Topic Catalog

Topics beginning with "S"
SA Frequency-selective, peak-responding voltmeters, which are calibrated to display the rms value of a sine wave.
Safety Jacks Socket whose insulating jacket meets safety standards.
Safety Test Check to determine whether a device is free from hazards.
Samplers process specimens.
Sampling Oscilloscopes Sample signals prior to any amplification or attenuation.
SAN Storage Area Network
Sand are grains smaller than gravel bigger than silt ranging in size from .08 to .006 inches.
SAR watts per kilogram of absorbed electromagnetic radiation.
SAS Capable of addressing 16,256 devices with a data tranfer rate of up to 3Gbps.
SATA A computer bus transferring data (typically from a disk drive) at 1.5 or 3.0 Gbit/s.
Satellite any smaller object traveling around a larger object.
Satellite Dish Receive satellite TV signals.
Satellite Emulators Test satellite modem performance and to ground link. Satellite Simulators
Satellite Finders Measure satellite signal levels to focus sighting angle.
Satellite Signal Level Meters Detect, measure, and monitor satellite signal.
Satellite Simulation provide the functionality to test satcom.
Satellite Simulators provide the functionality to test satcom.
Sat Locators Measure satellite signal levels to focus sighting angle.
SBC Whole computer on one PCB.
SCADA Supervisory Control And Data Acquisition
Scalability The ability to handle or expand to handle ever greater loads.
Scalar Network Analyzers Measure the amplitude properties of electrical networks.
Scan Converters Transform scan rates of a signal to another format.
Scanners sensory reveal metrical structure.
Scanning Electron Microscopes surface imaging from 1 to 5 nm in size.
Scanning Electron Microscopy surface imaging from 1 to 5 nm in size.
Scanning Probe Microscopes Used to study the properties of surfaces at the atomic level. (www.eng.yale.edu)
Scintillation Detectors absorb ionizing radiation and convert a small part of their energy into light for photodetection.
Scopes view and examine the heavens to measuring voltage and current or a UUT's physical characteristics.
SCPI A standard interface language between computers and test intruments.
SCR Thyristor, Silicon Controlled Rectifier
Screw
Screwdrivers Combine screwdriver, voltage detector and/or continuity tester into one.
Screw Drivers Combine screwdriver, voltage detector and/or continuity tester into one.
Scripting are a sequence of executable instructions.
Scripts are a sequence of executable instructions.
SCSI "Small Computer System Interface" defines a communication standard for connecting peripheral devices and thier controllers to a microprocessor.
SCSI Test
SCTP Stream Control Transmission Protocol
SCXI proprietary mulitfunction bus and signal conditioning standard developed by NI.
SD Card A non-volatile memory card format.
SDH Synchronous Digital Hierarchy carries bit rates of 2/34/140 Mbps over fiber.
SDI A family of digital video interfaces standardized by SMPTE.
SDRAM Test Synchronous Dynamic Access Memory.
SDTV Digital broadcast with a resolution close to analog TV.
Sea < than an ocean.
Search to find by exploration.
SECAM "Sequentiel Couleur avec Mémoire" television system standard first developed by the French.
Secondary Injection Test Low voltage signal injected to test circuit breaker operation.
Secondary Service service line voltage < 600 volts.
Security to make safe.
Seismic earthquaking event with a wave velocity 3-8 km/s.
Seismic Accelerometers sense ground vibration.
Seismographs measure ground movements.
Seismometers measure ground movements.
SEM surface imaging from 1 to 5 nm in size.
Semi active or passive elements connected as an electronic circuit using a crystalline subtance, eg. silicon or germanium.
Semicon active or passive elements connected as an electronic circuit using a crystalline subtance, eg. silicon or germanium.
Semiconductor active or passive elements connected as an electronic circuit using a crystalline subtance, eg. silicon or germanium.
Semi-conductor active or passive elements connected as an electronic circuit using a crystalline subtance, eg. silicon or germanium.
