Audio Systems Guide for Houses of Worship
... compared to the wavelength of the sound. If the surface is small (compared to the wavelength) the sound will proceed as if the object were not there. High frequencies (short wavelengths) can be reflected or absorbed by small surfaces, but low frequencies (long wavelengths) can be reflected or absorb ...
... compared to the wavelength of the sound. If the surface is small (compared to the wavelength) the sound will proceed as if the object were not there. High frequencies (short wavelengths) can be reflected or absorbed by small surfaces, but low frequencies (long wavelengths) can be reflected or absorb ...
Classical Communication Systems
... which dominates at low frequencies and a term proportional to the frequency squared, which dominates at high frequencies. The frequency-independent noise term is due to the device leakage currents and the circuit; the frequency-squared term is primarily due to the input FET. In high-sensitivity desi ...
... which dominates at low frequencies and a term proportional to the frequency squared, which dominates at high frequencies. The frequency-independent noise term is due to the device leakage currents and the circuit; the frequency-squared term is primarily due to the input FET. In high-sensitivity desi ...
Three-Phase Power Meter Software Design Reference Manual Freescale Semiconductor, Inc.
... Power of active; reactive; apparent RMS of voltage and current Line frequency measurement (for precision zero-cross detection) ...
... Power of active; reactive; apparent RMS of voltage and current Line frequency measurement (for precision zero-cross detection) ...
Fluke Corporation Fluke 83V Industrial Multimeter Manual
... Users Manual Measuring AC or DC Current .................................................................................... ...
... Users Manual Measuring AC or DC Current .................................................................................... ...
NRS 2-50 NRS 2-51 - André Ramseyer AG
... The equipment is supplied with 24 V DC and fused with an external semi-delay fuse 0.5 A. Please use a safety power supply unit with safe electrical isolation. The power supply unit must be electrically isolated from dangerous contact voltages and must meet at least the requirements on double or rein ...
... The equipment is supplied with 24 V DC and fused with an external semi-delay fuse 0.5 A. Please use a safety power supply unit with safe electrical isolation. The power supply unit must be electrically isolated from dangerous contact voltages and must meet at least the requirements on double or rein ...
Guide to Low Voltage Circuit-Breakers Standards
... industry, appropriate standardisation could mean common supply networks and products; and in low-voltage circuit-breaker applications can result in: ...
... industry, appropriate standardisation could mean common supply networks and products; and in low-voltage circuit-breaker applications can result in: ...
d40 level switch
... The electrical housing and body of the D40 level switch are constructed from high impact UV resistant thermoplastic. The solid displacer supplied with the switch is made from glass reinforced Polypropylene. The displacer is suspended from the underside of the D40 with chemically resistant Polypropyl ...
... The electrical housing and body of the D40 level switch are constructed from high impact UV resistant thermoplastic. The solid displacer supplied with the switch is made from glass reinforced Polypropylene. The displacer is suspended from the underside of the D40 with chemically resistant Polypropyl ...
Correlated Double Sampling to reduce low f noise
... Figure 2 shows the frequency response of CDS on noise and signal based on Equation 3. It can be observed that the frequency response of CDS on noise is equivalent to a high-pass filter and does not have any effect on the signal. This reduces low-frequency noise such as 1/f noise. ...
... Figure 2 shows the frequency response of CDS on noise and signal based on Equation 3. It can be observed that the frequency response of CDS on noise is equivalent to a high-pass filter and does not have any effect on the signal. This reduces low-frequency noise such as 1/f noise. ...
62-0415 E-Mon Green Class Meter Manual
... The E-Mon D-Mon® Green Class kWh/Demand meter is a 3-element meter used to monitor electric power usage of individual loads after the utility meter. Installation must only be performed by qualified personnel and in accordance with these instructions and all applicable local and national electrical c ...
... The E-Mon D-Mon® Green Class kWh/Demand meter is a 3-element meter used to monitor electric power usage of individual loads after the utility meter. Installation must only be performed by qualified personnel and in accordance with these instructions and all applicable local and national electrical c ...
Assessing an EM environment
... Please note that simply applying the immunity standards listed in the right-hand column may not be adequate where EMC-related functional safety is an issue, or where high reliability systems are required, e.g. for telecommunications central offices, legal metrology, etc. IEC 61000-1-2 is the most re ...
... Please note that simply applying the immunity standards listed in the right-hand column may not be adequate where EMC-related functional safety is an issue, or where high reliability systems are required, e.g. for telecommunications central offices, legal metrology, etc. IEC 61000-1-2 is the most re ...
Totem Kin Subwoofer User Manual - ATEM Hi-Fi
... Retain the sturdy carton and all packing material; if needed, it will prove invaluable for damage-free transport or storage. The Totem limited warranty applies to products in normal home use only. The warranty is void if serial numbers have been altered or removed. The warranty is void if products s ...
... Retain the sturdy carton and all packing material; if needed, it will prove invaluable for damage-free transport or storage. The Totem limited warranty applies to products in normal home use only. The warranty is void if serial numbers have been altered or removed. The warranty is void if products s ...
the inequality of circuit breaker standards - CBI
... Standardization", originated in the early 1960's, and is the European counterpart of the IEC. As voluntary associations of the IEC, CENELEC members are encouraged, wherever possible, to aim towards harmonizing their standards with those of the IEC. The very fact however, that CENELEC standards, and ...
