CC BY
27
UDK 681.39
LABORATORY UNIT FOR IN-CLASS TESTING OF FREQUENCY
PRESSURE SENSOR
M. Kaftasyev1, V. Chernyakov2 Scientific supervisor - G. Grinberg Foreign language supervisor - S. Shelikhova
1JSC «Krasnoyarsk Machine Building Plant» 29, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation
2 Reshetnev Siberian State Aerospace University 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation
The requirements of the Federal state educational standards for the organization of the laboratory practical work at universities were considered. It is obvious that one of the most effective ways to meet these requirements is to design and manufacture laboratory facilities by students under the supervision of staff departments and relevant units of core enterprises.
Keywords: test, testing unit, pressure sensor, laboratory facilities, educational standards.
ЛАБОРАТОРНАЯ УСТАНОВКА ДЛЯ ОРГАНИЗАЦИИ ЗАНЯТИЙ ПО ИСПЫТАНИЯМ ЧАСТОТНЫХ ДАТЧИКОВ ДАВЛЕНИЯ
М. С. Кафтасьев1, В. С. Черняков2 Научный руководитель - Г. М. Гринберг Руководитель по иностранному языку - С. В. Шелихова
1АО «Красноярский машиностроительный завод»
Российская Федерация, 660037, г. Красноярск, просп. им. газ. «Красноярский рабочий», 29
2Сибирский государственный аэрокосмический университет имени академика М. Ф. Решетнева
Российская Федерация, 660037, г. Красноярск, просп. им. газ. «Красноярский рабочий», 31
Рассмотрены требования Федерального государственного образовательного стандарта к организации лабораторного практикума в вузе. Показано, что одним из эффективных путей выполнения этих требований является проектирование и изготовление лабораторных установок силами студентов под руководством работников кафедр и соответствующих подразделений базовых предприятий.
Ключевые слова: испытания, испытательная установка, датчик давления, лабораторное оборудование, образовательные стандарты.
Modern aeronautical and astronautical vehicles operate and solve complex problems successfully by means of installed control systems. Important components of such systems are sensors providing the necessary information on the aircraft's board.
Reliability is a key feature of the whole aircraft and (or) its parts (components, assemblies, structures, avionics, engines etc.). Engineering test methods of the whole aircraft and its separate elements are one of the most important practical foundations of reliability. According to GOST 16504-81, test is considered as the experimental determination of quantitative and (or) the qualitative characteristics of the object tested properties as a result of exposure to it while functioning.
The Department of Automatic Control Systems (ACS) of Siberian State Aerospace University (SibSAU) specializes in bachelor training course 24.03.02 - Systems of air traffic control and navigation; engineers training course 24.05.06 - Aircraft Control Systems and Master's training course 24.04.02 Systems of air traffic control and navigation.
Секция «Актуальные на учные проблемы в мире (глазами молодых исследователей)»
Graduates of listed specialties must possess the following professional skills in the field of testing activities:
- testing of mobile objects motion and navigation control systems elements;
- testing on the basis of the given method, the results analysis and evaluation;
- setting up, configuring, adjusting and testing instruments, devices and systems in industrial enterprises and test area;
- being in charge of metrological control of key parameters of precision instruments and orientation, stabilization and navigation systems during the manufacturing process;
- performing of test work in their professional field through a systematic approach, describing the ongoing experiments [1; 2].
Various testing panels are facilities in a manufacturing area. And in terms of technical college physical and technical laboratory experiment carried out by the students during the laboratory sessions is close in meaning and content to industrial testing. Laboratory classes are held in the form of frontal tests, labs, workshops, both in general and special disciplines.
According to the federal state educational standards of higher education institution, the organization that implements the basic educational program (OOP) to prepare graduates must have labs with the appropriate material and technical base. Such a base should include facilities, equipment and software and specialpurpose hardware to ensure the conduct of all types of laboratory training, practice and research work of students, provided by the curriculum of the university.
The number of test facilities for conducting laboratory studies, according to the destination and characteristics is similar to those used in the workplace at the ACS department of SibSAU. Replenishment fleet test units is carried out in different directions [3], including the design and manufacture performed by the employees and students of the department.
Testing unit design is created by students while working on course projects and final qualifying works. Guidance and counseling of students is performed by teachers of the Department and experts of core enterprises. Experience gained from the operation of test facilities in the workplaces is necessary for modifications of testing units' functionality, including in the process of automation in design [4; 5].
Pressure is one of the most widely controlled parameter on board the aircraft. For example, to monitor and control the operation of the rocket engine RD180 the following pressure sensors are used: Vt 222M absolute pressure sensor, Vt 212 pressure sensors, Vt 309 rapid pressures primary transducers, LH 611 AM rapidly varying pressure sensors, Vt 1201 frequency pressure sensors.
