅, resistance R ₃₈₄And K switch ₀, K switch ₀Meet audion BG ₁₃₆Base stage, BG ₁₃₆Emitter stage meet audion BG ₁₃₇Emitter stage and resistance R ₃₉₃, BG ₁₃₇Base stage connecting resistance R ₃₈₈, R ₃₉₀And through capacitor C ₁₄₇, resistance R 391 meets colelctor electrode and K switch, audion BG ₁₃₉Base stage, audion BG ₁₃₈Colelctor electrode, audion BG ₁₃₈Grounded emitter and resistance R ₃₉₅, R ₃₉₆, audion BG ₁₃₉Colelctor electrode connects capacitor C ₁₄₆, three utmost point BG ₁₄₀Colelctor electrode meets the transformator B of power circuit through ammeter M ₇And be connected to J through resistance ₁, J ₂Its circuit can be used to control motor (motor) stabilization of speed, W ₄₆, W ₄₇Be that rotating speed is adjusted potentiometer, the record K switch is controlled stopping and motion of motor (motor), when switch is in 2,3 positions, and audion BG ₁₃₉Base earth, audion BG ₁₄₀Opened a way, motor does not turn round, when switch is in 1 position, and motor operation, when power supply was stablized, motor operation was stable, when the supply voltage of motor reduces when falling, motor speed reduces, and reduces with the co-axial electromotor G of motor electromotive force, is added in audion BG ₁₃₆Base voltage reduces, and causes audion BG ₁₃₆The emitter stage current potential raises, and also just makes audion BG ₁₃₇Collector potential raises, and makes audion BG ₁₃₉, BG ₁₄₀Conducting, internal resistance descends, and is added to the corresponding raising of voltage at motor two ends, guarantees the running of motor speed stabilizing.

Claims (4)

1, the real-time monitor of a kind of cerebral blood flow, be to constitute by housing and built-in control circuit thereof, there is oscillography screen (2) front that it is characterized in that housing (1) on extremely, paper storehouse (3), outlet (4) is housed on the panel lower left quarter, display lamp (5), speed is selected (6), record, observe, (7) are selected in sealing, trace switch (8) and calibration mode and select (9), interference suppression switch (10) is equipped with at following middle part, cerebral blood flow signal gain coarse adjustment (11), gain fine tuning (12), calibration resistance is selected (13), (15) are selected in balance coarse adjustment (14) and measuring point, oscillography switch (16) is housed on the panel lower right section, briliancy is regulated (17) and focus adjustment (18), housing (1) inside be equipped with panel on the control circuit that is connected of each parts, control circuit is by the cerebral blood flow circuit part, the oscillography circuit part, paper feed speed-stabilizing circuit and power circuit partly constitute, the outfan of cerebral blood flow circuit part (21) joins with the input (22) of oscillography circuit part, the outfan that the power supply termination power circuit part of cerebral blood flow circuit part and oscillography circuit part divides, the paper feed speed-stabilizing circuit and power input (34) connect the elementary end of the output transformer of power circuit, and be connected with the cerebral blood flow circuit part through switch.

2, the real-time monitor of cerebral blood flow according to claim 1, it is characterized in that said cerebral blood flow circuit part is that electric bridge modulation circuit and high frequency amplifier section, balance indication, detection and poor efficiency part, record drive part, scaling block and preposition amplifier section are formed, electric bridge modulation circuit and high frequency amplify social connections and divide with audion BG ₅₃Emitter stage joint (19) meets coupling capacitance C ₆₁, C ₆₂To balance indication, detection and the low input of putting part, balance indication, demodulator probe meet low discharging circuit input coupling capacitance C through gain switch joint (20) ₇₁To audion BG ₆₃Grid hangs down and puts the part outfan by audion BG ₆₇Emitter stage connect the record drive part current potential W ₂₂To audion BG ₆₈Grid, the scaling block relay J ₃The relay connector of outfan (38), (37) connect the resistance R of electric bridge modulation circuit and high frequency amplifier section respectively ₁₃₈, R ₁₄₀And resistance R ₁₃₄, R ₁₃₅, R ₁₃₆, the terminals of scaling circuit (35), (36) connect the resistance R of preposition amplifier section ₃₅, R ₃₆

3, the real-time monitor of cerebral blood flow according to claim 1, it is characterized in that said oscillography circuit part be by oscillography amplification and pulse generation element circuit, pulse amplification, sawtooth waveforms form, vertical scanning and high-pressure generating circuit, horizontal sweep and power amplifier unit circuit constitute, the audion BG that input (23) connects the low discharging circuit part is amplified in pulse ₆₇Emitter stage, oscillography amplification and pulse generation element circuit are by diode C ₂₁, connect sawtooth waveforms and form circuit input end (25) (27), through outfan audion BG ₈₀Meet the input pickup resistance R of oscillography amplification and pulse generation element circuit ₃₀₃, through audion D ₃₂, capacitor C ₁₂₀The same resistance R of the input of water receiving simple scan and power amplifier unit circuit ₃₄₀Placed in-line coil connectors (29).

4, according to claim, the real-time monitor of cerebral blood flow of institute's friendly match is characterized in that said power circuit is by IC ₈To IC ₁₂, audion BG ₁₁₄To BG ₁₃₄, diode rectifier D ₆₄To D ₆₇, diode D ₃₉To D ₅₇, D ₈₆, resistance R ₃₄₁To R ₃₈₃, adjustable resistance W ₃₉To W ₄₅, capacitor C ₁₃₀To C ₁₄₄With transformator B ₆, B ₇Constitute transformator B ₇Outfan (30), (31), (32), (33) meet full wave rectifier D ₆₄, D ₆₇Input, IC ₈Be four adjustable end manostat, by diode C ₃₉Meet rechargeable battery E and, meet IC for its charging ₈Adjustable resistance W ₃₉, capacitor C ₁₂₇Outfan is connecting resistance R respectively ₃₄₂And IC ₈1 foot, battery E and audion BG ₁₁₇Emitter stage, full wave rectifier diode D ₆₅, manostat IC ₁₀With audion BG ₁₁₈Form the 12V mu balanced circuit, by with transformator B ₇The diode D that joins ₆₈Connect the terminals (34) of paper feed speed-stabilizing circuit.

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