I. Applicable Disciplines and Fields

Instrumentation Science and Technology; Electronic Information (formerly the field of Instrumentation Engineering)

II. Composition of the Re-examination

The re-examination consists of two parts:Professional Comprehensive TestandInterview.

(I) Content of the Professional Comprehensive Test

There are 5 professional comprehensive test subjects for candidates to choose from. Candidates participating in the re-examination must select2 subjectsarbitrarily and complete the written exam in a closed-book format.

The syllabus for the professional comprehensive re-examination is provided in theAnnex.

(II) Key Assessment Content of the Interview

1. Ideological and political quality, moral character, and humanistic literacy;

2. Academic performance and learning status during undergraduate studies;

3. Ability to discover, analyze, and solve problems using acquired knowledge;

4. Sense of innovation and innovation capability;

5. Foreign language listening and speaking skills;

6. Performance in scientific research, social practice (or practical work);

7. Physical and mental health status, demeanor, expression, and etiquette;

8. Extracurricular specialties and interests of the candidate.

Candidates shall prepare and provide relevant supporting materials independently. The specific assessment format of the interview shall be subject to the official re-examination plan released separately.

Annex

Syllabus for the Professional Comprehensive Re-examination

Set 1: Signals and Systems [01601]

I. Examination Requirements

Candidates are required to comprehensively and systematically master the concepts and basic principles of signals and systems, apply them flexibly, and demonstrate strong system analysis capabilities.

II. Examination Content

1. Basic Concepts of Signals and Systems

o Definition and properties of the impulse signal;

o Signal operations and waveform transformations: shifting, folding, scaling, multiplication, addition, differentiation, integration, etc.;

o Signal decomposition: methods for calculating odd/even components and AC/DC components;

o Definitions and determination methods of power signals and energy signals;

o Determination of system characteristics: linearity, time-invariance, causality, and stability.

2. Time-Domain Analysis of Continuous-Time Systems

o Zero-input response and zero-state response: conditions for determining undetermined coefficients, and their relationships with natural response and forced response;

o Relationship between initial states and linear time-invariance;

o Impulse response and step response;

o Methods for calculating convolution;

o Calculation of zero-state response using convolution.

3. Fourier Transform

o Simplifying frequency spectrum analysis of periodic signals using properties of Fourier series or Fourier transform;

o Flexible application of Fourier transform properties for forward and inverse signal transformations;

o Mastery of spectrum calculation of sampled signals and the sampling theorem;

o Mastery of Fourier series expansion coefficients and Fourier transforms of typical signals.

4. Application of Fourier Transform in Communication Systems

o Conditions for distortionless transmission of systems;

o Physical realizability of systems;

o Modulation and demodulation, band-pass filters, and recovery of analog signals from sampled signals.

5. Laplace Transform

o Several methods for calculating inverse Laplace transform;

o Basic properties of Laplace transform;

o Calculation of zero-input and zero-state responses of systems using Laplace transform;

o Relationship between poles/zeros and time-domain waveforms;

o Relationships between poles/zeros and natural response, forced response, transient response, steady-state response;

o Relationship between poles/zeros and system stability, and methods for determining system stability;

o Geometric method for determining system frequency characteristics.

III. Paper Structure

1. Fill-in-the-blank questions

2. Multiple-choice questions

3. True/false questions

4. Theoretical analysis questions

5. Application questions

IV. Reference Book

Zheng Junli et al.,Signals and Systems(Volume 1, 2nd Edition), Higher Education Press, 2000.

Set 2: Engineering Optics [01602]

I. Examination Requirements

Candidates are required to fully understand and master the basic concepts, theories, graphical construction methods, and calculation methods of geometric optics; grasp in detail the basic concepts, structural forms, properties, and practical implementations of coaxial spherical systems and ideal optical systems; master the properties, imaging principles, and characteristics of various optical devices; understand the basic structure, aperture forms and functions, optical path structure, and optical characteristics of typical optical instruments, and apply aberration principles to design and calculate the external dimension structure of optical systems.

II. Examination Content

1. Basic Laws of Geometric Optics and Basic Concepts of Imaging

a. Descriptive forms of light; b. Meanings, applications, and proofs of the four basic laws of light; c. Concepts of optical systems and imaging.

2. Spherical Surfaces and Coaxial Spherical Systems

a. Sign conventions; b. Object-image relationships and imaging characteristics of a single refracting spherical surface in the paraxial region; c. Object-image relationships and imaging characteristics of a single reflecting spherical surface system; d. Magnification of spherical surfaces and coaxial spherical systems.

3. Ideal Optical Systems

a. Characteristics of ideal optical systems and collinear imaging theory; b. Cardinal points, cardinal planes, and their respective characteristics of ideal optical systems; c. Theories and representation methods of ideal optical systems; d. Image formation by graphical and analytical methods and imaging characteristics of ideal optical systems; e. Combination of optical groups and optical power; f. Optical characteristics of lenses and thin lenses.

