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Method for simulating standard suction of smoking machine by stepping motor

A stepper motor, smoking machine technology, used in the testing of machine/structural components, measuring devices, instruments, etc.

Inactive Publication Date: 2017-12-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although there are many methods to achieve the standard suction of smoking machines at home and abroad, the method of using stepper motors to simulate the standard suction of smoking machines by setting the frequency and time of 7 motion strokes has not yet appeared.

Method used

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  • Method for simulating standard suction of smoking machine by stepping motor
  • Method for simulating standard suction of smoking machine by stepping motor
  • Method for simulating standard suction of smoking machine by stepping motor

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Experimental program
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Embodiment

[0041] Such as figure 1 As shown, it is a schematic diagram of the experiment of measuring the outlet pressure of the cigarette and the stepping motor simulating the standard smoking of the smoking machine in this embodiment, including: cigarette 1, pressure gauge contact probe socket 2, stepping motor 3, suction device 4, control Box 5.

[0042] Based on the above experimental schematic diagram, as figure 2 As shown, the method for the stepping motor of the present embodiment to simulate the standard smoking of the smoking machine includes the following steps:

[0043] (1) Approximate the bell-shaped flow diagram of the standard suction of the smoking machine as a parabola Q=At 2 +Bt, and divide the parabola into 7 time equal parts according to the abscissa, and the median time of each part is t1 , t 2 ,...,t 7 , and find its corresponding flow value Q 1 , Q 2 ,...,Q 7 ;

[0044] Approximate the bell-shaped flow diagram of the standard suction of the smoking machine ...

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Abstract

The invention discloses a method for simulating standard suction of a smoking machine by a stepping motor. The standard suction speed of a common smoking machine is 35ml in two seconds, and the standard suction frequency is one time every 60 seconds. A smoke testing machine which is constructed by means of the stepping motor verifies a fact that the motion frequency of the stepping motor is proportional to the motion frequency of the stepping motor and pressure of a smoke branch outlet through experiments. According to a Darcy's law, on the condition of relatively low smoke speed, the pressure at the smoke branch outlet is proportional to the speed. Therefore the suction frequency of the stepping motor is proportional to the speed of the smoke branch outlet. The method comprises the steps of firstly, approximating a standard suction bell-shaped flow graph to a parabola Q=At2+Bt, then equally dividing the parabola to seven equal time segments along the transverse coordinate, taking the intermediate time of each equal time segment, calculating corresponding flows Q1, Q2, . . . Q7, setting the frequency of the stepping motor to corresponding H1, H2, . . .H3, setting the time to T1=T2=...T7=0.286, and furthermore in a time period of 2s, the stepping motor rightly sucks 35ml.

Description

technical field [0001] The invention relates to the technical field of simulating the standard puff of a smoking machine, in particular to a method for simulating the standard puff of a smoking machine by a stepping motor. Background technique [0002] At present, the method for realizing the standard suction of the smoking machine mainly combines solenoid valve control, stepping motor drive, pump suction, etc. to realize the standard suction of the smoking machine. For example, the SM400 smoking machine produced by foreign Filtrona company, the RM20 / CS produced by Borgwaldt company, the YC-81 smoking machine developed by Zhengzhou Tobacco Research Institute in China, etc., these smoking machines can control the stepping motor and pump through the control circuit movement to achieve the bell-shaped flow diagram of the standard puff of the smoking machine. [0003] Although there are many methods to realize the standard puffing of smoking machines at home and abroad, the met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 曾劲松杜亮唐大荣
Owner SOUTH CHINA UNIV OF TECH
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