CN203349854U - High precision digital sensor calibration test system based on PC machine - Google Patents
High precision digital sensor calibration test system based on PC machine Download PDFInfo
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- CN203349854U CN203349854U CN 201320401320 CN201320401320U CN203349854U CN 203349854 U CN203349854 U CN 203349854U CN 201320401320 CN201320401320 CN 201320401320 CN 201320401320 U CN201320401320 U CN 201320401320U CN 203349854 U CN203349854 U CN 203349854U
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Abstract
The utility model discloses a high precision digital sensor calibration test system based on a PC machine, including a computer, a digital calibration communication module and a digital sensor which are connected to each other in sequence. A 1W communication mode is adopted between the digital calibration communication module and the computer and between the digital calibration communication module and the digital sensor. The high precision digital sensor calibration test system based on the PC machine is simple in wiring mode, small in size, light in weight and flexible to operate, can complete test operations by means of one computer, and can complete sensor correction in the wild without dismounting a sensor from the system.
Description
Technical field
The utility model relates to technical field of measurement and test, in particular, and particularly a kind of high accuracy number pick up calibration test macro based on PC.
Background technology
Along with popularizing of digital sensor, its calibration testing means more and more are subject to people's attention.Because current numeric type sensor has two kinds of implementations: the SCM Based digital sensor of the first, it two is to adopt the designed digital sensor of special digital chip.Two kinds of implementations respectively have superiority, and wherein: single-chip microcomputer has the advantages such as powerful, flexible design, but because the design philosophy of single-chip microcomputer is universal design, integrated multiple function, so chip package is larger, pin is many, is not suitable for miniature sensor; And the special digital sensor chip has exactly met this demand, its application relatively single (it only is applied to sensor), therefore very little (can reach grade) that chip package can design, be highly suitable for miniaturization, microminiaturized sensor.No matter be based on single-chip microcomputer or the digital sensor based on the special digital chip, all can not be by self completing the calibration of sensor, must be by means of special-purpose truing tool, and current most of manufacturer does not provide calibration testing equipment, even the needs that part producer provides calibration testing equipment also to be difficult to meet the actual production debugging, the problem of its existence also: the more and volume of calibration test system parts, weight are large.
The utility model content
The purpose of this utility model is for there being the technical matters that volume and weight is large in prior art, and a kind of high accuracy number pick up calibration test macro based on PC is provided.
In order to solve problem set forth above, the technical solution adopted in the utility model is:
High accuracy number pick up calibration test macro based on PC, it comprises computing machine, digital calibration communication module and the digital transducer connected successively, and between described digital calibration communication module and computing machine, and between digital calibration communication module and digital sense all by the 1W communication pattern.
According to a preferred embodiment of the present utility model; Described digital calibration communication module comprises USB interface and the communication module be connected with USB interface and power module, and described USB interface is connected with computing machine, and described communication module all is connected with digital transducer with power module.
According to a preferred embodiment of the present utility model; Described communication module is the communication module with RS232 communication protocol.
Compared with prior art, the beneficial effects of the utility model are: this system wiring mode is simple, volume is little, lightweight, flexible operation, can complete test operation by means of a computing machine (as: notebook), and this system also can complete even in the wild sensor correction and without sensor is removed from system.
The accompanying drawing explanation
Fig. 1. be the frame diagram of the high accuracy number pick up calibration test macro based on PC of the present utility model.
Fig. 2. be the frame diagram of digital calibration communication module in the high accuracy number pick up calibration test macro based on PC of the present utility model.
Fig. 3. be the circuit diagram of power module in the digital calibration communication module of the high accuracy number pick up calibration test macro based on PC of the present utility model.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Consult shown in Fig. 1, the high accuracy number pick up calibration test macro based on PC that the utility model provides, it comprises computing machine, digital calibration communication module and the digital transducer connected successively, and between described digital calibration communication module and computing machine, and between digital calibration communication module and digital sense all by the 1W communication pattern.
Concrete, digital transducer only is connected (V+, V-, 1W) with three lines with the digital calibration communication module, and digital calibration communication module and computing machine only have a USB connecting line.Wherein, digital transducer can be selected with sensor chips such as ZMD31010,31050, PGA308.
