directional noise measurement

noise n acoustic noise actual noise level measurement actual sideline noise level aerodynamic noise aggregate noise duration aircraft noise abatement operating procedures aircraft noise annoyance aircraft noise certificate aircraft noise pollution aircraft noise prediction program airport noise contour ambient noise ambient noise level approach noise angle approach noise level approach noise measurement approach noise path approach noise reference point atmospheric noise attenuate noise augmented lift system noise certificated noise level Committee on Aircraft Noise community noise level composite noise rating continuous perceived noise level contour of perceived noise corrugated noise suppressor current noise technology standard design noise level dipole-type noise field directional noise measurement duration of noise effect environment control system noise equal noise contour exhaust noise suppressor flight test noise measurement flyover noise flyover noise level flyover noise limit flyover noise measurement flyover noise test generalized noise characteristics ground run-up noise abatement ignition noise jet noise jet noise prediction technique landing noise lateral noise measurement distance level flight noise requirements main rotor noise maximum permissible noise level measured noise data minimum noise procedure minimum noise route noise abatement device noise abatement measures noise abatement procedures noise abatement takeoff noise abatement technique noise abatement thrust cutback noise absorbing wedge noise absorption noise absorption coefficient noise annoyance rating system noise attenuation noise cancelling noise carpet noise certification approach path noise certification procedure noise certification reference conditions noise certification scheme noise certification standard noise certification takeoff flight path noise certification test conditions noise characteristics noise charge noise control noise control technique noise curfew noise directivity noise dissipation noise disturbance noise dose contour noise environment noise evaluation noise evaluation method noise evaluation procedure noise exposure assessment method noise exposure contour noise exposure forecast noise field noise filter noise floor noise footprint noise generation noise immunity noise insulation noise level noise level attenuation curve noise level radiation noise level value noise map noise measurement location noise measurement procedure noise meter noise monitoring noise muffler noise path noise path length noise preferential route noise preferential runway noise pressure level noise propagation noise propagation pattern noise reduction noise reduction modification noise reduction requirements noise scale noise sertification test noise spectrum noise suppression noise suppression device noise suppressor noise test noise thrust correction originate noise peak perceived noise level permissible noise level radio noise reduce noise reduce noise level reverse thrust noise solar noise standard noise level subsonic noise standard take-off noise takeoff noise takeoff noise angle takeoff noise test test noise turbulence-induced noise unit noise duration

directional actuator directional aerial directional antenna directional control directional control capability directional control loss directional control pedal directional guidance directional gyro indicator directional gyroscope directional homing directional instability directional noise measurement directional propagation directional radio directional radio beacon directional rate directional receiver directional stability directional stability characteristic directional trim directional trim actuator highly directional antenna peaky directional distribution radio directional bearing

acoustical measurement system acoustic measurement station actual noise level measurement airborne error measurement aircraft landing measurement system angle measurement equipment approach measurement distance approach noise measurement automatic elevation measurement automatic range measurement braking action measurement ceiling measurement ceiling measurement equipment directional noise measurement distance measurement channel error measurement flight stress measurement tests flight test noise measurement flyover noise measurement inflight measurement lateral noise measurement distance noise measurement location noise measurement procedure pressure measurement pipe sideline measurement single level overflight measurement spot measurement unit of measurement

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- measurement of formation pressure
- measurement of mud resistivity
- measurement of production output
- measurement of production rate
- measurement of shear stress at zero shear rate
- measurement of stratum thickness
- measurement of viscosity
- measurement of wellhead pressure
- acoustic measurements
- acoustic position measurement
- acoustic well-logging measurement
- anisotropy measurement
- arc measurement
- bed permeability measurement
- borehole measurements
- borehole electrical measurements
- borehole gravity measurements
- borehole logging measurement
- borehole magnetic measurements
- borehole temperature measurements
- borehole-to-borehole measurements
- bottomhole flowing pressure measurement
- caliper measurement
- casing measurement
- compensated density measurement
- crossborehole measurements
- crosshole measurements
- crosshole acoustic measurements
- crosshole transmission measurements
- crosswell measurements
- depth measurement
- diagnostic measurement
- differential pressure measurement
- directional permeability measurement
- distant seismic measurements
- downhole measurements
- downhole pressure measurement
