Classification and application of measuring instruments

1, oscilloscope oscilloscope is an electronic instrument for measuring voltage waveforms, it can display the law of the voltage signal to be measured with time, with a graphic display. The use of an oscilloscope can not only visually and visually observe the changes in the measured physical quantity, but also can be used to compare the frequency and phase with the waveforms it displays, measure the voltage and current, and trace the characteristics.

2, signal generator {TodayHot}

Signal generators (including function generators) provide signal sources for troubleshooting and debugging electronic equipment and instruments. It is an oscillator that produces a certain waveform, frequency, and amplitude. For example: Generate sine wave, square wave, triangle wave, ramp wave and rectangular pulse wave.

3. Transistor Characteristics The transistor display device is a special oscilloscope. It can directly observe various transistor characteristics and curvature clusters. For example: the input and output characteristics and feedback characteristics of the three types of transistors: common-emitter, common-base, and common-collector; the forward and reverse characteristics of the diode; the Zener characteristics of the Zener diode; it can measure the crystal {HotTag } Breakdown voltage, saturation current, auto or a parameter, etc. of the tube.

4, infrared tester infrared tester is a non-contact temperature measuring instrument, which includes the optical system, electronic circuits, in the information modulation, linearization to achieve the instructions, display and control purposes. There are two kinds of infrared thermometers, photon temperature measurement and thermal thermometer. They are mainly used for temperature measurement of electric furnaces, crops, railway rails, buried underground ultra-high voltage cable connectors, fire protection, gas analysis, and laser reception. Control occasions.

5, integrated circuit tester This type of instrument can test functions and parameters of TI1, PM0S, CM0S digital integrated circuits, and can also determine the chip type of the erased word and the on-line functional test and on-line state test of the integrated circuit.

6, LCR parameter tester inductance, capacitance, resistance parameter measuring instrument, not only can automatically determine the nature of components, but also can display the symbol graphic, and display its value. It can also measure Q, D, Z, Lp, Ls, Cp, Cs, Kp, Ks and other parameters, and show the equivalent circuit pattern.

7. Spectrum Analyzer The spectrum analyzer has extensive applications in frequency domain signal analysis, testing, research, and maintenance. It can measure the amplitude and frequency of the signal at the same time, test and compare the composition of multiple signals and analysis signals. You can also test the phone logic and RF circuit signals. For example: control signals of a logic circuit, baseband signals, local oscillator signals of an RF circuit, intermediate frequency signals, transmission signals, and the like.

In addition to the above commonly used electronic measuring instruments, there are time measuring instruments, bridges, phase meters, dynamic analyzers, optical measuring instruments, strain gauges, flow meters, and the like.