Semiconductor Test prevails upon the DUT to demonstrate It's fulfillment of test requirements.
Sensors detect a physical event then translate to a representative analog signal.
Sensor Testers
Serial a bus that can be used with almost any device transmitting a single stream of data.
Serial Analyzers monitor and analyze serial buses.
Serial ATA A computer bus transferring data (typically from a disk drive) at 1.5 or 3.0 Gbit/s.
Serial Attached SCSI Capable of addressing 16,256 devices with a data tranfer rate of up to 3Gbps.
Serial Digital Interfaces A family of digital video interfaces standardized by SMPTE.
Serial Interfaces one conductor one bit at a time data transfer.
Serial I/O Sequential input and output of data.
Serial Protocol Analyzer
Servers Computer devices that process and satisfy requests for network services.
Server Test
Services Professional assistance to test opportunities.
Servo feedback seving to control.
Servomotor feedback seving to control.
Servo Test
Set-top Box Convert broadcast signal to TV content.
Shaft a pole, rod or beam of directed energy.
Shakers create vibrations of various frequencies and intensities.
SHDSL Single-pair high-speed digital subscriber line
SHF Super High Frequency from 3 GHz to 30 GHz.
Shielded Box a space surrounded by an electromagnetic radiation barrier
Shielded Enclosures A space surrounded by an electromagnetic radiation barrier
Shielding Protects against or confines electromagnetic or ionizing radiation.
Shock A shock test transmits kinetic or thermal energy into a UUT in a relatively short interval in a controlled enviroment.
Shoe ground a person to prevent ESD damage. 2) check footwear for electrical shock resistance.
Shooter fire's gun.
Shooter Detection acoustic localization of gunfire
Shooter Localization acoustic localization of gunfire
Short Finders A short locator is used to identify unintentional connections in electric circuits.
Short Locators A short locator is used to identify unintentional connections in electric circuits.
Short Testers Detect unintended circuit connectivity and insulation defects.
Shunts An Instrument Shunt is a resistor connected in parallel with a measuring device to move the current range beyond a particular value for which the instrument is capable of measuring directly.
SIGINT SIGnal INTelligence
Signal detectable impulse of electromagnetic radiation or quantum state superposed.
Signal Analyzers demodulate and analyze signals.
Signal Conditioners Circuitry that offsets, attenuates, amplifies, linearizes, and/or filters the signal to a A/D converter.
Signal Conditioning The processing of signals to reduce noise level, amplify, attenuate, or otherwise condition.
Signal Conditioning eXtensions for Instrumentation proprietary mulitfunction bus and signal conditioning standard developed by NI.
Signal Conditioning Systems
Signal Generators Generate repeating analog or digital electronic signals.
Signaling The use of signals for controlling communications. (atis.org)
Signal Level Meters detect, measure, and monitor power or the intensity of a signal.
Signal Meters Detect, measure, and monitor impulses of electromagnetic radiation.
Signal Sources Instrument that provides a stimulus signal (waveform). (www.tek.com)
SIGTRAN Signaling Transport Protocol Stack
Simulation the approximation of actual operational conditions.
Simulation Software computer programs that emulate the function of a system, predict expected performance, evaluate the impact, and assess design alternatives.
Simulators create what could be.
SINAD measure of spectral quality for a received audio signal. Signal+Noise+Distortion divided by Noise+Distortion
Single Board Computers Whole computer on one PCB.
Singlemode Fiber Support's one mode of light propagation with a 3-10µm core used for long distance and high speed laser sources.
Single Phase A single alternating voltage.
SIP Session Initiation Protocol, Standard Interchange Protocol
Sleeve insulated wrist to shoulder HV protection.
SLM detect, measure, and monitor power or the intensity of a signal.
SLT A check of a groups interdependency, interrelations and interaction as a whole.
Small Arms Fire acoustic localization of gunfire
Smart Card embedded circuits on a card that store and process data.
