TypesofSensors各种类型的传感器外文翻译.docx

1、TypesofSensors各种类型的传感器外文翻译Types of Sensors.Pressure sensorsModel FDS05-P Diffused Silicon Pressure Sensor: Tee intelligent industrial pressure sensor adopts the imported sensor of high quality. with great defending grade，it can work in any caustic condition. By linking external , linking external ca

2、nola，it can measure the temperature of the medium with high temperature. It is stable and capable of limiting current in positive direction and protecting in negative direction. It is with the ability of intelligent temperature and linearity compensation with the temperature of一40+ 140.It is widely

3、used in petrifaction ,metallurgy, electric power and light spinning. .Load cell &torque sensorsSuspended arm type Bx5: Its elastomeric adopts cutting (or curved) hanging girder configuration, so it is low in height and with high configuration intensity. It is good against fatigue and eccentricity. I

4、t is stable and reliable in product performances，high in precision, and convenient in mount-up and use. It is suitable for force measurement and weighting such as strap balance, chute balance, flat balance and ground balance .Loading type: pull ox push .Temp& hum sensorsMote MSTB Temperature Transdu

5、cer: A sensor module is fitted in the temperature trans-duckers terminal block，which uses a specific chip to magnify and has linearization approach to improve the measurement precision .Tie cold junction needs no compensation. Sa it is with high direct load capacity , large transfer distance and str

6、ong ability of ants-external interference。It is widely used for temperature measurement in electric power, petroleum, chemicals，building materials, and scientific research.Displacement sensorsEddy Current Displacement Vibration Sensor ST-1:Electric vortex sensors are non-con-tact displacement and vi

7、bration，sensors which adopt high frequency electric vortex effect principle .they can do non-contact measurement for the moving parameters of the moving metal object, especially for the objects within measurement range. They are used for tong-term checking and measuring of vibrations and displacemen

8、t in mechanism and heat dilation of vortex and machine shell，on-line automatic checking and automatic controlling of production line，measurement of manifold small distance end small moving in scientific research and so on. At present, they are widely used in energy sources. chemicals, medicine，vehic

9、les, metallurgy，ranching making, war industry, scientific research ,teaching and other fields.V. Flow sensorsVortex Flow sensor LUGB-A:LUGB-A series intelligent vortex flow sensors are locale display instruments whose main components are vortex flow sensor and hard-core is singe chip microprocessor

10、of micro-power. The products adopt microcomputer and micro-power techniques, They are sarong in function, compact in configuration and simple in manipulation. they are great instrumentsfor flow measurement of liquid, gas and steam in petroleum, chemicals, electric power, metallurgy and other fields.

11、 .Liquid-level sensorsUltrasonic Airborne Level Meter HD700: The ultrasonic liquid level meter HD700 adopts the principle of measurement of time-of-arrival to measure the height of the level。It is non-contact instrument, good resistance to disturbance and causticity，easy to mount-up，maintain and use

12、 suitable for being used in sophisticated environment of the industry locale .It adopts the specific ultrasonic sensor which has small power and receiving and sending in small bland area .It is high in precision，stable with line-measurement，capable of temperature compensation and against to caustici

13、ty，The height of the level is displayed digitally, and the 4-20mA signal is outputted at the same time.Display instrumentsDigital Single Input Intelligent Instrument X5T:X5T series intelligent instruments，combined with various analog sensors and transmitters ,implement measurement display，transforma

14、tion, .track record and warning of temperature，pressure，flow，liquid level，elements，force displacement.V&A sensorsCurrent Transducer LA 58一P: Current sensor of close loop (compensated) using Hall principle .It has an insulating crust in accord with LJG94-VU standard，installed on printing plug board.

