What is a meter used to measure

Two tape measures , one in mm, the other in cm. A meter is equal to 1centimeters. Brannock Device, measuring shoe size.

The metre or meter (American spelling) is the base unit of length in the International System of Units (SI). A gas meter measures energy indirectly by recording the volume of gas used.

Below is the list of measuring instruments used in electrical and electronic work.

Ammeter ( Ampermeter ), Measures current.

Cos Phi Meter , Measures the power . Examples include the volume-unit (VU) meter in home audio systems, the ammeter to measure electric current, and the kilowatt-hour meter to measure electrical energy . Meter definition, the fundamental unit of length in the metric system, equivalent to 39. The liter (cubic decimeter ), although not an SI unit, is accepted for use with the SI and is commonly used to measure fluid volume. Some meters measure currents as low as milliamps or even microamps. An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to an electric current. Micro-ohmmeters ( microhmmeter or microohmmeter) make low resistance measurements.

Megohmmeters measure large values of resistance. The unit of measurement for resistance is ohms (Ω). Meters which measured the amount of charge (coulombs) used , known as ampere-hour meters , were used in the early days of electrification. Much of the material on the earliest stages in the development of the hodometer are adequately covered in odometer.

Newton meters weighing objects. A force meter is used to measure forces. The bigger the force applie the longer the spring stretches and the bigger the reading. Because of these adjustments, a standard lux or light meter is ideal for use in areas that utilise incandescent lighting.

This makes them ideal tools for checking lighting in most workplace environments. Meters Units of length in physics and chemistry should be expressed in meters. Photographers working with controlled lighting and cinematographers use handheld . Water metering is the process of measuring water use.

This information can be used to determine if the material is ready for use , unexpectedly wet or dry, or otherwise in need of further inspection. Wood and paper products are very sensitive to their moisture content. A sound level meter is used for acoustic measurements. A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit. Various types of frequency meters are used.

Many are instruments of the deflection type, ordinarily used for measuring low frequencies but capable of being used for frequencies as high as 9Hz. These operate by balancing two . Photometry ( measuring light levels) is the science of measurement of visible light in terms of its perceived brightness to human vision. Light can be measured in several ways. Two of the most frequently used methods used in industry include Lux and foot-candles. In fact, it is so small that such meter movement designs are impractical for use in general test instruments.

Typically, electrostatic meter movements are used for measuring very high voltages (many thousands of volts). One great advantage of the electrostatic meter movement, however, is the fact that it has extremely high .