CN201348620Y

CN201348620Y - Octane number gasoline tester capable of detecting carbinol and ethanol simultaneously

Info

Publication number: CN201348620Y
Application number: CNU2008202284239U
Authority: CN
Inventors: 张刚柱
Original assignee: Xian Tianhou Filter Technology Co Ltd
Current assignee: Xian Tianhou Filter Technology Co Ltd
Priority date: 2008-12-24
Filing date: 2008-12-24
Publication date: 2009-11-18
Anticipated expiration: 2018-12-24

Abstract

The utility model relates to an octane number gasoline tester capable of detecting carbinol and ethanol simultaneously, which not only can be used to detect the octane number, but also can detect gasoline which contains carbinol and ethanol. The tester comprises a controller, wherein the controller is connected with a sensor, and a fixed capacitance is connected on a circuit of the sensor in series. The controller comprises a single chip microcomputer, wherein the single chip microcomputer is connected with the sensor through an oscillating circuit, and a capacitance is connected on the oscillating circuit in series. The single chip microcomputer is an MSP43OF135 single chip microcomputer. The sensor is a three-barrel big volume sensor and comprises a base, wherein an outer barrel casing is arranged on the base, a middle barrel casing is arranged in the outer barrel casing, an inner barrel casing is arranged in the middle barrel casing, and a temperature probe is arranged in the inner barrel casing.

Description

A kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously

One, technical field:

The utility model relates to a kind of gasoline tester, especially relates to a kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously.

Two, background technology:

In the background technology, the product of surveying octane value in the market has several, but the product that can survey octane value and methanol and ethanol gasoline content does not also have at present.First and second alcohol have electric conductivity preferably, and the electric conductivity of gasoline increases greatly after adding the first and second an amount of alcohol in the gasoline, directly causes octane value testing circuit failure of oscillation, can't operate as normal.

Three, utility model content:

The utility model provides a kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously in order to solve the weak point in the above-mentioned background technology, and it can not only survey octane value, and can survey and contain methanol and ethanol gasoline.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously is characterized in that: comprise controller, controller is connected with sensor, is in series with fixed capacity on the sensor circuit.

Above-mentioned controller comprises single-chip microcomputer, and single-chip microcomputer is connected with sensor by oscillatory circuit, and string has electric capacity on the oscillatory circuit.

Above-mentioned single-chip microcomputer is the MSP430F135 single-chip microcomputer.

The sensor is three high capacity sensors, comprises base, and base is provided with outer jacket casing, is middle sleeve in the outer jacket casing, is inner sleeve in the middle sleeve, is temp probe in the inner sleeve.

Compared with prior art, the advantage and the effect that the utlity model has are as follows:

The method that the utility model adopts other crosstalk to hold has solved the difficult problem of testing circuit failure of oscillation, thereby makes instrument can not only survey octane value, and can survey and contain methanol and ethanol gasoline.

Four, description of drawings:

Fig. 1 is a connection block diagram of the present utility model;

Fig. 2 is an overall circuit schematic diagram of the present utility model;

Fig. 3 is the circuit theory diagrams of sensor;

Fig. 4 is the structural representation of sensor;

Fig. 5 is a software program flow chart of the present utility model.

Among the figure, the outer jacket casing of 1-, 2-middle sleeve, 3-inner sleeve, 4-temp probe, 5-base.

Five, embodiment:

The utility model first and second alcohol (octane value) gasoline tester is on octane value detector basis, for the detection of satisfying methanol and ethanol gasoline content is researched and developed.Referring to Fig. 1, controller comprises single-chip microcomputer, and single-chip microcomputer is connected with sensor by oscillatory circuit, is connected with giant-screen Chinese display device, keyboard and stabilized voltage supply on the single-chip microcomputer respectively.Testing circuit of the present utility model is divided into the two large divisions, and referring to Fig. 3, first is a sensor circuit, and the major function of this part circuit is to produce the different square-wave signal of frequency, and the variation of frequency is directly proportional with the content of first and second alcohol in the tested methanol and ethanol gasoline.Owing to adopted three jumbo sensors, make the sensitivity of sensor be improved, test is accurately.Common octane value can't detect the gasoline that contains first and second alcohol, and its main cause is: first and second alcohol have electric conductivity preferably, thereby cause the methanol and ethanol gasoline conductance to increase, and make common octane value detector oscillatory circuit failure of oscillation to detect.This instrument adopts sensor and fixed capacity to be in series, and makes oscillatory circuit energy operate as normal, and sensor can convert the gasoline that contains first and second alcohol to the square-wave signal of different frequency accurately, and this square-wave signal is delivered to ultra low-power microcontroller MSP430F135 and handled.Referring to Fig. 4, sensor is three high capacity sensors, comprises base, and base is provided with outer jacket casing, is middle sleeve in the outer jacket casing, is inner sleeve in the middle sleeve, is temp probe in the inner sleeve.Referring to Fig. 2, second portion is the MSP430F135 Single Chip Microcomputer (SCM) system.This system's major function is the square-wave signal that sensor is carried, and handles the content that demonstrates first and second alcohol in the tested methanol and ethanol gasoline at last by large-screen lc under the control of testing software.This instrument also has touch keyboard and interface circuit in addition.The function of keyboard is to manipulate instrument, selects different types of gasoline.Interface circuit can be realized this instrument and peripherals such as printer, and computer link realizes that data transmit and handle.

Referring to Fig. 4, sensor is three high capacity sensors, comprises base 5, and base 5 is provided with outer jacket casing 1, is middle sleeve 2 in the outer jacket casing 1, is inner sleeve 3 in the middle sleeve 2, is temp probe 4 in the inner sleeve 3.

Referring to Fig. 5, Fig. 5 is a software program flow chart of the present utility model.

Claims

1, a kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously, it is characterized in that: comprise controller, controller is connected with sensor, is in series with fixed capacity on the sensor circuit.

2, a kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously according to claim 1, it is characterized in that: described controller comprises single-chip microcomputer, single-chip microcomputer is connected with sensor by oscillatory circuit.

3, a kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously according to claim 1 and 2, it is characterized in that: described single-chip microcomputer is the MSP430F135 single-chip microcomputer.

4, a kind of octane value gasoline tester that can detect methyl alcohol and ethanol simultaneously according to claim 1 and 2, it is characterized in that: described sensor is three high capacity sensors, comprise base (5), base (5) is provided with outer jacket casing (1), in the outer jacket casing (1) is middle sleeve (2), in the middle sleeve (2) is inner sleeve (3), is temp probe (4) in the inner sleeve (3).