SMPS Load Current is oscillated on and off regulating ouput voltage.
SMPTE Society of Motion Picture and Television Engineers.
SMT "Surface Mount Technology" printed circuit board testing.
SNA Measure the amplitude properties of electrical networks.
Sniffer Decodes each packet of a data stream to check adherence to spec.
SNMP Simple Network Management Protocol
SNMP Test The simple network management protocol
SO2 Sulfer Dioxide
SoC A complete computer "System on a Chip".
Socket Testers test access viability to electricity, gas or data.
SOFC solid oxide fuel cell.
Softness describes how yielding a material is to pressure, touch for example.
Software a set of instructions to run hardware and or process data.
SOIC Small Outline Integrated Circuit
Soil Resistivity Affects the depth to set a grounding rod.
Solar energy of the sun's rays.
Solar Cell Convert light to electricity.
Solar Energy power from the sun.
Solar Simulation replicate the sun's light.
Solar Simulators replicate the sun's light.
Solder Joint
Solder Paste
Solenoid Act as a magnet when current flows through moving an iron core.
Solid Oxide Fuel Cell solid oxide fuel cell.
Sonar SOund Navigation And Ranging
SONET Synchronous Optical NETwork is a standard for digital communication over optical fiber.
Sorters A physical piece of equipment or a software program with the sole purpose to segregate items into groups according to a specified criterion. (www.cogsci.princeton)
Sound tympanum, bioacoustic sensed pressure waves.
Sound Calibration assure sound measurement accuracy.
Sound Chambers Shielded rooms designed to attenuate sound.
Sound Dosimeter Measure exposure to noise.
Sound Intensity magnitude and direction of sound waves.
Sound Level Meters
Sound Pressure Level measurement of a sound wave's pressure relative to a reference value.
Sound Sources Standard for calibrating sound level meters and sound measuring systems.
Sound Test Checks power, intensity or the quality of sound.
Sources The origin.
Space the universe and beyond.
Spacecraft vehicle coursing about the universe.
Spacewire Spacecraft communication network.
SPAD Single Photon Avalanche Diode
S-Parameters Scattering Parameters quantifies high frequency RF power waves propagation through a network.
Spark Plug
SPC Monitoring, controlling and, ideally, improving a process through statistical analysis.
Speaker convert's an electrical signal to sound.
Specific Absorbtion Rate watts per kilogram of absorbed electromagnetic radiation.
Specimen that to be examined.
Spectrograph Measure the wavelengths and intensity of light.
Spectrometers Measure the wavelengths and intensity of light.
Spectrophotometers measure spectral; emittance, transmittance or reflectance.
Spectroradiometers measure spectral power distribution of radiant exitance.
Spectroscopy The use of the absorption, emission, or scattering of electromagnetic radiation by atoms or molecules (or atomic or molecular ions) to qualitatively or quantitatively study the atoms or molecules, or to study physical processes. Virginia Tech
Spectrum Analyzers analyze the spectra of signal versus frequency.
SPICE Simulation Program with Integrated Circuit Emphasis.
SPL measurement of a sound wave's pressure relative to a reference value.
Splitters
SPM Used to study the properties of surfaces at the atomic level. (www.eng.yale.edu)
Sport
Spot Photometers measure light emanating from a given direction and surface area.
Spring Probes Spring loaded electrical conductor contacting elements.
SPST Single Pole Single Throw relay.
Spy peer while cloaked.
SQUID Superconducting QUantum Interference Devices
SRAM Static Random Access Memory
SS7 Common Channel Signaling System No. 7 or Signalling System 7 a widely used ITU signalling protocol standard for PSTN telephone calls.
SSB Single-sideband modulation.
SSG Electronically creates the signal.
Stability the degree of being anchored.
Standard Resistors Resistor having a known resistance value.
Standards A controlled reference or acknowledged technical criterion.
Standing Wave Ratio Standing wave ratio.
