- Absolute instrument & Secondary instruments:
- Analog and Digital instrument:
- Mechanical, Electrical and Electronics Instruments:
- Deflection and Null Output Instruments:
- Self-operated and Power-operated Instruments:
What are the classification of measurement?
Psychologist Stanley Smith Stevens developed the best-known classification with four levels, or scales, of measurement:
nominal, ordinal, interval, and ratio
.
What are the three classification of measurement?
The three measures are
descriptive, diagnostic, and predictive
. Descriptive is the most basic form of measurement.
In which classification of instrument digital instruments belong?
Classification. In musicology, electronic musical instruments are known as
electrophones
. Electrophones are the fifth category of musical instrument under the Hornbostel-Sachs system.
What are the broad classifications of measuring instruments?
The broad classifications are,
Absolute and Secondary instruments
based on the methodology of measurement. Analog and Digital instruments based on the kind of output. Ammeter, Voltmeter, Wattmeter, Energy meter and Watthour meter based on the quantity of measurement.
How vibration measuring instruments are classified?
Depending on the quantity measured, a vibration measuring instrument is called a
vibrometer
, a velocity meter, an accelerometer, a phase meter, or a frequency meter. … In some application, we need to vibrate a machine or structure to find its resonance characteristics.
What are the electrical instruments are classified?
- Absolute Instrument. …
- Secondary Instrument. …
- Indicating Instrument. …
- Recording Instrument. …
- Integrating Instrument. …
- Null Deflection Instrument. …
- AC Instrument. …
- DC Instrument.
What are the 4 measurement scales?
Psychologist Stanley Stevens developed the four common scales of measurement:
nominal, ordinal, interval and ratio
. Each scale of measurement has properties that determine how to properly analyse the data.
What are the 4 levels of measurement?
There are four levels of measurement –
nominal, ordinal, and interval/ratio
– with nominal being the least precise and informative and interval/ratio variable being most precise and informative.
What is called measurement?
Measurement,
the process of associating numbers with physical quantities and phenomena
. Measurement is fundamental to the sciences; to engineering, construction, and other technical fields; and to almost all everyday activities.
What are the 5 types of measurements?
Types of data measurement scales:
nominal, ordinal, interval, and ratio
.
What are the 2 types of measurement?
Systems of Measurement: there are two main systems of measurement in the world:
the Metric (or decimal) system and the US standard system
. In each system, there are different units for measuring things like volume and mass.
What are the 7 basic units of measurement?
- Length – meter (m)
- Time – second (s)
- Amount of substance – mole (mole)
- Electric current – ampere (A)
- Temperature – kelvin (K)
- Luminous intensity – candela (cd)
- Mass – kilogram (kg)
What are the types of analogue instruments?
- Direct Current (DC)
- Alternating Current (AC)
- Direct and Alternating Current (DC/AC)
What is the principle of indicating instruments?
The indication of any instrument is determined by
the combined effect of the deflecting torque and the control torque
. The value of the deflecting torque must be a function of the electrical effect to be measured, e.g. voltage or current. The control torque acts in an opposite sense to the deflecting torque.
What are primary and secondary instrument?
To put it simply,
a primary standard is a factual universal measurement
while a secondary standard is a device directly calibrated previously by the primary standard.
