Automatic tuning

There is one major disadvantage to using an automatic reset barrel temperature controller the coefficients of the proportional, the reset, and the rate terms all have to be adjusted properly to obtain desired performance. It is not difficult to do this, but it can be time-consuming. One must follow the manufacturer s instructions. 

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K. J. Astrom and T. Automatic Tuning of PID Controllers, Instmment Society of America, Research Triangle Park, N.C., 1987. 

An automatic probe tuning and matching (ATM) accessory allows one to automatically tune the NMR probe to the desired nuclei s resonant frequency and match the resistance of the probe circuit to 50 Q [7]. Traditional NMR instruments are designed so that one must perform these adjustments manually prior to data acquisition on a new sample. The advent of the ATM accessory allows the sampling of many different NMR samples without the need for human intervention. The ATM in conjunction with a sample changer enables NMR experiments to be conducted under complete automation. The sample changers are designed so that once the samples are prepared, they are placed into the instrument s sample holders. Data are then acquired under software control of both the mechanical sample delivery system as well as the electronics of the spectrometer. 

Use a probe design which allows automatic tuning matching, via the use of motors mounted on the probe body. 

The introduction of gradient shimming (that makes this procedure very easy to automate) together with the possibility of performing automatic tuning and matching (via the use of motors mounted on the probe body) has further improved the whole procedure. 

Hie ions chosen for the optimization should be in the middle of the cahbration range or in a specific region of interest (e.g., m/z = 195 of caffeine or m/z = 906.7 of PPG calibration solution). Before using the automatic tuning procedure to demonstrate diat die transmission of ions into die MS is optimum, die ESI source sprayer should be manually adjusted to establish a stable spray of ions into die MS and to ensure diat enough ions are detected to calibrate die MS. 

Archer D. E., Morford J. L., and Emerson S. (2001) A model of suboxic sedimentary diagenesis suitable for automatic tuning and gridded global domains. Global Biogeochem. Cycles (in press). 

The LORAN C receiver automatically tunes first one then another and another of as many LORAN signals that can be received well enough to provide good data. After a short calculation delay the latitude and longitude is displayed. 

Long-range potentials ESPResSo has the P M, MMM2D, MMMID and ELC algorithms for the electrostatic interaction included. For all of these, methods, automatic tuning routines are available. In addition, the MEMO scheme (see 4.1) is implemented. 

Use for instance the Automatically Tuned Linear Algebra Software (ATLAS) software, http //math-atlas.sourceforge.net/. 

Automatic Tuning of Nonlinear Control Loops, by T. J. Pemberton, Instrum. Control Syst., 41(5), 123 (1968). 

Automatic tuning can be substituted for manual firequency variation. Instruments employing such frequency modulated signals have been in use for many years for measuring thickness by ultrasonic resonance. This resonance electric equipment usually does not provide a linear amplitude vs frequency readout and is therefore only suitable for the detection of resonance peaks in spectra. 

The most common way to perform method development is to infuse the analyte and allow software to optimize all tuning parameters that will give the best intensity and resolution. However, even though most vendors offer the ability to automatically tune many different compounds simultaneously, this process could take a long time, which is not ideal for drug discovery applications. An alternative is to use a low concentration, 250 tig/mL of analyte with a generic LC method and application of a full data dependent mass spectrometer scan (Toll et al., 2005 Saunders et al., 2009). First, a full Qi or Q3 scan verifies that the mass of the parent compound is detected, followed by dependent scans... 

The assistance-as-needed approach is often based on the use of adaptable control parameters, which have the potential advantage that the assistance can be automatically tuned to... 

Automatic tuning is another scheme (Schaumann, Ghausi, and Laker, 1990), but it adds circuit complexity. The best solution is to ehminate the need for tuning without the requirement for knowing op-amp GB. An approach that employs composite op-amps accomplishes this goal. 

Automatic tuning. This is a series of automatic tuning methods, such as Relay feedback tuning method. 

By automatic tuning (or auto -tuning), we mean a method which enable the controller to be tuned automatically on demand from an operator or an external signal. 

Automatic tuning needs identify the dynamics of a certain process. Usually Relay was mainly used as an amplifier in the fifties and the relay feedback was applied to adaptive control in the sixties. The exciting to a process loop make it reach the critical point. The critical point, i.e, the process frequency response of the phase lag of pi(it),has been employed to set the PID parameters for many years since the advent of the Ziegler-Nichols(Z-N) rule. From then several modified identification methods are... 

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