SU1396055A1 - Device for testing the quality of initial tobacco materials - Google Patents

Abstract

The invention relates to a measurement and information technology, namely, devices for monitoring the quality of raw tobacco and evaluating its smoking value. The purpose of the invention is to improve the accuracy of measuring the electrophysical parameters of tobacco raw materials. The high-frequency signal is received by the switch 9 of the sounding signals, which periodically connects the high-frequency magnetizing windings of the electrodynamic transducers 10. The signal-responses are evaluated and their maximum values are searched for, which allows. tuning the high-frequency path of the generator 1 of the controlled voltage to the frequency of the nuclear magnetic resonance (NMR). The spectrum analyzer unit 17 outputs the components of the exponential component of the signal-responses (constant time and amplitude values), then processes the received data and evaluates the parameter that is maximally characterized in the frequency domain. I il. (L

Description

with co no about ate

The invention relates to a measuring information technology, namely, devices for controlling the quality of raw materials and evaluating it.

KURITELNE) 1X VOSTOYKSTA about

The aim of the invention is to improve the accuracy of measuring the electrophysical parameters of tobacco tobacco, which determine its smoking properties.

 The drawing shows a structural diagram of a device for controlling the quality of raw tobacco.

 A device for controlling the quality of raw tobacco contains a generator of controlled voltage 1, cell 2; analog memory, phase room & 3, forming device 4, frequency measurement unit 5 ELT sounding, power amplifier unit 6, magnetizing device, electromagnet winding 7, power equalizer 8, s | 1 sounding sound:; n 5 six - D: 10 converters separated by the tobacco leaf geometry, control block 11, extremum search block 2, measuring path switch 13, analog-to-digital converter block 14, digital signal | 1ltr 15, block 16 of digital-analogue |) : reader 5 analyzer block -17 with | 1metra signals H1 0:, block 18 chetns- p depleting device and registering unit 19.

The device works the same way.

Initially set with the aid of the amplifier 6 of the magnetizing current Edny level. Constant voltage, From the generator 1 of the controlled voltage through the power amplifier S power high voltage: the 1st signal goes to the switch 9 sounding signals, which periodically connects the high frequency magnetizing windings of the electrodynamic converters 1 (D. The signal from the windings of the electrodes). The 10 transducers are fed to the corresponding inputs of the compiler, the 13th measuring TpaKTaj unit, the commutator 9 probe signals and the skin of the 13–53 measuring path work synchronously, which takes place are unravlep 1 unit J-m. From the output of the switch 13 of the measuring path, the signal arrives at the input of the search block 12 sKCTpeNn / Ma, in which the response signal is evaluated.

ka, its maximum value. This allows for fine-tuning the high-frequency path of the generator.

g 1 controlled voltage to the resonance frequency of NMR, i.e. The frequency of the generator is adjusted to 1 resonator / voltage at a resonant mode. At the same time, the signal from the output of the 13 sensor circuit is fed to the input of the analog-digital converter

14, from the output of which the information is presented in digital binary

15 code, enters the digital filter

15, implementing the optimal filtering of the exponential} -1th ci-; gnalov-responses 5 carry 1, their information) Control from the object control. From the output of the digital filter.

20 13 infusions “is sent to the block 18 of the calculating device through the analyzer of 1 spectrum of NMR signals, joker 9. Control results are recorded by registration unit 19. Via

25 of the spectrum analyzer 17, the components of the exponential components (constant time and amplitude values) are selected. In block 18, the counting of a page on a source of statistics is the calculation of the estimates of the chemical composition of tobacco raw materials that determine its smoker dignity, by coefficient perturbation and algebraic C5 gmmirovat-1 informative Y fMX components, according to the data obtained in the training cycle on a representative sample of reference samples - witnesses of tobacco sy.

