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A robot's effectiveness depends on how well it can interact with a human controller. The communication between the human and the robot is made possible through the operator interface, also known as a Human-Robot Interface.


A robot needs to be able to navigate about its surroundings to do a task. This movement is referred to as locomotion in robotics. Artificial mobility may be done in a variety of methods. The propulsion mechanisms used by autonomous drones include propellers.


Any good robot must be capable of interacting with its surroundings; manipulators and signaling pathways play a role in this. These are the components of the robot that provide it the ability to pick up and move objects, as well as modify objects that are not included in the system.

Starter Kit

Robotics successfully combines design, coding, creativity, and problem-solving, and the result is an engaging toy that your child can engage with. The consequence of all their labor will be in their control, and they may keep adjusting and tinkering with the code to attempt other results.

Robotiq Kit

Robotics can be a fantastic exercise for fostering creativity and an inquiring nature in addition to helping students build critical problem-solving abilities. Robotics provides your child with a toolset and pushes them to create something entirely new, just like LEGO and Meccano do.

ReFlex Hand

Robots utilize sensors to collect information. The robot may use this information to determine its actual location, where it has to travel, and what kind of impediments are in its way. Sensors gather data to aid the robot in determining how to respond to items it comes into contact with.

How it Works

Today’s sophisticated programming enables robotic systems to learn from changes in their surroundings and adapt, which is a truly amazing feat of engineering.
Tactile Sensor-Enabled Gripping :
How it works
A tactile sensor is a tool that collects data via interactions with its surroundings. The biological sense of cutaneous
touch, which is capable of recognizing inputs coming from stimulations, temperature,
and discomfort, serves as the basis for most tactile sensors.
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Sensors for Robots

Review of Tactile Sensors for Robots

What image does the word “robot” conjure up for you? Do you envision a metallic machine? Robots are adaptable machines, demonstrated by the enormous range of their forms and capabilities. Fortunately, it appears more likely that robots would focus on performing dangerous or repetitive duties rather than acquiring absolute executive control. Let’s examine robotics and its tactile sensors.

Tactile sensors in robots

Tactile sensors in robots

An instrument known as a tactile sensor detects the forces produced by physical interactions with the environment. Humans model their sense of touch after the biological sensation of touch that is triggered by mechanical compression and stimulation of the body and skin. Single touch sensors detect various details like the shape, size, and texture of an object during contact with its surface, and they then send an electronic signal to a nearby controller. The controller then gauges the object’s actual dimensions, form, and weight.

Tactile Sensor Types

Force/Torque Sensor

In order to provide the input for force control, force/torque sensors are employed in conjunction with a tactile array. These kinds of sensors have the same range of load sensing as a skin sensor and the proximal link of a manipulator.

Dynamic Sensor

Smaller accelerometers known as dynamic sensors are located on the robotic finger’s skin or on the finger strips. One or two skin accelerometers are sufficient for a whole finger because the overall function is similar to that of human Pacinian corpuscles and they have correspondingly large respective fields.

Heating Sensor

Although certain thermal sensors are utilized in robotics and are crucial to the human ability to determine the elements of the objects manufactured. The process of thermal sensing entails finding heat variations and gradients in the skin that correlate to an object’s temperature and thermal conductivity.

Uses of tactile sensors

Tactile sensors are frequently used in robotic fingers and hands. Robots need sensory equipment that is functionally similar to a human’s tactile capacity if they are to handle tasks that need accuracy, flexibility, or interaction with strange objects. For use with robots, tactile sensors play a major role.  When the robot starts to grasp an object, tactile sensors can supplement visual systems by adding further information. Eyesight is no longer appropriate at this point because vision alone cannot determine the mechanical characteristics of the object.

The importance of tactile sensors in robotic applications 

The fact that conventional robotic systems cannot perform approximately 95% of all manual tasks due to the dexterity and flexibility of the fingers is one of the biggest problems facing the robotics industry today. Extreme dexterity is needed to prepare a drink, fold a napkin, clean a chandelier, etc. Robots must be able to grasp objects with more dexterity and without crushing delicate objects, which requires precisely monitoring and adjusting the robot’s grasping force. Despite being trustworthy sensors for measuring force, load cells have typically been constrained by their heavy design.

Tactile Sensors

Recent Advances In Wearable Tactile Sensors

Tactile sensors are also called touch sensors and are sensitive to factors like temperature, pressure, and touch. They are designed to collect data from humans and surroundings and generate the necessary information using measuring instruments attached to them. Over the last few years, these tactile sensors have shown immense improvement and use in various industries.

Wearable tactile sensors are wearable devices designed to accommodate hard surfaces without causing damage to the device. Due to their structure and their application, they are primarily used in the Internet Of Things.

What are tactile sensors?

tactile sensors

Tactile sensors are novel data acquisition devices designed to detect the slightest of external factors like touch, pressure, vibration, temperature, etc. The information acquired can be translated into intelligent systems for analysis. Wearable tactile sensors have a higher advantage, as opposed to the regular sensors available in the market. Their rigidity and solid form prevent free movement and are fragile to external pressure. Hence, the consumers might not have to compromise on the following:

  • Robustness
  • Durability
  • Rigidity

Many scientists and researchers in biomedical engineering addressed these challenges. They created an alternative sensor device that works on the liquid-based pressure sensing method, which is highly used in most tactile sensor devices.

