Vibration and Monitoring Terms Glossary
... reflective tape); 2) for complex vibration vector addition or subtraction measurements. The sensor used in phase reference measurements with installed “protection” monitors is usually a proximity sensor system over a keyway. Unprotected machines, or those without a permanent phase reference probe, m ...
... reflective tape); 2) for complex vibration vector addition or subtraction measurements. The sensor used in phase reference measurements with installed “protection” monitors is usually a proximity sensor system over a keyway. Unprotected machines, or those without a permanent phase reference probe, m ...
Electronics For You | If It`s Electronics, It`s Here
... Abstract: The frequency of a voltage-controlled oscillator (VCO) varies with the voltage applied to its tuning port. Operating in a phase-locked loop (PLL), the VCO provides a stable local oscillator (LO) for frequency conversion in superheterodyne receivers. VCOs are also used in transmit chains, w ...
... Abstract: The frequency of a voltage-controlled oscillator (VCO) varies with the voltage applied to its tuning port. Operating in a phase-locked loop (PLL), the VCO provides a stable local oscillator (LO) for frequency conversion in superheterodyne receivers. VCOs are also used in transmit chains, w ...
Signal/One Troubleshooting Guide
... What you see here is a compilation of all the problems, modifications, and miscellaneous changes that I could find in all the revisions of the original Trouble Guide and the Signal/One Newsletters (also published by Bob Sullivan). While I believe the document to be complete, there may be items that ...
... What you see here is a compilation of all the problems, modifications, and miscellaneous changes that I could find in all the revisions of the original Trouble Guide and the Signal/One Newsletters (also published by Bob Sullivan). While I believe the document to be complete, there may be items that ...
Sine Wave Oscillator
... oscillator yields four sine waves 45° phase shifted relative to each other. This oscillator can be used to obtain sine/cosine or quadrature sine waves. Crystal or ceramic resonators make the most stable oscillators because resonators have an extremely high dφ/dω as a result of their nonlinear proper ...
... oscillator yields four sine waves 45° phase shifted relative to each other. This oscillator can be used to obtain sine/cosine or quadrature sine waves. Crystal or ceramic resonators make the most stable oscillators because resonators have an extremely high dφ/dω as a result of their nonlinear proper ...
1.5A switch step down switching regulator
... The L5970AD has two current limit protections, pulse by pulse and frequency fold back. The schematic of the current limitation circuitry for the pulse by pulse protection is shown in figure 7. The output power PDMOS transistor is split in two parallel PDMOS. The smallest one has a resistor in series ...
... The L5970AD has two current limit protections, pulse by pulse and frequency fold back. The schematic of the current limitation circuitry for the pulse by pulse protection is shown in figure 7. The output power PDMOS transistor is split in two parallel PDMOS. The smallest one has a resistor in series ...
Full Word texts
... Use ELM flexible cuffs to prevent transfer of vibrations onto the duct system. Electrical connection Externally fitted terminal box with cable guide bushes. Safety instructions The fan may be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordan ...
... Use ELM flexible cuffs to prevent transfer of vibrations onto the duct system. Electrical connection Externally fitted terminal box with cable guide bushes. Safety instructions The fan may be operated only if the protection against accidental contact with the impeller is guaranteed to be in accordan ...
Method for measurement of the sensitivity of crystal resonators to
... Fig. 2. Measurement setup with lock-in amplifier The principle of this method is based around a commonly used residual phase-noise measurement technique [5, 6]. The source is a frequency synthesizer, set at the crystal resonant frequency. This signal is split with a Macom JH-10-4 quadrature splitter ...
... Fig. 2. Measurement setup with lock-in amplifier The principle of this method is based around a commonly used residual phase-noise measurement technique [5, 6]. The source is a frequency synthesizer, set at the crystal resonant frequency. This signal is split with a Macom JH-10-4 quadrature splitter ...
Methods measure power electronics` efficiency
... of 4.4 nsec for a supply voltcontent of the shift register. To avoid circulating unde- Figure 1 This one-of-three pulse generator uses three ICs, yet age of 1.8V and a minimum clock period of 3.5 nsec for sired states and to enter a it avoids false logic states. a supply voltage of 2.5V. As proper s ...
... of 4.4 nsec for a supply voltcontent of the shift register. To avoid circulating unde- Figure 1 This one-of-three pulse generator uses three ICs, yet age of 1.8V and a minimum clock period of 3.5 nsec for sired states and to enter a it avoids false logic states. a supply voltage of 2.5V. As proper s ...
