Русский
NTC-05.08.1 “Electric measurements”
Br0.00
The laboratory bench is designed for using as training equipment when conducting labs in “Electrical measurements” educational course.
- Description
- Experiments provided
- Technical specifications
- Scope of delivery
- Additional equipment (specified when ordering)
Has two h/w versions: full size bench top version and table version.
The following equipment is located inside the housing:
- power supply unit board ± 15 V (current 0.5 A), + 5 V (current 0.5 A), +24 V (current 0.5 A);
- board of peak detector and amplifier/generator of arbitrary waveform ;
- microprocessor measurement system;
- load resistors, capacitor store, inductance;
- digital temperature sensor, thermistor;
- a heating element.
The front panel shows the electrical diagrams of the objects of study. All schemes shown on the panel are divided into groups according to the subject of the work being done. The panel contains switching sockets, indicators of digital devices, analog measuring devices, switching equipment, as well as controls that allow changing the parameters of elements during laboratory experiment.
The controls are:
- laboratory autotransformer (LATR) switch , which allows to change the voltage in the range of 0..40 V with a step of 1 V;
- switches of variable resistors unit, allowing to change the resistance in the range 0..10 kΩ with a step of 1 ohm;
- capacitor toggle switches that allow to change the capacitance within 0..6 μF with a step of 0.1 μF.
To carry out laboratory work, it is necessary to assemble the scheme of the object of research with the help of unified jumpers, which allow to keep the scheme visible.
Measurements are made using digital measuring devices. The stand is accompanied with 2-channel digital USB-oscilloscope as a separete box /device. Сonnected to a PC via USB bus. On the panel of the stand, 9 digital measuring instruments with an accuracy class of at least 1.0 and 4 analog devices with an accuracy class of at least 2.5 are installed.
The training system is supplied with:
- a set of teaching materials and technical documentation intended for the teaching staff;
- software, which allows to:
- save the results of all measurements for subsequent analysis;
- copy the results of all measurements to the clipboard;
- visualize the waveforms of the studied processes.
Experiments provided
1. Study of measuring devices:
- determination of main parameters of analog devices.
- verification of magnetoelectric voltmeter.
- verification of electromagnetic voltmeter.
- verification of magnetoelectric ammeter.
- verification of electromagnetic ammeter.
- verification of digital wattmeter.
- verification of digital power meter.
2. Expanding the limits of measurement, calculation of series resistors and shunts:
- expanding the limits of magnetoelectric voltmeter;
- expanding the limits of magnetoelectric ammeter.
3. Measurement of signal amplitude:
- measurement of amplitude with peak detectors: electronic, open and closed gate;
- measurement of amplitude using oscillographic method.
4. Measurement of parameters of electrical circuit elements using voltmeter and an ammeter method:
- measurement of resistance using indirect method (ammeter and voltmeter).
5. Measurement of parameters of electrical circuit elements using bridge method:
- measurement of resistance using bridge method;
- measurement of capacitance using Sotti bridge;
- measurement of inductance using Wien bridge;
- measurement of inductance using Maxwell bridge.
6. Measurement of parameters of electrical circuit elements using resonance method:
- measurement of inductance using resonance method;
- measurement of inductance using resonance method with substitution in series operation of measured coil;
- measurement of inductance using resonance method with substitution in parallel operation of measured coil;
- measurement of capacitance using resonance method.
- measurement of capacitance using resonance method with substitution in series operation of measured capacitor.
- measurement of capacitance using resonance method with substitution in parallel operation of measured coil.
7. Measurement of deformation, temperature (strain gage and thermistor, thermocouple):
- investigation of thermistor;
- investigation of strain gage.
8. Investigation of digital oscilloscope.
9. Measurement of power:
- measurement of power in DC circuits;
- measurement of power in AC circuits;
- measurement of power using digital wattmeter in three-phase AC circuits.
10. Measurement of frequency and time intervals:
- measurement of frequency using oscillographic method.
Technical specifications
| Power supply | 3~50Hz 380V 3P+PE+N | |
| Power consumption, Watt, max | 300 | |
| Stand overall dimensions, max: | ||
| Width, mm | 1000 | |
| Height, mm | 1470 | |
| Depth, mm | 600 | |
| Weight, kg, max | 50 | |
| Desktop version overall dimensions, max: | ||
| Width, mm | 1000 | |
| Height, mm | 680 | |
| Depth, mm | 600 | |
| Weight, kg, max | 40 | |
Scope of delivery
- laboratory training system – 1 pc.;
- passport – 1pc.;
- set of jumpers – 1 set;
- stopwatch – 1 pc.;
- supplementary materials in electronic format – 1 pc.;
- 2-channel digital USB-oscilloscope – 1 рс.