Testing Tools And Equipment

testing tools and equipment

Testing tools and equipment play an important role in various industries and applications. Testing tools and equipment are essential for quality assurance processes. They help ensure that products, materials, or systems meet specified standards and adhere to regulations. In construction, manufacturing, and healthcare industries, testing tools are vital for evaluating the safety of equipment and materials.

They help engineers and designers assess prototypes, identify weaknesses, and refine designs. Testing tools contribute to determining the reliability and durability of products, materials, or systems.

The equipment that is used to test electrical appliances is called testing equipment. some equipment which is used to measure electrical quantities is called instruments. The 15 most used tools and instruments including

Screwdriver
Electrician plier
Phase tester
Hand drill machine
vernier Calliper
Feeler gauge
Bearing puller
Standard wire gauge
Electrical soldering iron
Test lamp
Mager
Hydrometer
Multimeter
Clamp-on meter
Oscilloscope

Screw Driver

A screwdriver is a hand tool designed for turning screws, consisting of a handle and a shaft ending in a flattened or cross-shaped tip. Screwdrivers come in various designs, but the most common types include flat-head (slotted) and Phillips-head. Flat-head screwdrivers have a single, flat blade, while Phillips-head screwdrivers have a cross-shaped tip.

The basic components of a screwdriver include the handle, shaft, and tip. The handle is designed for a comfortable grip, while the shaft extends to the tip, allowing the user to apply torque to turn screws.

Screwdrivers are made of materials such as steel or alloy for durability and strength. The handle may be made of plastic, rubber, or other materials to provide a comfortable and non-slip grip.

Types

Standard Screw Driver
Phillips Head Screw Driver
Offset Screw Driver

Standard Screw Driver

A standard screwdriver is a manual hand tool designed for turning screws. A standard screwdriver consists of three main parts - a handle, shaft, and tip. The handle provides a comfortable grip for the user, the shaft extends from the handle, and the tip is designed to fit into the head of a screw.

standard screwdriver

Phillips Head Screw Driver

Phillips head screwdriver is also called the cross-head screwdriver. This is used to open the crosshead slot screws.

Phillips screwdriver

Offset Screw Driver

An offset screwdriver is used in electrical where a standard screwdriver fails to open the screw as their name shows this is used in the offset places.

offset screwdriver

Electrician Plier

The tool which is used to hold, twist and drop the wire is called the Electrician plier. There are two parts one is the handle which is made with insulating material and the other is a metal jaw.

A metal jaw is used to hold the wire and the other part is used to cut the wire. Different pliers are available in different sizes 15cm,20cm,25cm, and 30cm.

Electrician Plier

Types of Electrician Plier

Long Nose Plier
Cutting Plier
Adjustable Plier
Diagonal Plier
Fastening Plier

Long Nose Plier

Long nose pliers are a special kind of tool with long, pointy tips. They're great for reaching into tight spots or grabbing small things. People often use them for tasks like bending, cutting, or holding onto tiny objects. The long, slim design helps you work precisely. They're handy in electronics, jewellery making, and many other jobs where you need to handle small stuff.

long nose plier

Cutting Plier

Cutting pliers, are known as wire cutters. They have sharp blades at the cutting edge that make it easy to snip through different thicknesses of wires. These pliers are useful for trimming electrical wires and cutting thin metal. Some cutting pliers have built-in wire strippers.

Cutting Plier
Adjustable Plier

An adjustable plier is a type of plier that can adjust as per requirements, called an adjustable plier. adjustable pliers are available in different sizes. mostly they are non-insulated.

Adjustable Plier

Diagonal Plier

A Diagonal plier is used to hold the wires in the switch and sockets. Diagonal pliers, also known as wire cutters or side cutters, are a type of hand tool used for cutting wires and other materials.

These pliers are commonly used in various applications, including electrical work, crafting, jewellery making, and general household tasks.

Diagonal plier
Fastening Plier

A fastening plier is also called a force open plier which means when we press the handle the face is open and when we release it's locked to a particular position.

Fastening Plier

Phase Tester

A phase tester is an important electrical tool that is used to detect the presence of current in the wire. A phase tester is also called a voltage tester. phase tester contains an electric element and a small neon lamp that is connected to the electrical clamp. Phase tester helps identify live wires avoiding electrical shocks and accidents.

Phase tester

Working Principle of Phase Tester

The basic working principle involves detecting the presence of voltage by measuring the electrical potential difference between two points in a circuit.

Parts of a Phase Tester

Probe or Sensor
Indicator
Power Source
Handle or Grip
Switch or Button
Casing

Phase tester parts

Hand Drill Machine

A hand drill machine, also known simply as a hand drill, is a portable tool used for drilling holes in various materials. The hole size is between 3mm to 10mm. we used a hand drill where electricity was not available.

It is a manual tool that relies on human power to rotate a drill bit and create holes.

Hand Drill Machine Parts

Chuck
Handle
Crank or Gear Mechanism
Frame or Body
Spindle
Depth Stop

Calliper

A calliper is used to measure the distance between two opposite sides of an object. we divide the calliper into two categories for measurements one is an internal calliper and another is an external calliper.

