Measurement Testing

Mjr · Site Admin Joined: 13 Jul 2005 Posts: 294

The Integrated Measurement System (IMS) from ROHDE&SCHWARZ is a one-box solution for portable EMC-testing needs.

Compact Design:

The Integrated Measurement System IMS offers everything needed in a modern EMC test system, including:

* Signal source
* Signal switching
* Power measurement
* Control and switching for up to three amplifiers, including interlock
* R&S IMS operating system: fully compliant test software for EMS and EMI measurements
* Integrated amplifier
* Spectrum analyzer

Applications:

A compact instrument for EMC measurements for:

* Commercial standards
* Military standards
* Automotive standards
* Measurements supporting development
* Certification measurements

EMI measurements are possible with the reliable Test Receivers ESCI and ESPI (visit http://www.rohde-schwarz.com/ for more details).

Efficient and flexible

* Easy test setup – only a few additional components required
* Compact design – low space requirements – easy installation
* Plug & play – connect controller via USB interface and start measurements
* Cost-efficient, fully automatic measurements
* Further extensions possible

The Integrated Measurement System IMS is a complete EMC test system for compliance tests in accordance with commercial, military and automotive standards from 9 kHz to 3 GHz. It also supports the Test Receivers R&S ESCI und R&S ESPI for EMI measurements.

Signal generation

The analog modulation types AM, FM, φM and PM are available. The optional Generator Interlock Relay R&S IMS-B3 makes it possible to insert a 50 Ω termination rather than the generator signal if an interlock loop is open.

Power measurement

The Power Sensor R&S NRP-Z91 is used to measure forward and reflected power and to monitor, for example, injected current in the case of bulk current injection (BCI). A fast, wear-free PIN diode switch allows switching between forward power, reflected power and monitoring. It is also used for system calibration. Additional power sensors can also be implemented (option R&S IMS-B7 required).

Spectrum analyzer module

If the optional Spectrum Analyzer Module R&S IMS-B1 is added, frequencyselective power measurements can be performed. This makes it possible, for example, to take harmonic components of the amplifier into account at the 1 dB compression point. Another application is current monitoring with the BCI method in the automotive range (checking of the first five harmonics).

RF switching unit

The RF switching unit handles the switching of all R&S IMS RF paths for up to three amplifiers. Two amplifier outputs can be switched to two different transducers (e.g. antennas, current probes) or connection points (e.g. in anechoic chambers and shielded enclosures) by means of the optional Transfer Relay R&S IMS-B2.

Internal amplifier module

Conducted measurements can be performed using an internal amplifier module (R&S IMS model 04), which has a frequency range of 9 kHz to 250 MHz. The minimum amplifier power of 25 W (CW lin) permits measurements with coupling/decoupling networks (CDN) at a test voltage of 10 V in accordance with EN 61000-4-6.

External amplifiers

Amplifiers with an authorized USB control (e.g. from BONN Elektronik GmbH) can be integrated into the system via plug & play. Other amplifiers can be controlled using the GPIB extension (option R&S IMS-B4). Up to three amplifiers can be controlled and connected.

Interlock

The R&S IMS operating system supports the control of an interlock loop for monitoring security functions during the EMS measurement, e.g. door contacts and amplifier status.

Extension for EMI measurements

The Test Receivers R&S ESCI and R&S ESPI are supported for EMI measurements. A GPIB interface is required (R&S TS-PIEC2). Other test receivers and spectrum analyzers can be integrated using the option R&S IMS-B4, which upgrades the R&S IMS operating system to R&S EMC32-A+.

EUT monitoring

To allow EUT monitoring during the EMC test, the R&S IMS has four digital inputs. These inputs can be queried either individually or together. To allow EUT stimulation, the R&S IMS provides four digital outputs (static values or pulse signals).

For more info, visit: http://www.rohde-schwarz.com/