CN203116755U

CN203116755U - Integrative sensor and transducer combination

Info

Publication number: CN203116755U
Application number: CN 201320142031
Authority: CN
Inventors: 张宇; 李国强; 刘卫民; 赵丹; 戚本志
Original assignee: Harbin Vocational and Technical College
Current assignee: Harbin Vocational and Technical College
Priority date: 2013-03-26
Filing date: 2013-03-26
Publication date: 2013-08-07
Anticipated expiration: 2023-03-26

Abstract

The utility model relates to the field of industrial automation, in particular relates to an integrative sensor and transducer combination which is used for electrical control and solves the problem that corresponding signal conversion circuits are designed for sensors in order to adapt to various actuators in the field of industrial automation. In practical application of the integrative sensor transducer combination, firstly, types of inputted sensors are selected through a first single-pole double-throw switch S1, secondly, types of drive signals of to-be-driven actuators are selected through a second single-pole double-throw switch S2, and further current output sensors can directly drive voltage-driven actuators, meanwhile, voltage output sensors can directly drive current-driven actuators. The integrative sensor transducer combination is applicable to existing industrial automation fields.

Description

The integrated transducer transmitter

Technical field

The utility model relates to a kind of integrated transducer transmitter, is used for electrical control in the industrial automation field, realizes integrated control.

Background technology

Along with the raising of development of electronic technology and automatic technology, sensor technology is applied in increasing technical field, and its major function is to change various physical characteristicss into electrology characteristic, thereby realizes the automatic detection of various parameters.

At present, the sensor that uses in the industrial automation is a kind of pick-up unit, can experience measured physical message, and the physical message that detection can be experienced is for conversion into electric signal output according to certain rules, to satisfy requirements such as transmission of Information, conditioning, conversion, processing and control.It is the primary link of realizing detection automatically and automatic control.

This kind sensor is when practical application, need be at the concrete corresponding signal conditioning circuit of design that needs, and then convert the signal of sensor output to need signal form, and existing industrial automation field, often need to adopt sensor to gather signal and directly drive some topworkies and work, and the signal that the form of the driving signal that topworks needs and sensor are exported is different, and this just need design corresponding circuit for each topworks and corresponding sensor.

The utility model content

The purpose of this utility model is exactly in order to solve in the industrial automation field, will be at the problem of the signaling conversion circuit of sensor design correspondence in order to adapt to each topworks.This new design a kind of integrated transducer transmitter.

Integrated transducer transmitter described in the utility model, it comprises that current-output type sensor interface, first signal conditioning circuit, I/V change-over circuit, voltage output type sensor interface, secondary signal modulate circuit, first single-pole double-throw switch (SPDT), A/D converter, processor, D/A converter, first amplifying circuit and voltage drive interface;

The current signal output end of current-output type sensor interface connects the signal input part of first signal conditioning circuit, the signal output part of first signal conditioning circuit connects the current signal input end of I/V change-over circuit, the voltage signal output end of I/V change-over circuit connects a quiet end of first single-pole double-throw switch (SPDT), the signal output part of voltage output type sensor interface connects the input end of secondary signal modulate circuit, the signal output part of secondary signal modulate circuit connects another quiet end of first single-pole double-throw switch (SPDT), and the moved end of first single-pole double-throw switch (SPDT) connects the input end of analog signal of A/D converter;

The digital signal output end of A/D converter connects the signal input part of processor, the signal output part of processor connects the digital signal input end of D/A converter, the analog signal output of D/A converter connects the signal input part of first amplifying circuit, and the signal output part of first amplifying circuit connects the signal input part that voltage drives interface.

Integrated transducer transmitter described in the utility model provides the function switching signal between the driving signal of signal of sensor and topworks.It provides the interface with existing amperometric sensor and voltage sensor, can be applicable to existing standardization sensor.It also provides voltage to drive interface, can with the driving phase adjust signal of the topworks of industrial automation.

Integrated transducer transmitter described in the utility model is applicable to the on-the-spot use of existing industrial automation.

Description of drawings

Fig. 1 is the electrical structure synoptic diagram of embodiment one described integrated transducer transmitter, and Fig. 2 is the electrical structure synoptic diagram of embodiment two described integrated transducer transmitters.