The sound of Distortion
... • The spectrum of that distortion, on the other hand, makes a great deal of difference in what an amplifier sounds like • Single-ended amplifiers tend to have much even-order harmonic distortion – this is the characteristic “single-ended sound” ...
... • The spectrum of that distortion, on the other hand, makes a great deal of difference in what an amplifier sounds like • Single-ended amplifiers tend to have much even-order harmonic distortion – this is the characteristic “single-ended sound” ...
Data Sheet
... Note6: TX_DIS is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7K – 10 K_ resistor. Its states are: Low: Transmitter on; High: Transmitter Disabled; Open: Transmitter Disabled. Note7: Module Absent, connected to VeeT or VeeR in the modu ...
... Note6: TX_DIS is an input that is used to shut down the transmitter optical output. It is pulled up within the module with a 4.7K – 10 K_ resistor. Its states are: Low: Transmitter on; High: Transmitter Disabled; Open: Transmitter Disabled. Note7: Module Absent, connected to VeeT or VeeR in the modu ...
THE HANDYMAN`S GUIDE TO OSCILLOSCOPES (Part 1 of 2)
... the 0v RX– on key- up. This switches the rig between transmit and receive (T-R Switch). It is a logic function, that is, a voltage to represent ON or OFF. Place the scope lead on pin 13 at 10v/div. and you should see the waveform like the top trace in Fig. 4 ... about +6v on key-up and 0v on key dow ...
... the 0v RX– on key- up. This switches the rig between transmit and receive (T-R Switch). It is a logic function, that is, a voltage to represent ON or OFF. Place the scope lead on pin 13 at 10v/div. and you should see the waveform like the top trace in Fig. 4 ... about +6v on key-up and 0v on key dow ...
INNOVATUM REFERENCE MANUALS Section 7 TONE
... lower right of the panel, to the “ON” position. The lower LCD should now show the approximate output current, in milliamperes. ...
... lower right of the panel, to the “ON” position. The lower LCD should now show the approximate output current, in milliamperes. ...
A novel square-root domain realization of first
... are limited. Beyond application to CMOS VLSI technology, this technique has been extended to design with saturated MOSFETs used in VLSI systems [8]. When a MOSFET operates in the saturation region, there is a quadratic relationship between the drain current and gate-source voltage. Hence, such circu ...
... are limited. Beyond application to CMOS VLSI technology, this technique has been extended to design with saturated MOSFETs used in VLSI systems [8]. When a MOSFET operates in the saturation region, there is a quadratic relationship between the drain current and gate-source voltage. Hence, such circu ...
GR3212241229
... Digital hearing aids convert the sound waves into digital domain signals and produce an exact duplication of sound. It allows for more complex processing like piecewise linear amplification, adaptive noise cancellation, frequency transportation, dynamic feedback cancellation, telecoil and integratio ...
... Digital hearing aids convert the sound waves into digital domain signals and produce an exact duplication of sound. It allows for more complex processing like piecewise linear amplification, adaptive noise cancellation, frequency transportation, dynamic feedback cancellation, telecoil and integratio ...
100V Input DC/DC Controller Generates Positive or Negative
... applications, capable of generating either positive or negative regulated output voltages. The LT3758 has two voltage feedback error amplifiers and reference voltages. One set is for positive output voltages, the other is for negative output voltages, both off a single feedback pin, making the LT375 ...
... applications, capable of generating either positive or negative regulated output voltages. The LT3758 has two voltage feedback error amplifiers and reference voltages. One set is for positive output voltages, the other is for negative output voltages, both off a single feedback pin, making the LT375 ...
Heterodyne
Heterodyning is a radio signal processing technique invented in 1901 by Canadian inventor-engineer Reginald Fessenden, in which new frequencies are created by combining or mixing two frequencies. Heterodyning is used to shift one frequency range into another, new one, and is also involved in the processes of modulation and demodulation. The two frequencies are combined in a nonlinear signal-processing device such as a vacuum tube, transistor, or diode, usually called a mixer. In the most common application, two signals at frequencies f1 and f2 are mixed, creating two new signals, one at the sum f1 + f2 of the two frequencies, and the other at the difference f1 − f2. These new frequencies are called heterodynes. Typically only one of the new frequencies is desired, and the other signal is filtered out of the output of the mixer. Heterodynes are related to the phenomenon of ""beats"" in acoustics.A major application of the heterodyne process is in the superheterodyne radio receiver circuit, which is used in virtually all modern radio receivers.