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force measurement
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Force
Force
In physics, force (power) is an action that "deforms an object" or "changes the velocity of an object," and is a physical quantity that expresses the magnitude of that action, defined as mass (m) x acceleration (a) = force (F). As shown in Solutions by force pages on this website, there are several types of force, such as tension, compression, shear, bending, and friction, and the magnitude of these forces is expressed in units of "N (Newton)".
In our daily lives, forces are generated everywhere. Force is generated not only in lifting and pulling things, but also in the act of chewing food and turning doorknobs, as you may be very familiar with. There is also a well-known force that is at work not only when we are moving, but also when we are at rest. That is gravity. Gravity, caused by the earth's gravitational pull and rotation, allows us to move on the earth in contact with the ground.
The acceleration of gravity on the earth varies from place to place, but the internationally agreed standard value is g = 9.80665 m/s2. For example, the magnitude of the force on an object of 1 kg mass at rest is calculated to be 1 (kg) x 9.8 (m/s2) = 9.8 (N), which is about 9.8 N.
The unit of force, Newton (N)
Story goes that the English physicist Isaac Newton produced the idea of universal gravitation by watching a falling apple. Although the "seeing the apple" is questionable, the "Newton (N)", which is now used as a unit of force, was named in honor of his achievement.
At a present day, the force of any object is measured using this unit of force, the newton (N). Although you may not hear it very often in daily life, the unit of newton (N) is frequently used to indicate the strength of products in catalogs and so on.
In Japan, the Measurement Act requires the use of "N (newton)" as a unit of force, whereas in other countries, kgf (kilogram-force), lbf (pound-force), and ozf (ounce-force) are also used.
(Example) 1kgf ≒ 9.8N (about 10 times)
1N ≒ 0.2248lbf
1lbf ≒ 16ozf
What is "F.S." for accuracy?
"F.S." is abbreviation of "Full Scale," which means "capacity."
Let's take an example:
ZTS-50N offers an accuracy of +/-0.2%F.S. And its capacity is 50N.
> The error is... 50N x (+/-0.2%) = +/-0.1N
> When the measured value is 30N using ZTS-50N,guaranteed result is...
30N+/-0.1N = 29.9N to 30.1N
UnitConverter
Unit ConverterConvenient Unit/Torque/
Tension conversion
6 Significant Digits (*Significant digits are meaningful digits that do not include zeros, which are used to indicate the scale.)
Products
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Attachments, Grips & Fixtures
Custom Made
Measurements in Special Environment
Temperature and Angle Adjustable Peel Tester
Spot Welding Pressure Gauge
Attachment to Bend Sample 90 Degrees
Horizontal Test Stand with Fine Adjustment Knob
Tester With Thermostatic Chamber
Tester With Far-infrared Heater
Table for Compression Load Cell
Test Stand for Testing at the Desired Position
Particular Samples Measurements
Peel Test Fixture for Crimped Postcard
Attachment for Fixing Wide and Thin Materials
Attachment for Wine Cork Extraction Test
Attachments for 90 degree score bend test
Attachments to measure forces to open flat pack carton
Attachments for break strength testing of lipsticks or lip balms
High capacity dual-column motorized test machine for compression test
Film Grip with Openable Gripping Part
Pantograph Grip with Pressurization Mechanism
Motorcycle Accelerator Torque Test Fixture
Peel Test Fixture for Solar Cell Ribbon
Test Stand With Large Table
Compression Test Attachment for LCD Panel
L-shaped Sample Fixture
Attachment for Opening/Closing Force Test of Takeout Container Lid
Attachment for Squeezing Force Test of Eye Drop Bottles
Compression Test Attachment for Squeeze Tube
Attachment for Welded Nut Tension Test
Attachment for Tube Tension Strength Test
Attachment for Hard-to-Grip Samples
Attachment for Compression Test of Nasal Spray
Individually Adjustable Torque Chuck Attachment
Resistance Force Measurement jig for Hair Combing Test
Attachment for Lateral Compression Test of Cup Containers
Water-Proof Shield for Motorized Torque Test Stand
Biaxial Tension Tester
Resize & Modification
Press Test Fixture (Wide Size)
Remote Control Switch for Motorized Test Stand
Semi-Customized Compression Attachments
Large Size of Compression Tester
Large Size of 90 Degree Peel Tester
Force Control Cable with Signal Output Box
Manual Test Stand with Displacement Output Option
Cutting Base Plate with groove and knife edge probe
Upper attachment for 4-point bending test
Main shaft stopper with a butterfly screw for MTS series
Wide Rubber Roller for Peel Test
Motorized Rubber Roller for Peel Test
Peel Fixture for Packaged Cooked Rice Lid
Cam grip with spring
Wedge Grip Without Adaptor
Customized Peeling Tester
Test Stand with 3-stage Force/Displacement setting/holding function
Torque Stand Shaft for Child Proof Lock Measurement
90 degree Peel Test Jig (High Capacity Type)
Tabletop Force Gauge Calibration Unit (High Capacity Type)
One-touch toggle clamp for Coefficient of Friction Fixture
Compact Motorized Test Stand
Tube Fixing Jig
Visualized Film Chuck
Tensile and Compression Torque Tester
Standards-Compliant Measurement
ISO 14704: 2000 Fine Ceramics 4-Point Bend Tester
Ampoule 3-Point Bend Tester
ISO/IEC 10373-1: 2006 Peel Tester of Identification Card
ISO 17480: 2015 Peel Tester for Gable-Top Package
ASTM D1894: 2014 Coefficient of Friction (COF) Tester
Attachments for score bend test
ISO 17480: 2015 45 Degree Complete Peel Test Fixture for Container Lid
IEC 61010-1 (2010) Spherical Jig for Compression Testing
ASTM D4032(Withdrawn 2025)Standard Test Attachment for Fabric Stiffness by Circular Bend Procedure
Peel Test Jig for Gable-Topped Package (No sample cut type)
