CN102353587B - Flexible winding items elastic modulus on-line detection circuit - Google Patents

Abstract

The invention relates to a flexible winding items elastic modulus on-line detection circuit. In the prior art, only off-line sampling measurement can be carried out, and the parameter in product technical data can not be found. The on-line detection circuit comprises a speed pulse signal conversion circuit and an elastic modulus operation circuit, the speed pulse signal conversion circuit comprises a connecting piece, a pulse signal 1 input terminal FV1 terminal of the connecting piece is connected with one end of an in input resistance, the other end of the in input resistance is connected with an input terminal I terminal of a lower Schmidt chip, an input terminal 0 terminal of a lower Schmidt chip is connected with one end of lower differential capacitance, the other end of the lower differential capacitance is connected with an input terminal IN terminal of a lower F/V chip, an input terminal OUT terminal of the lower F/V chip is connected with a positive input terminal +IN terminal of a lower follower; the elastic modulus operation circuit comprises an upper multiplier, an operational amplifier, an upper and lower multiplier, an output amplifier and the like. The invention has the advantages of strong versatility, high reliability and low cost.

Description

The online soft testing circuit of flexible winding thing elastic modulus

Technical field

The invention belongs to industrial control field, relate to a kind of circuit, the online soft testing circuit of particularly a kind of flexible winding thing elastic modulus.Be applicable to the occasion that requires online detection flexible winding thing elastic modulus parameter.

Background technology

The flexible winding thing is the general designation such as all kinds of flexible strips such as plastic sheeting, flexible packing material, yarn fabric, paper product, adhesive tape, film, flexible cable, flexible wire.Elastic modulus is one of important parameter that characterizes flexible winding thing physical property, and in process of production, the elastic modulus of flexible winding thing has material impact to parameters such as the operation conditions of coiling thing material and tension force.To the measurement of flexible winding thing elastic modulus, be commonly used in the sampling off-line measurement method of carrying out in the laboratory at present, that is: under static state to the coiling thing material application of force, through measuring the amount of tension and application of force size, through calculating the data that obtain the thing elastic modulus.The subject matter that exists is: can only the off-line sampling measurement, and from the flexible winding produce article technical data of present production usefulness, can't find this parameter, this causes very big blindness to working out rational processing parameter and production operation etc.

Summary of the invention

The objective of the invention is for overcoming the deficiency that prior art exists; In flexible winding thing production line; Utilize existing speed sensor signal and tension pick-up signal on the forward and backward two driving shaft motors in each productive unit; Proposition is carried out computing based on the signal and the tension signal of diaxon relative linear velocity difference, realizes the online online soft testing circuit of a kind of flexible winding thing elastic modulus that obtains the elastic modulus parameter.

The present invention includes speed pulse signal translation circuit and elastic modulus computing circuit.

The speed pulse signal translation circuit comprises web member CN1; The tension signal input end UT end of CN1 is connected with the end of left input resistance R0; The pulse signal 1 input end FV1 end of CN1 is connected with the end of middle input resistance R1; The pulse signal 2 input end FV2 end of CN1 is connected with the end of right input resistance R2; The ground end GND end ground connection of CN1, the signal output part OUT end of CN1 is connected with the end of the output terminal OUT end of output amplifier IC10, gain potentiometer RP3, and the positive supply input end of CN1+V end is connected with positive input terminal+IN end of power module PM1; The negative supply input end of CN1-V end is connected with negative input end-IN end of power module PM1; The positive output end of power module PM1+V end is connected with the anode of last electrolysis capacitor C 3, an end of going up high frequency capacitance C5, VCC end, the negative terminal of last electrolysis capacitor C 3, the other end ground connection of going up high frequency capacitance C5, and the negative output terminal of power module PM1-V holds with the negative terminal of following electrochemical capacitor C4, an end, the VSS end of high frequency capacitance C6 are connected down; The other end ground connection of the anode of following electrochemical capacitor C4, following high frequency capacitance C6, the ground end GND end ground connection of power module PM1.

