说New words

•        Automatically自动

•        Parameter参数

•        Monitoring检测

•        Instrumentation仪器

•        Impending迫近的、即将发生的

•        Manually手动

•        Relevant相关

•        Limitation限制

•        Multitude众多

•        Dial 表盘

•        Gauge 仪表

•        Panel 面板

•        Cathoderay 阴极射线

•        Lever 操纵杆

•        Interconnect互联

•        Propellercontrol unit 螺旋桨控制装置

•        Throttle节流阀

•        Pitch 俯仰、力度

•        Incorporate合并、吸收

•        Fuelshut-off cock 燃油截止活门

•        Gimbal平衡架、万向节

•        Evacuated真空膜盒

•        Potentiometer电位计

•        Thrustmeter推力计

•        Sub-scale副标

•        Electro-mechanical机电

•        Transducer传感器

•        Capsule压缩

•        Pivot 轴、转点

•        A.C.electrical 交流电

•        Torque扭矩

•        Helical螺旋形

•        Probe 探查、探测器

•        Three-phasealternating current 三相交流电

•        Synchronous同步

•        Magnet磁铁

•        Reluctance磁阻

•        Conjunction汇合点

•        Phonicwheel 音轮

•        Periphery外缘

•        Coil 线圈

•        Instrumentpanel 仪表板

•        Slattingcircuit 起动电路

•        Parallelcircuit 并联电路

•        Millivoltmeter毫伏表

•        Degreescentigrade 摄氏度

•        Electromotiveforce 电动势

•        Nickelchromium wire 镍铬丝

•        Progressively逐步

•        Feedoil 供油

•        Returnoil 回油

•        Cavitation气蚀

•        Filter过滤器

•        Blockage堵塞

•        Gallon加仑

•        Kilogram千克

•        Milliammeter毫安表

•        Existence存在

•        Safeguard保护

•        Centralwarning panel 中央警告面板

•        Aircraftintegrated data system 飞机综合数据系统

•        Blackbox 黑匣子

•        Hazardous危险的

•        Contamination污染

•        Deviation偏离

•        Consolidate巩固

•        Crew 机组

•        Readout读数器

•        Override覆盖

•        Elect 选择

•        Urgency紧迫性

•        Tolerance忍受、耐受、公差

•        Centralize集中

•        Deck 甲板、舱面

•        Synchronizing同步

•        Synchro-phasing同相

•        Trim 修正

•        Synchroscope同步示波器

读Sentence

•        2. Allengine parameters require monitoring and instrumentation is provided to informthe pilot of the correct functioning of the various engine systems and to warnof any impending failure. Should any of the automatic governors fail, theengine can be manually controlled by the pilot selecting the desired thrustsetting and monitoring the instruments to maintain the engine within therelevant operating limitations.

•        5. Onengines fitted with afterburning, single lever control is maintained, althougha further fuel system is required to supply and control the fuel to theafterburner (Part 16).

•        8. Aturbo-jet engine fitted with a thrust reverser usually has an additionalcontrol lever that allows reverse thrust to be selected (Part 15). On aturbo-propeller engine, a separate control lever is not required because theinterconnected throttle and P.C.U. lever is operated to reverse the pitch ofthe propeller.

•        11. Ineach instance, an indication of thrust output is given, although when only theturbine discharge pressure is measured, correction is necessary for variationof inlet pressure; however, both types may require correction for variation ofambient air temperature. To compensate for ambient atmospheric conditions, itis possible to set a correction figure to a sub-scale on the gauge; thus, theminimum thrust output can be checked under all operating conditions.

•        14.E.P.R. can be indicated by either electro- mechanical or electronic transmitters.In both cases the inputs to the transmitter are engine inlet pressure (P₁)and an integrated pressure (P_INT) comprised of fan outlet andturbine exhaust pressures. In some cases either fan outlet pressure or turbineexhaust pressure are used alone in place of P_INT.

•        16.The servo motor, through the gears, alters the potentiometer output voltagesignal to the E.P.R. indicator and simultaneously drives the gimbal in the samedirection as the initial yoke movement until the L.V.D.T. signal to the motoris cancelled and the system stabilizes at the new setting.

•        19. Atorquemeter system is shown in fig. 12-4. In this system, the axial thrustproduced by the helical gears is opposed by oil pressure acting on a number ofpistons; the pressure required to resist the axial thrust is transmitted to theindicator.

•        22.Engine speed indication is electrically transmitted from a small generator,driven by the engine, to an indicator that shows the actual revolutions perminute (r.p.m.), or a percentage of the maximum engine speed (fig. 12-5). Theengine speed is often used to assess engine thrust, but it does not give anabsolute indication of the thrust being produced because inlet temperature andpressure conditions affect the thrust at a given engine speed.

•        26. Inaddition to providing an indication of rotor speed, the current induced at thespeed probe can be used to illuminate a warning lamp on the instrument panel toindicate to the pilot that a rotor assembly is turning. This is particularlyimportant at engine start, because it informs the pilot when to open the fuelcock to allow fuel to the engine. The lamp is connected into the slattingcircuit and is illuminated during the starting cycle.

•        29.The thermocouple probes used to transmit the temperature signal to theindicator consist of two wires of dissimilar metals that are joined togetherinside a metal guard tube. Transfer holes in the tube allow the exhaust gas toflow across the junction. The materials from which the thermocouples wires aremade are usually nickel-chromium and nickel-aluminium alloys.

•        42. Onsome engines, a fuel differential pressure switch, fitted to the low pressurefuel filter, senses the pressure difference across the filter element. Theswitch is connected to a warning lamp that provides indication of partialfilter blockage, with the possibility of fuel starvation.

•        47. Acrystal-type vibration transmitter, giving a more reliable indication ofvibration, has been developed for use on multi-spool engines. A system offilters in the electrical circuit to the gauge makes it possible to compare thevibration obtained against a known frequency range and so locate the vibrationsource. A multiple-selector switch enables the pilot to select a specific areato obtain a reading of the level of vibration.

•        53.After each flight the magnetic tape is processed by computer and the resultsare analyzed. Any deviation from the normal condition will enable a fault to beidentified and the necessary remedial action to be taken.

•        59. Ona multi-engined aircraft, a synchronizing system ensures the propeller speedsare all the same. This is achieved by an electrical system that compares speedsignals from engine-mounted generators. Out-of-balance signals, using oneengine as a master signal, are automatically corrected by electrically trimmingthe engine speeds until all signals are equal.

读全文并回答以下问题：

•       How tocontrol the turbo-propeller engine by single lever?

•       Whatare the classifications of thrust-meter?

•       Whatare the functions of the torque-meter system?

•       Whatis advantage of the variable-reluctance speed probe?

•       How tomeasure the oil temperature?

•       Whatis the function of the synchrophasing system?