CN103691123A - Infrared speed measuring lower-body-fixed turning core strength training and information feedback monitoring device - Google Patents
Infrared speed measuring lower-body-fixed turning core strength training and information feedback monitoring device Download PDFInfo
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- CN103691123A CN103691123A CN201310745550.1A CN201310745550A CN103691123A CN 103691123 A CN103691123 A CN 103691123A CN 201310745550 A CN201310745550 A CN 201310745550A CN 103691123 A CN103691123 A CN 103691123A
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Abstract
The invention discloses an infrared speed measuring lower-body-fixed turning core strength training and information feedback monitoring device, relates to a strength training and information feedback device and aims to solve the problems that no lower-body-fixed turning core strength training devices exists, exercise parameters cannot by monitored quantitatively, and the physical ability increasing of athletes is inconvenient. The arc face of a balance seat is rotationally connected with a base. A bottom plate is fixed on the upper end face of the balance seat. A pedal is connected with the bottom plate through a vertical fixing shaft. The upper end of the fixing shaft is fixedly connected with the lower end face of the pedal. The lower end of the fixing shaft is fixedly connected with the bottom plate. A shaft sleeve is sleeved on the fixing shaft at the lower end of the pedal. A rotation resistor is mounted between the fixing shaft and the shaft sleeve. The lower end of a rotary frame is fixedly connected with the outer end face of the shaft sleeve. The upper end of the rotary frame is provided with two rotary handles. The signal output ends of two distance measuring sensors are respectively connected with the first distance signal input end and the second distance signal input end of a control circuit. The infrared speed measuring lower-body-fixed turning core strength training and information feedback monitoring device is applicable to turning strength training.
Description
Technical field
The present invention and a kind of human body physical agility strength building and information feedback device, be specifically related to a kind of infrared ray the test the speed training of lower Fixed swivel force at the core and information feedback supervising device.
Background technology
The training Main Function of force at the core is stable motion person's backbone, pelvis, keeps correct body gesture, stablizes center of gravity, improves control and the balanced capacity of health, while improving motion, by core muscle group, to the energy of four limbs and other muscle groups, is exported.
Force at the core emphasizes that having an effect of action should rely on the center of health, acral firmly take the having an effect as starting point of trunk and waist, can extend the arm of force, increase moment, obtain larger strength, sportsman is when motion, and waist to the position of hip is the central area of whole health, and the motion of whole body is played a part to tie.The sportsman that force at the core reaches all the more, it will more coordinate when moving, movement effects is just better, what force at the core exercise was emphasized is the resistance exercise of carrying out under unbalanced condition, can make more small muscle group particularly periarticular auxiliary flesh take exercises, improve the ability that sportsman stablize joint and control center of gravity at the volley.
The training of lower Fixed swivel force at the core refers to: when sportsman does body twist, be at the lower part of the body fixedly in the situation that, waist, abdomen, muscle of hip group fix in lower end, complete body twist;
Modern high-level scientific training is particular about and is incorporated the strengthening exercise means that approach special action, through the specific strength training device of optimal design and in conjunction with the training of up-to-date training focus-force at the core, utilize Athletes information to carry out information feedback to player motion technical process, at present, lower Fixed swivel force at the core is trained and information feedback supervising device not have special infrared ray to test the speed, cannot quantification monitoring kinematic parameter.
Summary of the invention
The present invention does not have the special infrared ray lower Fixed swivel force at the core trainer that tests the speed for solving, problem that more cannot quantification monitoring kinematic parameter, and then a kind of infrared ray test the speed lower Fixed swivel force at the core training and information feedback supervising device are provided.