The input end I end of last Schmidt's chip IC 1 is connected with the end of the other end of right input resistance R2, right input capacitance C1; The other end ground connection of right input capacitance C1, the power end of last Schmidt's chip IC 1+V termination VCC end, the ground end GND end ground connection of last Schmidt's chip IC 1; Output terminal 0 end of last Schmidt's chip IC 1 is connected with an end of codifferential capacitor C 7; One end of the other end of codifferential capacitor C 7 and codifferential resistance R 3, the input end IN end of going up F/V chip IC 3 are connected, another termination VCC end of codifferential resistance R 3, last F/V chip IC 3 hold relatively that CO holds with the end of upper limit piezoresistance R4, upward the end of comparison resistance R5 is connected; Another termination VCC end of upper limit piezoresistance R4; The other end ground connection of last comparison resistance R5, the reference edge REF end of last F/V chip IC 3 is connected with the end of last reference resistance R6, and the other end of last reference resistance R6 is connected with the end of last reference potential device RP1; The other end of last reference potential device RP1 and center-side ground connection thereof; The power end of last F/V chip IC 3+V termination VCC holds, and the earth terminal GND end of last F/V chip IC 3 and logical end LO end ground connection, the timing end RC of last F/V chip IC 3 are held with the end of last timing resistor R7, upward the end of timing capacitor C8 is connected; Another termination VCC end of last timing resistor R7; The other end ground connection of last timing capacitor C8, the output terminal OUT of last F/V chip IC 3 holds with the end of the end of last pull-up resistor R8, last load capacitance C9, upward the positive input terminal of follower IC5+IN end is connected the other end ground connection of last pull-up resistor R8; The other end ground connection of last load capacitance C9; The output terminal OUT end of last follower IC5 is connected with the X positive input terminal X1 end of its negative input end-IN end, superior musical instruments used in a Buddhist or Taoist mass IC7, the power end of last follower IC5+V termination VCC end, the earth terminal GND end ground connection of IC5.

The input end I end of following Schmidt's chip IC 2 is connected with the end of the other end of middle input resistance R1, middle input capacitance C2; The other end ground connection of middle input capacitance C2, the power end of following Schmidt's chip IC 2+V termination VCC end, the ground end GND end ground connection of following Schmidt's chip IC 2; The output terminal O end of following Schmidt's chip IC 2 is connected with the end of following differential capacitance C10; The other end of following differential capacitance C10 is connected with the input end IN end of the end of following differential resistance R9, following F/V chip IC 4, another termination VCC end of following differential resistance R9, and the CO end of relatively holding of following F/V chip IC 4 is connected with the end of lower limit piezoresistance R10, the end of following comparison resistance R11; Another termination VCC end of lower limit piezoresistance R10; The other end ground connection of following comparison resistance R11, the reference edge REF end of following F/V chip IC 4 is connected with the end of following reference resistance R12, and the other end of following reference resistance R12 is connected with the end of following reference potential device RP2; The other end of following reference potential device RP2 and center-side ground connection thereof; The power end of following F/V chip IC 4+V termination VCC end, the earth terminal GND end of following F/V chip IC 4 and logical end LO end ground connection, the timing end RC of following F/V chip IC 4 are held with the end of following timing resistor R13, the end of timing capacitor C11 is connected down; Another termination VCC end of following timing resistor R13; The other end ground connection of following timing capacitor C11, the output terminal OUT end of following F/V chip IC 4 is connected the other end ground connection of following pull-up resistor R14 with the end of the end of following pull-up resistor R14, following load capacitance C12, the positive input terminal of following follower IC6+IN end; The other end ground connection of following load capacitance C12; An end of resistance R 18 is connected under the X negative input end X2 end of the output terminal OUT of following follower IC6 end and its negative input end-IN end, superior musical instruments used in a Buddhist or Taoist mass IC7, the anode, and the power end of following follower IC6+V termination VCC holds, and the earth terminal GND of IC6 holds ground connection.

