CN204072077U

CN204072077U - Electronic pulsimeter circuit

Info

Publication number: CN204072077U
Application number: CN201420360090.0U
Authority: CN
Inventors: 张玉凤; 汤相平; 王凤清
Original assignee: Jiangsu Institute of Architectural Technology
Current assignee: Jiangsu Institute of Architectural Technology; Jiangsu Jianzhu Institute
Priority date: 2014-06-30
Filing date: 2014-06-30
Publication date: 2015-01-07
Anticipated expiration: 2024-06-30

Abstract

The utility model discloses a kind of electronic pulsimeter circuit, belong to pulse signal field of measuring technique, sensor circuit is electrically connected with amplification and rectification circuit, amplification and rectification circuit is electrically connected with count decoding drive circuit, count decoding drive circuit respectively with single-shot trigger circuit, display circuit is electrically connected, described sensor circuit comprises sensor, by improving existing electronic pulsimeter circuit structure, circuit structure is simplified, while reducing costs, improve the response speed of system, achieve the ordinary surveying to human pulse frequency, this circuit structure stable performance, cost is lower, easy to operate, be easy to promote.

Description

Electronic pulsimeter circuit

Technical field

This utility model relates to a kind of sphygmometer, and specifically a kind of electronic pulsimeter circuit, belongs to pulse signal field of measuring technique.

Background technology

Pulse is the physiological parameter that body weight for humans is wanted, and the health status of reflection human body, all in occupation of consequence in the traditional Chinese medical science or Western medicine diagnose.

Pulse test meter is used to the electronic machine of measurement people's heartbeat number of times, also be Electrocardiographic important component part, be rich in the multidate information about systems such as heart, inner-outer circulation and nerves in human body pulse condition, THE ABSTRAST OF DIGITAL SPHYGMOMETER is widely used in daily life as the instrument measuring pulse.

The method of the most traditional measurement pulse is photoelectric method, with infrared light supply through finger, measure the size of acknowledge(ment) signal, the method of standard is the thought-read signal of telecommunication, and more difficult method is Measure blood pressure change, and these methods can be used for measuring the frequency of pulse of human body, but measurement error is larger, measurement effect is not good, and inaccuracy, cannot Real Time Observation.

Summary of the invention

For above-mentioned prior art Problems existing, this utility model provides a kind of electronic pulsimeter circuit, stable performance, reliable operation, and cost is low, easy to operate.

To achieve these goals, the technical solution adopted in the utility model is: a kind of electronic pulsimeter circuit, comprise sensor circuit, amplification and rectification circuit, single-shot trigger circuit, count decoding drive circuit and display circuit, described sensor circuit is electrically connected with amplification and rectification circuit, amplification and rectification circuit is electrically connected with count decoding drive circuit, count decoding drive circuit respectively with single-shot trigger circuit, display circuit is electrically connected, described sensor circuit comprises sensor, amplification and rectification circuit comprises electric capacity C1, resistance R1, integrated chip IC1 and integrated chip IC5, one end ground connection of sensor, the other end respectively with one end of electric capacity C1, one end of resistance R1, the input of integrated chip IC1 connects, electric capacity C1, the other end of resistance R1 is connected with the outfan of integrated chip IC1, the input of integrated chip IC5 is connected with the outfan of integrated chip IC1,

Single-shot trigger circuit comprises switch S, resistance R2, resistance R3, resistance R4, electric capacity C2, electric capacity C3, electric capacity C4, 555 intervalometer IC2 and integrated chip IC6, one end ground connection of switch S, the other end respectively with one end of resistance R2, the pin two of 555 intervalometer IC2 connects, the other end of resistance R2 respectively with resistance R3, the pin 4 of 555 intervalometer IC2, pin 8 connects, then external+6V power supply, the other end of resistance R3 respectively with the pin 7 of 555 intervalometer IC2, pin 6, one end of electric capacity C2 connects, the other end ground connection of electric capacity C2, the pin one ground connection of 555 intervalometer IC2, the pin 5 of 555 intervalometer IC2 is by electric capacity C3 ground connection, the pin 3 of 555 intervalometer IC2 respectively with one end of electric capacity C4, the input of integrated chip IC6 connects, the other end of electric capacity C4 is by resistance R4 ground connection,

Count decoding drive circuit comprises decade computer IC3 and decade computer IC4, the pin 9 of decade computer IC3 is connected with the outfan of integrated chip IC5, the pin 6 of decade computer IC3 is connected with the outfan of integrated chip IC6, the pin one 0 of decade computer IC3 is connected with the pin 9 of decade computer IC4, the pin 5 of decade computer IC3 is connected to electric capacity C4, between resistance R4, the pin 4 of decade computer IC3, pin 8 ground connection, the pin 7 of decade computer IC3, external+6V the power supply of pin one 6, the pin 6 of decade computer IC4 is connected with the outfan of integrated chip IC6, the pin 7 of decade computer IC4, external+6V the power supply of pin one 6, the pin 5 of decade computer IC4 is connected to electric capacity C4, between resistance R4, the pin 4 of decade computer IC4, pin 8 ground connection,

