Equipment for emc test and effectively measurement, radiated and conducted

Transkript

1 Equipment for emc test and effectively measurement, radiated and conducted - Emission - High Energy pulses - Household - Immunity - Fast pulsed fields - Medical - Calibration - High power - Telecommunication - Shielding effectiveness - High voltage - Industry / ITE - EMP / NEMP generator - Chemical industry - NEMP transmission line - Automotive - NAMUR 21

2 TEST EQUIPMENT SUMMARY Helmholtz Coil Different models of Helmholtz coils are available from a diameter of 5 cm up to 1.8 meter. The power generator and the associated equipment are an option. Frequency range: DC - 1 MHz Magnetic field: up to 50 ka/m High Power LISN Current capacity: up to 1000 A (continuous). Voltage: up to 1'000 V Safety circuit included. Options: protection devices and coaxial relay for remote control. Open TEM-Cells The advantage of our TEM cells is that they are open and it is very easy to control the functions of the equipment under test. In comparison with other closed TEM cells, the price is low. Models: from 200 MHz up to 3 GHz Options: filter box, special dimensions Closed TEM-Cells This TEM cells is specially designed for the immunity tests on automotive devices according to ISO (1995) or to SAE J Available in different dimensions. Options: filter box, special version for IC's testing Triplate Specially designed according to the standard SAE J A test table is integrated under the triplate. Frequency range is DC to 1 GHz. Impedance: 50 Ω Stripline This stripline is designed for immunity tests on road vehicles according to ISO (1995). Rugged construction with table that can be slopped vertically. Frequency range: DC to 1 GHz. Models available: 50 Ω or 90 Ω. Other models on request

3 TEST EQUIPMENT SUMMARY Shielded Box A shielded box specially designed for the protection of an oscilloscope or of similar equipment in a disturbed environment. The shielded window allows an easy observation of the display of the measuring equipment Frequency range: DC - 3 GHz Shielding effectiveness: MHz / 20 3 GHz Harmonic Comb Generator Very small generator (height: 10 cm) designed for periodical controls of EMC test sites and for shielding effectiveness measurement of small boxes. Frequency range: 10 MHz GHz (usable up to 5 GHz) 10 m: up to 85 dbµv/m Other models: generators for LISN and for magnetic field CDN s according to NAMUR Standard NAMUR NE 21 / CENELEC EN , Frequencyrange from 10 khz 80 MHz, Impedance 150 Ohm, Maximum voltage zo ground 275 Vac, Maximum current EUT/AE 10Arms, Maximum test voltage 10 Vemf, Maximum RF power 10W EMP / NEMP Generators NEMP generators and transmission lines for immunity tests, for instance according to MIL Std 461E / RS105. Example: 100 kv/m and 0.8 ns. Electromagnetic Field Sensors This field sensor is designed for the measurement of fast pulsed fields, especially for the MIL-STD-461E immunity tests. Available for electric or magnetic field measurement Frequency limit: up to 1 GHz. Large GTEM Cells We design and manufacture very large GTEM (size from 3.75 meter height). The open GTEM cells are also available for any dimensions. Other models on request

4 Harmonic Comb Generator - E-Field This harmonic comb generator is designed for the periodical control of the radiated field measurement site. With this equipment it is possible to control the reproducibility of the whole measurement system from the antenna to the spectrum analyser including the cabling, preamplifiers, receiver, quasi-peak detector, etc. The equipment is also designed to measure the shielding effectiveness of small boxes and cubicles. The repetition frequency can be changed with a remote control (optic fibre) in order to increase the dynamic in level and frequency. Repetition frequency 10 MHz or 50 MHz Frequency range 10 MHz - > 5 GHz Frequency stability (10-75 ºC) +/- 100 ppm (quartz) Level stability (10-50 ºC) 0.25 db Level stability (7-13 V dc ) 0.02 db Radiated field polarisation mainly vertical RF Level (50 MHz repetition) up to m at least m (see next page) Battery life (generator) Battery type Optic fibre type MHz / 8 50 MHz 6LR61 9 V (rechargeable batteries can be used but the duration of the emission will be shorter) Plastic fibre HFBR Size 114 x 72 x 38 mm (without antenna) 114 x 72 x 130 mm (with antenna) Weight (with battery) 180 g

5 Harmonic Comb Generator - H-Field This harmonic comb generator is designed to measure the shielding effectiveness of little boxes. Due to the very small size of the generator and of the antenna (in option: very small antennas), it is possible to place it directly in the box and to measure the radiation outside. The comparison between the measurement with and without the box gives directly the shielding effectiveness of the box. The equipment contains a pulse generator with a repetition frequency control, an antenna, an optic fiber and a remote control. The equipment has a rugged and small metal case and is supplied with rechargeable batteries. Frequency range Frequency stability HF 1 MHz rep. freq. Repetition frequency Battery life (comb generator) Battery type (generator) Battery type (remote control) Optic fiber type Charging duration Size (with battery) Weight (with battery) 10 khz - 30 MHz given by the quartz at least 75 1 m 10 khz or 1 MHz 15 hours 12 V 800 mah lead-acid 9 V plastic fiber HFBR ma 95 x 70 x 70 mm 0.6 kg