The present invention solves the problems of the technologies described above the technical scheme of taking to be: infrared ray of the present invention tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device comprises base, chassis, balance base, rotating turret, fixed axis, axle sleeve, rotational resistance device, pedal, information feedback component and two pressure sensors, base is provided with the first groove, the bottom surface of described balance base is that radius is the cambered surface of R, between the cambered surface of balance base and base, be rotationally connected, chassis is fixed on the upper surface of balance base, pedal be arranged on chassis directly over, fixed axis by vertical setting between pedal and chassis is connected, and the upper end of fixed axis is fixedly connected with the lower surface of pedal, between the lower end of fixed axis and chassis, be fixedly connected with, axle sleeve is sleeved on the fixed axis of pedal lower end, rotational resistance device is arranged between fixed axis and axle sleeve, the lower end of rotating turret is fixedly connected with the outer face of axle sleeve, the upper end of rotating turret is provided with two swing handles, on each swing handle, be provided with a pressure sensor,
Described information feedback component comprises the feedback unit that tests the speed, torsion feedback unit, two distance measuring sensors, control circuit and displays, and two distance measuring sensors lay respectively at the both sides of the cambered surface of balance base; The signal output part of two distance measuring sensors connects respectively the first distance signal input and the second distance signal input of control circuit, and the display drive signals output of described control circuit connects the signal input part of display; The bottom face of described pedal is provided with the second groove, and control circuit is arranged in the second groove of pedal;
Described control circuit is embedded in the control module that software is realized, and described control module comprises as lower unit:
Data acquisition unit, for all gather the first distance signal of the first distance signal input input and the second distance signal of second distance signal input input simultaneously at interval of the sampling time;
Comparing unit, deducts second distance signal with the first distance signal receiving, and picked up signal is poor;
Display unit, for converting signal difference to digital information or graphical information sends to display;
Described torsion feedback unit comprises torsion torque sensor, torsion amplifier and voltage driving display, and torsion torque sensor, torsion amplifier and voltage driving display are connected successively;
The described feedback unit that tests the speed comprises tachometer generator, signal processing circuit and the display that tests the speed, tachometer generator is arranged on chassis, and tachometer generator is connected with the lower end of fixed axis, the output of tachometer generator is connected with signal processing circuit, and the data of processing through signal processing circuit send to the display that tests the speed.
The present invention compared with prior art has following effect:
1. infrared ray of the present invention tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device can make sportsman overcome labile state and keep correct firmly posture, need to coordinate by waist, pelvis, hip joint and lower limb, transfer to raise and activate the meat fiber participation at more core position and stablize having an effect of balance and action;
2. the present invention is in training process, the poised state of health in the time of can showing training athlete in real time, quantizes and monitoring moving parameter, and then allows sportsman know the state of its training, and then adjust in real time its attitude, be conducive to improve sportsman's force at the core training effect;
3. quantitative information of the present invention sends to the information such as remote computer to read by communication port or radio communication circuit to set, and then can be for analyzing athletic physical training condition, and then provides guidance foundation for coach;
4. the present invention is simple in structure, is convenient to manufacture;
5. rotational resistance device of the present invention can be adjusted at any time sportsman and stands in while turning on pedal, resistance between fixed axis and axle sleeve, can know that sportsman overcomes the size of resistance, torsion feedback unit can be measured the rate curve of sportsman's power while turning, to the real-time effective monitoring of whole Motion Technology process;
6. tachometer circuit of the present invention can be measured athletic torso twist speed in real time.
Accompanying drawing explanation
Fig. 1 is the test the speed overall structure front view of the training of lower Fixed swivel force at the core and information feedback supervising device of infrared ray of the present invention, Fig. 2 is the right view of Fig. 1, Fig. 3 is the upward view of chassis and balance base in the specific embodiment, and Fig. 4 is the electric part schematic diagram of torsion feedback unit in information feedback component; Fig. 5 is the electric part schematic diagram of information feedback component except torsion feedback unit; Fig. 6 is with the electric part schematic diagram of control circuit concrete structure in information feedback component; Fig. 7 is the schematic diagram of feedback unit of testing the speed.
The specific embodiment.