The elastic modulus computing circuit comprises superior musical instruments used in a Buddhist or Taoist mass IC7; The Y negative input end Y2 end of superior musical instruments used in a Buddhist or Taoist mass IC7, offset side Z hold ground connection; The positive power source terminal of superior musical instruments used in a Buddhist or Taoist mass IC7+V termination VCC end; The negative power end of superior musical instruments used in a Buddhist or Taoist mass IC7-V termination VSS end; The end of resistance R15 is connected on the output terminal OUT of superior musical instruments used in a Buddhist or Taoist mass IC7 end and the negative terminal, and the Y positive input terminal Y1 end of superior musical instruments used in a Buddhist or Taoist mass IC7 is held with the X positive input terminal X1 of the output terminal OUT end of operational amplifier IC8, following multiplier IC9 and is connected, and the positive power source terminal of operational amplifier IC8+V termination VCC holds, earth terminal GND holds ground connection; On the negative input end of operational amplifier IC8-IN end and the negative terminal under the other end of resistance R15, the negative terminal end of resistance R 16 be connected; On the other end ground connection of resistance R 16 under the negative terminal, the positive input terminal of operational amplifier IC8+IN end and anode under the end of resistance R17, the anode other end of resistance R 18 be connected the other end ground connection of resistance R17 on the anode; The Y negative input end Y2 end of following multiplier IC9, offset side Z hold ground connection; The positive power source terminal of following multiplier IC9+V termination VCC end; The negative power end of following multiplier IC9-V termination VSS end; The Y positive input terminal Y1 end of following multiplier IC9 is connected with the end of the other end of left input resistance R0, left input capacitance C0; The other end ground connection of left side input capacitance C0, the output terminal OUT end of following multiplier IC9 is connected with filter resistance R19 one end, and the filter resistance R19 other end is connected with the end of filter capacitor C13, the end of divider resistance R20, positive input terminal+IN end of output amplifier IC10; The other end ground connection of the other end of filter capacitor C13, divider resistance R20; The negative input end of output amplifier IC10-IN end is connected with the end of stake resistance R21, the end of feedback resistance R22, the other end ground connection of stake resistance R21, and the other end of feedback resistance R22 is connected with the other end and the center-side thereof of gain potentiometer RP3.

The invention has the beneficial effects as follows: utilize existing speed sensor signal and tension pick-up signal on the forward and backward two driving shaft motors in each productive unit of flexible winding thing; Two axial lines rate signal and tension signal are carried out simple circuit computing; Get final product the online elastic modulus parameter of obtaining the flexible winding thing, this method reliability is high, low, the highly versatile of cost.

Description of drawings

Fig. 1 is a circuit diagram of the present invention;

Fig. 2 is a realistic application conditions synoptic diagram of the present invention.

Embodiment

Below in conjunction with accompanying drawing the present invention is described further.

As shown in Figure 1, the present invention includes speed pulse signal translation circuit and elastic modulus computing circuit.