Testing plant for Vt 1201 frequency pressure sensors is currently in the design stage at the ACS Department. Vt 1201 sensors are designed to measure excessive static and slowly varying pressure of high-temperature liquids, gases and vapors of aggressive and non-aggressive media in the range of 0.5 to 60 MPa (0-1 0; 1.4; 2.0; 2.8; 4.0; 5.6; 8.0; 11.0; 16.0; 22.0; 30.0; 45.0; 60.0). The measuring range of the growing pressure is from 0 to 0, 95 nominal pressure (rise time of less than 0.01 s). It is possible to overlay the pressure pulsations in the range from 0 to 500 Hz with amplitude of not more than 0, 05 nominal pressure.
The main components of the designed panel are: pressure control units and the signaling process unit for receiving and securing the test sensor pressure, sensor drive oscillator, a digital gauge, gauges, power supply, a microcontroller, a communication interface with a PC stand, security means, including block and security elements meeting the requirements for hardware device working under pressure.
Test pressure via the pressure control is applied to the test probe. Pressure control is performed by microcontroller commands which can be programmed to:
- changing the shape of the curve and the rate of increase or decrease in pressure;
- changing the exposure time at the necessary pressure;
- applying the required pressure pulsations and others.
Measurement signals from the outputs of digital devices (oscilloscope, frequency meter, and ammeter) served on a microcontroller and further to a personal computer. Computer compares the measured parameters with their reference values, conducts the necessary calculations and generates reports about the experiments.
Some necessary calculations, the results of calculations and report can be carried out completely by means of the microcontroller, if you program it properly and connect it to the input device in the form of a keyboard and an output device as a display unit and a printing device. Thus, one can achieve full autonomy and create a complete hardware-software complex laboratory tests.
References
1. Prikaz Minobrnauki RF ot 29.03.2010 № 229 «Ob utverzhdenii i vvedenii v deystvie federal'nogo gosudarstvennogo obrazovatel'nogo standarta vysshego professional'nogo obrazovaniya po napravleniyu podgotovki 161100 Sistemy upravleniya dvizheniem i navigatsiya (kvalifikatsiya (stepen') «bakalavr»)» (Zaregistrirovano v Minyuste RF 01.06.2010 № 17419) [Elektronnyy resurs] / Rezhim dostupa: http://lawsforall.ru/index.php?ds=52068 (data obrashcheniya 26.11.2014 g.).
2. Prikaz Minobrnauki RF ot 17 yanvarya 2011 g. N 70 «Ob utverzhdenii i vvedenii v deystvie federal'nogo gosudarstvennogo obrazovatel'nogo standarta vysshego professional'nogo obrazovaniya po napravleniyu podgotovki (spetsial'nosti) 161101 Sistemy upravleniya letatel'nymi apparatami (kvalifikatsiya (stepen') «spetsialist»)» [Elektronnyy resurs] / Rezhim dostupa: http://poisk-zakona.ru/12136.html (data obrashcheniya 26.11.2014 g.).
3. Grinberg G. M., Romanov D. V. Organizatsiya laboratornogo praktikuma s primeneniem informatsionno-kommunikatsionnykh tekhnologiy / Reshetnevskie chteniya : materialy XVIII Mezhdunar. nauch. konf., posvyashch. 90-letiyu so dnya rozhdeniya gener. konstruktora raket.-kosmich. sistem akad. M. F. Reshetneva (11-14 noyab. 2014, g. Krasnoyarsk). V 3 ch. Ch. 3. Praktiko-orientirovannoe obuchenie v professional'nom obrazovanii: problemy i puti razvitiya : materialy Nauch.-prakt. konf., provodimoy v ram-kakh XVIII Mezhdunar. nauch. konf., posvyashch. 90-letiyu so dnya rozhdeniya gener. konstruktora raket.-kosmich. sistem akad. M. F. Reshetneva / pod obshch. red. Yu. V. Erygina ; Sib. gos. aerokosmich. un-t. Krasnoyarsk, 2014. S. 290-295.
4. Grinberg G. M., Kaftasyev M. S., Klipov E. A. Razrabotka laboratornoy ispytatel'noy ustanovki na osnove platformy ARDUINO / Problemy modernizatsii professional'nogo obrazovaniya v XXI veke : Mate-rialy IV Mezhdunarodnoy nauchno-prakticheskoy konferentsii studentov, aspirantov i molodykh uchenykh. Novokuznetsk, 2014. S. 31-35.
5. Grinberg G. M., Kaftas'ev M. S., Klipov E. A. Ispol'zovanie programmiruemykh mikrokontrollerov Arduino dlya avtomatizatsii laboratornykh ispytaniy / Materialy XI Mezhdunarodnoy nauchno-prakticheskoy konferentsii «Tatishchevskie chteniya: aktual'nye problemy nauki i praktiki» // Aktual'nye problemy infor-matizatsii nauki i proizvodstva. Tol'yatti: Volzhskiy universitet im. V. N. Tatishcheva, 2014. S. 120-126.
© Kaftasyev M., Chernyakov V., 2015