The specific embodiment one: in conjunction with Fig. 1-Fig. 7 explanation, the infrared ray of present embodiment tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device comprises base 8, chassis 1, balance base 2, rotating turret 5, fixed axis 15, axle sleeve 16, rotational resistance device 17, pedal 18, information feedback component and two pressure sensors 20, base 8 is provided with the first groove 8-1, the bottom surface of described balance base 2 is that radius is the cambered surface of R, between the cambered surface of balance base 2 and base 8, be rotationally connected, chassis 1 is fixed on the upper surface of balance base 2, pedal 18 be arranged on chassis 1 directly over, between pedal 18 and chassis 1, by the fixed axis 15 vertically arranging, be connected, and the upper end of fixed axis 15 is fixedly connected with the lower surface of pedal 18, between the lower end of fixed axis 15 and chassis 1, be fixedly connected with, axle sleeve 16 is sleeved on the fixed axis 15 of pedal 18 lower ends, rotational resistance device 17 is arranged between fixed axis 15 and axle sleeve 16, the lower end of rotating turret 5 is fixedly connected with the outer face of axle sleeve 16, the upper end of rotating turret 5 is provided with two swing handle 5-1, on each swing handle 5-1, be provided with a pressure sensor 20,
Described information feedback component comprises that the feedback unit that tests the speed, torsion feedback unit, two distance measuring sensors 3, control circuit 4 and 6, two distance measuring sensors 3 of display lay respectively at the both sides of the cambered surface of balance base 2; The signal output part of two distance measuring sensors 3 connects respectively the first distance signal input and the second distance signal input of control circuit 4, and the display drive signals output of described control circuit 4 connects the signal input part of display 6; The bottom face of described pedal 18 is provided with the second groove, and control circuit 4 is arranged in the second groove of pedal 18;
Described control circuit 4 is embedded in the control module that software is realized, and described control module comprises as lower unit:
Data acquisition unit, for all gather the first distance signal of the first distance signal input input and the second distance signal of second distance signal input input simultaneously at interval of the sampling time;
Comparing unit, deducts second distance signal with the first distance signal receiving, and picked up signal is poor;
Display unit, for converting signal difference to digital information or graphical information sends to display;
Described torsion feedback unit comprises torsion torque sensor 20, torsion amplifier 21 and voltage driving display 22, and torsion torque sensor 20, torsion amplifier 21 and voltage driving display 22 are connected successively;
The described feedback unit that tests the speed comprises tachometer generator 24, signal processing circuit 25 and the display 26 that tests the speed, tachometer generator 24 is arranged on chassis 1, and tachometer generator 24 is connected with the lower end of fixed axis 15, the output of tachometer generator 24 is connected with signal processing circuit 25, and the data of processing through signal processing circuit 25 send to the display 26 that tests the speed.
In present embodiment, what distance measuring sensor was exported is data signal.
The described sampling time is the random time parameter between 0.5 second to 3 seconds.
The balance training that has information feedback function described in present embodiment is when practical application, balance base 2 is placed in to smooth region, sportsman's both feet stand on pedal 1, after training starts, when pedal 1 run-off the straight, the signal of two distance measuring sensors, 3 outputs is different, and control circuit obtains the gradient of pedals by gathering and contrast two distance signals, and this gradient is shown to output in the mode of numeral or figure by display.
When showing in digital form, can show the signal difference with sign, the larger expression gradient of numeral is larger.
When the form with figure shows, can show the general image of balance training, then according to gradient, show the heeling condition of described balance training.Can also pass through easy image, for example, only show the poised state of pedal.
The processing tachometer generator 24 output signal methods of present embodiment signal processing circuit 25 are prior art.
The specific embodiment two: in conjunction with Fig. 1 and Fig. 2 explanation, described in present embodiment, rotating turret 5 comprises horizontal upper bracket 5-2, vertical rack 5-3 and horizontal lower carriage 5-4, one end of horizontal lower carriage 5-4 is fixed on the outer face of axle sleeve 16, the other end of horizontal lower carriage 5-4 is fixedly connected with the lower end of vertical rack 5-3, the middle part of upper horizontal upper bracket 5-2 is fixedly connected with the upper end of vertical rack 5-3, and the two ends of upper horizontal upper bracket 5-2 are respectively provided with a swing handle 5-1.So design, the standing on pedal 18 of safety while being convenient to training athlete, for sportsman provides convenience, and when rotating along with the athletic strength of turning is rotated.Other composition and annexation are identical with the specific embodiment one.
The specific embodiment three: the horizontal upper bracket 5-2 of present embodiment is arc stent.So design, facilitates sportsman to grasp two swing handle 5-1.Other composition and annexation are identical with the specific embodiment two.