Parts of Calipers

Jaws
Scale
Vernier Scale
Dial or Digital Display
Locking Screw
Depth Gauge

Feeler Gauge

we used a feeler gauge to measure the clearance between the two points. we also called feeler stock. this is used where moments of mechanical parts appear is consist of metal thin slots. the size of the min slot is 0.0015 inches in thickness and the max slot is 0.025 inches in thickness.

Bearing Puller

A bearing Puller is used to pull the bearing in the motor shaft. we also used to put out the motor cam and wheel. they consist of three moveable jaws and a long bolt. they are available in different sizes of 3inch, 4 inches,6 inches etc

Standard Wire Gauge

A standard wire gauge is used to determine the wires' size. this is a circular wire gauge made with steel material. the structure of a standard wire gauge is a circular plate with a hole in the centre.

The circumference of a standard wire gauge is made with different slots. every slot has a particular number that is defined by the size of the wire. in the standard wire gauge, the slot number is in direct relation to the area of the wire.

Electrical Soldering Iron

An electrical soldering iron is used to join the wires, joints at terminals etc. There are two parts of the soldering wire one is an insulating handle and another is the electrical heating element.

Electrical soldering wire is available in the market in different power sizes between 70 watts to 125 watts. in a special type of joint, we used a power soldering gun as compared to the electrical soldering iron. The power of the power soldering gun is between 150 watts to 250 watts.

Test Lamp

test lamp is used to detect the power in the test fuses, circuits and trace of wires. we also use the test lamp to check the voltage fluctuations. we used lamps of the size of 0 - 200watt.

Megger

Megger is a hand electrical generator that is used to check the polarity test, continuity test, leakage test, insulation resistance test, short circuit test, earth connection continuity test etc.

The basic principle of megger is electromagnetic attraction. Meggers generate a high voltage, typically in the range of 500 volts to several thousand volts, to stress the insulation and measure its resistance. Meggers can measure insulation resistance over a wide range, often from mega-ohms to tera-ohms.

Hydrometer

A hydrometer is a type of instrument that is used to check the specific gravity of lead-acid batteries. Hydrometers work on the principle of buoyancy. The instrument consists of a narrow graduated stem with a bulb or weighted base. The construction of a hydrometer is a rubber tube, floats, glass tube and rubber bulb.

Types of Hydrometer

Baume Hydrometer
Brix Hydrometer
Alcoholometer

Applications of Hydrometer

Brewing and Winemaking
Chemistry and Laboratory Work
Battery Testing
Oil and Petroleum Industry
Antifreeze Testing
Water Treatment
Chemical Analysis

Multi Meter

A multimeter is the most common instrument used to detect voltage, currents and resistance. the multimeter is a combination of an ampere meter, ohm meter and voltmeter. we also called the AVO meter.

The AVO is used to measure both supply AC, and DC.there are two types of a multimeter. one is an analogue multimeter and another is a digital multimeter

Clamp-on meter

A clamp-on ammeter is an instrument used to find out the current without connecting the clamp-on ammeter in the circuits. the other name for a clamp-on meter is tongue tester. the principle of clamp-on meter is based on electromagnetic induction. It is particularly useful for troubleshooting and maintenance in electrical systems.

Features of a clamp-on meter include

Current Measurement
Multimeter Functions
Digital Display
Auto-ranging
Safety

Applications of Clamp-on meter

Clamp-on Measure current in live circuits without disconnecting wires.
its also used to Identify and troubleshoot electrical faults.
Clamp-on analyzes current flow in motors and other machinery.
It also Detects abnormalities in electrical systems.
Clamp-on Measure current in HVAC systems.
Clamp-on meters are used to Monitor and analyze current waveforms to assess power quality.

Types of Clamp-on Meters

AC Clamp Meters
AC/DC Clamp Meters
True RMS (Root Mean Square) Clamp Meters
Mini Clamp Meters
Wireless Clamp Meters
Power Clamp Meters

Oscilloscope

An oscilloscope is an electronic test instrument used to analyze electrical signals over time. It displays voltage signals on a two-dimensional graph, where the vertical axis represents voltage and the horizontal axis represents time. This tool is widely used in electronics, telecommunications, physics, and engineering purposes. The waveform can represent a wide range of signals, including sinusoidal, square, triangular, and more.

Oscilloscopes have multiple input channels allowing users to compare different signals.

Applications of Oscilloscopes

it is used to Identify issues in electronic circuits.
It analyses the frequency, amplitude, and timing characteristics of signals.
oscilloscope Ensures the quality and performance of electronic components and systems.
oscilloscope helps with the design of electronic circuits.

Conclusions

In electrical engineering, the conclusion of the most utilized testing tools and equipment ensures precision and safety. Oscilloscopes are vital for visualizing and analyzing electrical signals.

Multimeters are used to measure voltage, current, and resistance. These tools, along with switches, GPIB interfaces, and source measurement units, form the backbone of electrical testing.

Frequently Asked Questions – FAQs

What is a digital multimeter used for?

A digital multimeter is a tool used for Measuring voltage, current, and resistance in electrical circuits.

What is a clamp meter used for?

A clamp meter is used to measure the electrical current flowing through a conductor without the need to disconnect or break the circuit.

What are the main functions of an oscilloscope?

The main functions of an oscilloscope include displaying and analyzing electrical waveforms, measuring voltage and time-related parameters, and capturing transient events.

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