Measurement & Metrology

Measurement & Metrology is a subject of mechanical engineering, Metrology is the science of measurement. Metrology includes all theoretical and practical aspects of measurement. The App covers the subject in detail.

The app is a handbook covering lecture notes, definitions, concepts, diagrams, formulas, theory, laws, tools, equations, calculations and graphs on the subject. The App covers the topic in a flashcard like format, purpose of the App is faster learning and revisions of the subject.

It covers more than 120 topics of Measurement and Metrology in detail. The topics are divided in 4 units.

Some of topics Covered in this application are:

1. The Multiple Gauge Bridge

2. Fixed Point Temperatures and Interpolation

3. Liquid-in-Glass Thermometers

4. Bimetallic Thermometers

5. ELECTRICAL RESISTANCE THERMOMETRY

6. Resistance Temperature Detectors

7. Resistance Temperature Device Resistance Measurement

8. Thermistors

9. THERMOELECTRIC TEMPERATURE MEASUREMENT

10. Fundamental Thermocouple Laws

11. INTRODUCTION TO MEASUREMENT

12. Basic Temperature Measurement with Thermocouples

13. MEASUREMENT UNITS

14. STANDARD MEASURING UNITS

15. DERIVED UNITS

16. MEASUREMENT SYSTEM APPLICATIONS

17. ELEMENTS OF A MEASUREMENT SYSTEM

18. CHOOSING APPROPRIATE MEASURING INSTRUMENTS

19. GENERALIZED MEASURING SYSTEM

20. PRESSURE CONCEPTS

21. SOURCES OF ERROR

22. SOME DEFINITIONS IN MEASUREMENTS

23. EFFECT OF HYSTERESIS ERROR OVER ACCURACY

24. McLeod Gauge

25. LINEARITY ERROR/ZERO ERROR

26. CALIBRATION

27. STATIC AND DYNAMIC PERFORMANCE CHARACTERISTICS OF MEASUREMENT DEVICES

28. ACCURACY, PRECISION, AND BIAS

29. PRESSURE TRANSDUCERS

30. Bourdon Tube

31. Bellows and Capsule Elements

32. Diaphragms

33. Strain Gauge Elements

34. Capacitance Elements

35. Piezoelectric Crystal Elements

36. SIGNAL TRANSMISSION

37. CURRENT LOOP TRANSMISSION

38. PRESSURE TRANSDUCER CALIBRATION

39. OPTICAL WIRELESS TELEMETRY

40. RADIO TELEMETRY

41. DIGITAL TRANSMISSION PROTOCOLS

42. SENSORS AND TRANSDUCERS

43. MECHANICAL CHARACTERISTICS OF SENSORS

44. MECHANICAL LIMIT SWITCHES

45. PROXIMITY LIMIT SWITCHES

46. PHOTOELECTRIC SENSORS

47. STRESS AND STRAIN

48. FLUID FLOW SWITCH

49. TRANSDUCERS

50. LINEAR VARIABLE DIFFERENTIAL TRANSFORMERS

51. RESOLVERS

52. OPTICAL ENCODERS

53. Lateral Strains

54. ULTRASONIC RANGE SENSORS

55. VELOCITY TRANSDUCERS

56. TACHOMETERS

57. FORCE OR PRESSURE TRANSDUCERS

58. STRAIN GAGES

59. TEMPERATURE TRANSDUCERS

60. RESISTANCE-TEMPERATURE DETECTORS (RTD)

61. THERMISTORS

62. Metallic Gauges

63. STRAIN GAUGE ELECTRICAL CIRCUITS

64. APPARENT STRAIN AND TEMPERATURE COMPENSATION

65. Temperature Compensation

66. Bridge Static Sensitivity

67. Analysis of Strain Gauge Data

68. Signal Conditioning

69. Basic Characteristics of Light

70. METROLOGY

71. METROLOGY AND INSPECTION

72. Moir e Methods

73. STANDARDS OF LINEAR MEASUREMENT

74. LINE AND END STANDARDS

75. LIMIT

76. FITS

77. TOLERANCES

78. INTERCHANGEABILITY

79. STANDARISATION

80. LINEAR MEASUREMENTS DEVICES

81. ANGULAR MEASUREMENTS DEVICES

82. SYSTEMS COMPARATORS

83. SYSTEMS COMPARATORS: SIGMA

84. JOHANSSON’S MICROKRATOR

85. LIMIT CLASSIFICATION

86. GAUGES CLASSIFICATION

87. TAYLOR’S PRINCIPLE OF GAUGE DESIGN

88. Measurement of geometric forms

89. MEASUREMENT OF GEOMETRIC STRAIGHTNESS

90. FLATNESS

91. ROUNDNESS

92. TOOL MAKERS MICROSCOPE

93. PROFILE PROJECT

94. AUTOCOLLIMATOR

95. INTERFEROMETRY

96. PRINCIPLE OF INTERFEROMETRY

97. USE OF INTERFEROMETRY

98. OPTICAL FLAT

99. MEASUREMENT OF SCREW THREADS

Some common standards in Measurement & Metrology include:

ISO 17025:2005—General Requirements for Calibration Laboratories

ISO 9000—Quality Systems Management

ISO 14000—Environmental Management

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