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What is Radius Gauge?

During the early period, there were no units for measuring thickness, which leads to the invention of the gauge.

radius gauge kresteel

Gauges are derived from the French word”jauge” which means the result of the measurement. We are all aware that gauges are used to measure the thickness, size or capacity of something.

concave and convex shape

Likewise, radius gauges are instruments that are used to measure the radius of the object.

blades of radius gauge

The radius gauge is combined with another gauge known as fillet gauge which in mechanics means a rounding of the part design.

kristeel radius gauge

Radius gauge is a radius measurement tool that can be used to measure the inner radius whereas the outer radius is measured by the fillet gauge.

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The construction of the radius gauge consists of two gauges having a number of steel strips or blades screwed together in one single holder. The screw is known as the lock screw.

parts of radius gauge

The radius measurement is usually in metric form and measured in mm(millimeter). The material used is entirely made up of stainless steel, but a  layer or finish of satin chrome can be added since it keeps the radius gauge corrosion free and gives them more rust resistance.

The blades used are of the concave and convex shape. It may be swung out of the holder case when necessary readings need to be taken as per the requirement.

radius gauge

The markings are inscribed on the upper surface of every individual blade

Types of radius gauge

Three sets of radius gauge are manufactured.

  • Set 1 measure the radius available from 0.6-0.8mm.
  • Set 2 measures 1-7mm,
  • Set 3 measures 3-8.25mm.

The object or workpiece whose radius is to be measured is taken and the blades are inserted one by one to check which one fits in exactly by comparing it with the radius on the object.

Specifications of radius gauge

The radius gauge is light in weight and has an attractive design. The world keeps evolving and new and advanced technologies are taking over the old methods, hence a more optimistic and advanced gauge known as “digital radius gauge” is also available.

radius and fillet gauge

It is used for obtaining a high level of precision. It is a measuring tool that is user-friendly and the end user can operate it with great ease, fast since it is digital and portable.

Construction of radius gauge

T he construction of a digital radius gauge is entirely different than that of a simple radius gauge. It has a digital screen that is used to display values and for adjusting them, a measuring head and a number of brackets or jaws of different sizes ranging from 5-100mm.

The digital screen, measuring head and jaws are connected together and used. Another important aspect to be noted is that the simple radius gauge is used for measurement of small radius objects whereas the digital radius is used for larger radius measurement.

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How to check depth of any object by vernier depth gauge?

As a engineer, every one should know how to check depth of any object. To know this, vernier depth gauge is simple and easily available.

Vernier depth gauge is commonly used in depth measurement. Another depth measuring gauge could be Depth micrometer for more precise Measurement upto 0.01 mm.

up to depth micrometer, Vernier depth gauge is often used just because of its simplicity and speed of taking result value.

Types of Vernier Depth Gauge

There are two type of Vernier depth gauge-

  1. Analog type
  2. Digital type

The least count of analog vernier depth gauge is 0.02 mm while least count of digital type depth gauge is 0.01 mm

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Vernier Depth Gauge is easy to available and can be shortlisted by customer review. We choose some of Vernier Depth gauge according to customer review.

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3D measurements

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Unlike 2D images or shapes,3D has a different perspective.We tend to see the parameters just as the way they are in the real world.

Technologies are reaching great heights, faster and better innovations are made every day. We can make 3D measurements and solve real-time problems easily.

But why do we need 3D measurements?

  • To get a different outlook and point of view.
  • To analyse and interpret the solution to any outcome or project through a digitalized format.
  • To reduce human efforts and manual work which is tedious and time consuming.

How do you make a 3D measurement?

It can be made by three ways:

  • Using a Software.
  • 3D scanning.
  • By an instrument known as Coordinate Measuring Machine(CMM) connected to a PC.

Using a Software:

For modeling a prototype without the use of any paperwork or building up a replica, software is used.

The measurements are automatic and simple. The software extracts the parameters required or takes the information given by the designer. It shows a representation of the features on the screen.

Dimensions may be added by a click on the screen. Maya, Cinema4D, Blender, and SketchUp are a few examples of software used in the 3D measurement.

3D scanning:

An object or model is taken, it is scanned initially using a 3D scanner converted into the digital scan, later printed using a 3D printer.

It can also scan a human to capture a 3D model of his shape.

It is widely used in photogrammetry, animation, and graphics. It is used for visualizing, simulating and rendering graphic designs.

CMM (Coordinate measuring machine):

Coordinate Measuring Machine uses a probe and measures the geometry of physical objects or entities. It is connected to a PC that has software installed.

The construction consists of a granite or steel table and a rotary table, sleeve, support system, head probe, the position detector, and a scale. These machines are handheld and portable.

The probes used can be mechanical, optical, laser or white light. The PC has software that creates 3D objects, stores the values of the object projected in the probe and gives back information to the CMM.

The Coordinate measuring machine is classified into the following types:

  • Gantry Type
  • Cantilever
  • Fixed Bridge
  • Moving Bridge
  • Horizontal Arm.
  • Column Type.

Where do we need 3D measurements?:

  • Manufacturing Industries to design and develop equipments,machinery and vehicles.
  • In the construction department.To make smaller 3D models of buildings and landscapes.
  • Designing and modelling objects.
  • Medical field to create human organs in digitalized 3D form and to study them in an effective manner for surgeries.
  • 3D animated movies and 3D graphics in games.
  • 3D printing.
  • Aerospace engineering to design propellers,planes and other representation of tools and alter them to form new ones.