The specific embodiment four: in conjunction with Fig. 2, present embodiment is described, the bottom surface of the first groove 8-1 of present embodiment is cambered surface, and the radius of this cambered surface is greater than the radius of balance base 2, the action of cambered surface is between 0.2 to 0.6 times of height of balance base 2.So arrange, more easily guarantee that balance base 2 is positioned at the centre position of groove 81, make its amplitude that swings identical.Other composition and annexation are identical with the specific embodiment one, two or three.
The specific embodiment five: present embodiment is described in conjunction with Fig. 2, the infrared ray of present embodiment tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device also comprises two stopping means 10, two stopping means 10 are symmetricly set on base 8, and each stopping means 10 comprises an one slide rail, fore-set 14, pin 13 and a multipair limited block 12; Described slide rail is fixedly connected with the upper surface of base; Described fore-set 14 is fixed on the slide block of slide rail; There is multipair positive stop 12 both sides at slide rail along its glide direction spaced set, on every pair of positive stop 12, are provided with pin holddown groove, and described pin holddown groove is used for placing pin 13.So arrange, stopping means 10 in present embodiment adopts the mode of slideway to realize the adjustment of spacing, by the effect that positive stop is realized fixed position being set in slideway side, easy to operate, quick, and the height of stopping means 1 is remained unchanged, the uniformity of the maximum angle that the pedal 1 that more can guarantee to limit at each gear can swing; Meanwhile, two stopping means 10 are set, when being convenient to beginner exercise and turning, the amplitude of fluctuation of balance base 2 is suitable.Other composition and annexation are identical with the specific embodiment four.
The specific embodiment six: in conjunction with Fig. 2, present embodiment is described, the infrared ray of present embodiment tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device also comprises double-legged spacing preiection 19, and described double-legged spacing preiection 19 is arranged on pedal 18.So arrange, be convenient to sportsman and use.Other composition and annexation are identical with the specific embodiment one, two, three or five.
The specific embodiment seven: in conjunction with Fig. 6, present embodiment is described, the control circuit 4 of present embodiment comprises two signal conditioning circuits, 41 signal conditioning circuits 41, A/D change-over circuit 42 and controller 43, described control module is embedded in controller 43, the signal input part of described two signal conditioning circuit 41 signal conditioning circuits 41 is respectively the first distance signal input and the second distance signal input of control circuit 4, the signal output part of described two signal conditioning circuit 41 signal conditioning circuits 41 connects respectively two input end of analog signal of A/D change-over circuit 42, the digital signal output end of described A/D change-over circuit 42 connects the signals collecting signal input part of controller 43, the A/D changeover control signal output of described controller 43 connects the changeover control signal input of A/D change-over circuit 42, the display drive signals output of described controller connects the signal input part of display 6.So arrange, in present embodiment, the output of two distance measuring sensors be analog signal, this analog signal is processed and is sent to A/D change-over circuit afterwards by signal conditioning circuit, this A/D change-over circuit converts analog signal to data signal and sends to controller afterwards.Controller 43 in present embodiment can adopt chip microcontroller.Information feedback more promptly and accurately.Other composition and annexation are identical with the specific embodiment six.
The specific embodiment eight: present embodiment is described in conjunction with Fig. 5 and Fig. 6, the infrared ray of present embodiment tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device also comprises keyboard 5, and the signal output part of described keyboard 5 connects the keyboard signal input of control circuit 4; Described control module also comprises as lower unit:
Key information collecting unit, for receiving the key information of keyboard 5 inputs;
Key information decoding unit, for judging the content that obtains key information, when the sampling time information of key information position, using this sampling time information as sampling time information; When key information is the digital demonstration information of output, send digital display command to display unit; When key information bit image shows information, send graphics display command to display unit;
Display unit, sends corresponding demonstration information to display 6 according to the order receiving.
So arrange, be convenient to sportsman and use.Other composition and annexation are identical with the specific embodiment seven.
