CN213067635U - Acquisition circuit of precision displacement measuring instrument - Google Patents
Acquisition circuit of precision displacement measuring instrument Download PDFInfo
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- CN213067635U CN213067635U CN202021551777.4U CN202021551777U CN213067635U CN 213067635 U CN213067635 U CN 213067635U CN 202021551777 U CN202021551777 U CN 202021551777U CN 213067635 U CN213067635 U CN 213067635U
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Abstract
The utility model provides an accurate displacement measurement appearance acquisition circuit, including master control circuit, master control circuit's signal input part has displacement sensor through analog-to-digital conversion circuit connection, master control circuit's signal output part connects communication circuit, communication circuit's signal transmission end connects the host computer, be connected with the function button on master control circuit's the control port, carry out the function setting to master control circuit through the function button, the data signal that displacement sensor gathered is through analog-to-digital conversion circuit with analog quantity conversion to digital quantity, handle digital quantity displacement signal transmission to master control circuit, master control circuit passes through communication circuit with displacement data and transmits to the host computer. The utility model discloses a function button makes things convenient for the staff to carry out the processing operation to mark and measured data of passageway switching, standard component, and sensor amplifier circuit can match the different displacement sensor of the same kind of type, makes things convenient for staff's different measurement work, can provide more audio-visual measuring result for the staff through the display that sets up.
Description
Technical Field
The utility model belongs to the technical field of measuring equipment data communication circuit technique and specifically relates to an accurate displacement measurement appearance acquisition circuit.
Background
The displacement measuring instrument is a mechanical quantity measuring instrument for measuring linear displacement or angular displacement of a rigid body during translation or rotation, is used for measuring the geometric parameters such as size and surface shape of mechanical displacement and mechanical parts, and continuously measuring the geometric dimensions of steel plates, paper, rubber and the like in the processing process, and consists of modules such as a displacement sensor, a measurement processing circuit, data transmission equipment and the like, and the displacement sensor can be divided into an analog displacement sensor and a digital displacement sensor according to the type of an output signal. Most of the existing displacement measuring instruments can only measure displacement data, and the collected displacement data is transmitted to an external display device to be directly displayed, so that the collected data cannot be processed and the standard of a standard component cannot be aligned.
Therefore, in order to overcome the defect of lack of data processing of the conventional displacement measuring instrument, an acquisition processing circuit of the precision displacement measuring instrument needs to be designed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's is not enough, provide a displacement measuring apparatu that can carry out the passageway and switch.
The utility model provides a its technical problem take following technical scheme to realize:
a precision displacement gauge acquisition circuit comprising:
the main control circuit is used for processing and transmitting data collected by the measuring instrument;
the analog-to-digital conversion circuit is used for converting the acquired analog data into digital quantity and sending the digital quantity to the main control circuit;
the communication circuit is used for transmitting the data processed by the main control circuit;
the signal input part of the master control circuit is connected with a displacement sensor through the analog-to-digital conversion circuit, the signal output part of the master control circuit is connected with the communication circuit, the signal transmission end of the communication circuit is connected with an upper computer, a control port of the master control circuit is connected with a function key, the function setting is carried out on the master control circuit through the function key, a data signal collected by the displacement sensor converts an analog quantity into a digital quantity through the analog-to-digital conversion circuit, the digital quantity displacement signal is transmitted to the master control circuit for data processing, and the master control circuit transmits processed displacement data to the upper computer through the communication circuit so as to enable a worker to carry out data arrangement statistics.
Preferably, the output end of the main control circuit is further connected with a display, and the display is an LED liquid crystal display screen and is used for displaying real-time displacement data measured by the displacement sensor and the current configuration of the main control circuit.
Preferably, a sensor amplifying circuit is further arranged between the analog-to-digital conversion circuit and the displacement sensor, and the sensor amplifying circuit is used for amplifying data acquired by the displacement sensor and transmitting the data to the analog-to-digital conversion circuit.
Preferably, the function keys include a channel key, a zero key and a reverse key, the channel key is used for switching the data transmission channel, the zero key is used for calibrating the current transmission channel value to zero, and the reverse key is used for reversing the current transmission channel value.
Preferably, the power supply end of the main control circuit is connected with a power conversion circuit, and the power conversion circuit is used for converting an alternating current 220V power voltage into a direct current +/-12V voltage and a direct current 5V voltage.