6 Harmonic Comb Generator for LISN This calibration generator is designed for the periodical control of the LISN (line impedance stabilization network) or of other devices. With this harmonic comb generator it is possible to control the reproducibility of the whole measurement system from the LISN to the spectrum analyser including the cabling, protection circuits, receiver, quasi-peak detector, etc. The equipment contains a pulse generator with a variable frequency control and a coupling network. The equipment has a rugged isolated case and is supplied with batteries. An output for the direct connection to the LISN (protected by a fuse) and a RF 50 ohm output are available. Repetition frequency 0.1 Hz to 10 MHz (step ) Frequency range 0.1 Hz up to 2 GHz Pulse voltage 2.7 V (on 50 ohm) Frequency stability (10-75 ºC) +/- 100 ppm (quartz) Level stability (10-50 ºC) 0.25 db Level stability (7-13 V dc ) 0.02 db Maximum output level up to MHz at the 50 Ω output Battery life MHz / Hz Battery type 6LR6 9 V (rechargeable batteries can be used) Input for external supply : 8-16 Vdc Output impedance 50 Ω (BNC connector) Safety designed to protection class II Size 165 x 115 x 60 mm Weight (with battery) 430 g

7 1 GHz electric / magnetic field sensors These field sensors are designed for the measurement of fast pulsed fields, especially for the MIL- STD-461E / RS 105 immunity tests. They consist of a derivative sensor and a passive integrator. The output of the integrator can be connected directly to a fast oscilloscope. Two different models are available for the measurement of the electric and the magnetic component of the field. Without integrator, these field sensors can be used for the precise control of the field in TEM and GTEM cells. Sensor type (derivative) electric (D-dot) magnetic (B-dot) Sensitivity 40 mv / kv/m 10 mv / kv/m Impedance Output impedance Overall frequency limit Cable Connector Size (L x W x H) 50 ohm 1 Mohm 1 GHz (- 3 db) Semirigid 50 ohm / 10 meter type N 50 ohm 24 x 8 x 4 cm 3 GHz version available.

8 Line Impedance (MIL) Stabilisation Network 200 to 1000 A This Line Impedance Stabilisation Network (LISN) is specially designed for the measurement of mains disturbances on high power equipment according to European standards (CE) and to MIL-Std. The continuous current capacity is up to 1'000 A. A security switch is installed on the door of the LISN cabinet and an output connector gives the opportunity to build an external security circuit. The cabinet are easy move and the connexion is simple. This equipment includes in option coaxial cables, protection devices and a coaxial relay for remote control. LISN: Type LISN LISN LISN Continuous Current 4 x 200 A 500 A 1000 A Type MIL-Std 461 E, pp Voltage 230 / 400 V (option: 460 / 800 V) Coupling 3 phases + N 1 phase 1 phase Impedance 50 µh < ± 20% Frequency Range 10 khz - 30 MHz Mains Connector screws M12 Signal Connector N 50 Ω Dimensions 380 x 600 x 350 mm Weight 35 kg 29 kg 50 kg Protection circuits: Impedance Frequency Range Attenuation Input Level 50 Ω MHz 10 or 20 db < 3,7 V / < 12 V Other models are available on request (50 Ω // 50 µh A or high voltage versions)

9 Line Impedance (V) Stabilisation Network 200 to 1000 A This Line Impedance Stabilisation Network (LISN) is specially designed for the measurement of mains disturbances on high power equipment according to European standards (CE). The continuous current capacity is up to 1'000 A. A security switch is installed on the door of the LISN cabinet and an output connector gives the opportunity to build an external security circuit. The cabinet are easy move and the connexion is simple. This equipment includes in option coaxial cables, protection devices and a coaxial relay for remote control. LISN: Type LISN LISN LISN Continuous Current 4 x 200 A 500 A 1000 A Type V 50 Ω // 50 µh according to CISPR 16 subcl (band B) Voltage 230 / 400 V (option: 460 / 800 V) Coupling 3 phases + N 1 phase 1 phase Impedance 50 Ω // 50 µh < ± 20% Frequency Range Mains Connector Signal Connector Dimensions 150 khz - 30 MHz screws M12 N 50 Ω 380 x 600 x 350 mm Weight 35 kg 29 kg 50 kg Protection circuits: Impedance Frequency Range Attenuation Input Level 50 Ω MHz 10 or 20 db < 3,7 V / < 12 V Other models are available on request (V 50 Ω // 5 µh A or high voltage versions)