The speed pulse signal translation circuit comprises web member CN1; The tension signal input end UT end of CN1 is connected with the end of left input resistance R0; The pulse signal 1 input end FV1 end of CN1 is connected with the end of middle input resistance R1; The pulse signal 2 input end FV2 end of CN1 is connected with the end of right input resistance R2; The ground end GND end ground connection of CN1, the signal output part OUT end of CN1 is connected with the end of the output terminal OUT end of output amplifier IC10, gain potentiometer RP3, and the positive supply input end of CN1+V end is connected with positive input terminal+IN end of power module PM1; The negative supply input end of CN1-V end is connected with negative input end-IN end of power module PM1; The positive output end of power module PM1+V end is connected with the anode of last electrolysis capacitor C 3, an end of going up high frequency capacitance C5, VCC end, the negative terminal of last electrolysis capacitor C 3, the other end ground connection of going up high frequency capacitance C5, and the negative output terminal of power module PM1-V holds with the negative terminal of following electrochemical capacitor C4, an end, the VSS end of high frequency capacitance C6 are connected down; The other end ground connection of the anode of following electrochemical capacitor C4, following high frequency capacitance C6, the ground end GND end ground connection of power module PM1; The input end I end of last Schmidt's chip IC 1 is connected with the end of the other end of right input resistance R2, right input capacitance C1; The other end ground connection of right input capacitance C1, the power end of last Schmidt's chip IC 1+V termination VCC end, the ground end GND end ground connection of last Schmidt's chip IC 1; The output terminal O end of last Schmidt's chip IC 1 is connected with an end of codifferential capacitor C 7; One end of the other end of codifferential capacitor C 7 and codifferential resistance R 3, the input end IN end of going up F/V chip IC 3 are connected, another termination VCC end of codifferential resistance R 3, last F/V chip IC 3 hold relatively that CO holds with the end of upper limit piezoresistance R4, upward the end of comparison resistance R5 is connected; Another termination VCC end of upper limit piezoresistance R4; The other end ground connection of last comparison resistance R5, the reference edge REF end of last F/V chip IC 3 is connected with the end of last reference resistance R6, and the other end of last reference resistance R6 is connected with the end of last reference potential device RP1; The other end of last reference potential device RP1 and center-side ground connection thereof; The power end of last F/V chip IC 3+V termination VCC holds, and the earth terminal GND end of last F/V chip IC 3 and logical end LO end ground connection, the timing end RC of last F/V chip IC 3 are held with the end of last timing resistor R7, upward the end of timing capacitor C8 is connected; Another termination VCC end of last timing resistor R7; The other end ground connection of last timing capacitor C8, the output terminal OUT of last F/V chip IC 3 holds with the end of the end of last pull-up resistor R8, last load capacitance C9, upward the positive input terminal of follower IC5+IN end is connected the other end ground connection of last pull-up resistor R8; The other end ground connection of last load capacitance C9; The output terminal OUT end of last follower IC5 is connected with the X positive input terminal X1 end of its negative input end-IN end, superior musical instruments used in a Buddhist or Taoist mass IC7, the power end of last follower IC5+V termination VCC end, the earth terminal GND end ground connection of IC5; The input end I end of following Schmidt's chip IC 2 is connected with the end of the other end of middle input resistance R1, middle input capacitance C2; The other end ground connection of middle input capacitance C2, the power end of following Schmidt's chip IC 2+V termination VCC end, the ground end GND end ground connection of following Schmidt's chip IC 2; The output terminal O end of following Schmidt's chip IC 2 is connected with the end of following differential capacitance C10; The other end of following differential capacitance C10 is connected with the input end IN end of the end of following differential resistance R9, following F/V chip IC 4, another termination VCC end of following differential resistance R9, and the CO end of relatively holding of following F/V chip IC 4 is connected with the end of lower limit piezoresistance R10, the end of following comparison resistance R11; Another termination VCC end of lower limit piezoresistance R10; The other end ground connection of following comparison resistance R11, the reference edge REF end of following F/V chip IC 4 is connected with the end of following reference resistance R12, and the other end of following reference resistance R12 is connected with the end of following reference potential device RP2; The other end of following reference potential device RP2 and center-side ground connection thereof; The power end of following F/V chip IC 4+V termination VCC end, the earth terminal GND end of following F/V chip IC 4 and logical end LO end ground connection, the timing end RC of following F/V chip IC 4 are held with the end of following timing resistor R13, the end of timing capacitor C11 is connected down; Another termination VCC end of following timing resistor R13; The other end ground connection of following timing capacitor C11, the output terminal OUT end of following F/V chip IC 4 is connected the other end ground connection of following pull-up resistor R14 with the end of the end of following pull-up resistor R14, following load capacitance C12, the positive input terminal of following follower IC6+IN end; The other end ground connection of following load capacitance C12; An end of resistance R 18 is connected under the X negative input end X2 end of the output terminal OUT of following follower IC6 end and its negative input end-IN end, superior musical instruments used in a Buddhist or Taoist mass IC7, the anode, and the power end of following follower IC6+V termination VCC holds, and the earth terminal GND of IC6 holds ground connection;

The elastic modulus computing circuit comprises superior musical instruments used in a Buddhist or Taoist mass IC7; The Y negative input end Y2 end of superior musical instruments used in a Buddhist or Taoist mass IC7, offset side Z hold ground connection; The positive power source terminal of superior musical instruments used in a Buddhist or Taoist mass IC7+V termination VCC end; The negative power end of superior musical instruments used in a Buddhist or Taoist mass IC7-V termination VSS end; The end of resistance R15 is connected on the output terminal OUT of superior musical instruments used in a Buddhist or Taoist mass IC7 end and the negative terminal, and the Y positive input terminal Y1 end of superior musical instruments used in a Buddhist or Taoist mass IC7 is held with the X positive input terminal X1 of the output terminal OUT end of operational amplifier IC8, following multiplier IC9 and is connected, and the positive power source terminal of operational amplifier IC8+V termination VCC holds, earth terminal GND holds ground connection; On the negative input end of operational amplifier IC8-IN end and the negative terminal under the other end of resistance R15, the negative terminal end of resistance R 16 be connected; On the other end ground connection of resistance R 16 under the negative terminal, the positive input terminal of operational amplifier IC8+IN end and anode under the end of resistance R17, the anode other end of resistance R 18 be connected the other end ground connection of resistance R17 on the anode; The Y negative input end Y2 end of following multiplier IC9, offset side Z hold ground connection; The positive power source terminal of following multiplier IC9+V termination VCC end; The negative power end of following multiplier IC9-V termination VSS end; The Y positive input terminal Y1 end of following multiplier IC9 is connected with the end of the other end of left input resistance R0, left input capacitance C0; The other end ground connection of left side input capacitance C0, the output terminal OUT end of following multiplier IC9 is connected with filter resistance R19 one end, and the filter resistance R19 other end is connected with the end of filter capacitor C13, the end of divider resistance R20, positive input terminal+IN end of output amplifier IC10; The other end ground connection of the other end of filter capacitor C13, divider resistance R20; The negative input end of output amplifier IC10-IN end is connected with the end of stake resistance R21, the end of feedback resistance R22, the other end ground connection of stake resistance R21, and the other end of feedback resistance R22 is connected with the other end and the center-side thereof of gain potentiometer RP3.

