Laplace Instruments Ltd.
The Laplace products are designed and manufactured in he UK, we enable manufacturers to reduce the cost of EMC Testing, increase productivity and reduce the product time to market.
- +44 (0) 16 92 40 20 70
- tech@laplace.co.uk
- Tudor House
Grammar School Road
North Walsham, Norfolk NR28 9JH
United Kingdom of Great Britain and Northern Ireland
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Near Field Probe Set
RF100
The RF100 probe set consists of a passive E field probe and H field probe, BNC adaptor and carry case. The output is via a BNC socket. These are general purpose probes which are ideal for use in conjunction with an EMC measuring system. They are sensitive to sources in close proximity, but are insensitive to background signals. This makes them ideal for the identification of emission frequencies in noisy environments... thus making measurements easier and quicker. The proximity requirement also enables sources to be located and the exit route identified.
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Filter Design System - Mode Analyser
EA-300
The EA-300 is a stand alone unit with internal firmware and a large colour display. It connects to the outputs from a standard LISN and feeds the results to any standard EMC analyser or receiver. The EA-300 prompts the user through the steps necessary to fully characterise the emissions from the EUT, then will output via the screen the recommended filter component values that would reduce these emissions to acceptable levels.
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Ancillaries.. Conducted
The ease and effectiveness of conducted emission measurements can be enhanced by the use of appropriate filters. In particular, broadband noise below the frequencies of interest can cause limiting (compression) in spectrum analysers, distorting the measurements.
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Antennas for EMC testing
The Laplace antennas cover 3 main groups...*Conventional log periodic types for OATS applications.*Miniature antennas for chamber and small enclosure applications.*Large loop antenna for EN55015 compliance testing.
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Pre-Selectors for EMC test
These Pre-Selectors are high specification, switched band filters which track the scanning of the EMC Analyser. Control is via USB link from the Laplace EMCEngineer software supplied with SA1002 and SA3000 analysers. Installation and operation is completely automatic, and the filters will synchronise with the analyser scan without any operator intervention. A front panel switch allows manual operation if required.
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Ancillaries - Radiated
EMC emissions can be at very low signal levels and pre-amplifiers can help to improve S/N ratio. The low level of emission signals can make them difficult to identify in noisy environments. RF filters are designed to attenuate the major sources of noise, thus making the task of measurement easier.
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LISN & Voltage Probes
All commercial LISNs include an artificial hand connection and a transient limiter. This adds a 30dB insertion loss. A 30dB pre-amplifier is included which can be connected in the RF output feed to return the insertion loss to 0dB. The Voltage Probe requirement is covered by our PLIP (Power LIne Interference Probe). This fully meets the requirements of CISPR16, but has additional features:*Fully galvanic isolation between input and output (>1kV), for the safety of operator and analyser!*Shrouded safety clips for attachment to the line to be measured.*Filtered frequency response matched to Band A and B.*Current limiting on the output.*Visual indication of high voltage input.
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Ophir Power Amplifiers
Ophir RF power amplifiers are rugged and reliable. They are available as complete rack mounted units incorporating power supply, fans and heatsinks, or as compact modules requiring a DC supply. Fans and/or heatsinks can be included if required.
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Test Cells (
LaplaCell
LaplaCells provide a facility for the rapid and efficient testing of the EMC compliance of products. These cells offer a calibrated and screened environment in which radiated emissions can be measured and immunity to RF radiation can be tested. They \re calibrated according to the methodology of IEC61000-4-20, thus affording compliant testing to IEC61000-4-3 and pre-compliance testing for radiated emission testing.
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RF Synthesiser
The Laplace Synthesisers cover both conducted and radiated RF immunity test requirements. The frequency coverage extends from 100KHz to 230MHz for conducted tests and 30MHz - 6GHz for radiated tests. They are all controlled from the users PC via a USB link, and powerful Windows software is included to enable the user to control all the parameters of the test, to monitor the test in progress, and to view the results.
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Clean Power Source
AC1000A
The AC1000 achieves its unique price/performance ratio by actively adjusting the incoming mains waveform to produce a clean output. Other suppliers use convertor techniques to completely recreate the output from scratch. Our solution delivers an output which achieves the required THD with the minimum of hardware and expense. It includes the ability to switch the correction in or out so that the original waveform can be observed and measured if required. Overload and thermal protection systems are built-in and produce an audible warning if activated.
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Harmonics & Flicker Analyser
AC2000A
The Laplace Harmonics and Flicker analyser provides the user with a complete system for testing product compliance with IEC61000-3-2 and IEC61000-3-3. Quick and easy to use, the built-in screen provides a clear pass/fail indication of compliance status, plus a full listing of results for each harmonic, in either tabular of bargraph format. The instrument is properly configured to cope with fluctuating harmonics. The Flicker mode provides proper measurement of short term and long term parameters,...show more -
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Emissions Reference Source
ERS
The ERS is a comb generator that radiates RF continuously every 2MHz over the range 30MHz - 1000MHz. Each 2MHz peak is precisely measured during the calibration process with the ERS orientated both vertically and horizontally. These measurements are correlated against a 3m OATS such that any fully implemented CISPR16 site, measuring at 3m and using height scanning, will read the same.
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Source of Signals
CRS+
The CRS+ is a stable and calibrated source of signals which cover the 9KHz - 30MHz frequency range. The fundamental signal is a 15KHz comb and each harmonic is output as a narrowband peak of known amplitude. This signal is output on either the L and N lines, referenced to ground. A switch provides on/off and line selection.
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Power Amplifiers
RF Range
The RF power amplifier range from Laplace is specifically designed for EMC Immunity testing. These are compact units with characteristics matched to the requirements of IEC standards.