Standing Wave Ratio Meters Measure standing wave ratios in transmission lines.
Starter Testers
Static Locators Measure static electricity charges.
Statistical Process Control Monitoring, controlling and, ideally, improving a process through statistical analysis.
Stepper Motors A device that translates electrical pulses into precise mechanical movement. The output shaft may deliver rotary or linear motion. (www.seanet.com)
Steppers A device that translates electrical pulses into precise mechanical movement. The output shaft may deliver rotary or linear motion. (www.seanet.com)
Stepping Motor A device that translates electrical pulses into precise mechanical movement. The output shaft may deliver rotary or linear motion. (www.seanet.com)
Storage Area Network Storage Area Network
STP Shielded Twisted Pair
Straightness how free of bends or curves.
Strain a strenuous force that pulls.
Streak Cameras measure intensity variations in multiple optical events over time, ultra fast.
Stream A complete flow through.
Streetlight "help stem the "insect apocalypse" ... Scientists test differently colored lights"" https://www.science.org/content/article/can-scientists-help-insects-survive-their-fatal-attraction-light-night
Stress
Strobe Light Timed short bursts of light illuminating vibration and rotation frequency.
Stroboscopes Timed short bursts of light illuminating vibration and rotation frequency.
Structural
Styli a touch probe for CMMs and machine tools.
Substation transform and distribute electrical power.
Sulfur Dioxide Sulfer Dioxide
Sun Simulators replicate the sun's light.
Supercap are high energy density electrochemical capacitors for delivery of short high-current pulses.
Supercapacitor are high energy density electrochemical capacitors for delivery of short high-current pulses.
Super High Frequency Super High Frequency from 3 GHz to 30 GHz.
Surge a voltage spike.
Surge Arrester limit surge voltages.
Surge Arrestor limit surge voltages.
Surge Generators Equipment capable of simulating the types of surges (such as lightening) that impinge upon equipment in the real world. (www.powerquality.com)
Surge Testers Analyze device performance under a sudden increase of electrical power.
Surveillance The continual monitoring of a process; a type of periodic assessment or audit conducted to determine whether a process continues to perform to a predetermined standard. (www.asq.org)
S-Video "Separate" Video is a physical video interface that carries the luminance and chrominance information separately. (boulder.noaa.gov)
Sweep Function Generators Produce waveforms.
Sweep Generators Produce continuously varying frequencies of a voltage over a band of frequencies.
Sweep Marker Generators
Switched Mode Power Supplies Load Current is oscillated on and off regulating ouput voltage.
Switching Controls consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit. (www.cogsci.princeton.edu)
Switching Power Supplies Load Current is oscillated on and off regulating ouput voltage.
Switching Systems
Switchmode Power Supplies Load Current is oscillated on and off regulating ouput voltage.
Switch Mode Power Supplies Load Current is oscillated on and off regulating ouput voltage.
Switch Test Make, break, or change the connection of a circuit.
SWR Standing wave ratio.
SWR Analyzers
SWR Meters measure standing wave ratios in transmission lines.
Synchronization Modules
Synchronizers
Synchro / Resolver Converters converts Synchro and Resolver analog shaft angle signal to a digital signal.
Synchro/Resolvers Compute trigonometric values over 360 degrees of rotation by varying the magnetic couplings between its primary (rotor) and secondary (stators) windings.
Synchros Three wire rotary variable transformer like devices used to measure the angle of rotation over 360 degrees by varying the magnetic couplings between its primary (rotor) and secondary (stators) windings.
Synthesized Signal Generators Electronically creates the signal.
Synthesizers A system for generating any of a range of frequencies from a single fixed timebase or oscillator. (http://encyclopedia.thefreedictionary.com)
Synthetic Instruments Generic hardware whose function specificity is completely defined by software.
System Level Test assures application unit operation.
System-on Chip A complete computer "System on a Chip".
System Test Testing conducted on a complete, integrated system to evaluate the system's compliance with its specified requirements .