10 Helmholtz coil These Helmholtz coils are designed to test the immunity of electronic equipment to magnetic fields, for instance according to European standards (CE) or to MIL-standards. The field is homogeneous for most of the volume and is sufficiently precise to calibrate magnetic field probes. It is possible to change the orientation of the coil very easily in order to test the 3 directions of the field. The power generator and the associated equipment are proposed as an option. Coil type HC180 HC150 HC60 HC30 Coil diameter 1.8 m 1.5 m 0.6 m 0.3 m Resonance frequency 300 khz 350 khz 450 khz 1.3 MHz Frequency range DC khz DC khz DC khz DC khz Coil factor 7.15 A/m / A 7.64 A/m / A 11.9 A/m / A 100 A/m / A Max. field in the centre 290 A/m 305 A/m 475 A/m 1'200 A/m Dimensions (LxWxH) 2 x 1.1 x 2.3 m 1.6 x 1 x 1.8 m 0.7 x 0.4 x 0.8 m 0.3 x 0.2 x 0.3 m Usable volume 1.1 x 1.1 x 1.1 m 0.9 x 0.9 x 0.9 m 0.4 x 0.4 x 0.4 m 0.2 x 0.2 x 0.2 m Weight 80 kg 70 kg 45 kg 25 kg Max. input current 40 A Homogeneity ± 10 % Linearity < ± 1 % Construction type non-magnetic (plywood or plastic) Connectors 4 mm Other models are available on request.

11 CDN according to NAMUR Standard Frequency range Impedance Maximum test voltage Maximum voltage to ground Maximum current EUT/AE RF input connector Connectors Maximum RF power Dimensions Weight NAMUR NE 21 CENELEC EN khz 80 MHz 150 Ω 10 Vemf 275 Vac 10 Arms BNC 4 mm safety sockets 10 W 190 x 120 (138) x 80 mm 1 Kg Other models are available on request.

12 Shielded box The measurement of signals in a disturbed environment is not easy. In this case it is required to protect the measuring equipment by a shielded box. Disturbed environments are high voltage power plant, EMC labs, transmitter stations, etc. The shielded box we propose is specially designed for the protection of an oscilloscope or of similar equipment. It is easy to observe the display of the measuring equipment through the shielded window. The door open easily and the box is light. Minimum shielding attenuation Power input Signal input Dimensions (W x H x D) Door opening Window size Weight 60 f 100 MHz MHz < f 1 GHz 20 1 GHz < f 3 GHz 2 x 6 A / 230 V filtered N 50 ohm connectors 61 x 52 x 73 cm 57 x 48 cm 31 x 25 cm 29 kg Others dimensions available.

13 Stripline 1 GHz 50 Ohm This stripline is designed for immunity tests on automotive devices according to ISO The stripline is fixed on a table and is easy to move. The table can be sloped vertically in order to reduce the width. It is also possible to divide very easily the stripline in 2 parts for the storage or during the transport. It is the only stripline on the market able to carry out test up to 1 GHz with excellent return loss. The standard impedance is 50 Ohm. Frequency range Max. input power Wave impedance Impedance 0 to 1 GHz 1 kw long term 377 Ω 50 Ω +/- < 5 Ω VSWR better than 1.25 Return loss Connector type better than 20 db N 50 Ω Field homogeneity approx. 2 x 0.37 x 0.05 m (L x W x H) Height of the plate Height of the table Size (L x W x H) Weight 15 cm over ground plane 90 cm 430 x 150 x 105 cm (service position) 2 * 215 x 85 x 165 cm (storage) approx. 140 kg The following options are available: - 90 Ω version - filter box.

14 Stripline 1 GHz 90 Ohm This stripline is designed for immunity tests on automotive devices according to ISO with an impedance of 90 Ohm. The stripline is easy to move and it is possible to pivot the table in order to reduce the width of the equipment. It is the only stripline on the market able to carry out test up to 1 GHz with an excellent return loss. An impedance adapter Ohm is available as an option. Frequency range Max. input power Wave impedance Impedance VSWR Return loss Connector type Height of the plate Height of the table Size (L x W x H) Weight 0 to 1 GHz > 200 W continuous 377 Ω 90 Ω ± < 6 Ω < 1.4 up to 1 GHz > 17 db up to 1 GHz N 75 Ohm 15 cm over ground plane 80 cm 350 x 90 x 100 cm approx. 90 kg The following options are available: - impedance adapter Ohm / 100 W - filter box - other height under plate.

