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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MP field sources calibration set
The MP field source calibration set is used to measure electric or magnetic fields in a frequency range up to 3 GHz. RF fields or transient fields can be measured. The MP field source calibration set is used to check fields of the Langer EMV-Technik GmbH field sources, fields of TEM cells and IC striplines.
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IC EMC Analysis
We carry out standard measurements according to BISS/IEC and analysis of the interference immunity and interference emissions of ICs during development.With the targeted EMC analysis, we uncover weak points in the ICs so that the IC developer can use them to develop improvements for the product
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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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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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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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Near Field Micro Probes ICR HH H Field
The measuring coil is horizontally located in the probe head. The near field micro probes are operated with a positioning system (Langer Scanner).
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Immunity
ESD coupling
is used for conducted coupling of Langer ESD pulses (200ps rise time) into ICs.
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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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Preamplifier
Is designed for the amplification of measuring signals, e.g. weak signals of near field probes with high resolution.
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Micro probes 1 MHz up to 6 GHz
MFA 01 set
The micro probes are used to measure magnetic fields and they have a high resolution. They measure magnetic fields up to 6 GHz, e.g. at signal conductors (150µm), SMD components (0603-0201) or IC pins. The MFA micro probes are guided by hand. An amplifier stage is integrated into the probe head. The amplifier stage (9V, 100mA) is powered via the Bias tee BT 706. It has an impedance of 50 Ohm. The micro probes are connected via the Bias tee BT 706 to a spectrum analyzer or an oscilloscope. Langer EMV-Technik GmbH includes correction lines in the delivery. With the help of the correction lines the probe output voltage is converted either into the respective magnetic field or to the current which is running through the conductor.
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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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Line-impedance stabilisation network
NNB 21 set
The NNB 21 line impedance stabilization network is designed for measuring of grid bound interferences of a device under test according to the satndard CISPR 25/ISO 7637. It measures the RF interference, which couples into the vehicle electrical system. Measurements during the development in a frequency range from 100 kHz to 1GHz can be carried out.
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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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Immunity
RF coupling
is used for the conducted measurement of the immunity according to IEC 62132-4.