- drill pipe measurement
- drillhole measurements
- electrical measurements
- failure measurement
- field measurements
- final shut-in bottomhole pressure measurement
- flowmeter measurement
- electrical survey measurement
- electrical well-logging measurement
- first-peak measurement
- gas production rate measurement
- gas yield measurement
- gel strength measurement
- geophone measurement
- geophysical measurements
- gravity measurements
- high-pressure viscosity measurement
- high-temperature viscosity measurement
- hole-to-hole measurements
- initial flowing bottomhole pressure measurement
- initial shut-in bottomhole pressure measurement
- in-situ measurements
- interborehole measurements
- kelly bushing measurement
- logging tool measurement
- magnetic measurements
- maintainability measurement
- maintenance measurement
- multiple-hole measurements
- noise measurements
- normal-moveout measurement
- oil measurement
- oil production rate measurement
- overburden rock pressure measurement
- overflow measurement
- packer-flowmeter measurement
- pressure measurement
- pressure build-up measurement
- pressure drop measurement
- reflection measurements
- refraction measurements
- reliability measurement
- seismic measurements
- seismic noise measurement
- seismic velocity measurements
- shallow refraction measurements
- shallow resistivity measurement
- short-period measurements
- single-hole measurements
- spot measurement
- sonic log measurements
- stacking velocity measurements
- steel line measurement
- stretch measurement
- time-distance measurements
- tool measurement
- torque measurement
- ultrasonic pulse transit time measurement
- uphole-time measurements
- velocity measurement
- well measurements
- well-logging measurements
- well-production rate measurement
- wide-angle reflection measurements

- 2-handed controls
- 32-bit CPU control
- acceptance control
- access control
- acknowledge control
- active process control
- adaptable control
- adaptive constraint control
- adaptive control for optimization
- adaptive control
- adaptive feed rate control
- adaptive quality control
- adjustable feed control
- adjustable rotary control
- adjustable speed control
- adjusting control
- adjustment control
- AI control
- air logic control
- analog data distribution and control
- analogical control
- analytical control
- application control
- arrows-on-curves control
- autodepth control
- autofeed control
- automated control of a document management system
- automated technical control
- automatic backlash control
- automatic control
- automatic editing control
- automatic gain control
- automatic gripper control
- automatic level control
- automatic process closed loop control
- automatic remote control
- automatic sensitivity control
- automatic sequence control
- automatic speed control
- automatic stability controls
- auxiliaries control
- balanced controls
- band width control
- bang-bang control
- bang-bang-off control
- basic CNC control
- batch control
- bibliographic control
- bin level control
- boost control
- built-in control
- button control
- cam control
- cam throttle control
- camshaft control
- carriage control
- Cartesian path control
- Cartesian space control
- cascade control
- C-axis spindle control
- cell control
- center control
- central control
- central supervisory control
- centralized control
- centralized electronic control
- central-station control
- changeover control
- chip control
- circumferential register control
- close control
- closed cycle control
- closed loop control
- closed loop machine control
- closed loop manual control
- closed loop numerical control
- closed loop position control
- clutch control
- CNC control
- CNC indexer control
- CNC programmable control
- CNC symbolic conversational control
- CNC/CRT control
- CNC/MDI control
- coarse control
- coded current control
- coded current remote control
- color control
- combination control
- command-line control
- compensatory control
- composition control
- compound control
- computed-current control
- computed-torque control
- computer control
- computer numerical control
- computer process control
- computer-aided measurement and control
- computer-integrated manufacturing control
- computerized control
- computerized numerical control
- computerized process control
- constant surface speed control
- constant value control
- contactless control
- contact-sensing control
- contamination control
- continuous control
- continuous path control
- continuous process control
- contour profile control
- contouring control
- conventional hardware control
- conventional numerical control
- conventional tape control
- convergent control
- conversational control
- conversational MDI control
- coordinate positioning control
- coordinate programmable control
- copymill control
- counter control
- crossed controls
- current control
- cycle control
- dash control
- data link control
- data storage control
- deadman's handle controls
- depth control
- derivative control
- dial-in control
- differential control
- differential gaging control
- differential gain control
- differential temperature control
- digital brushless servo control
- digital control
- digital position control
- digital readout controls
- dimensional control
- direct computer control
- direct control
- direct digital control
- direct numerical control
- direction control
- directional control
- dirt control
- discontinuous control
- discrete control
- discrete event control
- discrete logic controls
- dispatching control
- displacement control
- distance control
- distant control
- distributed control
- distributed numerical control
- distributed zone control
- distribution control
- dog control
- drum control
- dual control
- dual-mode control
- duplex control