... Standardization", originated in the early 1960's, and is the European counterpart of the IEC. As voluntary associations of the IEC, CENELEC members are encouraged, wherever possible, to aim towards harmonizing their standards with those of the IEC. The very fact however, that CENELEC standards, and ...
A Three-Axis Micromachined Accelerometer With A CMOS Position
... high-impedance paths to ground can increase noise and result in poor control of the dc value at this node. Switched-capacitor topologies use switches to provide a low-impedance path to ground during a zero phase, while releasing the input node from ground during sense-capacitor measurement [6], [7]. ...
... high-impedance paths to ground can increase noise and result in poor control of the dc value at this node. Switched-capacitor topologies use switches to provide a low-impedance path to ground during a zero phase, while releasing the input node from ground during sense-capacitor measurement [6], [7]. ...
Tail Current-Shaping to Improve Phase Noise in LC Voltage
... at the second harmonic and they often consume large areas. AM-to-FM noise conversion by the varactors [1], [5] can make the oscillator very sensitive to circuit noise. This conversion can be lowered by reducing the VCO’s tuning gain through the use of discrete tuning, e.g., with a switched capacitor ...
... at the second harmonic and they often consume large areas. AM-to-FM noise conversion by the varactors [1], [5] can make the oscillator very sensitive to circuit noise. This conversion can be lowered by reducing the VCO’s tuning gain through the use of discrete tuning, e.g., with a switched capacitor ...
62-0388 Class 1000 Meter Installation Manual
... To ensure a safe installation, the Class 1000 meter requires an external switch mechanism, such as a circuit breaker, be installed on the Class 1000 MAINS input wiring. The switch mechanism must be installed in close proximity to the meter and easily reachable for the operator. This device must also ...
... To ensure a safe installation, the Class 1000 meter requires an external switch mechanism, such as a circuit breaker, be installed on the Class 1000 MAINS input wiring. The switch mechanism must be installed in close proximity to the meter and easily reachable for the operator. This device must also ...
Noise - Renesas E
... Which statements about reducing EMI in embedded systems are correct? Select all that apply and then click Done. Choose a microcontroller with on-chip memory to prevent unwanted emissions caused by driving an external bus line. To reduce emissions caused by signal reflections, insert a serial matchin ...
... Which statements about reducing EMI in embedded systems are correct? Select all that apply and then click Done. Choose a microcontroller with on-chip memory to prevent unwanted emissions caused by driving an external bus line. To reduce emissions caused by signal reflections, insert a serial matchin ...
Analysis of high frequency harmonics injected by wind turbines in a
... not intended for direct connection of power plants. This obviously causes some problems for distribution companies. Their grids may no longer be efficient for handling the power levels and keeping a good power quality in their grid. This problem varies from one location to another and a few case stu ...
... not intended for direct connection of power plants. This obviously causes some problems for distribution companies. Their grids may no longer be efficient for handling the power levels and keeping a good power quality in their grid. This problem varies from one location to another and a few case stu ...
5. Circuit breakers protecting final-distribution
... the contact-closing speed totally independent of the action of the operator. The protection system must be capable of heavy-duty operation and to that end, the manufacturer shall guarantee the following performance levels, defined by IEC / EN 60947-2: - suitability for isolation (section 7.1.6.1): - ...
... the contact-closing speed totally independent of the action of the operator. The protection system must be capable of heavy-duty operation and to that end, the manufacturer shall guarantee the following performance levels, defined by IEC / EN 60947-2: - suitability for isolation (section 7.1.6.1): - ...
The Low Frequency Array active antenna system
... in this graph. Most of the transmitted signals have a narrow band spectrum as opposed to the noise signals. Exceptions are those transmitters who use a spread spectrum modulation technique, which results in a noise like signal. Due to different propagation mechanisms basically two different regimes ...
... in this graph. Most of the transmitted signals have a narrow band spectrum as opposed to the noise signals. Exceptions are those transmitters who use a spread spectrum modulation technique, which results in a noise like signal. Due to different propagation mechanisms basically two different regimes ...
Elimination of impulse noise interference from communications
... Semiconductor diodes have a breakpoint, or threshold, voltage below which the forward current ...
... Semiconductor diodes have a breakpoint, or threshold, voltage below which the forward current ...
Application Note 1091
... System noise figure is set by the low noise block downconverter (LNB) that is placed at the feed of the parabolic reflector (dish). The LNB consists of a low noise amplifier (LNA) followed by a converter that converts the Ku-band signals down to L-band for further signal processing. The LNA sets the ...
... System noise figure is set by the low noise block downconverter (LNB) that is placed at the feed of the parabolic reflector (dish). The LNB consists of a low noise amplifier (LNA) followed by a converter that converts the Ku-band signals down to L-band for further signal processing. The LNA sets the ...
Sound level meter
A sound level meter or sound meter is an instrument that measures sound pressure level, commonly used in noise pollution studies for the quantification of different kinds of noise, especially for industrial, environmental and aircraft noise. However, the reading from a sound level meter does not correlate well to human-perceived loudness, which is better measured by a loudness meter. The current international standard that specifies sound level meter functionality and performance is the IEC 61672-1:2013.