Display circuit comprises resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, charactron LED1 and charactron LED2, the pin one of decade computer IC3, pin one 5, pin one 4, pin one 3, pin one 2, pin 3, pin two is corresponding and resistance R5 respectively, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, one end of resistance R11 connects, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, the other end of resistance R11 is connected respectively the pin 7 of charactron LED1, pin 6, pin 4, pin two, pin one, pin 9, pin one 0, the pin one of decade computer IC4, pin one 5, pin one 4, pin one 3, pin one 2, pin 3, pin two is corresponding and resistance R12 respectively, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, one end of resistance R18 connects, resistance R12, resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, the other end of resistance R18 is connected respectively the pin 7 of charactron LED2, pin 6, pin 4, pin two, pin one, pin 9, pin one 0, the pin 5 of charactron LED1, pin 3, pin 8 ground connection, the pin 5 of charactron LED2, pin 3, pin 8 ground connection.

Further, sensor is HTD piezoelectric ceramic piece integrated sensor.

The beneficial effects of the utility model are: by improving existing electronic pulsimeter circuit structure, circuit structure is simplified, while reducing costs, improve the response speed of system, achieve the ordinary surveying to human pulse frequency, this circuit structure stable performance, cost is lower, easy to operate, be easy to promote.

Accompanying drawing explanation

Fig. 1 is circuit theory diagrams of the present utility model.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, a kind of electronic pulsimeter circuit, comprise sensor circuit, amplification and rectification circuit, single-shot trigger circuit, count decoding drive circuit and display circuit, described sensor circuit is electrically connected with amplification and rectification circuit, amplification and rectification circuit is electrically connected with count decoding drive circuit, count decoding drive circuit respectively with single-shot trigger circuit, display circuit is electrically connected, described sensor circuit comprises sensor, amplification and rectification circuit comprises electric capacity C1, resistance R1, integrated chip IC1 and integrated chip IC5, one end ground connection of sensor, the other end respectively with one end of electric capacity C1, one end of resistance R1, the input of integrated chip IC1 connects, electric capacity C1, the other end of resistance R1 is connected with the outfan of integrated chip IC1, the input of integrated chip IC5 is connected with the outfan of integrated chip IC1,

Preferably, sensor is HTD piezoelectric ceramic piece integrated sensor, produces signal accurate, and precision is good high.

This electronic pulsimeter circuit is using HTD piezoelectric ceramic piece integrated sensor as pulse transducer, beating of pulse is converted to faint electric current, after carrying out amplification and shaping by two cmos nand gate amplifiers after integrated chip IC1, become the potential pulse consistent with pulse frequency, receive the pin 9 of decade computer IC3 (individual position) again, i.e. input end of clock, whenever full 10 pulses of meter, the pin one 0 of decade computer IC3, namely carry exports CO end and just produces a carry pulse, counting as decade computer IC4 (ten) inputs, 555 intervalometer IC2 have been connected into monostable flipflop form, every Push switch S once, producing a width is the pulse of 60s, through the anti-phase pin 6 delivering to decade computer IC4, i.e. latch control terminal LE, when pulse rising edge arrives, by resistance R4, the peaker that electric capacity C4 forms makes decade computer IC3, decade computer IC4 resets, in the pulse persistent period, LE=0, permission count pulse inputs, decade computer IC3, decade computer IC4 counts the pulse in 1min, and by charactron LED1, charactron LED2 shows counting process, after pulse terminates, LE=1, latch count results, charactron LED1, charactron LED2 show result.

Claims

1. an electronic pulsimeter circuit, comprise sensor circuit, amplification and rectification circuit, single-shot trigger circuit, count decoding drive circuit and display circuit, described sensor circuit is electrically connected with amplification and rectification circuit, amplification and rectification circuit is electrically connected with count decoding drive circuit, count decoding drive circuit respectively with single-shot trigger circuit, display circuit is electrically connected, it is characterized in that, described sensor circuit comprises sensor, amplification and rectification circuit comprises electric capacity C1, resistance R1, integrated chip IC1 and integrated chip IC5, one end ground connection of sensor, the other end respectively with one end of electric capacity C1, one end of resistance R1, the input of integrated chip IC1 connects, electric capacity C1, the other end of resistance R1 is connected with the outfan of integrated chip IC1, the input of integrated chip IC5 is connected with the outfan of integrated chip IC1,

2. electronic pulsimeter circuit according to claim 1, is characterized in that, described sensor is HTD piezoelectric ceramic piece integrated sensor.