odometer & some terms in a instrumentation
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odometer & some terms in a instrumentation

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    odometer & some terms in a instrumentation odometer & some terms in a instrumentation Presentation Transcript

    • NAME : ADRI RAHADIAN SCLASS : 2-ANIM : 111611003http://www.slideshare.net/adri_rahadian
    • Task 1Odometer :An odometer or odograph is an instrument thatindicates distance traveled by a vehicle, such as abicycle or automobile. The device may beelectronic, mechanical, or a combination of the two.Tripmeter :Most modern cars include a trip meter (tripodometer). Unlike the odometer, a trip meter isreset at any point in a journey, making it possible torecord the distance traveled in any particularjourney or part of a journey.
    • Odometer & TripmeterAfter reaching the maximum reading, an odometer ortrip meter restarts from zero, called odometerrollover.
    • Task 2Accuracy :The difference between a measurement reading and thetrue value of that measurement.Precision :The degree to which an instrument will repeat the samemeasurement over a period of time.Precision is the ability to produce the same result from therepeated measurement and identical measuring. accuracymeasure is the amount of random error.Range :The limit of measurement values that an instrument iscapable of reading. The dimension being measured must fitinside this range or Absolute magnitude of a measurementof a measuring instrument.For exmp:Range: 0-0,1; 0,25; 0,5; 1; 2,5; 5; 10; 25; inci WC0-±0,1; 0,25; ±0,5; ±1; ±2,5; ±5 inci WC.
    • Subdivision :Subdivision is an area or part of something which isitself a part of something larger. Subdivision inmeasurement system is an units smaller than otherunits in the same process variable.Example : an angle have number of 360 degree of inone complete rotation. At each level have 60subdivision called minute and at each minute have 60subdivision called second.Error :The amount of deviation from a standard orspecification. Errors should be eliminated in themeasuring process.
    • Hysteresis :The delay between the action and reaction of ameasuring instrument. Hysteresis is the amount oferror that results when this action occurs.Stability :The ability of a measuring instrument to retain itscalibration over a long period of time. Stabilitydetermines an instruments consistency over time.Repeatability :The ability to obtain consistent results whenmeasuring the same part with the same measuringinstrument.
    • Sensitivity :Sensitivity is the smallest change in ameasurement that an instrument is capable ofdetecting.Resolution :The smallest change in a measured value thatthe instrument can detect. Resolution is alsoknown as sensitivity.
    • Thermocouple :A thermocouple consists of two conductors of differentmaterials (usually metal alloys) that produce a voltage in thevicinity of the point where the two conductors are in contact.The voltage produced is dependent on, but not necessarilyproportional to, the difference of temperature of the junctionto other parts of those conductors. Thermocouples are awidely used type of temperature sensor for measurement andcontrol and can also be used to convert a temperature gradientinto electricity.RTD :Resistance thermometers, also called resistance temperaturedetectors (RTDs), are sensors used to measure temperature bycorrelating the resistance of the RTD element withtemperature. The RTD element is made from a pure materialwhose resistance at various temperatures has beendocumented. The material has a predictable change inresistance as the temperature changes; it is this predictablechange that is used to determine temperature.
    • Thermocouple connected toa multimeter displaying roomtemperature in °C.
    • Pressure Transmitter :A pressure transmitter helps to accomplish twospecific goals. First, pressure instrumentsmonitor the amount of pressure applied to apart of the process that is required in order toachieve the desired result.Data logging :The process of using a computer to collect datathrough sensors, analyze the data and save andoutput the results of the collection and analysis.Data logging also implies the control of how thecomputer collects and analyzes the data.
    • Valve :Mechanical or electromechanical device bywhich the flow of a gas, liquid, slurry, orloose dry material can bestarted, stopped, diverted, and/orregulated.The type of valve (looked from function)include :Hidraulic ValvePneumatic ValveManual ValveSelenoid ValveMotor Valve
    • ADC :An analog-to-digitalconverter (abbreviated ADC, A/D or A to D) is adevice that uses sampling to converta continuous quantity to a discrete timerepresentation in digital form. The reverseoperation is performed by a digital-to-analogconverter (DAC).DAC :a digital-to-analog converter (DAC or D-to-A) isa device that converts a digital (usually binary)code to an analogsignal (current, voltage, or electric charge).An analog-to-digital converter (ADC) performsthe reverse operation.
    • 4-channel stereo multiplexed 8-channel digital-to-analoganalog-to-digital converter converterCirrus Logic CS4382WM8775SEDS made as used in a soundcard.by WolfsonMicroelectronics placed onan X-Fi Fatal1ty Prosoundcard.