Preferably, the power supply end of the sensor amplifying circuit is connected with the direct current +/-12V output voltage of the power conversion circuit.
Preferably, the power supply end of the communication circuit is connected with the direct current 5V output voltage of the power conversion circuit.
Preferably, the data transmission protocol of the communication circuit is RS 232.
The utility model has the advantages that:
the utility model discloses a function button includes the passageway key, decides the zero key and gets the reversal key three, makes things convenient for the staff to carry out the processing operation to mark and measured data of passageway switching, standard component, and sensor amplifier circuit can match the different displacement sensor of the same kind type, makes things convenient for staff's different measurement, can provide more audio-visual measuring result for the staff through the display that sets up.
Drawings
Fig. 1 is a schematic diagram of the circuit connection structure of the present invention;
fig. 2 is a schematic connection diagram of the main control circuit of the present invention;
fig. 3 is a schematic connection diagram of the analog-to-digital conversion circuit of the present invention;
fig. 4 is a schematic connection diagram of the sensor amplifier circuit of the present invention;
fig. 5 is a schematic connection diagram of the communication circuit of the present invention;
fig. 6 is a schematic connection diagram of the upper computer interface of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
as shown in FIG. 1, the acquisition circuit of the precision displacement measuring instrument of the present invention comprises a main control circuit, the main control circuit is used for processing and transmitting the data acquired by the measuring instrument, the signal input terminal of the main control circuit is connected with a displacement sensor through an analog-to-digital conversion circuit, the analog-to-digital conversion circuit is used for converting the acquired analog data into digital data and transmitting the digital data to the main control circuit, the signal output terminal of the main control circuit is connected with a communication circuit, the communication circuit is used for transmitting the data processed by the main control circuit, the signal transmission terminal of the communication circuit is connected with an upper computer, the control port of the main control circuit is connected with a function button, the function button is used for setting the function of the main control circuit, the data signal acquired by the displacement sensor is converted into digital data through the analog-to-digital conversion circuit, the main control circuit transmits the processed displacement data to an upper computer through a communication circuit so that workers can carry out data arrangement and statistics.
Further, as shown in fig. 2 and 3, the model of the control chip of the main control circuit is LPC1113FBD48, the DATA pin thereof transmits DATA to the liquid crystal display in real time, the CS pin controls the liquid crystal display, the WR pin writes commands to the liquid crystal, the model of the control chip of the analog-to-digital conversion circuit is MAX1033BEUP, and the CH0 pin-CH 3 pin thereof is connected to the terminal of the control chip of the sensor amplification circuit.
Furthermore, the output end of the main control circuit is also connected with a display, the display is an LED liquid crystal display screen and is used for displaying real-time displacement data measured by the displacement sensor and the current configuration of the main control circuit, and data information can be more intuitively reflected to workers.
Further, as shown in fig. 4, a sensor amplifying circuit is further disposed between the analog-to-digital conversion circuit and the displacement sensor, a control chip of the sensor amplifying circuit is AD698APZ, the sensor amplifying circuit is used for amplifying data acquired by the displacement sensor and transmitting the amplified data to the analog-to-digital conversion circuit, a SIGOUT pin of the sensor amplifying circuit is connected with an output end of the displacement sensor, the sensor amplifying circuit is a power amplifier circuit, and since the power of an acquired signal of the displacement sensor is low, the acquired signal can be processed by the main control circuit after being amplified, and in addition, the sensor amplifying circuit has a function of stabilizing filtering.
Further, the function keys comprise a channel key, a zero setting key and a negation key, wherein the channel key is used for switching the data transmission channel, the zero setting key is used for calibrating the current transmission channel value to zero, and the negation key is used for negating the current transmission channel value.
Furthermore, the power supply end of the main control circuit is connected with a power supply conversion circuit, the power supply conversion circuit is used for converting alternating current 220V power supply voltage into direct current +/-12V and direct current 5V voltage, the power supply end of the sensor amplification circuit is connected with the direct current +/-12V output voltage of the power supply conversion circuit, and the power supply end of the communication circuit is connected with the direct current 5V output voltage of the power supply conversion circuit.
Further, as shown IN fig. 5 and 6, the model of the control chip of the communication circuit is MAX232, the data transmission protocol is RS232, the T1 OUT pin and the R1 IN pin of the communication circuit are connected to the 2 pin and the 3 pin of the host computer interface, and the TXD pin and the RXD pin are connected to the port of the main control chip of the main control circuit, so as to perform data communication between the main control circuit and the host computer.