- dust control
- dynamic control
- eccentric control
- edge position control
- EDP control
- electrical control
- electrofluidic control
- electromagnetic control
- electronic control
- electronic level control
- electronic speed control
- electronic swivel control
- elevating control
- emergency control
- end-point control
- engineering change control
- engineering control
- entity control
- environmental control
- error control
- error plus error-rate control
- error-free control
- external beam control
- factory-floor control
- false control
- feed control
- feed drive controls
- feedback control
- feed-forward control
- field control
- fine control
- finger-tip control
- firm-wired numerical control
- fixed control
- fixed-feature control
- fixture-and-tool control
- flexible-body control
- floating control
- flow control
- fluid flow control
- follow-up control
- foot pedal control
- force adaptive control
- forecasting compensatory control
- fork control
- four quadrant control
- freely programmable CNC control
- frequency control
- FROG control
- full computer control
- full order control
- full spindle control
- gage measurement control
- gain control
- ganged control
- gap control
- gear control
- generative numerical control
- generic path control
- geometric adaptive control
- graphic numerical control
- group control
- grouped control
- guidance control
- hairbreath control
- hand control
- hand feed control
- hand wheel control
- hand-held controls
- handle-type control
- hand-operated controls
- hardened computer control
- hardwared control
- hardwared numerical control
- heating control
- heterarchical control
- hierarchical control
- high-integrity control
- high-level robot control
- high-low control
- high-low level control
- high-technology control
- horizontal directional control
- humidity control
- hybrid control
- hydraulic control
- I/O control
- immediate postprocess control
- inching control
- in-cycle control
- independent control
- indexer control
- indirect control
- individual control
- industrial processing control
- industrial-style controls
- infinite control
- infinite speed control
- in-process control
- in-process size control
- in-process size diameters control
- input/output control
- integral CNC control
- integral control
- integrated control
- intelligent control
- interacting control
- interconnected controls
- interlinking control
- inventory control
- job control
- jogging control
- joint control
- joystick control
- just-in-time control
- language-based control
- laser health hazards control
- latching control
- lead control
- learning control
- lever control
- lever-operated control
- line motion control
- linear control
- linear path control
- linearity control
- load control
- load-frequency control
- local control
- local-area control
- logic control
- lubricating oil level control
- machine control
- machine programming control
- machine shop control
- macro control
- magnetic control
- magnetic tape control
- main computer control
- malfunction control
- management control
- manual control
- manual data input control
- manual stop control
- manually actuatable controls
- manufacturing change control
- manufacturing control
- master control
- material flow control
- MDI control
- measured response control
- mechanical control
- memory NC control
- memory-type control
- metering control
- metrological control of production field
- microbased control
- microcomputer CNC control
- microcomputer numerical control
- microcomputer-based sequence control
- microprocessor control
- microprocessor numerical control
- microprogrammed control
- microprogramming control
- milling control
- model reference adaptive control
- model-based control
- moisture control
- motion control
- motor control
- motor speed control
- mouse-driven control
- movable control
- multicircuit control
- multidiameter control
- multilevel control
- multimachine tool control
- multiple control
- multiple-processor control
- multiposition control
- multistep control
- multivariable control
- narrow-band proportional control
- navigation control
- NC control
- neural network adaptive control
- noise control
- noncorresponding control
- noninteracting control
- noninterfacing control
- nonreversable control
- nonsimultaneous control
- numerical contouring control
- numerical control
- numerical program control
- odd control
- off-line control
- oligarchical control
- on-board control
- one-axis point-to-point control
- one-dimensional point-to-point control
- on-line control
- on-off control
- open loop control
- open loop manual control
- open loop numerical control
- open-architecture control
- operating control
- operational control
- operator control
- optical pattern tracing control
- optimal control
- optimalizing control
- optimizing control
- oral numerical control
- organoleptic control
- overall control
- overheat control
- override control
- p. b. control
- palm control
- parameter adaptive control
- parameter adjustment control
- partial d.o.f. control
- path control
- pattern control
- pattern tracing control
- PC control
- PC-based control
- peg board control
- pendant control
- pendant-actuated control
- pendant-mounted control
- performance control
- photoelectric control
- physical alignment control
- PIC control
- PID control
- plugboard control
- plug-in control
- pneumatic control
- point-to-point control
- pose-to-pose control
- position/contouring numerical control
- position/force control
- positional control
- positioning control
- positive control
- postprocess quality control
- power adaptive control
- power control
- power feed control
- power-assisted control
- powered control
- power-operated control
- precision control
- predictor control
- preselective control
