• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Characterization of Acoustic Transients: Calibration and
Characterization of Acoustic Transients: Calibration and

... calibration of acoustic transients. RETSPLs of transients recommended by ISO 389-6 are based on p-p peSPL. A review of the literature reveals that calibration of transients does include the use of p-p peSPL, but also uses baseline-to-peak peSPL (b-p peSPL) as well as peak SPL (pSPL). The relationshi ...
Bi-directional level shifter for I²C-bus and other systems.
Bi-directional level shifter for I²C-bus and other systems.

... voltage and corresponding logic I/O levels. These 5 Volt devices can be interconnected to an I C-bus system without any glue logic. Present technology processes for integrated circuits with clearances of 0.5 µm and less, limit the maximum supply voltage to 3.3 Volt and in the near future to 2 Volt a ...
Model 72-1020 OPERATING MANUAL
Model 72-1020 OPERATING MANUAL

... carefully before using the Meter. Bench Type Digital Multimeter 72-1020 (features autorange operation, True RMS measurement, and 40,000 ...
AN3105
AN3105

... For these reasons a street lighting power supply designed to power an LED lamp must have high efficiency and at least a similar lifetime, in order to guarantee the maintenance free operation required by these kinds of applications. This application note describes the characteristics and features of ...
Guide for Electric Service and Meter Installations
Guide for Electric Service and Meter Installations

... accordance with such rules and regulations, is adequate for the customer’s present or future electric service. The requirements set forth herein are not necessarily complete facility or safety specifications. Rather they cover matters of mutual concern to the Customer and the Company, which facilita ...
generic specification for high performance
generic specification for high performance

... Meter shall offer an option to be equipped with four (4) form C pulse output channels that can be configured for operation as KYZ pulse outputs or End of Interval pulse outputs. No external module shall be required to provide the minimum of four pulse output channels. ...
data sheet
data sheet

... dealer in the country of purchase. Phaedrus Audio warrants that the equipment it manufactures shall be free from defects in material and workmanship for a period of one year from the original date of purchase; unless a longer minimum warranty period is mandated by applicable local laws. If equipment ...
SiT1533 - SiTime
SiT1533 - SiTime

... max over temperature. When measuring the SiT1533 output frequency with a frequency counter, it is important to make sure the counter's gate time is >100ms. The slow frequency of a 32 kHz clock will give false readings with faster gate times. For applications that require a wider supply voltage range ...
radiac set an/pdr-56f (nsn 6665-01-113-9530)
radiac set an/pdr-56f (nsn 6665-01-113-9530)

... d. Discriminator. This block represents two transistors connected to discriminate between low level random noise and actual signals. The discriminator allows signals to pass to the next block, but eliminates the noise signal. The output signal from this block is a constant amplitude pulse which coin ...
72-7732A 72-7730A
72-7732A 72-7730A

... l Inspect the test leads for damaged insulation or exposed metal. Check the test leads for continuity. Replace damaged test leads with identical model number or electrical specifications before using the Meter. l Do not apply more than the rated voltage, as marked on the Meter, between the terminals ...
Voltage Verification Form
Voltage Verification Form

... Instructions for Submitting Voltage Verification for the Generation Meter Socket 1. Please refer to Utility Standards for Net Metering on the “Contractors Corner” at nvenergy.com/renewablegenerations. 2. Choose the correct form for your installation from the list below. These voltage readings will ...
pm700 installation manual
pm700 installation manual

... CAUTION CAUTION, used without the safety alert symbol, indicates a potentially hazardous situation which, if not avoided, can result in property damage. ...
Design of MOS Current-Mode Logic Standard Cells Technology
Design of MOS Current-Mode Logic Standard Cells Technology

... can be obtained from 3 basic ones. We will give special names to this circuits: level 1, level 2 and level 3. The MCML inverter explained previously is level 1, because it has only one differential pair of transistors (figure 2.8 ). Level 2 has two levels of differential pairs, a first level with on ...
Single-Phase Power/Energy Meter with Tamper
Single-Phase Power/Energy Meter with Tamper

... environment. It differs from ordinary single-phase meters in that it uses two current transducers to measure active power in both live and neutral wires. This enables the meter to detect, signal, and continue to measure reliably even when subject to external attempts of tampering. The heart of the m ...
INTERNATIONAL STANDARD IEC 61140
INTERNATIONAL STANDARD IEC 61140

... 3) The documents produced have the form of recommendations for international use and are published in the form of standards, technical specifications, technical reports or guides and they are accepted by the National Committees in that sense. 4) In order to promote international unification, IEC Nat ...
PDF
PDF

... high power applications [5]. Compared to other switching device, across each device, cost of topologies of multilevel inverters the proposed because of higher devices will somewhat less. topology gives advantages like: reduced number of voltage rating switches, optimization layout is possible becaus ...
sMM0204 - Vishay
sMM0204 - Vishay

