Programming Fundamentals

Improving Measurement Speed

Select phase noise performance

[:SENSe]:FREQuency:SYNThesis can be used to optimize either phase noise performance or tuning speed. In some settings optimizing for tuning speed reduces sweep time and the “re-tune” time between sweeps. In other settings only the re-tune time is improved.

Use binary data format instead of ASCII

The ASCII data format is the instrument default since it is easier for people to understand and is required by SCPI for *RST. However, data input/output is faster using the binary formats.

:FORMat:DATA REAL,64 selects the 64-bit binary data format for all your numerical data queries. You may need to swap the byte order if you are using a PC rather than UNIX. NORMal is the default byte order. Use :FORMat:BORDer SWAP to change the byte order so that the least significant byte is sent first.

When using the binary format, data is sent in a block of bytes with an ASCII header. A data query would return the block of data in the following format: #DNNN<nnn

binary data bytes>

To parse the data:

•Read two characters (#D), where D tells you how many N characters follow the D character.

•Read D characters, the resulting integer specifies the number of data bytes sent.

•Read the bytes into a real array.

For example, suppose the header is #512320.

•The first character/digit in the header (5) tells you how many additional digits there are in the header.

•The 12320 means 12 thousand, 3 hundred, 20 data bytes follow the header.

•Divide this number of bytes by your current data format (bytes/data point),

8 for real, 64. For this example, there are 1540 data points in the block of data.

Minimize the number of GPIB transactions.

When you are using the GPIB for control of your instrument, each transaction requires driver overhead and bus handshaking, so minimizing these transactions reduces the time used.

You can reduce bus transactions by sending multiple commands per transaction. See the information on “Putting Multiple Commands on the Same Line” in the SCPI Language Basics section.

If you are using the pre-configured MEASURE key measurements and are making the same measurement multiple times with small changes in the measurement setup, use the single READ command. It is faster then using INITiate and FETCh.

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Agilent Technologies Model A.08.xx manual Select phase noise performance, Use binary data format instead of Ascii
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Model A.08.xx specifications

Agilent Technologies has long been a leader in the field of measurement and analytical instrumentation, and their Model A.08.xx is a prime example of this expertise. This advanced instrument is designed for a wide array of applications, spanning from life sciences to chemical analysis, offering unparalleled precision and reliability to meet the demands of laboratory environments.

One of the main features of the A.08.xx model is its advanced measurement capabilities. The instrument boasts a high-resolution detector that provides exceptional sensitivity, allowing researchers to detect even trace levels of analytes in complex samples. The enhanced signal-to-noise ratio is particularly beneficial for users working with low concentrations, ensuring accurate results without the need for laborious sample preparation.

The A.08.xx is equipped with state-of-the-art technologies that significantly enhance its performance. One such technology is its multi-wavelength detection system, which allows simultaneous analysis of multiple compounds within a single run. This not only boosts efficiency but also reduces the time required for method development and validation. Additionally, the model utilizes sophisticated software for data analysis, providing users with intuitive tools to interpret results quickly and effectively.

Another characteristic of the A.08.xx is its robust build quality and user-friendly interface. Designed for rigorous laboratory use, the instrument can withstand the demanding conditions of a busy research environment. Its intuitive touchscreen display simplifies operations, allowing users to set up experiments and navigate through various functions with ease. This user-centric design reduces the learning curve for new operators, enhancing productivity in the lab.

The A.08.xx also incorporates connectivity features that align with modern laboratory needs. With options for remote monitoring and data sharing, researchers can easily collaborate and access results in real-time, streamlining workflows and promoting innovation.

In conclusion, Agilent Technologies’ Model A.08.xx is not just an analytical instrument; it is a comprehensive solution for researchers and scientists seeking reliability and performance in their analytical work. With its advanced measurement capabilities, cutting-edge technologies, and user-friendly design, it continues to set the standard for excellence in laboratory instrumentation, facilitating groundbreaking research across various scientific fields.
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