15 Closed TEM Cells The closed TEM cells TEMF200 and TEMF500 are specially designed for the immunity tests on automotive devices according to ISO and to SAE J The TEMF1000 and TEMF3000 allow immunity tests on small devices and require a low power amplifier. Therefore the test installation is much more cheaper compared with an absorber room with antennas. The TEM (Transverse Electro-Magnetic) mode is the only mode produced in the cell below the cut-off frequency. The electric field is vertical and the magnetic field horizontal. The wave impedance is 377 Ω. The field conditions inside the cell are similar to far field conditions. An optional filter box can be placed behind the cell for power and signal lines connections. For the automotive tests, the recommended minimum power of the amplifier is 100 W (TEMF200) and 50 W (TEMF500). It is also possible to use the cell for the radiation measurement, under certain conditions. Cell Type TEMF200 TEMF500 TEMF1000 * TEMF3000 * Frequency range DC MHz DC MHz DC - 1 GHz DC - 3 GHz Height under the plate 30 cm 10 cm 7.4 cm 2.5 cm Max. input power 1.6 kw long term 1 kw long term 750 W long term 400 W long term Field for a 25 W amplifier 118 V/m 350 V/m 475 V/m 1.4 kv/m Impedance 50 Ω ± 5 Ω 50 Ω ± 5 Ω 50 Ω ± 7 Ω 50 Ω ± 7 Ω VSWR < 1.1 < 1.1 < 1.2 < 1.2 Return loss > 25 db > 25 db > 20 db > 20 db Connector type N 50 Ω N 50 Ω N 50 Ω N or SMA 50 Ω Size (l x w x h) 130 x 70 x 62 cm 60 x 30 x 22 cm 45 x 22 x 16 cm 15 x 8 x 6 cm Door size 55 x 55 cm 20 x 20 cm 14 x 14 cm 5 x 5 cm Weight approx. 29 kg approx. 20 kg approx. 15 kg approx. 8 kg * can be equipped with a test set-up for IC or PCB according to SAE J Option: signal and power supply filters. Other models are available on request.

16 Open TEM cells These open TEM cells (tri-plate cells) are well suited for immunity testing of small objects according to European (CE) and automotive standards (SAE J ) or for biological experiments. The advantage of these TEM cells is that they are open and it is very easy to control the functions of the equipment under test. The applications are for instance the immunity testing of watches, pagers, telephones or PCB's. In comparison with other closed TEM cells, the price is low. The field decreases rapidly outside the open TEM cells (approx. 33 db at 1 meter) and it is therefore possible to use an open TEM cell in ordinary facilities. Another very interesting application is the calibration of field probes because the field inside the TEM cell is known with high precision. TEM cells are the most precise structures for field calibrations. Cell type TEM220 TEM500 TEM1000 * TEM3000 * Frequency range DC MHz DC MHz DC - 1 GHz DC - 3 GHz Height under plate 33.3 cm 14.7 cm 7.4 cm 2.5 cm Max. input power 1.5 kw 1 kw 750 W 400 W Maximum field 800 V/m 1.5 kv/m 2.6 kv/m 5.6 kv/m Field for a 25 W amplifier 105 V/m 215 V/m 240 V/m 475 V/m Dimensions ( Lx W x H) 180 x 160 x 73 cm 102 x 90 x 36cm 54 x 45 x 16.8 cm 40 x 18 x 6 cm Weight 55 kg 13.5 kg 3.5 kg 3 kg Field precision ± 5 % Connector Cell impedance Wave impedance VSWR type N 50 Ω 50 Ω 377 Ω < 1.2 (< 1.5 for the TEM3000) * can be equipped with a test set-up for IC or PCB according to SAE J Option: signal and power supply filters. Other models are available on request.

17 Triplate line This triplate line is designed for immunity tests on automotive devices according to SAE J A test table easy to move is integrated under the triplate line. Frequency range Maximum input power Line impedance Input impedance (DC) 10 khz to 1 GHz 1 kw long term approx. 75 Ω 50 Ω VSWR better than 2:1 Connector type Height of the plate Height of the table Size (L x W x H) Weight N 50 Ω 30 cm over ground plane 80 cm 3 x 1.25 x 1.62 m approx. 55 kg

18 DESIGN AND TECHNICAL SUPPORT FOR GTEM CELLS Offered Services - Design and engineering of very large size GTEM cells - Construction of GTEM cells and complete design of the whole installation - Electromagnetic field computation - Final measurements and experimental validation - Development of software packages to control measurements in GTEM cells - Design of other TEM structures (e.g. open structures) - Design and construction of electromagnetic field antennas and sensors References - Design of the GTEM cell (Patent ABB) - Technical support for patent-holders for many years - General contractor for the world's largest GTEM cell (Swiss Army) - Development and construction of stripline, antennas and TEM cells for several customers