Consult shown in Fig. 2, described digital calibration communication module comprises USB interface and the communication module be connected with USB interface and power module, and described USB interface is connected with computing machine, and described communication module all is connected with digital transducer with power module.Like this, because the digital calibration communication module adopts the USB interface feed, the digital calibration communication module can be digital transducer the 12V/5V common voltage is provided, and has saved the external power supply in the digital transducer calibration process.Simultaneously, can be at the inner integrated digital voltage/current of digital calibration communication module table, measuring accuracy can reach 0.01%, can meet the needs that digital transducer is produced fully.
Consult shown in Fig. 3, circuit diagram for power module, the digital calibration communication module be from USB interface feed (the common computer USB interface can provide the power supply of 5V/500mA), by the DC/DC module, the 5V power supply boosted as the 5V of isolation and 12V power supply single-chip microcomputer, AD and the sensor for the rear end digital transducer.The power supply of general digital transducer generally has 5V power supply and two kinds of patterns of the wide power voltage supply of 7-40V, therefore, the digital calibration Communication Module Design 5V and two groups of power supplies of 12V, 5V power supply precision wherein can reach 0.1%.
In the present embodiment, communication module is the communication module with RS-232 communication protocol.Adopt the RS-232 communication protocol of standard between digital calibration communication module and computing machine, communication format is that data are 8,1 start bit, 1 position of rest of 1 check bit sum, totally 11; The byte transfer sequence, first pass low level, a rear biography high position; For the multibyte binary number, first pass low byte, rear biography high byte; For floating number, first pass a high position, rear biography low level.The equal printenv of all broadcasting commands returns.
Generally speaking, the advantage of the test macro of the present embodiment is: the USB interface of computing machine (with the communication signal shared interface) is taken from the power supply of system, the demonstration of calibration figure is all by Computer display, and need not the external impressed current voltage table, simultaneously whole system is integrated in the housing that size is less, need not use other accessory, make the volume of system, weight greatly reduce; Utilize computing machine formidably data-handling capacity realize that lion is calibration testing and linearity and the temperature compensation of sensor, simplified control method, making original three lines regulate (voltage-regulation) and four lines, to regulate (electric current adjusting) be all three lines adjustings; Can realize automatically measuring the signal of digital transducer, understand the working sensor situation, and then provide foundation for pick up calibration.
Above-described embodiment is preferably embodiment of the utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (3)
1. the high accuracy number pick up calibration test macro based on PC, it is characterized in that: comprise the computing machine, digital calibration communication module and the digital transducer that connect successively, and between described digital calibration communication module and computing machine, and between digital calibration communication module and digital sense all by the 1W communication pattern.
2. the high accuracy number pick up calibration test macro based on PC according to claim 1, it is characterized in that: described digital calibration communication module comprises USB interface and the communication module be connected with USB interface and power module, described USB interface is connected with computing machine, and described communication module all is connected with digital transducer with power module.
3. the high accuracy number pick up calibration test macro based on PC according to claim 1, it is characterized in that: described communication module is the communication module with RS232 communication protocol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320401320 CN203349854U (en) | 2013-07-08 | 2013-07-08 | High precision digital sensor calibration test system based on PC machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320401320 CN203349854U (en) | 2013-07-08 | 2013-07-08 | High precision digital sensor calibration test system based on PC machine |
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| Publication Number | Publication Date |
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| CN203349854U true CN203349854U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320401320 Expired - Fee Related CN203349854U (en) | 2013-07-08 | 2013-07-08 | High precision digital sensor calibration test system based on PC machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679709A (en) * | 2017-01-03 | 2017-05-17 | 深圳市蜂联科技有限公司 | Air box thermal starting temperature measurement calibration method based on original data and timer |
| CN110553788A (en) * | 2019-09-06 | 2019-12-10 | 霍丁格包尔文(苏州)电子测量技术有限公司 | Calibration method of sensor signal transmitting device |
-
2013
- 2013-07-08 CN CN 201320401320 patent/CN203349854U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679709A (en) * | 2017-01-03 | 2017-05-17 | 深圳市蜂联科技有限公司 | Air box thermal starting temperature measurement calibration method based on original data and timer |
| CN106679709B (en) * | 2017-01-03 | 2019-02-01 | 深圳市蜂联科技有限公司 | Air box thermal starting temperature correction method based on initial data and timer |
| CN110553788A (en) * | 2019-09-06 | 2019-12-10 | 霍丁格包尔文(苏州)电子测量技术有限公司 | Calibration method of sensor signal transmitting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |