CN205593618U - Air mass flow meter sensor input/output characteristic measurement experiment case - Google Patents
Air mass flow meter sensor input/output characteristic measurement experiment case Download PDFInfo
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- CN205593618U CN205593618U CN201620205856.7U CN201620205856U CN205593618U CN 205593618 U CN205593618 U CN 205593618U CN 201620205856 U CN201620205856 U CN 201620205856U CN 205593618 U CN205593618 U CN 205593618U
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- mass flow
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- air mass
- flow sensor
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Abstract
The utility model discloses an air mass flow meter sensor input/output characteristic measurement experiment case, including upper plate, lower plate, ecu, air mass flow sensor, intake temperature sensor, air -blower, heating wire, three fender manual knob switches, inlet channel, power module. A liquid crystal display module, the 2nd liquid crystal display module lie in the upper plate of experimental box, ecu, air mass flow sensor, air -blower, and heating wire, three fender manual knob switches, inlet channel, intake temperature sensor and power module lie in the lower plate of experimental box and are equipped with binding post. The utility model discloses can ocular demonstration air mass flow sensor theory of operation to can get into the velocity of flow and the flow of air mass flow sensor air through manual knob switching regulator, be convenient for measure the input/output characteristic of air mass flow sensor when different air input, the input/output characteristic of nimble analysis air mass flow sensor, supplementary experiment teaching, and design principle simple and practical.
Description
Technical field
This utility model relates to a kind of experimental box, is specially a kind of air mass flow flowmeter sensor input-output characteristic test experience case.
Background technology
Air flow sensor is vital signal pickup assembly in automobile engine and chassis electronic control technology.Air flow sensor is divided into D type (pressure-type) and L-type (air mass flow type).Carry out the Characteristics Detection of air flow sensor at laboratory, general experimental provision is all to provide wind-force to be converted into the signal of telecommunication by use hair drier to air throttle show or use circuit tester to survey its signal voltage, obtaining characteristic relation.This utility model device, by using aerator to divide gear to provide air inflow and heating wire to provide intake air temperature, obtains experimental result LCDs by the size of the different wind-force of regulation and can show that real time data, record data draw performance diagram.The detection to result is only focused on in current many experimental provisions, and have ignored the checking to process, make student cannot obtain this problem of signal voltage of each terminal of sensor during detection targetedly, the present invention is by being integrated in air mass flow flowmeter sensor, electronic control unit and liquid crystal indicator in an experimental box, flexible and convenient to use, at inlet channel, add adjustable manual knob and electric-heating-wire-heating simultaneously, can the most arbitrarily regulate current air inflow and then realize the regulation of temperature, to obtain corresponding output signal voltage.Additionally, the junction of each lead-out terminal of sensor and electronic control unit is equipped with detection terminal, it is simple to signal detection.It is easy to observation of students analysis, is easily understood easy to operate simultaneously, help student to understand and study, can use as teaching and experimental facilities.
Summary of the invention
Solve the technical problem that
In place of the deficiencies in the prior art, the utility model proposes a kind of air mass flow flowmeter sensor input-output characteristic test experience case.
Technical scheme
A kind of air mass flow flowmeter sensor input-output characteristic test experience case, the upper plate including casing, being positioned at casing and lower shoe, upper plate is provided with the first LCDs and the second LCDs, and lower shoe is provided with electronic control unit, power module, air flow sensor, intake air temperature sensor and inlet channel；Inlet channel is connected with the air inlet of air flow sensor, air flow sensor is connected with electronic control unit, intake air temperature sensor is positioned at inlet channel and is connected with electronic control unit, first LCDs is connected with electronic control unit and shows the output voltage of air flow sensor, and the second LCDs is connected with intake air temperature sensor and shows intake air temperature；Characterized by further comprising aerator, heating wire and three blocks to move rotary switch, aerator and heating wire and be positioned at inlet channel and be connected with electronic control unit respectively, three blocks move rotary switch and are connected with aerator aerator is carried out shift control.
Binding post it is provided with between electronic control unit and air flow sensor and the line of temperature sensor.
Described power module is accumulator.
Beneficial effect
A kind of air mass flow flowmeter sensor input-output characteristic test experience case that the utility model proposes, compared with prior art has the advantage that
This utility model is by air flow sensor, aerator, heating wire, aerator, intake air temperature sensor, three blocks move rotary switch, electronic control unit and signal output display device and power module are integrated in an experimental box, achieve portable use, add heating wire and aerator at air intake duct simultaneously, intake air temperature change modeling and air inlet wind speed three gear regulation can be realized, and intake air temperature and current sensor output signal are shown by LCD MODULE, the sensor output voltage that Current Temperatures is corresponding with during air inflow can be read easily, can realize detecting air flow sensor input-output characteristic flexibly, conveniently analyze with theoretical characteristics, deepen student further to air flow sensor operation principle and the understanding of operating characteristic, it it is a kind of simple and practical experimental provision.
Accompanying drawing explanation
Fig. 1 air flow sensor input-output characteristic experimental box structure chart
1-upper plate；2-lower shoe；3-electronic control unit；4-power module；5-air flow sensor；6-aerator；7-heating wire；8-the first LCDs；9-the second LCDs；10-tri-block moves rotary switch；11-intake air temperature sensor；12-inlet channel.