15、Characteristics such as excellent precision，well linearity，low temperature excursion, optimal react time，wide frequency band ,no plug damage and strong anti-jamming .Use field such as alternating current frequency timing, servo pole, static transform dragged by direct current dynamo，battery power su

16、pply, UPS，SMPS and electric welding power supply. Voltage Transducer LV28-P: Voltage sensor of close loop(compensated) using Hall principle，It has an insulating crust in accord with UL94-V0 standard. When we measure。one，voltage, the scale between original current and measured voltage must be confirm

17、ed by user selected。exterior resistance Rl，and also R1 should be placed on original loop in series. Characteristics :excellent precision, well linearity，law temperature excursion, optimal react time, wide frequency hand，no plug damage and strong anti-jamming. Use field: alternating current frequency

18、 timing, servo pole, static transform dragged by direct current dynamo, battery power supply, UPS, SMPS and electric welding power sappily.Pressure and pressure TransmittersPressure arises when a force is applied over ate area. Provided the force is one Newton (N) and uniformly aver the area of one

19、square meter(rn2)，the pressure has been designated one Pascal(Pa=N/ rn2)。Pressure is a universal processing condition. It is also a condition of life on this planet: we dive at the bottom of an atmospheric ocean that extendsUpward for many miles. This mass of air has weight，and this weight pressing

20、downward causes atmospheric pressure. Water，a fundamental necessity of life，is supplied to most of us under pressure . In the typical process plant，pressure influences boiling point temperatures condensing point temperatures，process efficiency，costs，and other important factors .The measurement and c

21、ontrol of pressure，or lack of it(vacuum) in the typical process plant is critical .The working instruments in the plant usually include the simple pressure gauges，the precision recorders and indicators，and the pneumatic and electronic pressure transmitters .A pressure transmitter makes a pressure me

22、asurement and generates either a proportional or electrical signal is proportional to the pressure being sensed.In the process plant, it is impractical to locate the control instruments gut in the place tear the process It is alto true that most measurements are oat easily transmitted from some loca

23、ting Pressure measurement is an exception，but if a high pressure of some dangerous chemical is to be indicated or recorded several hundred feet from the point of dangerous chemical is to be indicated or recorded several hundred feet from the Pont of measurement ,a hazard may be form the pressure or

24、from the chemical carried.To eliminate this problem，a signal transmission system was developed. This system is usually either pressure (air pressure) or electrical. Using the transmission system，it well be possible to install most of the indicating，recording，arid control instruments in one bastion ,

25、This makes it practical for a minimum number of operators to run the plant efficiently When a pneumatic transmission system is employed，the measurement signal is con vetted into pneumatic signal by the transmitter scald from 0 to 100 percent of the reassured value .this transmitter is mounted close

26、to the point of measurement in the process, The transmitter output-air pressure far a pneumatic transmitter-is piped to the recording or control instrument. The standard output range for a pneumatic transmitter is 20 to100kPa，which is almost universally used. When an electronic pressure transmitter

27、is used，the pressure is converted to electrical signal that may be the electric current or voltage. Its standard range is from 4 to 20mA for the current signal or from 1 to 5V DC for the voltage signal. Now, another type of electrical signal，which is becoming common，is the digital or discrete signal

28、. The use of instruments and control systems based on computers or microprocessors is increased use of this type of signal. Sometimes it is important for analysis to obtain the parameters that describe the sensor/transmitter behavior. The gain is fairly simple to obtain once the span is known consid

29、er an electronic pressure transmitter with a range of 0600kpa.The gain is defined as the change in output divided by the change in input。in this case the output electrical signal (420rnA DC) and the input is process pressure( 060kPa). Thus the gainKr=(20mA-4rnA)/(600KP-0kPa)=16mA/600KPa=0.027mA/kPaT

30、emperature Measurement Temperature measurement is important the industrial control, as direct indications of the system or product state and as indirect indications of such factors as reaction rates energy flow，turbine efficiency，and lubricant quality. Present temperature scales have been in use for

31、 shout 200 years，The earliest instruments were based on the thermal expansion of gases and liquids. Such filled systems are still employed，although many other types of instruments are available. Representative temperature sensors include :the filled thermal systems, the liquid-in-glass thermometers，

32、the thermocouples ,the resistance temperature detectors (RIDS)，the Hermiston ，the bimetallic devices optical and radiation pyrometers and the temperature-sensitive paints. The advantages f electrical systems include high accuracy and sensitivity, practicality of switching or scanning several measure

33、ment points，larger distances possible between measuring elements and controllers，the replacement (rather than complete system)，the fast response，and the ability xo measure higher temperature. Among the electrical temperature sensors，the thermocouples sensors，the thermocouples and resistance temperature detecto