The specific embodiment nine: present embodiment is described in conjunction with Fig. 6, the control circuit 4 of present embodiment also comprises two zeroing circuits 44, described two zeroing circuits 44 are corresponding with two signal conditioning circuits, 41 signal conditioning circuits 41 respectively, and the signal output part of each zeroing circuit 44 connects the zeroing signal input part of signal conditioning circuit 41 signal conditioning circuits 41.So arrange, in present embodiment, increased keyboard 5, can realize the setting to parameter, for example, the sampling time in sampling interval can be set, or the kind of set and display signal is numeral or figure etc.Other composition and annexation are identical with the specific embodiment seven or eight.
Operation principle:
While carrying out under infrared ray the training of Fixed swivel force at the core and quantification monitoring, on the lower Fixed swivel force at the core trainer with quantification monitoring function under sportsman stands in and plays pendulum, and in conjunction with the throwing that approaches of optimal design, wrestling, the feature of the specific strengths such as basketball, grasp the pressure sensor 20 on swing handle 5-1, and adjust the resistance of rotational resistance device 17, then carry out torso twist, now information feedback monitor component is started working, can record athletic amplitude of fluctuation and carry out the quantification treatment of information, the poised state of health quantification monitoring in the time of can recording Athletes, pressure sensor can show force-velocity curve, to the monitoring of whole course of action real time information feedback,
Sportsman is when turning, and balance base 2 swings in the first groove 8-1; Tachometer circuit of the present invention can be measured athletic torso twist speed in real time;
Sportsman overcomes labile state and keeps correct firmly posture, need to coordinate by waist, pelvis, hip joint and lower limb, transfers to raise and activates the meat fiber participation at more core position and stablize having an effect of balance and action.
Claims (9)
1. an infrared ray tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: it comprises base (8), chassis (1), balance base (2), rotating turret (5), fixed axis (15), axle sleeve (16), rotational resistance device (17), pedal (18), information feedback component and two pressure sensors (20), base (8) is provided with the first groove (8-1), the bottom surface of described balance base (2) is that radius is the cambered surface of R, between the cambered surface of balance base (2) and base (8), be rotationally connected, chassis (1) is fixed on the upper surface of balance base (2), pedal (18) be arranged on chassis (1) directly over, between pedal (18) and chassis (1), by the fixed axis (15) vertically arranging, be connected, and the upper end of fixed axis (15) is fixedly connected with the lower surface of pedal (18), between the lower end of fixed axis (15) and chassis (1), be fixedly connected with, axle sleeve (16) is sleeved on the fixed axis (15) of pedal (18) lower end, rotational resistance device (17) is arranged between fixed axis (15) and axle sleeve (16), the lower end of rotating turret (5) is fixedly connected with the outer face of axle sleeve (16), the upper end of rotating turret (5) is provided with two swing handles (5-1), on each swing handle (5-1), be provided with a pressure sensor (20),
Described information feedback component comprises the feedback unit that tests the speed, torsion feedback unit, two distance measuring sensors (3), control circuit (4) and display (6), and two distance measuring sensors (3) lay respectively at the both sides of the cambered surface of balance base (2); The signal output part of two distance measuring sensors (3) connects respectively the first distance signal input and the second distance signal input of control circuit (4), and the display drive signals output of described control circuit (4) connects the signal input part of display (6); The bottom face of described pedal (18) is provided with the second groove, and control circuit (4) is arranged in the second groove of pedal (18);
Described control circuit (4) is embedded in the control module that software is realized, and described control module comprises as lower unit:
Data acquisition unit, for all gather the first distance signal of the first distance signal input input and the second distance signal of second distance signal input input simultaneously at interval of the sampling time;
Comparing unit, deducts second distance signal with the first distance signal receiving, and picked up signal is poor;
Display unit, for converting signal difference to digital information or graphical information sends to display;
Described torsion feedback unit comprises torsion torque sensor (20), torsion amplifier (21) and voltage driving display (22), and torsion torque sensor (20), torsion amplifier (21) and voltage driving display (22) are connected successively;
The described feedback unit that tests the speed comprises tachometer generator (24), signal processing circuit (25) and the display that tests the speed (26), tachometer generator (24) is arranged on chassis (1), and tachometer generator (24) is connected with the lower end of fixed axis (15), the output of tachometer generator (24) is connected with signal processing circuit (25), and the data of processing through signal processing circuit (25) send to the display that tests the speed (26).