- preset control
- presetting control
- pressbutton control
- pressure control
- preview control
- process control
- process quality control
- production activity control
- production control
- production result control
- programmable adaptive control
- programmable cam control
- programmable control
- programmable logic adaptive control
- programmable logic control
- programmable machine control
- programmable microprocessor control
- programmable numerical control
- programmable sequence control
- proportional plus derivative control
- proportional plus floating control
- proportional plus integral control
- prototype control
- pulse control
- pulse duration control
- punched-tape control
- purpose-built control
- pushbutton control
- quality control
- radio remote control
- radium control
- rail-elevating control
- ram stroke control
- ram-positioning control
- rapid-traverse controls for the heads
- rate control
- ratio control
- reactive control
- real-time control
- reduced-order control
- register control
- registration control
- relay control
- relay-contactor control
- remote control
- remote program control
- remote switching control
- remote valve control
- remote-dispatch control
- resistance control
- resolved motion rate control
- retarded control
- reversal control
- revolution control
- rigid-body control
- robot control
- robot perimeter control
- robot teach control
- rod control
- safety control
- sampled-data control
- sampling control
- schedule control
- SCR's control
- second derivative control
- selective control
- selectivity control
- self-acting control
- self-adaptive control
- self-adjusting control
- self-aligning control
- self-operated control
- self-optimizing control
- self-programming microprocessor control
- semi-automatic control
- sensitivity control
- sensor-based control
- sequence control
- sequence-type control
- sequential control
- series-parallel control
- servo control
- servo speed control
- servomotor control
- servo-operated control
- set value control
- shaft speed control
- shape control
- shift control
- shop control
- shower and high-pressure oil temperature control
- shut off control
- sight control
- sign control
- single variable control
- single-flank control
- single-lever control
- size control
- slide control
- smooth control
- software-based NC control
- softwared numerical control
- solid-state logic control
- space-follow-up control
- speed control
- stabilizing control
- stable control
- standalone control
- start controls
- static control
- station control
- statistical quality control
- steering control
- step-by-step control
- stepless control
- stepped control
- stick control
- stock control
- stop controls
- stop-point control
- storage assignment control
- straight cut control
- straight line control
- stroke control
- stroke length control
- supervisor production control
- supervisory control
- swarf control
- switch control
- symbolic control
- synchronous data link control
- table control
- tap-depth controls
- tape control
- tape loop control
- teach controls
- temperature control
- temperature-humidity air control
- template control
- tension control
- test control
- thermal control
- thermostatic control
- three-axis contouring control
- three-axis point-to-point control
- three-axis tape control
- three-mode control
- three-position control
- throttle control
- thumbwheel control
- time control
- time cycle control
- time optimal control
- time variable control
- time-critical control
- time-proportional control
- timing control
- token-passing access control
- tool life control
- tool run-time control
- torque control
- total quality control
- touch-panel NC control
- touch-screen control
- tracer control
- tracer numerical control
- trajectory control
- triac control
- trip-dog control
- TRS/rate control
- tuning control
- turnstile control
- two-axis contouring control
- two-axis point-to-point control
- two-dimension control
- two-hand controls
- two-position control
- two-position differential gap control
- two-step control
- undamped control
- user-adjustable override controls
- user-programmable NC control
- variable flow control
- variable speed control
- variety control
- varying voltage control
- velocity-based look-ahead control
- vise control
- vision responsive control
- visual control
- vocabulary control
- vocal CNC control
- vocal numerical control
- voltage control
- warehouse control
- washdown control
- water-supply control
- welding control
- wheel control
- wide-band control
- zero set control
- zoned track control

- band microphone
- built-in microphone
- button bar microphone
- button microphone
- capacitor microphone
- carbon microphone
- cardioid microphone
- ceramic microphone
- combined microphone
- condensor microphone
- contact microphone
- crystal microphone
- differential-electromagnetic microphone
- directional microphone
- double-button microphone
- dynamic microphone
- electret microphone
- electronic microphone
- electrostatic microphone
- fiber-optic microphone
- high-stable microphone
- hot-wire microphone
- hypercardioid microphone
- inductive microphone
- lapel microphone
- magnetic microphone
- magnetostrictive microphone
- measurement microphone
- miniature microphone
- moving-coil microphone
- noise-canceling microphone
- noise-resistant microphone
- one-inch microphone
- parabolic-reflector microphone
- paraboloid microphone
- piezocrystal microphone
- piezoelectric microphone
- pressure gradient microphone
- pressure microphone
- reflector microphone
- reluctance microphone
- ribbon microphone
- single-button microphone
- spike microphone
- standard microphone
- throat microphone
- unidirectional microphone
- velocity microphone
- vocal microphone
- wireless microphone