National Institute for Research and Development in Electrical Engineering ICPE-CA

Sigla ICPE-CA MINISTRY OF RESEARCH AND INNOVATION Sigla MEC romana english


Investigation of the polymeric products behavior in condition of heat stress, UV radiation and nuclear: Details

2. Electromagnetic Compatibility:


Contemporary society uses the electromagnetic field at different frequencies from zero frequency up to several hundred GHz.
Applications are in a large range (to be found in the economy and transport, in domestic, military or medical) and are related to the transport of electricity, industrial or domestic applications, radio or TV emissions, the cellular communications, of wireless data transmissions and information, and position detection systems, etc.
TV and radio emissions are made at frequencies that range from several hundred kHz and reach nearly 800 MHz, and transmitted power varies from approx. 100 W up to several hundred kW.
Uses microwaves (MW) in mobile communications or radar detection known also exponential growth in recent decades. These applications cover the frequency range between 0.3 and 300 GHz.
Under these conditions, a major problem is to ensure a satisfactory operation of systems / equipment / appliances in the electromagnetic environment without producing noticeable disturbance of, or interfere with other devices. On the other hand, a very topical issue is the action of electromagnetic fields (produced by the operation of various communications systems or equipment) on biological structures.
As a natural conclusion, electromagnetic shielding becomes a critical issue for society today, both in the sense of electronic equipment secure and in order to protect biological.

Endowments:
Anechoic chamber

Equipments:

G-TEM Cell;
Signal generator;
Spectrum analyzer E7405A;
Amplifier 10S4G18A;
Amplifier BSA 0104-15/10D;
E4417A EPM-P Series Dual-Channel Power Meter;
Horn Antenna 3115;
Ultralog antenna HL562;
Spectrometer TPS 3000;
Chamber of thermovision ThermaCam P620;
Impedance analyzer 4294A;
Device for determining the surface and volume resistance;
Analyzer R&S ZVB4, 2 ports, 300 kHz - 4 GHz - ROHDE & SCHWARZ Osterreich Ges.m.b.H;
Spectrum and Signal Analyzer of type Rodhe & Schwartz FSP, in frequency range 9 kHz - 16.6 GHz;
System TS-EMF - portable isotropic antenna;

Anechoic chamber
Performance: frequency range: 200 MHz - 18 GHz.
Chamber is certified in according to SR EN 50147-1:1999.
In this chamber are made the following measurements:
• Immunity testing for equipment to radiated radio frequency electromagnetic fields;
• Testing to fast power pulse on living organisms and electric devices;
• Testing of immunity at shock waves on living organisms and electric devices;
• Testing of immunity at oscillating waves of living tissues and electric devices;
• Testing of immunity at static electricity on living tissues and electric devices;
• Characterization of materials in radio frequency field RF (e, |a, a).
• Measuring the intensity of electric, magnetic fields and specific power of electromagnetic field;
• Measuring the electromagnetic screens attenuation used to protect electronic devices, buildings and/or populations exposed to electromagnetic radiations;

Investigation of the polymeric products behavior in condition of heat stress, UV radiation and nuclear
- Evaluation of the oxidation and / or aging of polymeric materials;
- The level of efficiency of antioxidant activity of synthetic and natural compounds;
- Control processes for making polymeric materials
- Correlation of structural changes induced by climatic factors -
- Establish operating limits of polymer products by accelerated degradation tests,
- Characterization of degradation conditions for organic products such oils, greases.
Characteristics:
• Room temperature - 250°C;
• Methods of measurement:
- isotherm (intensity / time);
- grade - 87 steps programmable
- non-isotherm (intensity / temperature)

Camera of thermovision ThermaCam P620

- spectral analysis of infrared images for electrical circuits, fire prevention, electrical connections, buildings, etc.
Technical characteristics:
• Field of view: - 22° horizontal x 16° vertical;
• Min. Focus distance: - 0.15m;
• Zoom: Infrared, 8x;
• Spectral field: - 8µm ÷ 14 µm;
• Resolution in temperature: - ≤ 0.05°C la 30°C.

Horn Antenna 3115

Frequency: 1 - 18 GHz;
Input power: 300W;


Ultralog antenna HL562

Frequency 30MHz - 3GHz

Signal Generator

250kHz - 40GHz;
Amplitude: 0 to 65dB.

