RU1382378C - Converter of linear movement to code - Google Patents

Converter of linear movement to code

Info

Publication number
RU1382378C
RU1382378C SU4022976A RU1382378C RU 1382378 C RU1382378 C RU 1382378C SU 4022976 A SU4022976 A SU 4022976A RU 1382378 C RU1382378 C RU 1382378C
Authority
RU
Russia
Prior art keywords
sensitive
processing unit
converter
magnetic
signal source
Prior art date
Application number
Other languages
Russian (ru)
Inventor
В.В. Кочугуров
В.П. Николаев
К.В. Сапожникова
Р.Е. Тайманов
Б.В. Фролов-Багреев
Original Assignee
Kochugurov V V
Nikolaev V P
Sapozhnikova K V
Tajmanov R E
Frolov Bagreev B V
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kochugurov V V, Nikolaev V P, Sapozhnikova K V, Tajmanov R E, Frolov Bagreev B V filed Critical Kochugurov V V
Priority to SU4022976 priority Critical patent/RU1382378C/en
Application granted granted Critical
Publication of RU1382378C publication Critical patent/RU1382378C/en

Links

Images

Abstract

FIELD: measuring devices for nuclear power production. SUBSTANCE: device has signal source, processing unit, movable rod, where magnetic setting elements and sensitive element are located. Magnetic setting elements vary in their magnetic permeability. Number of permeability levels of setting elements equals to radix of number system of converter. Permeability levels are set according to condition of permeability change in at least one magnetic setting element, which is located in opposite to sensitive elements, when rod is shifted by distance that equals to maximal distance between adjacent sensitive elements. Sensitive elements are combined into groups, first terminals of sensitive elements of each group are connected to corresponding output of signal source and to corresponding reference input of processing unit. Second terminals of sensitive elements of same sign in each group are joined and second terminals of sensitive elements in one group are connected to corresponding information inputs of processing unit. Magnetic setting elements together with sensitive elements provide encoding scale. This scale, functional connections of sensitive elements to output of signal source results in increased resolution of converter. Code can be generated by either time-sharing or frequency-sharing of signals. The choice is determined by design of signal source unit and processing unit. Device can be used for determination of position of regulating device of control system for nuclear reactor protection. EFFECT: increased resolution. 3 dwg

Description

 The invention relates to the field of measuring equipment in nuclear energy and can be used to determine the position of the regulatory body of the control system and protection of a nuclear reactor and measure its movement.
 The aim of the invention is to improve the accuracy and reliability of the Converter.
 Figure 1 shows the functional diagram of the Converter linear displacement in the code; in FIG. 2 is an example of a processing unit in the time division of signals; figure 3 an example implementation of the processing unit in the frequency separation of signals.
 The converter comprises a rod 2 located in the housing 1, kinematically connected to the reactor regulatory body, sensing elements 3, a signal source 4, a processing unit 5, input 6 and output 7 communication lines of the sensing elements 3, magnetic driving elements 8.9 with different magnetic permeabilities.
 When the signals are temporarily separated in the converter, the signal source 4 can be made in the form of a generator, to the output of which a distributor is connected. In this case, the processing unit 5 (FIG. 2) comprises an indication unit 10, a decoder 11, pulse shapers 12, coincidence elements 13, and triggers 14.
 When the frequency separation of the signals in the Converter, the source 4 of the signals can be made in the form of a frequency grid generator. In this case, the processing unit 5 (Fig. 3) comprises a decoder 15, an indication unit 16, synchronous detectors 17, pulse shapers 18, and triggers 19.
 Magnetic driving elements 8, 9 can be made, for example, in the form of rings of steels having different values of magnetic permeability, so that the code scale formed by the combination of magnetic driving elements 8, 9 and sensitive elements 3 can be binary, ternary, etc. d. The number of sensing elements 3 determines the capacity of the code scale.
 In the FIG. 1 example, the magnetic master elements 8, 9 and the sensing elements 3 form a four-digit binary single-rail code scale. We assume that the presence of the magnetic master element 9 against the corresponding sensitive element 3 corresponds to a logical zero, and the magnetic master element 8 to a logical unit, and the signal of the sensitive element 3-1 corresponds to the high order bit. In this case, the code combination “0010” corresponds to the example shown in FIG. 1.
 The converter operates as follows.
 The signal from the source 4 is supplied to the sensing elements 3 via communication lines 6. Let the source 4 of the signals is made in the form of a generator with a distributor, then the signal first comes through line 6-1 to the sensitive elements 3-1 and 3-2. The output signal from the sensor 3-1 on the line 7-1, and from the sensor 3-2 on the line 7-2 enters the processing unit 5. Then, using the distributor, which is part of the source 4 signals, the signal is supplied through line 6-2 to the sensitive elements 3-3 and 3-4. The output signal appears only at the output of the sensing element 3-4 and enters the processing unit 5 along line 7-2. The task of the processing unit 5 is to determine the position of the stem 2. In the processing unit 5, the signals from the sensing elements 3 through the pulse generators 12 are sent to the coincidence elements 13, which also receives signals from the source 4 that have passed the pulse generators 12. The signals at the outputs of the coincidence elements 13 are stored by triggers 14 and then fed to a decoder 11 and an indication unit 10.
In the case of frequency separation of signals, the signal source 4 is made in the form of a generator that simultaneously generates signals with different periods of oscillation, i.e. different frequencies. In this case, the output signals of the source 4 with different periods T 1 and T 2 arrive simultaneously along lines 6-1 and 6-2 to the sensitive elements 3, and from them along lines 7-1, 7-2 to the processing unit 5. In the processing unit 5, they pass synchronous detectors 17, pulse shapers 18 and enter the triggers 19, from the outputs of which they enter the decoder 15, and from it to the display unit 16.
 Thus, the converter allows for the maximum allowable (taking into account limited dimensions) the number of communication lines 6, 7 to increase the number of discrete points that can be determined.
 If it is necessary to maintain the same absolute measurement accuracy over the entire range of movement of the regulatory body, it is possible to place the sensing elements 3 only in the lower part of the housing 1, if you want to ensure particularly high reliability, you should position the sensing elements 3 along the entire working stroke.