4. Plane Mirrors and Planar Systems

a. Imaging characteristics of single and double plane mirrors; b. Determination and unfolding of imaging directions of reflecting prisms (including combination with refracting optical groups); c. Imaging characteristics of parallel plane plates in the paraxial region.

5. Apertures in Optical Systems

a. Classification and functions of apertures; b. Basic concepts and determination of aperture stop, entrance pupil, exit pupil; field stop, entrance window, exit window; c. Telecentric optical paths and their applications.

6. Aberration Theory

a. Effects of axial and off-axis aberrations on image quality; b. Main causes, qualitative descriptions, measurement methods, and elimination methods of each type of aberration.

7. Typical Optical Systems

a. Human eye: diopter, causes and correction of myopia and hyperopia, near point distance, resolving power and aiming accuracy; b. Magnification principle, magnification, and determination of linear field of view of magnifiers; c. Magnification principle, magnification, imaging characteristics, and beam limitation of microscopes; d. Requirements for illumination systems and optical characteristics of two typical illumination methods; e. Magnification principle and optical characteristics of telescope systems, composition and optical characteristics of two typical telescope systems; f. Resolving power and optical characteristics of photographic and projection systems.

III. Paper Structure

1. Fill-in-the-blank questions

2. Multiple-choice questions

3. Graphical construction questions

4. Calculation questions

IV. Reference Book

Zhang Yimo (Ed.),Applied Optics(4th Edition), Electronic Industry Press.

Set 3: Precision Mechanical Design [01603]

I. Examination Requirements

Candidates are required to fully understand and master the working principles and design methods of general mechanical components and commonly used precision mechanical mechanisms, and possess the ability to design precision mechanical transmission mechanisms and mechanical structures.

II. Examination Content

1. Gear Mechanisms

o Calculation of geometric dimensions of standard involute spur cylindrical gears;

o Conditions for correct and continuous meshing of involute gears;

o Transmission characteristics, correct meshing conditions, and geometric dimension calculation of helical cylindrical gears;

o Transmission characteristics, correct meshing conditions, and geometric dimension calculation of worm and worm gear drives;

o Calculation of transmission ratio of gear trains (fixed-axis gear trains, epicyclic gear trains, and compound gear trains).

2. Connections

o Geometric parameters, types, and applications of threads;

o Basic types, anti-loosening methods, and structural design of threaded connections;

o Types and design (selection) methods of pin connections;

o Design (selection) methods of ordinary flat key connections;

o Permanent connections.

3. Shafting Components

o Structural design of straight shafts;

o Dimension design of straight shafts;

o Types and basic codes of rolling bearings;

o Calculation of rated life of rolling bearings;

o Combined design of rolling bearings.

4. Mechanical Precision Design of Components

o Dimensional accuracy design: mastery of calculation of limit deviation, limit dimensions, tolerance, limit clearance, and limit interference; mastery of drawing tolerance zone diagrams; mastery of dimension accuracy marking in assembly drawings and part drawings;

o Geometric accuracy design: mastery of marking geometric tolerance characteristic items in part drawings;

o Surface roughness design: mastery of surface roughness marking in part drawings.

5. Lead Screw Mechanisms

o Types and structures of lead screw mechanisms;

o Design of lead screw mechanisms.

6. Friction-Type Belt Drives

o Working principle of friction-type belt drives;

o Center distance and wrap angle of friction-type belt drives;

o Slip and elastic slip of friction-type belt drives;

o Transmission ratio and slip rate of friction-type belt drives;

o Tensioning methods of friction-type belt drives.

7. Gear Transmission Design

o Failure forms and design criteria of gear teeth;

o Forces, calculated loads, and strength design methods of spur cylindrical gear drives;

o Design of gear transmission chains.

III. Paper Structure

1. Multiple-choice questions

2. Short-answer questions

3. Graphical (marking) questions

4. Design and calculation questions

IV. Reference Book

Ma Huiping, Jiang Xiuzhen (Eds.),Fundamentals of Mechanics(5th Edition), Science Press, December 2023.

Set 4: Principles and Applications of Single-Chip Microcomputers [01604]

I. Examination Requirements

Candidates are required to focus on mastering the on-chip hardware structure of the AT89S52 single-chip microcomputer, the functions and working principles of the interrupt system, timers, and asynchronous serial port, as well as the corresponding application programming methods; master the C51 language instruction set and common programming techniques; master the application expansion interface design and software design of memory chips, I/O ports, keyboard/segment LCD displays, D/A converters, and A/D converters.

II. Examination Content

1. On-Chip Hardware Structure of AT89S52

Hardware composition of the AT89S52 single-chip microcomputer, functions of all pins, classification, composition, and structure of memory, four parallel I/O ports; working principle and circuit design of clock circuits; working principle and circuit design of reset circuits; concept of the minimum system of single-chip microcomputers; working principle and application of watchdog timers.