Embodiment

Embodiment one: present embodiment is described below in conjunction with Fig. 1, the described integrated transducer transmitter of present embodiment, it comprises that current-output type sensor interface 1, first signal conditioning circuit 2, I/V change-over circuit 3, voltage output type sensor interface 4, secondary signal modulate circuit 5, the first single-pole double-throw switch (SPDT) S1, A/D converter 6, processor 7, D/A converter 8, first amplifying circuit 9 and voltage drive interface 10;

The current signal output end of current-output type sensor interface 1 connects the signal input part of first signal conditioning circuit 2, the signal output part of first signal conditioning circuit 2 connects the current signal input end of I/V change-over circuit 3, the voltage signal output end of I/V change-over circuit 3 connects the quiet end of the first single-pole double-throw switch (SPDT) S1, the signal output part of voltage output type sensor interface 4 connects the input end of secondary signal modulate circuit 5, the signal output part of secondary signal modulate circuit 5 connects another quiet end of the first single-pole double-throw switch (SPDT) S1, and the moved end of the first single-pole double-throw switch (SPDT) S1 connects the input end of analog signal of A/D converter 6;

The digital signal output end of A/D converter 6 connects the signal input part of processor 7, the signal output part of processor 7 connects the digital signal input end of D/A converter 8, the analog signal output of D/A converter 8 connects the signal input part of first amplifying circuit 9, and the signal output part of first amplifying circuit 9 connects the signal input part that voltage drives interface 10.

Embodiment two: present embodiment is described below in conjunction with Fig. 2, present embodiment is to the further restriction of embodiment one described integrated transducer transmitter, the described integrated transducer transmitter of present embodiment also comprises the second single-pole double-throw switch (SPDT) S2, V/I change-over circuit 11, second amplifying circuit 12 and current drives interface 13, the analog signal output of D/A converter 8 connects the moved end of the second single-pole double-throw switch (SPDT) S2, the quiet end of the second single-pole double-throw switch (SPDT) S2 connects the signal input part of first amplifying circuit 9, the quiet end of another of second single-pole double-throw switch (SPDT) (S2) connects the voltage signal input end of V/I change-over circuit 11, the current signal output end of V/I change-over circuit 11 connects the signal input part of second amplifying circuit 12, and the signal output part of second amplifying circuit 12 connects the signal input part of current drives interface 13.

In the present embodiment, by having increased by the second single-pole double-throw switch (SPDT) S2, carry out the switching between the circuit, and then realize that output current drives the function of signal, and then can realize the function of the topworks that drive current is driving.

The described integrated transducer transmitter of present embodiment is when practical application, at first, select the type of sensor of input by the first single-pole double-throw switch (SPDT) S1, then, select the type of the driving signal of topworks to be driven by the second single-pole double-throw switch (SPDT) S2, and then can realize simultaneously: the current-output type sensor is the direct driving topworks of drive current type of the driving topworks of driving voltage, voltage output type sensor directly.

In sum, circuit structure of the present utility model is simple, can be applicable to existing standardization sensor, can with the driving phase adjust signal of the topworks of industrial automation, adapting to each topworks will be at the signaling conversion circuit of sensor design correspondence.

Claims

1. integrated transducer transmitter is characterized in that: it comprises that current-output type sensor interface (1), first signal conditioning circuit (2), I/V change-over circuit (3), voltage output type sensor interface (4), secondary signal modulate circuit (5), first single-pole double-throw switch (SPDT) (S1), A/D converter (6), processor (7), D/A converter (8), first amplifying circuit (9) and voltage drive interface (10);

The current signal output end of current-output type sensor interface (1) connects the signal input part of first signal conditioning circuit (2), the signal output part of first signal conditioning circuit (2) connects the current signal input end of I/V change-over circuit (3), the voltage signal output end of I/V change-over circuit (3) connects a quiet end of first single-pole double-throw switch (SPDT) (S1), the signal output part of voltage output type sensor interface (4) connects the input end of secondary signal modulate circuit (5), the signal output part of secondary signal modulate circuit (5) connects another quiet end of first single-pole double-throw switch (SPDT) (S1), and the moved end of first single-pole double-throw switch (SPDT) (S1) connects the input end of analog signal of A/D converter (6);

The digital signal output end of A/D converter (6) connects the signal input part of processor (7), the signal output part of processor (7) connects the digital signal input end of D/A converter (8), the analog signal output of D/A converter (8) connects the signal input part of first amplifying circuit (9), and the signal output part of first amplifying circuit (9) connects the signal input part that voltage drives interface (10).

2. integrated transducer transmitter according to claim 1, it is characterized in that: it also comprises second single-pole double-throw switch (SPDT) (S2), V/I change-over circuit (11), second amplifying circuit (12) and current drives interface (13), the analog signal output of D/A converter (8) connects the moved end of second single-pole double-throw switch (SPDT) (S2), a quiet end of second single-pole double-throw switch (SPDT) (S2) connects the signal input part of first amplifying circuit (9), the quiet end of another of second single-pole double-throw switch (SPDT) (S2) connects the voltage signal input end of V/I change-over circuit (11), the current signal output end of V/I change-over circuit (11) connects the signal input part of second amplifying circuit (12), and the signal output part of second amplifying circuit (12) connects the signal input part of current drives interface (13).