Claims (1)

  1.  A LINEAR MOVING CONVERTER TO A CODE containing a signal source, a processing unit, a kinematic rod connected to a controlled object, on which magnetic driving elements are mounted, and sensitive elements installed along the rod, characterized in that, in order to increase the accuracy and reliability of the converter, it magnetic driving elements are made with different magnetic permeabilities with a number of gradations equal to the base of the converter number system and are installed along the rod according to the law, correspondingly when changing gradations of magnetic permeability of at least one of the magnetic driving elements located against the sensitive elements, in the rod positions shifted by a distance equal to the largest distance between adjacent sensitive elements, the sensitive elements are combined into groups, the first conclusions of the sensitive elements of each group are connected to the corresponding output of the signal source and with the corresponding reference input of the processing unit, the second outputs of the same sensitive elements of all groups are combined At the same time, the second conclusions of the sensitive elements of one of the groups are connected to the corresponding information inputs of the processing unit.
SU4022976 1986-02-18 1986-02-18 Converter of linear movement to code RU1382378C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU4022976 RU1382378C (en) 1986-02-18 1986-02-18 Converter of linear movement to code

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU4022976 RU1382378C (en) 1986-02-18 1986-02-18 Converter of linear movement to code

Related Child Applications (1)

Application Number Title Priority Date Filing Date
SU4071295 Division RU1489467C (en) 1986-05-26 1986-05-26 Position detector for nuclear reactor control element

Publications (1)

Publication Number Publication Date
RU1382378C true RU1382378C (en) 1995-11-20

Family

ID=21221882

Family Applications (1)

Application Number Title Priority Date Filing Date
SU4022976 RU1382378C (en) 1986-02-18 1986-02-18 Converter of linear movement to code

Country Status (1)

Country Link
RU (1) RU1382378C (en)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Авторское свидетельство СССР N 442503, кл. H 03M 1/26, 1972. *
Заявка ФРГ N 1281597, кл. 21g-21/31, 1968. *

Similar Documents

Publication Publication Date Title
GB1398909A (en) Displacement-measuring systems
US3548321A (en) Phase measuring device for supplying a signal proportional to the measured phase
US3403392A (en) Apparatus for measuring of lengths by impulse counting
RU1382378C (en) Converter of linear movement to code
US3564220A (en) Digital scale changing
GB1534148A (en) Control of protection systems
JPS5979114A (en) Detector for absolute line position
US3656154A (en) Apparatus for converting a cyclic analog signal to a digital signal
GB1380045A (en) Position detection and control devices
JPS58137709A (en) Reading method of scale
SU411416A1 (en)
SU734773A1 (en) Method of converting displacement into code
US3573805A (en) Conversion apparatus for converting nonstandard pulse count to standard measurement count
SU1337663A1 (en) Earth-inductor digital compass
US3516504A (en) Scales
SU786029A2 (en) Device for measuring parameters in data transmitting channels
SU422968A1 (en) Device automatic weighing material on the conveyor
SU1610267A1 (en) Apparatus for measuring displacement of object
SU575668A1 (en) Device for checking equipment
SU615565A1 (en) Arangement for automatic detecting of generator with the highest load current
SU1679181A1 (en) Device for deformation measuring
SU579640A1 (en) Displacement-to-code converter
GB2017313A (en) System for monitoring methane concentration
SU881686A1 (en) Device for monitoring non-electric parameters
SU773433A1 (en) Photoelectric measuring transducer