40 Simultaneously, information from a digital camera (the filter enters block 16 ;; 1 analogue converter, which affects the input of the gene) of a controlled-voltage generator 1 and provides the maximum sensitivity of the device B a wide dynamic range of sounding control objects ( tobacco leaf). From the output (3) of the generator 1 control

, jg 11ap x enn signal post T7aet to the input of the cell 2 analog memory, at the same time keep the information available, which allows using the unit 3 of the phase comparator to produce: -j the comparison process comes to it I1 forma-1i from the exit (4) Generated e-rapper 1 controlled voltage. The information from the previous instantaneous value of 5 is posted on a permanent basis.

- 1396055

time interval in relation to the fact that

current instantaneous value, improving measurement accuracy, it

served at the second input of the block with the power of interconnected

3 phase comparator. The presence of whose- (power and signal switch

2 analog memory and phase sounding complex, digital filter 3 allows the determination of the rate of change in the frequency of the output signal of the generator 1

equal voltage. Using semi-10 frequency measurement units

information on the rate of change of sounding, current amplifier

rum and digital-to-analogue converter and a spectrum analyzer unit for NM signals and a control unit, as well as sounding channels, a digital filter

rum and digital-to-analog converter and NMR spectrum analyzer and control unit, as well as

neither the high-frequency probing effect and the instantaneous frequency value, measured by the probing frequency measurement unit 5, have been developed. The corrective action of the forming device 4 on the block 6 of the magnetizing current amplifier. Upon completion of the search for extra frequencies using a spectrum analyzer 17, the components of the response signals are extracted, and upon completion of the measurement of the components of the signals, the last power acts in a corresponding manner to control unit 11, which translates the controlled voltage generator 1 to search for NMR frequencies in the next frequency domain. V;: further, the device works in a similar way.

Formula of the invention. A device for controlling the quality of tobacco raw materials, containing a controlled voltage generator, a measuring instrument, a series-connected switchboard and an analog-to-digital converter unit, and a series-connected calculating unit, and a registering unit, and

magnetizing and searching for extremum and successively connected by an analog memory cell, a phase commutator and a forming unit, and the measuring device is made in the form of an electromagnet with electrodynamic converters, the input of the forming unit is connected to a sounding unit, the output is connected to a magnetizing current amplifier unit, which is connected an electromagnet winding, wherein the input of the probing frequency measurement unit is connected to one of the outputs of the generator of controlled voltage, the other output of which is connected to. the power amplifier, the third to the analog memory cell and the phase switch, and the inputs of the control voltage generator are connected to the digital-to-analog converter, extremum search and control units, the latter simultaneously connected to the measuring path switch ,,

and the extremum search unit is associated with

an analog-digital converter unit and a measuring circuit switchboard, a counting unit connected with a sounding frequency measurement unit and electrodynamic converters.

Claims (1)

SUMMARY OF THE INVENTION A device for controlling the quality of tobacco raw materials containing a controlled voltage generator — 35; An instrument, series-connected switch and analog-to-digital converter unit and series-connected calculating-decisive 40 block and a recording unit, characterized in that, in order to increase the measurement accuracy, it is equipped with a connected power amplifier and a switch of sensing signals, a digital filter and a digital-to-analog a converter and an NMR spectrum analyzer unit and a control unit, as well as units for measuring the sounding frequency, magnetization current amplifier and ext mum and series-connected by an analog memory cell, a phase switch and a forming unit, and the measuring device is made in the form of an electromagnet with electrodynamic converters, the input of the forming unit is connected to the sensing unit, the output to the magnetization current amplifier unit, which is connected to the electromagnet winding, while the input the sensing frequency measurement unit is connected to one of the outputs of the controlled voltage generator, the other output of which is connected to. a power amplifier, the third to the analog memory cell and the phase switch, and the inputs of the controlled voltage generator are connected to the blocks of the digital-analog converter, search for the extremum and control, the latter being simultaneously connected to the switch of the measuring path, and the extremum search unit is connected to the analog- digital transducer and the switch of the measuring path, the computing unit is connected to the unit for measuring the frequency of sounding and electrodynamic transducers.