SU1052979A1 - Device for continuous measuring moisture content in loose material - Google Patents

Abstract

A CONTINUOUS MEASURING DEVICE FOR HUMIDITY OF LOOSE MATERIALS consisting of a capacitive discrete-action primary converter connected in series with an electronic unit, a measuring instrument / board, in order to improve the accuracy of humidity measurement, a reference power source is additionally introduced into it control unit, and an integrating link, and the measuring device is equipped with a remote sensing reohord, which is a reference power supply source It is not connected with the ends of a remote transfer of the readings of the measuring instrument, the remote control transfer guide of the readings is electrically connected to one of the inputs of the controlled key, and mechanically with the measuring device, the second input of the controlled key is connected to the g output of the electronic unit, to the input of the integrator, the output of which is connected to the input of the measuring device, the controlled input of the controlled key is connected to the output of the control unit.

Description

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; Обрет Invented относ refers to moisture measurement systems and can be used to control the process according to the firing parameter. A device consisting of a continuous capacitive transducer, two generators, a mixer, a detector and a measuring device L 1 J is known. This device does not provide the ability to measure the humidity of the bulk materials with primary transducers of a ciscrete action, in which it is possible to ensure complete product more magnitude and higher degree of accuracy than in continuous converters. The closest to the present invention is a moisture meter consisting of a capacitive discrete-action primary transducer, connected in series with the electronic unit, from. Measurement: 1M device and control unit controlling the operation of the primary converter 23. The disadvantage of this device is the discreteness of the information of the Ready product. and the invention is an increase in accuracy and accuracy of humidity. The goal is achieved by the fact that the reference device TCH1ShK pyagt, the key controlled by the electronic unit, is connected to the continuous iamerit device and into the bulk materials, consisting of a capacitive primary transducer of discrete action, a successor connected to the electronic unit, the measuring device and the control unit the control unit, and an integrating element, the measuring device being provided with a remote transmission reichord ™, while the output of the reference source is connected to the ends of the remote the transmission of the measuring instrument, the valve of the distributive transfer cable is connected electrically to one of the inputs of the controlled key, and mechanically with the measuring instrument of the second Bhots controlled key connected to the output of the electronic unit, the output of the controlled key is connected to the input of the integrator, the output which is connected to the input of the measuring device, controlled input controlled. The key is connected to the output of the control unit. The drawing shows a structural block of the device for measuring the moisture content of sensible mothers. The device consists of a primary converter 1, an electronic unit 2, an integrating link 3, a control unit 4, a reference source 5, measure the measuring device 6 with a reohord 7 of the remote transmission of readings and a terminal 8. The device operates as follows. At the initial moment of time, the control unit 4 sets the key 8 to position A, and from the primary converter 1, it operates in mode 4 Measurement, the signal goes to electronic unit 2 to integrating link 3 and then to the input of the measuring circuit of the measuring device 6 Reference source It generates a voltage applied to the input of the reichord 7, the remote transmission of readings equal to the signal being reduced from the electronic unit and corresponding to its limit of measurement. Thus, due to the fact that when the measuring device 6 is in operation, the measuring rheochord engine and the remote transmission indicator are set in the same position, a signal is generated at the output of the remote transmission indicator, equal to the signal at the input of the measuring device. According to the measurement mode, when the device enters the preparatory mode corresponding to the unloading of the primary converter, its filling with the measured product and its compaction, the signal at the output of the electronic unit disappears. At this time, the control unit 4 transfers the key 8 to the position B and the input of the measuring device 6 is fed through the integrating element from the remote transmission readout signal equal to the signal from the output of the electronic unit 2 during the previous measurement cycle. Thus, throughout the preparatory cycle, the output of the secondary measuring device continues to the post. This signal is equal to the informative one, since during the preparatory cycle the quality parameter continues to maintain its tendency, since the process of the essence is characterized by considerable inertia (the time constant is 2.5–3 times longer than the preparatory cycle time). and admin. penalties technological process. The signal removes from the reichord of the remote

The readings of the secondary measuring instrument are used as the input central control unit of the automatic regulating device. The integrating link is introduced to prevent the occurrence of positive feedback.

at the time of the iorkpumeni key 8.

The proposed device makes it possible to increase the accuracy of measuring the moisture content of bulk materials with a continuous process.

Claims (1)

DEVICE FOR CONTINUOUS MEASUREMENT OF HUMIDITY OF BULK MATERIALS, consisting of a capacitive primary transducer of discrete action, connected in series with an electronic unit, a measuring control device, characterized in that, in order to increase the accuracy of measuring moisture, a reference power source, a key controlled from the unit, are additionally introduced into it control, and an integrating unit, and the measuring device is equipped with a reochord of remote transmission of readings, the output of the reference power source is connected with the ends of the rechord of the remote reading of the readings of the measuring device, the slider of the reochord of the remote reading of readings is electrically connected to one of the inputs of the controlled key, and mechanically with the measuring device, the second input of the controlled key is connected to the output of the electronic unit, the output of the controlled key is connected to the input of the integrating Even, the output of which connected to the input of the measuring device, the controlled input of the controlled key is connected to the output of the control unit. 1052079 The device consists of a primary transducer 1, an electronic unit 2, an integrating link 3, a control unit 4., A reference source 5, a measuring device 6 with a rechord 7 of a remote transmission of readings The device operates zom. In the initial moment