Schmidt's chip IC 1, the IC2 of comprising used in the present invention, F/V chip IC 3, IC4, follower IC5, IC6; Multiplier IC7, IC9, amplifier IC8, IC10, power module PM1; Web member CN1 etc. all adopts existing matured product at all interior devices, can obtain through market.For example: Schmidt's chip adopts CD40106, and the F/V chip adopts LM231, follower and amplifier to adopt TLC2264, multiplier to adopt AD633, power module to adopt E0512D-2W, web member CN1 to adopt CH2.54-7 connector etc.

Main circuit parameter and input/output relation among the present invention are following:

(1) foundation of the soft detection method of tension force

（1）

（2）

（3）

（4）

Formula (4) is the foundation of the elastic modulus detection computations of the present invention's proposition, wherein:

Be tension force (N);

,

Be respectively the linear velocity (m/min) of adjacent diaxon,

Sectional area (m for the flexible winding thing ²); εElastic modulus (N/m for the flexible winding thing ²); LBe the flexible winding thing length (m) of two between centers;

Be the flexible winding thing in the working time of above-mentioned adjacent two between centers (s), because of Very little, thus tension force can be approximately and Unit two between speed difference relation relatively.

(2) circuit algorithm and parameter matching relationship

（5）

（6）

（7）

（8）

（9）

（10）

（11）

（12）

（13）

（14）

During stable state:

(15)

（16）

（17）

in the formula be respectively in Fig. 1 circuit last F/V chip IC 3, down F/V chip IC 4, go up follower IC5, follower IC6, operational amplifier IC8, the voltage signal of multiplier IC9, each output terminal of output amplifier IC10 down down,

for through the input signal of the tension signal input end UT of web member CN1 end by the voltage signal that is directly proportional with tension force after left input resistance R0 and the left input capacitance C0 filtering;

in formula (6), formula (8), the formula (17),

,

recommendation are 10V;

is the maximal value of elastic modulus; ,

be by the decision of tested linear velocity and photoelectric encoder nameplate information, and all the other are various to be the matching relationship between circuit element parameter.

The course of work of the online soft testing circuit of flexible winding thing elastic modulus of the present invention:

The course of work of speed pulse signal translation circuit: the positive and negative end of power supply of external dc power (like 5V) respectively from web member CN1+the V terminal ,-V terminal input; Through power module PM1 export positive and negative voltage be respectively VCC (as+12V), VSS (like-12V) positive and negative symmetrical power supply, gives Fig. 1 circuit supply.Will be from the photoelectric encoder signal on two motor shafts in the productive unit and tension signal respectively from FV1 terminal, FV2 terminal, UT terminal (annotate: the road signal that relative velocity is low the connects the FV1 end) input of web member CN1; Because of what import through the FV1 of web member CN1 terminal, FV2 terminal is pulse duration frequency signal; So need respectively through last F/V chip IC 3, F/V chip IC 4 is for forming the voltage signal that is directly proportional with frequency behind the frequency/voltage change-over circuit of core and following output by last follower IC5, following follower IC6, respectively suc as formula (5), formula (7) formula down.

The course of work of elastic modulus computing circuit: from

,

two paths of signals of last follower IC5, each output terminal OUT end of following follower IC6; Divider by superior musical instruments used in a Buddhist or Taoist mass IC7 and operational amplifier IC8 form is realized suc as formula the computing shown in (9); Operational amplifier IC8 output signal carries out filtering with the voltage signal

that reflects tension signal from the UT terminal of web member CN1 and after left input resistance R0, left input capacitance C0 filtering through the computing of following multiplier IC9 and by the filtering link that filter resistance R19, filter capacitor C13 form; The signal

that output of adjustment back is directly proportional with elastic modulus after output amplifier IC10 gains; Shown in (16), the output signal of output amplifier IC10

is through the output of the signal output part OUT of web member CN1 end.