Amplifier 10S4G18A
Input impedance 50 ohms, VSWR 2.5:1 maximum;
Frequency: 4 - 18 GHz instantaneous;
Output impedance 50 ohms, nominal;
Output power: 20 W;

G-TEM Cell
Producer: ETS Lindgreen - Holland;
RE Tests - 9kHz-5GHz;
RI Tests - DC 20GHz;
VSWR: ≤ 1,5:1;
Attenuation min 80dB in the range 10kHz-1GHz.

Device for determining the surface and volume resistance

High-Resistance Meter - 4339B
Voltage 0-1000Vcc
Current 100pA-100uA
Resistance 103 - 1,6 x 1016Ohms

Amplifier BSA 0104-15/10D

Frequency: 9 kHz - 4.2 GHz;
Input minimum power -30 dBm (7 mV);
Output minimum power:
15W(+41.8 dBm) 9 kHz - 250MHz;
10W (+40.0 dBm) 200-4200MHz;
Input maximum power: +10dBm.

System TS-EMF - portable isotropic antenna

Connection RF;
R&S TS-EMF (1158.9295.03);
Frequency range: 30 MHz ... 3 GHz;
Level of electric field: 1 mV/m ... 100 V/m.
Protected at environment and mechanical accidents;

Spectrum analyzer E7405A
Frequency: 9kHz - 26.5GHz;
Read frequency accuracy (start, stop, center, marker) ±(frequency indication x error of reference frequency + span accuracy + 15% of RBW + 10 Hz) + 1 Hz x harmonic mixing module);
Input attenuator: 0 at 65 dB, in steps of 5dB;
Input power: +30dBm (1W);
Pulse power:+50dBm (100W), (input attenuator ≥ 30dB;
Output reference amplitude: -20dBm (nominal).

E4417A EPM-P Series Dual-Channel Power Meter
Frequency 9 kHz to 110 GHz, sensor dependent;
Power sensor E4412A (E series CW power sensor);
Power range: 100pW - 100mW (-70 -+20 dBm);
Frequency: 10 MHz - 18 GHz;
Max. power: - 200 mW (+23 dBm);
Power sensor E9304A (E series AVG power sensor);
Frequency: 9 kHz - 6 GHz;
Power range: 1 nW - 100 mW (-60 - +20dBm);
Max. power: 320 mW (+25 dBm);

Spectrometer TPS 3000
Applications: Characterization of materials in any state: solid, liquid or gas; Analyze the chemical composition; Spectroscopy characterization; Determining the refractive index; Detection of impurities, explosives; Integrity of tablets.
Technical characteristics:
- spectral range: 0.1 - 3 THz;
- operating geometry: transmission & reflesion;
- frequency resolution - ≤ 5 GHz;
- dynamic range: 70dB;
- spectral resolution 1-10MHz;
- bandwidth ≥ 10nm; Analysis TDS.
- pulse repetition rate 80MHz;
- detector THz; transmitter THz;

Analyzer R&S ZVB4, 2 ports, 300 kHz - 4 GHz - ROHDE & SCHWARZ Osterreich Ges.m.b.H

Caracteristici:
• R&S ZVB4 (1145.1010.04) - Vector network analyzer, 2 ports, 300kHz - 4Ghz;
• R&S ZV-Z91 (1301.7572.25) - Flexible Precision Cable 50Ω N(m)/N(m); DC to 18GHz; 635mm (25inch).

Impedance analyzer 4294A

Measurement range: 40Hz - 110MHz;
- Determining the dielectric permittivity, loss angle tangent (EC 60250);
- Determining the magnetic permeability (IEC 60205);
in frequency range 40Hz - 30MHz.
Measurement kit components16047E, 40 Hz to 110 MHz;
Measurement kit SMD 16034G;
Measurement kit for magnetic materials 16454A.

Spectrum and Signal Analyzer of type Rodhe & Schwartz FSP, in frequency range 9 kHz - 16.6 GHz
Technical characteristics:
- Frequency range 9 kHz to 13.6 GHz;
- Resolution bandwidth: 1 Hz to 10 MHz;
- Average noise for display: -155 dBm (1 Hz);
- Phase noise: - 113 dB (1 Hz), la 10 kHz;
- Channel filters: 100 Hz to 5 MHz and filters RRC;
- Filter FFT: 1Hz to 30 kHz;
- Accuracy: incertitude of measurement 0.5 dB up to 3.6 GHz.