Detailed description of the invention
In conjunction with embodiment, accompanying drawing, the invention will be further described:
As it is shown in figure 1, this utility model air flow sensor input-output characteristic test experience case includes that upper plate 1, lower shoe 2, electronic control unit 3, power module 4, air flow sensor 5, aerator 6, heating wire the 7, first LCDs the 8, second LCDs 9, three block move rotary switch 10, intake air temperature sensor 11, inlet channel 12 and binding post 13.Hot diaphragm type air flow sensor is connected with electronic control unit, electronic control unit provide 5V benchmark job voltage for sensor, and the voltage gathering signal is exported to electronic control unit by hot diaphragm type air flow sensor；LCD MODULE is controlled by an electronic control unit, and electronic control unit provides running voltage for heating wire and aerator simultaneously, and controls the electric-heating-wire-heating time, and aerator gear is controlled by three gear rotary switches.
Manually regulate three blocks and move the air inflow in rotary switch regulation entrance air channel, make intake air temperature change by the work of heater strip simultaneously, affect the change of output voltage, exported by LCD MODULE, it is hereby achieved that the output voltage values that air flow sensor is under varying input signal.Binding post 13 can measure the voltage signal of mass air flow sensor output in real time.Power module is provided by D.C. regulated power supply and is equivalent to the 12V DC voltage-stabilizing electricity that automobile storage battery provides.
The purpose of this utility model is to provide one can ocular demonstration operation principle, simultaneously facilitate student to measure and its input-output characteristic of observation analysis, and analyze with sensor theoretical characteristics, it is simple to understanding, easy and simple to handle, low cost, be the experimental provision that a kind of practicality is stronger.
Air flow sensor input-output characteristic test experience case, including a hot diaphragm type air flow sensor, electronic control unit, the first LCD MODULE, the second LCD MODULE, heating wire, aerator, intake air temperature sensor, three gear rotary switches, power module and binding post；Electronic control unit be air flow sensor provide 5V benchmark job voltage, power module provide be equivalent to accumulator 12V direct-current working volts, the second LCD MODULE, the first LCD MODULE are respectively used to show current intake air temperature and air flow sensor output voltage signal, aerator and heating wire are positioned in air flow sensor forward air inlet passage, for simulating the change of air inflow and intake air temperature, it is provided with connects lower terminal at working sensor voltage and output voltage wiring junction, it is simple to the detection signal of telecommunication；
Upper plate and lower shoe lay respectively in proof box, are a kind of portable experimental provisions；
Air flow sensor, is provided the size of the wind-force simulation air inflow of three gears, and is heated, by heating wire, the air entered, simulate different intake air temperature by aerator.Intake air temperature sensor is measured and is entered the intake air temperature of air duct and show in the second LCD MODULE, and air flow sensor shows in the first LCD MODULE at the output voltage of various inlet temperature and air inflow, it is simple to student's record analysis.
Claims (3)
1. an air mass flow flowmeter sensor input-output characteristic test experience case, including casing, the upper end that is positioned at casing
Plate (1) and lower shoe (2), upper plate (1) is provided with the first LCDs (8) and the second liquid crystal display
Screen (9), lower shoe (2) is provided with electronic control unit (3), power module (4), air flow sensor
(5), intake air temperature sensor (11) and inlet channel (12)；Inlet channel (12) senses with air mass flow
The air inlet of device (5) is connected, and air flow sensor (5) is connected with electronic control unit (3), air inlet temperature
Degree sensor (11) is positioned at inlet channel (12) and is connected with electronic control unit (3), the first liquid crystal display
Screen (8) is connected with electronic control unit (3) and shows the output voltage of air flow sensor (5), the second liquid
Crystal display screen (9) is connected with intake air temperature sensor (11) and shows intake air temperature；Characterized by further comprising drum
Blower fan (6), heating wire (7) and three blocks move rotary switch (10), aerator (6) and heating wire (7)
Being positioned at inlet channel (12) to be connected with electronic control unit (3) respectively, three blocks move rotary switch (10)
It is connected with aerator (6) and aerator (6) is carried out gear control.
A kind of air mass flow flowmeter sensor input-output characteristic test experience case the most according to claim 1, its feature
Be electronic control unit (3) and air flow sensor (5) and temperature sensor (11) line it
Between be provided with binding post (13).
A kind of air mass flow flowmeter sensor input-output characteristic test experience case the most according to claim 1, its feature
It is that described power module (4) is accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620205856.7U CN205593618U (en) | 2016-03-17 | 2016-03-17 | Air mass flow meter sensor input/output characteristic measurement experiment case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620205856.7U CN205593618U (en) | 2016-03-17 | 2016-03-17 | Air mass flow meter sensor input/output characteristic measurement experiment case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205593618U true CN205593618U (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620205856.7U Expired - Fee Related CN205593618U (en) | 2016-03-17 | 2016-03-17 | Air mass flow meter sensor input/output characteristic measurement experiment case |
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| CN (1) | CN205593618U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168658A (en) * | 2018-02-06 | 2018-06-15 | 温州鼎程电子科技有限公司 | A kind of calibration facility of automobile air-flow sensor |
| CN111551759A (en) * | 2020-04-13 | 2020-08-18 | 中国电子科技集团公司第四十九研究所 | Test fixture for hot film type wind speed sensor unit |
-
2016
- 2016-03-17 CN CN201620205856.7U patent/CN205593618U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108168658A (en) * | 2018-02-06 | 2018-06-15 | 温州鼎程电子科技有限公司 | A kind of calibration facility of automobile air-flow sensor |
| CN108168658B (en) * | 2018-02-06 | 2024-06-07 | 温州鼎程电子科技有限公司 | Calibration equipment of automobile air flow sensor |
| CN111551759A (en) * | 2020-04-13 | 2020-08-18 | 中国电子科技集团公司第四十九研究所 | Test fixture for hot film type wind speed sensor unit |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20170317 |