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Reset frequency

The reset time, which is nser-adjnstable, can range from 0.05 seconds to 80 minutes or more, depending on controller design. The reset time constant, when converted to frequency 1/2(Tr) Hz (where Tr is the reset time in seconds), determines the frequency where the reset and proportional response characteristics of the controller merge (see Fig. 8-64Z ). Tuning the reset adjustment on the controller moves the reset frequency to the left or right along the frequency axis and thereby affec ts the reset ac tion of the controller. [Pg.777]

Here we review some of the terminology used in the swaps market and explain how swaps are quoted. The date that the counterparties commit to the swap is called the trade date. The date that the swap begins accruing interest is called the effective date, while the date that the swap stops accruing interest is called the maturity date. How often the floating rate is changed is called the reset frequency. [Pg.606]

When the bias is at the recommended operating voltage, then the reset frequency should be firmly established at or near the TBR shown on the specification sheet and the dynamic range of the reset procedure should be (in this case) stiU about 4 V. [Pg.228]

The speed of the controller is adjusted by the proportional band and reset rate (proportional and integral gains). These parameters also influence the stability of the control loop. All control loops are limited to a gain of less than one at their critical frequency. Higher closed-loop gain will make the loop unstable. [Pg.394]

J9. A process has a transfer function = 1/Wr,s + 1)]- It is controlled by a PI controller with reset time t,. Sketch the G B plot of phase angle versus frequency, the Nyquist plot of and a toot locus plot for the case where (< )... [Pg.498]

The sample is loaded onto the instrument and the time reference is noted by starting a timer or resetting a timer in the software. A dynamic test for viscoelastic structure is then used to monitor changes in the sample that could result from mechanical relaxation, drying, or thixotropy. A time sweep test is usually performed at a constant temperature. The test is also run at a constant frequency that is comparable to real-time observation (typically 1 Hz) or at a constant angular frequency (10 rad/sec or 1.6 Hz). [Pg.1197]

For high frequency resolution filter bank based coders the transmission of prediction coefficients would take a huge amount of additional side information. Therefore, a short (two tap) backward adaptive predictor is used. An attenuation factor is applied to the predictor to lower the long term impact of a connection loss. Prediction is switched on and off to ensure it is only used in blocks with an actual prediction gain. Additionally, the predictors are reset in certain intervals. In this way, small differences in the arithmetic accuracy between encoder and decoder do not lead to audible errors and can be tolerated. [Pg.337]

The first block DIV is a frequency divider. This block has 2 modes of operation, the normal mode and the test mode. In the test mode, the UART chip runs 16 times faster than in the normal mode. Also, the transmission data rate of the UART chip is 16 times faster than the receiving rate. Each block is initialized by setting the reset line low by applying a 0 to port MR. The TX block accepts 8-bit parallel data from the microprocessor interface (MP) block and transmits it serially to the RS-232 port through port DOUT. Conversely, the RX block receives serial data input, and sends it in 8-bit parallel format to the MP block. Again, the transmitter runs at 16 times the speed of the receiver. The microprocessor interface (MP) block asynchronously controls the parallel data flow between the RX / TX blocks and the microprocessor data bus. [Pg.147]

Compounds of transition metal complexes possessing a nonbonding electron pair with boranes (BX3) can be regarded classically as boron complexes with a transition metal ligand. In a broader sense, however, boranes can be classified as acceptor ligands.Thus, coordination of a borane resets in a decrease of the electron density on the metal atom. In the case of carbonyl complexes this effect is reflected in the increase, by 20-100 cm S of the CO stretching frequency. It follows from the foregoing that stable coordination of boranes is... [Pg.1939]


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See also in sourсe #XX -- [ Pg.606 ]




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