2. Instruction Set of AT89S52

Data types, storage types, arrays, pointers, special function registers, bit variable functions of C51 language; flexible application of C51 functions. Assembly language programming isnot includedin the examination.

3. Interrupt System of AT89S52

Definition and advantages of interrupts; working principle of the interrupt system and related special function registers; interrupt function structure and C51 application programming.

4. Timer/Counter of AT89S52

Structure (Timer T2 isnot includedin the examination), working principle, characteristics of four working modes, operation flow, and C51 application programming of on-chip timers/counters T0 and T1.

5. Serial Port of AT89S52

Structure, working principle, and C51 application programming of the on-chip serial port of AT89S52; comparison of characteristics of four working modes; working principle of multi-machine communication, definition and setting methods of baud rate.

6. External Memory Expansion and I/O Expansion of AT89S52 Single-Chip Microcomputer

Three-bus structure and basic concepts of system parallel expansion; address allocation of external memory space using line selection and decoding methods; hardware design and C51 software programming of memory expansion; basic concepts of I/O parallel expansion; definition and difference between I/O interfaces and I/O ports; addressing relationship between external I/O and external memory.

7. Interface between AT89S52 Single-Chip Microcomputer and Keyboard/Display Devices

Display principle of 8-segment LED digital tubes (static display and dynamic display); working principle of independent keyboards and matrix keyboards; significance and methods of key debouncing; interface design between AT89S52 single-chip microcomputer and keyboards, and C51 software programming for polling/interrupt modes.

8. Serial and Parallel Expansion of AT89S52 Single-Chip Microcomputer with D/A and A/D Converters

Interface design and C51 software programming of AT89S52 single-chip microcomputer with ADC and DAC based on parallel bus or serial bus (SPI, I2C), such as DAC0832, ADC0809, TLC2543, etc.

III. Paper Structure

1. Question Type Structure

1. Fill-in-the-blank questions

2. Multiple-choice questions

3. True/false questions

4. Short-answer questions

5. Comprehensive application questions (hardware circuit and program analysis, C51 code completion)

2. Special Tips

1. Clearly master basic concepts and knowledge points based on the reference textbook;

2. Proficiency in solving exercises in the textbook;

3. Proficiency in analyzing the working principles of main application circuits given in the textbook;

4. Preliminary mastery of software and hardware debugging skills of single-chip microcomputer application systems, as well as methods for discovering and troubleshooting software and hardware faults.

IV. Reference Books

1. Zhang Yigang, Zhao Guangquan, Zhang Jingchao (Eds.),Principles and Applications of Single-Chip Microcomputers — C51 Programming + Proteus Simulation(2nd Edition), Higher Education Press.

2. Other domestic general textbooks on Principles and Applications of Single-Chip Microcomputers.

Set 5: Comprehensive Physics [01605]

I. Examination Requirements

This is a professional comprehensive test focusing on assessing candidates' comprehensive mastery of basic physical concepts and principles, as well as other relevant physical knowledge.

II. Examination Content

1. Mechanics

Particle kinematics, theorem of momentum and conservation of momentum, theorem of kinetic energy, conservative forces and potential energy, conservation of mechanical energy, law of rotational motion of rigid bodies about a fixed axis, theorem of angular momentum and conservation of angular momentum, basic principles of special relativity, spacetime view of special relativity, dynamics of special relativity. Description of simple harmonic vibration, superposition of simple harmonic vibrations, plane harmonic waves and their wave functions, Huygens' principle, standing waves, Doppler effect.

2. Electromagnetism

Electric field intensity, Gauss's theorem and Ampère's circuital theorem of electrostatic field, electric potential, conductors and dielectrics in electrostatic field, capacitance of capacitors, Gauss's theorem and Ampère's circuital theorem in the presence of dielectrics, steady current, magnetic induction intensity, Biot-Savart law, Gauss's theorem and Ampère's circuital theorem of steady magnetic field, magnetic media in magnetic field, Faraday's law of electromagnetic induction, motional electromotive force, induced electromotive force, displacement current, Maxwell's equations.

3. Fundamentals of Quantum Mechanics

Blackbody radiation, Planck's quantum hypothesis, photoelectric effect, Compton effect, hydrogen atom theory, de Broglie relation, wave-particle duality of particles, wave function and its probabilistic interpretation, uncertainty principle, Schrödinger equation, one-dimensional infinite potential well, potential barrier and tunnel effect.

III. Paper Structure

1. Fill-in-the-blank questions

2. Short-answer questions

3. Comprehensive application questions

IV. Reference Books

1. Shouzhu Cheng,Zhiyong Jiang et al.,General Physics, Higher Education Press.

2.  Yuan Zhao,  Xiao'ou Wang et al. (Eds.),University Physics, Higher Education Press.