2. infrared ray according to claim 1 tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: described rotating turret (5) comprises horizontal upper bracket (5-2), vertical rack (5-3) and horizontal lower carriage (5-4), one end of horizontal lower carriage (5-4) is fixed on the outer face of axle sleeve (16), the other end of horizontal lower carriage (5-4) is fixedly connected with the lower end of vertical rack (5-3), the middle part of upper horizontal upper bracket (5-2) is fixedly connected with the upper end of vertical rack (5-3), the two ends of upper horizontal upper bracket (5-2) are respectively provided with a swing handle (5-1).
3. infrared ray according to claim 2 tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: horizontal upper bracket (5-2) is arc stent.
4. according to the infrared ray described in claim 1,2 or 3, testing the speed, lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: the bottom surface of described the first groove (8-1) is cambered surface, and the radius of this cambered surface is greater than the radius of balance base (2), the action of cambered surface is between 0.2 to 0.6 times of height of balance base (2).
5. infrared ray according to claim 4 tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: described infrared ray tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device also comprises two stopping means (10), it is upper that two stopping means (10) are symmetricly set on base (8), and each stopping means (10) comprises an one slide rail, a fore-set (14), a pin (13) and multipair limited block (12); Described slide rail is fixedly connected with the upper surface of base; Described fore-set (14) is fixed on the slide block of slide rail; There is multipair positive stop (12) both sides at slide rail along its glide direction spaced set, on every pair of positive stop (12), are provided with pin holddown groove, and described pin holddown groove is used for placing pin (13).
6. according to the infrared ray described in claim 1,2,3 or 5, testing the speed, lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: described infrared ray tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device also comprises double-legged spacing preiection (19), and described double-legged spacing preiection (19) is arranged on pedal (18).
7. infrared ray according to claim 6 tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: described control circuit (4) comprises two signal conditioning circuits (41) signal conditioning circuits (41), A/D change-over circuit (42) and controller (43), described control module is embedded in controller (43), the signal input part of described two signal conditioning circuits (41) signal conditioning circuits (41) is respectively the first distance signal input and the second distance signal input of control circuit (4), the signal output part of described two signal conditioning circuits (41) signal conditioning circuits (41) connects respectively two input end of analog signal of A/D change-over circuit (42), the digital signal output end of described A/D change-over circuit (42) connects the signals collecting signal input part of controller (43), the A/D changeover control signal output of described controller (43) connects the changeover control signal input of A/D change-over circuit (42), the display drive signals output of described controller connects the signal input part of display (6).
8. infrared ray according to claim 7 tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: described infrared ray tests the speed, and lower Fixed swivel force at the core is trained and information feedback supervising device also comprises keyboard (5), and the signal output part of described keyboard (5) connects the keyboard signal input of control circuit (4); Described control module also comprises as lower unit:
Key information collecting unit, for receiving the key information of keyboard (5) input;
Key information decoding unit, for judging the content that obtains key information, when the sampling time information of key information position, using this sampling time information as sampling time information; When key information is the digital demonstration information of output, send digital display command to display unit; When key information bit image shows information, send graphics display command to display unit;
Display unit, sends corresponding demonstration information to display (6) according to the order receiving.
9. according to the infrared ray described in claim 7 or 8, testing the speed, lower Fixed swivel force at the core is trained and information feedback supervising device, it is characterized in that: described control circuit (4) also comprises two zeroing circuits (44), described two zeroing circuits (44) are corresponding with two signal conditioning circuits (41) signal conditioning circuits (41) respectively, and the signal output part of each zeroing circuit (44) connects the zeroing signal input part of a signal conditioning circuit (41) signal conditioning circuit (41).
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| CN201310745550.1A CN103691123B (en) | 2013-12-30 | 2013-12-30 | Infrared ray test the speed lower Fixed swivel force at the core training and information feed back supervising device |
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| CN201310745550.1A CN103691123B (en) | 2013-12-30 | 2013-12-30 | Infrared ray test the speed lower Fixed swivel force at the core training and information feed back supervising device |
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