... EN 60115-1, generic specification EN 60115-8 (successor of EN 140400), sectional specification EN 140401-803, detail specification IEC 60068-2-xx, test methods The parameters stated in the Test Procedures and Requirements table are based on the required tests and permitted limits of EN 140401-803. T ...
Vitalizer Mk2-T
Vitalizer Mk2-T

... filter and gives the mid frequencies even more accurate transparency with a soft, unobtrusive sound. The second tube is used within the Stereo Expander.The stereo image not only gains more width but also more depth, transparency and clarity because of the pleasant tube harmonics. Great emphasis has ...
AN-1332 APPLICATION NOTE
AN-1332 APPLICATION NOTE

... It is not recommended to invert the second and third layers, that is, setting the GND_MCU plane on the second layer and the GNDISO plates on the third layer, because the GND_MCU plane creates a parasitic capacitance with the shunt related PCB traces on the top layer. This parasitic capacitance creat ...
 
 

... (RJ45) & USB Port. Manufacturer shall share the communication  protocols to utility.  (i)It shall be responsibility of the meter manufacturer to provide  the required software and all the facilities and support required  by the purchaser, to use the CMRI for reading and retrieving the  data from the ...
Loudness, Its Definition, Measurement and
Loudness, Its Definition, Measurement and

... ear receiving it, and the physiological and psychologicalconditionsof the listener. In most engineeringproblemswe are interested mainly in describe the magnitude of an auditory senthe effect upon a typical observer who is in a sation. Although we use the terms "very loud," typical condition for list ...
MiniCloset-5c - Chipkin Automation Systems
MiniCloset-5c - Chipkin Automation Systems

... Power Line Communications, or PLC, is a method of transferring meter data via the existing electric power wires that serve each tenant in a building or customer on a utility grid. Quadlogic employs a patented method of PLC to move large amounts of metered data for residential and commercial and indu ...
The Improved Parking Meter - Preston M. Green Electrical
The Improved Parking Meter - Preston M. Green Electrical

... The idea of the Ultrasonic Sensometer began when one of our members was walking by a parking meter on the South 40 and noticed that a car was overdue but not ticketed. Even though a parking meter attendant was in the vicinity, he did not seem to notice the illegally parked car. Since visitors often ...
TECHNICAL SPECIFICATIONS FOR 0.2s ACCURACY CLASS AC
TECHNICAL SPECIFICATIONS FOR 0.2s ACCURACY CLASS AC

... measurement. Further, it shall be possible to switch over the same test output device to reactive energy via suitable means provided on the metering system. This LED shall be visible from the front side. 5.23 The metering system shall normally operate with the power drawn through the auxiliary AC or ...
RP-35U Line Powered Digital Panel Meter 3 1/2 Digit 0.56” LED
RP-35U Line Powered Digital Panel Meter 3 1/2 Digit 0.56” LED

... A General Purpose Utility Meter to Fit Most Cutouts, Including DIN/NEMA Standard. Compatibility ...
< 1 2 3 4 5 6 7 8 9 10 ... 36 >

Peak programme meter



A peak programme meter (PPM) is an instrument used in professional audio for indicating the level of an audio signal.There are many different kinds of PPM. They fall into broad categories:True peak programme meter. This shows the peak level of the waveform no matter how brief its duration.Quasi peak programme meter (QPPM). This only shows the true level of the peak if it exceeds a certain duration, typically a few milliseconds. On peaks of shorter duration, it will indicate less than the true peak level. The extent of the shortfall is determined by the 'integration time'.Sample peak programme meter (SPPM). This is a PPM for digital audio which shows only peak sample values, not the true waveform peaks (which may fall between samples and be up to 3 dB higher in amplitude). It may have either a 'true' or a 'quasi' integration characteristic.Over-sampling peak programme meter. This is a sample PPM in which the signal has first been over-sampled, typically by a factor of four, to alleviate the problem with a basic sample PPM.In professional usage, where consistent level measurements are needed across an industry, audio level meters often comply with a detailed formal standard. This ensures that all meters that comply with the standard will give the same indication on a given audio signal. The principal standard for PPMs is IEC 60268-10. It describes two different quasi-PPM designs which have their roots in meters originally developed in the 1930s for the AM radio broadcasting networks of Germany (Type I) and the United Kingdom (Type II).The term Peak Programme Meter usually refers to these IEC-specified types and similar designs.PPMs were originally designed for monitoring analogue audio signals but are now also used with digital audio.PPMs do not provide effective loudness monitoring. Newer types of meter do, and there is now a push within the broadcasting industry to move away from traditional level meters such as those featured in this article to two new types: loudness meters based on EBU Tech. 3341 and oversampling true PPMs. The former would be used to standardise broadcast loudness to −23 LUFS and the latter to prevent digital clipping.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report