What Does 'g' Measure?

‘g’ is the engineering unit utilized for acceleration measurement and 1 g is defined as 32.1741 ft/sec2. An accelerometer that has a range of ± 10 g can measure acceleration between -321.7405 ft/sec2 and +321.7405 ft/sec2. The value of 1 g in meters is 9.8057 m/ sec2 and 386.0885 in/ sec2 in inches.

Different g Levels

One can experience different g levels in everyday life, while accelerating a car, during airplane takeoff, or riding on a roller coaster. Although people often do not make out how much the g level is, they can certainly sense it.

The estimates of different g levels commonly found in daily life and in familiar applications are listed out in the following table.

Table. Estimates of g Levels

g Level Application
0.61 Automobile, 0-60, 4.5 seconds
0.75 Automobile braking
1 Strong earthquake
1.8 Steep climb in Airbus A-300
2 Commercial appliance control
2 Kill sperm whale
3 Indy car on turn
3 Space shuttle taking off
3 Sneeze
3.3 Fuel dragster
3.5 Cough
4 Slap on Back
4.5 Titan Roller Coaster, 4 Flags, Texas
5 NASCAR vehicle on turn
6 Humans black out
9 Rocket dragster
10 Flutter testing - aircraft
10 Car crash that will break human bones
15 Jet aircraft ejection seat
19 Tiger Woods estimated golf swing
30 Break ribs when held by seat belt
33 When parachute opens
35 NASCAR vehicle hitting the wall
50 16 oz boxing glove punch
85 Estimated g's in Princess Diana's crash
100 6 oz boxing glove punch
100 Karate chop to the head
100 Under vehicle road testing
150 Jump of a flea
246 4 foot drop on grass football field
300 Foot hitting a soccer ball
300 Helmet testing
1000 Automotive impact testing
2000 Crash test dummies
2400 Dogwood flower releasing pollen
3000 Baseball struck by a bat
8000 Matis shrimp striking appendage
20000 Smart, gun-fired projectiles
60000 Explosions

About Measurement Specialties

Measurement Specialties is a global designer and manufacturer of sensors and sensor-based systems which measure pressure/force, position, vibration, temperature, humidity, and fluid properties. Measurement Specialties' products are used as embedded devices by original equipment manufacturers (OEMs) or as stand alone sensors for test and measurement to provide critical monitoring, feedback and control input.

This company is at the heart of many everyday products and provide a vital link to the physical world.

Measurement Specialties is an applications company and this company understands that embedded solutions often require customized designs. The portfolio for Measurement Specialties includes technologies capable of measuring most physical characteristics and allows them to design the right sensor for the application.

Physical property, electrical input/output and package configuration are all important considerations when developing products to meet their customers’ needs.

This company continues to expand its technology portfolio and geographic reach through the acquisition of strategically complementary companies. Measurement Specialties' operations in the US, Europe and China provide resources close to their customers. This global footprint allows this company to offer the lowest cost of ownership to OEMs.

Measurement Specialties value proposition is to understand the customer's sensing needs and develop a solution that meets their performance and cost objectives. At Measurement Specialties, Measurement Specialties are Sensing Your World.

This information has been sourced, reviewed and adapted from materials provided by Measurement Specialties.

For more information on this source, please visit Measurement Specialties.


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