Therefore 3D measurements form an important aspect in the evolving industries and technologies in the world.

The demand for its measurement and applications are increasing day by day. In the global level,3D measurement solves complex problems and paves the way to new ideas and designs.

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Precations while handling digital height gauges

Precautions (Useful tips)

  • Keep the column and the slider, clean. That make measurement easier.
  • When slide Slider securely locks should be off. And remember to ON when required slider at rest position.
  • Set Zero first, If the main scale of the height gauge can be moved, move it as required to set the zero point, and securely tighten the fixing nuts to make it fixed.
  • Errors due to parallax error are not negligible. When reading a value, always look straight at the graduations.
  • You should avoid direct sunlight, high temperatures, low temperatures, and high humidity during storage. If a digital height gauge will not be used for more than three months, remove the battery before storage.

The electronic Height gauge is very compact, simple, easy to use instrument widely used in industries, tool rooms, workshops etc.

Some think you should consider while handling Electronic Height Gauge, Because of the cost of Electronic Height gauge matter in any industries or organization.

Electronic Height gauge used to measure vertical dimension from reference ground. Electronic Height gauge show digital display for output results with a least count of 0.01 mm.

If you are looking for buy this instrument, visit Digital height Gauge store

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Is it possible to measure softness of our skin?

adorable baby baby feet beautiful
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Our skin is very sensitive, changes on situations and environment conditions.  Every person in our world like to have very beautiful soft skin, most of them are girls, of course!

Have you ever think about measure or comparison of our skin? suck like there any devices or instruments or soft-wares available to check out our skin softness !

Since now we do not heard such things, also this things are not available in market or everywhere, in fact we do not know about it exit in our world . On other hand measurement of our skin color is quite simple, we easily evaluate difference between black or white !!

Our skin is made of some superficial layers, according to science it would be possible to measure softness of our skin but not in a simple manner. Let me give you some examples..

First think is that,there is no such technique which gives you result directly and in easy manner. According to ASME (The American Society of Mechanical Engineering), the device called Indentation Devices Imitating  Palpation, this device work on Herts contact theory, to evaluate indentations of thin tissues. The measurement result and concept is elasticity of human skin. You can see the full report of this topic of skin at ASME website.

According to NCBT, piezoelectric tactile sensor and load cell could measure softness.




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What are the seven fundamental units of Measurement?

centimeters length measure measurement
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We measure some physical or non-physical quantity by the mean of some output results. This output results express in some units. For example, we usually measure the length in millimeter or meter or kilometer.


But in a standard manner, every individual type of measurement express in unique fundamental unit. According to SI standard,we have seven basic fundamental units of seven basic measurement type. This type is expressed follows

1. Mass –

The basic fundamental unit of mass is “Kg”. We also measure mass in Gram, Pound, Metric ton, Stone, Micro gram, Carat etc. Some basic relation between units are

Relation between Units of Mass

1 centigrams (cg)

10 milligrams (mg)

100 milligrams

10 centigrams

1 decigrams (dg)

10 centigrams

10 decigrams

1 gram (g)

1000 milligrams

10 decigrams

1 dekagrams (dag)

10 grams

10 dekagrams

100 grams

10 dekagrams

1 hectogram (hg)

10 hectograms

1 kilogram (kg)

10 hectograms

1000 grams

2. Time –

The basic fundamental unit of Time is “Sec(s)”. We also express time in seconds, minutes, hours, days, weeks,years etc. Some basic relation between units are

Relation between Units of Time

1 minute

60 seconds

1 Hour

60 minutes or 3600 seconds

1 Day

24 Hours or 86,400 seconds

1 Week

7 days, or 604,800 seconds

3. Electric Current –

The basic fundamental unit of Electric Current is “Ampere(A)”. Some basic Electrical & electronic units are –

Electrical & Electronic Units

Electric current (I)


Volt (V)

Voltage (V)

Ohm (Ω)

Resistance (R)


Electric power (P)

4. Amount of Substance –

Amount of Substance is a dimensionless expression of the number of particles in a particle or object. The basic fundamental unit of Amount of Substance is “Mole”. Amount of substance all called material quantity.

5. Illumination

The SI unit of Illumination is “Candela”. Candela is denoted by symbol ‘cd’. Some other units is lux, lumen etc.

6. Distance

The SI unit of Distance is “Meter”. Distance also measure in mm, cm, km, yard,inch, foot,feet etc. The relation between Units of Distance is listed below

Relation between Units of Distance

1 centimeter

10 millimeters

1 meter

100 centimeters or 1,000 millimeters

1 kilometer

1,000 meters

1 inch

2.54 centimeters or 25.4 millimeters

1 foot

30.48 centimeters or 12 inches

1 yard

0.91 meters or 3 feet

1 mile

1.6 kilometers

7. Temperature

The SI unit of temperature is “kelvin”, expressed as word “K”.The temperature 0 K is known as “absolute zero.”

We use two types of scale in measuring temperature that is –

1.Relative scales [Fahrenheit (°F) and Celsius (°C)]

2. Absolute scales [Rankine (°R) and Kelvin (K)].

The relation between above two is described by follow relations –

F = 1.8C + 32

C = (F-32)/1.8

R= F+ 460

K=C + 273