The online soft testing circuit realistic application conditions synoptic diagram of a kind of flexible winding thing elastic modulus of the present invention is as shown in Figure 2; The linear speed photoelectric encoder 4 output signals that will connect with the feeding motor that drives feed shaft 23, with drive pulse signal 1 input end FV1 end, the pulse signal 2 input end FV2 end that rotating speed photoelectric encoder 7 output signals that motor 6 connects are received web member CN1 in the circuit 1 of the present invention respectively that involve that involves axle 5; Tension pick-up 8 output signals are received the tension signal input end UT end of web member CN1 in the circuit 1 of the present invention; The signal that after circuit 1 computing of the present invention, will be directly proportional with coiling thing 9 elastic modulus outputs to monitoring of follow-up production run and control system, realizes in process of production the real-time observing and controlling to flexible winding thing elastic modulus parameter.

Claims (1)

1. the online soft testing circuit of flexible winding thing elastic modulus comprises speed pulse signal translation circuit and elastic modulus computing circuit, it is characterized in that:

The speed pulse signal translation circuit comprises web member CN1; The tension signal input end UT end of CN1 is connected with the end of left input resistance R0; The pulse signal 1 input end FV1 end of CN1 is connected with the end of middle input resistance R1; The pulse signal 2 input end FV2 end of CN1 is connected with the end of right input resistance R2; The ground end GND end ground connection of CN1, the signal output part OUT end of CN1 is connected with the end of the output terminal OUT end of output amplifier IC10, gain potentiometer RP3, and the positive supply input end of CN1+V end is connected with positive input terminal+IN end of power module PM1; The negative supply input end of CN1-V end is connected with negative input end-IN end of power module PM1; The positive output end of power module PM1+V end is connected with the anode of last electrolysis capacitor C 3, an end of going up high frequency capacitance C5, VCC end, the negative terminal of last electrolysis capacitor C 3, the other end ground connection of going up high frequency capacitance C5, and the negative output terminal of power module PM1-V holds with the negative terminal of following electrochemical capacitor C4, an end, the VSS end of high frequency capacitance C6 are connected down; The other end ground connection of the anode of following electrochemical capacitor C4, following high frequency capacitance C6, the ground end GND end ground connection of power module PM1; The input end I end of last Schmidt's chip IC 1 is connected with the end of the other end of right input resistance R2, right input capacitance C1; The other end ground connection of right input capacitance C1, the power end of last Schmidt's chip IC 1+V termination VCC end, the ground end GND end ground connection of last Schmidt's chip IC 1; The output terminal O end of last Schmidt's chip IC 1 is connected with an end of codifferential capacitor C 7; One end of the other end of codifferential capacitor C 7 and codifferential resistance R 3, the input end IN end of going up F/V chip IC 3 are connected, another termination VCC end of codifferential resistance R 3, last F/V chip IC 3 hold relatively that CO holds with the end of upper limit piezoresistance R4, upward the end of comparison resistance R5 is connected; Another termination VCC end of upper limit piezoresistance R4; The other end ground connection of last comparison resistance R5, the reference edge REF end of last F/V chip IC 3 is connected with the end of last reference resistance R6, and the other end of last reference resistance R6 is connected with the end of last reference potential device RP1; The other end of last reference potential device RP1 and center-side ground connection thereof; The power end of last F/V chip IC 3+V termination VCC holds, and the earth terminal GND end of last F/V chip IC 3 and logical end LO end ground connection, the timing end RC of last F/V chip IC 3 are held with the end of last timing resistor R7, upward the end of timing capacitor C8 is connected; Another termination VCC end of last timing resistor R7; The other end ground connection of last timing capacitor C8, the output terminal OUT of last F/V chip IC 3 holds with the end of the end of last pull-up resistor R8, last load capacitance C9, upward the positive input terminal of follower IC5+IN end is connected the other end ground connection of last pull-up resistor R8; The other end ground connection of last load capacitance C9; The output terminal OUT end of last follower IC5 is connected with the X positive input terminal X1 end of its negative input end-IN end, superior musical instruments used in a Buddhist or Taoist mass IC7, the power end of last follower IC5+V termination VCC end, the earth terminal GND end ground connection of IC5; The input end I end of following Schmidt's chip IC 2 is connected with the end of the other end of middle input resistance R1, middle input capacitance C2; The other end ground connection of middle input capacitance C2, the power end of following Schmidt's chip IC 2+V termination VCC end, the ground end GND end ground connection of following Schmidt's chip IC 2; The output terminal O end of following Schmidt's chip IC 2 is connected with the end of following differential capacitance C10; The other end of following differential capacitance C10 is connected with the input end IN end of the end of following differential resistance R9, following F/V chip IC 4, another termination VCC end of following differential resistance R9, and the CO end of relatively holding of following F/V chip IC 4 is connected with the end of lower limit piezoresistance R10, the end of following comparison resistance R11; Another termination VCC end of lower limit piezoresistance R10; The other end ground connection of following comparison resistance R11, the reference edge REF end of following F/V chip IC 4 is connected with the end of following reference resistance R12, and the other end of following reference resistance R12 is connected with the end of following reference potential device RP2; The other end of following reference potential device RP2 and center-side ground connection thereof; The power end of following F/V chip IC 4+V termination VCC end, the earth terminal GND end of following F/V chip IC 4 and logical end LO end ground connection, the timing end RC of following F/V chip IC 4 are held with the end of following timing resistor R13, the end of timing capacitor C11 is connected down; Another termination VCC end of following timing resistor R13; The other end ground connection of following timing capacitor C11, the output terminal OUT end of following F/V chip IC 4 is connected the other end ground connection of following pull-up resistor R14 with the end of the end of following pull-up resistor R14, following load capacitance C12, the positive input terminal of following follower IC6+IN end; The other end ground connection of following load capacitance C12; An end of resistance R 18 is connected under the X negative input end X2 end of the output terminal OUT of following follower IC6 end and its negative input end-IN end, superior musical instruments used in a Buddhist or Taoist mass IC7, the anode, and the power end of following follower IC6+V termination VCC holds, and the earth terminal GND of IC6 holds ground connection;

