Langer EMV-Technik GmbH
Langer EMV-Technik GmbH is a medium-sized electro-technical company which is active in the field of electromagnetic compatibility-related
- +49 (0) 351 430093-0
- +49 (0) 351 430093-22
- mail@langer-emv.de
- Nöthnitzer Hang 31
Bannewitz, D-01728
Germany
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Scanner Probe
RFS set
The RFS set consits of three passive near field probes designed for the use in a measurement scanner during the development of E-field and magnetic field. They are designed for frequency ranges of 30 MHz to 3 GHz. The probe heads of the RFS set allow for close measurements needed to correctly localize interference sources on an electronic assembly. They document the whole image of the device under test`s near field. The scanner probes have a sheath current attenuation and are electrically shielded. They are connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They do not have an internal terminating resistance. The measuring signal can be increased with PA 203 or PA 303 preamplifier. On request RFS, LFS and XFS scanner probes can be produced.
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MP CI set
The MP CI set up to measure coupling impedance is used to determine EMC characteristics of connectors and cables. The coupling inductivity defines the coupling inductance of external disturbance on the shield or on the ground with the desired signals. If the coupling inductivity is considered in the construction set-up and the pin or wire assignment of connectors or cables, then the connectors or cables will be more interference-resistant. The MP CI set-up for measuring coupling impedance can be used for following measurements at connectors or cables: 1. measurement of a single signal (common mode) 2. measurement of a symmetrical signal (common mode) 3. measurement of a symmetrical signal (differential mode)
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Accessory EFT/Burst generators IEC 61000-4-4
The field sources and the burst transformer are used to harden the device under test. They are powered by an EFT/burst generator.
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Optical signal transmission
Bus systems
Allows for the transmission of high speed CAN signals via optical fibre cables during EMC tests or when there are great potential differences (high voltage).
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Near Field Microprobe E-field 7 MHz to 3 GHz
ICR E150
The near field microprobe is used to measure electric fields at extremely high resolution and sensitivity. The optimal distance to the object being measured is < 1 mm. Due to its small probe head dimension, the probe has to be moved by a manual or automatic positioning system, e.g. Langer-Scanner.
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Optical signal transmission
Digital
The fibre optic cable are used to transmit digital signals from the device under test under EFT/burst interference.
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Near Field Probes 30 MHz up to 6 GHz
XF1 set
The XF1 set of near field probes consists of 4 passive near field probes and one passive E field probe for making measurements in the development phase of the magnetic and electric fields in ranges from 30 MHz to 6 GHz. Due to their integrated impendance matching, the probes are less sensitive in the lower frequency range than the RF type probes. The probe heads of the XF1 set allow for the step by step identification of interference sources of the magnetic field on an electronic assembly. At first, for example the XF-R 400-1 detects the fields which the assembly emits in total. Next, using higher resolution probes the interference sources can be more precisely detected. The E field probe is used for the detection of electric interfering fields near the assemblies. With trained use of the near field probes, field orientation and field distribution can be detected. The near field probes are small and handy. They have a sheath current attenuation and are electrically shielded. They can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They have an internal terminating resistance.
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Immunity
EFT coupling
s used for direct-contact measurements of impulse immunity in IC pins, according to IEC 62215-3 and IEC 61000-4-4.
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Immunity
RF coupling
is used for the conducted measurement of the immunity according to IEC 62132-4.
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Measurement Technology for Teaching and Training
Is particulary suitable for training and further education. With the disturbance emission model, a variety of different experiments which improves one`s understanding of electromagnetic processes in modern electronic engineering are possible. The coupling mechanisms of disturbance emissions are visualized from their sources to the antenna. The impacts of EMC measures are then easier to understand. At VM 251 the electromagnetic d
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Measurement Technology for the Development Stage
EMC tools for relative measurements of interference emission of assemblies and devices.
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H-Field Burst Detector
BD 11
The BD 11 is used to detect a burst or ESD current pulse on a cable, for example in a complex system. This makes it easier to investigate the causes of sporadic faults in the system. It is small and handy, its sensitivity is very high and continuously adjustable.
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Mini Burst Field Generators
Mini burst field generators are small and handy burst generators used to detect weak spots in the device under test.
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Optical Signal Transmission
Analog
Used for oscillographing analog signals under EFT/EDS/RF interference.