When the displacement measuring instrument is concretely implemented, the displacement measuring instrument is connected with an alternating current 220V power supply, a power switch is turned on, a power supply conversion circuit converts the voltage of the alternating current 220V power supply into direct current +/-12V and direct current 5V power supply voltages and respectively supplies the direct current +/-12V and direct current 5V power supply voltages to a sensor amplification circuit and a communication circuit, the LVDT displacement sensor is connected, the sensor amplification circuit converts analog quantity data returned by the displacement sensor into digital quantity and sends the digital quantity to a main control circuit, the main control circuit controls a liquid crystal display screen to display numerical values in real time and display current configuration in real time according to the operation of keys, the communication circuit transmits the measured data to an upper computer in real time, the current channel can be configured when a channel key is pressed to jump to a channel standard value, the current channel can be zeroed when the channel standard value jumps, the current channel value can be negated when the channel standard value is, and meanwhile, the zero setting key and the negation key are pressed for a long time until the sensor is in a standard value jumping state, and the type of the displacement sensor can be matched with the required multiplying power by pressing the zero setting key or the negation key and switching.
The utility model discloses a function button includes the passageway key, decides the zero key and gets the reversal key three, makes things convenient for the staff to carry out the processing operation to mark and measured data of passageway switching, standard component, and sensor amplifier circuit can match the different displacement sensor of the same kind type, makes things convenient for staff's different measurement, can provide more audio-visual measuring result for the staff through the display that sets up.
It should be emphasized that the embodiments described herein are illustrative and not restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but also falls within the scope of the present invention, in any other embodiments derived by those skilled in the art according to the technical solutions of the present invention.
Claims (2)
1. The utility model provides a precision displacement measurement appearance acquisition circuit which characterized in that: the method comprises the following steps:
the main control circuit is used for processing and transmitting data collected by the measuring instrument, the power supply end of the main control circuit is connected with a power supply conversion circuit, and the power supply conversion circuit is used for converting alternating current 220V power supply voltage into direct current +/-12V and direct current 5V voltage;
the analog-to-digital conversion circuit is used for converting the acquired analog data into digital quantity and sending the digital quantity to the main control circuit;
the communication circuit is used for transmitting the data processed by the main control circuit;
the signal input end of the main control circuit is connected with a displacement sensor through the analog-to-digital conversion circuit, a sensor amplification circuit is arranged between the analog-to-digital conversion circuit and the displacement sensor and used for amplifying data collected by the displacement sensor and transmitting the data to the analog-to-digital conversion circuit, the signal output end of the main control circuit is connected with the communication circuit, the data transmission protocol of the communication circuit is RS232, the signal transmission end of the communication circuit is connected with an upper computer, a control port of the main control circuit is connected with a function key which is used for carrying out function setting on the main control circuit, a data signal collected by the displacement sensor converts an analog quantity into a digital quantity through the analog-to-digital conversion circuit and then transmits the digital quantity displacement signal to the main control circuit for data processing, and the main control circuit transmits the processed displacement data to the upper computer through the communication circuit, the function keys comprise a channel key, a zero-setting key and a negation key, the channel key is used for switching a data transmission channel, the zero-setting key is used for calibrating a current transmission channel value to zero, the negation key is used for negation of the current transmission channel value, a power supply end of the sensor amplification circuit is connected with a direct current +/-12V output voltage of the power conversion circuit, and a power supply end of the communication circuit is connected with a direct current 5V output voltage of the power conversion circuit.
2. The precision displacement measuring instrument acquisition circuit according to claim 1, wherein: the output end of the main control circuit is also connected with a display, and the display is an LED liquid crystal display screen and is used for displaying real-time displacement data measured by the displacement sensor and the current configuration of the main control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021551777.4U CN213067635U (en) | 2020-07-30 | 2020-07-30 | Acquisition circuit of precision displacement measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021551777.4U CN213067635U (en) | 2020-07-30 | 2020-07-30 | Acquisition circuit of precision displacement measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213067635U true CN213067635U (en) | 2021-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021551777.4U Active CN213067635U (en) | 2020-07-30 | 2020-07-30 | Acquisition circuit of precision displacement measuring instrument |
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|---|---|
| CN (1) | CN213067635U (en) |
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2020
- 2020-07-30 CN CN202021551777.4U patent/CN213067635U/en active Active
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