The elastic modulus computing circuit comprises superior musical instruments used in a Buddhist or Taoist mass IC7; The Y negative input end Y2 end of superior musical instruments used in a Buddhist or Taoist mass IC7, offset side Z hold ground connection; The positive power source terminal of superior musical instruments used in a Buddhist or Taoist mass IC7+V termination VCC end; The negative power end of superior musical instruments used in a Buddhist or Taoist mass IC7-V termination VSS end; The end of resistance R15 is connected on the output terminal OUT of superior musical instruments used in a Buddhist or Taoist mass IC7 end and the negative terminal, and the Y positive input terminal Y1 end of superior musical instruments used in a Buddhist or Taoist mass IC7 is held with the X positive input terminal X1 of the output terminal OUT end of operational amplifier IC8, following multiplier IC9 and is connected, and the positive power source terminal of operational amplifier IC8+V termination VCC holds, earth terminal GND holds ground connection; On the negative input end of operational amplifier IC8-IN end and the negative terminal under the other end of resistance R15, the negative terminal end of resistance R 16 be connected; On the other end ground connection of resistance R 16 under the negative terminal, the positive input terminal of operational amplifier IC8+IN end and anode under the end of resistance R17, the anode other end of resistance R 18 be connected the other end ground connection of resistance R17 on the anode; The Y negative input end Y2 end of following multiplier IC9, offset side Z hold ground connection; The positive power source terminal of following multiplier IC9+V termination VCC end; The negative power end of following multiplier IC9-V termination VSS end; The Y positive input terminal Y1 end of following multiplier IC9 is connected with the end of the other end of left input resistance R0, left input capacitance C0; The other end ground connection of left side input capacitance C0, the output terminal OUT end of following multiplier IC9 is connected with filter resistance R19 one end, and the filter resistance R19 other end is connected with the end of filter capacitor C13, the end of divider resistance R20, positive input terminal+IN end of output amplifier IC10; The other end ground connection of the other end of filter capacitor C13, divider resistance R20; The negative input end of output amplifier IC10-IN end is connected with the end of stake resistance R21, the end of feedback resistance R22, the other end ground connection of stake resistance R21, and the other end of feedback resistance R22 is connected with the other end and the center-side thereof of gain potentiometer RP3.

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