Characteristics of wearable tactile sensors

  • The use of diverse and user-friendly functional materials
  • The sensitive sensing mechanism
  • Used in diverse applications
  • Used for various performance optimizing strategies
  • Employs more than one sensing options
  • Integration of the device to different other systems

Liquid-based pressure sensor

Most wearable tactile sensor devices today follow liquid-based pressure sensing technology. The micro-fields present in the sensors are fabricated on surfaces like silicone rubber that are incredibly flexible, and it also uses nanomaterial suspensions that are non-corrosive. For instance, graphene oxide is a good example which is also used to represent a pressure sensing element that recognizes even the slightest force applied.

These devices proved their versatility in the invention when they were subjected to various tests, including pressure, stretching, and bending. They were also subjected to multiple abusive forces like being placed under cars etc., and still proved their quality when unharmed.

The idea of wearables

Although tactile sensors were already in use in everyday household items, robotics, and biomedical industries, the introduction of wearables has opened a new spectrum of markets. Tactile sensor wearables are predominantly used in the biomedical industry, where the device may be subjected to human touch and skin.

Advantages of tactile sensor wearables

  • Due to the gap in the market for wearables, the introduction of tactile sensors has also opened a new arena for users.
  • Since these devices are flexible and durable, they are used mainly by the general public to monitor body movements.
  • It is used in healthcare industries to micro-monitor patients in the hospital.
Tactile Sensor

Types of Tactile Sensor and Its Working Principle

Tactile sensors are devices that are sensitive to touch, and they collect and document information when there is contact with objects in the environment. In general, tactile translates to “touch.” Hence a tactile sensor is also termed a touch sensor.

What are tactile sensors?

Tactile or touch sensors measure the intensity of touch with particular objects in the environment. They work when the sensor of a device comes close to a human or an object. They are designed to behave like switches when they are touched. Due to their inexpensive cost and simple design, mechanical switches often replace them.

There are three different types of touch sensors that are sensitive to contact, pressure, and force. They are:

  • Force sensor
  • Dynamic sensor
  • Thermal sensor

Operating principle of touch sensors

The operating principle of tactile sensors is similar to that of mechanical switches. When the sensors come close to force, touch, or temperature, they behave like closed switches, and when the pressure is released, they behave like open switches. Different types of tactile sensors mainly function on the following principles:

  • Piezoelectricity: When the magnitude of voltage generated during the deformation of crystal lattice changes, it changes the resistance in sensors.
  • Capacitance: The pressure applied on the two conductive plates changes, and the capacitance in the parallel plate capacitors changes directly.
  • Piezo- resistivity: The deformation of shape caused due to an applied force changes the resistance of a piezoresistivity sensor.

Working with a capacitive touch sensor

Capacitive tactile sensors are the simplest form of sensors. They consist of two metal plates that act as conductors and an insulator. The electrode at the end represents one of the conductor plates, and the second conductor plate is represented by the environment and a conductive object (human finger). Capacitance is directly proportional to surface area and inversely proportional to distance.

On one end, the sensor (electrode) is connected to a measuring device, and the capacitance is measured periodically. When an external object like a human finger approaches the sensor, the capacitance will increase, and the data is measured by a measuring device which converts it to a trigger signal.

touch sensor

Working with a resistive touch sensor

These sensors have a much longer duration than the capacitive sensors and work with non-conducting materials like plastic, stylus, etc. This sensor comprises two layers covered in the film, separated by spacer dots. The conductive layer is covered with a transparent metal layer and is subjected to voltage.

When an external pressure or force is applied on the other surface, the two layers come in contact and create a voltage drop, which is recorded in the measuring instrument. These types of sensors are used in harsh environments, and their response time is significantly greater. Hence they are being replaced by capacitive sensors.

Uses of tactile sensors

  • Everyday household items
  • Performance testing of various applications
  • Medical imaging
  • Robotics
Robotics Trends

Biggest Robotics Trends & Predictions for 2022

Robotics, a combination of engineering, technology, and science, will be a drastically emerging field in 2022. Robotics is an upcoming technology used to design robots for our tasks. Over the last five years, many companies and enterprises have incorporated robotics as an indispensable tool in their companies. There are many advantages of using robotics, and one advantage of robotics is automation, which is used by almost all industries, forcing companies to reshuffle their priorities.

Read below if you wish to know about the biggest trends in robotics, introduced in 2022, that will influence and change the technological spectrum over the next few years.

Delivery robots

Delivery robots

The pandemic has increased home delivery awareness, creating a demand in the market for delivery robots. Over the years, the market for this trend is expected to rise. And by 2016, it is anticipated to become a million-dollar business.


Cobots are short-terms for collaborative bots, formed by the combined advancement in robotics and electrical engineering. The cobots are generally designed to work with humans without worrying about paycheque or insurance. According to estimations, cobots will also take over some work fields with unpleasant conditions, and Cobots will also significantly improve the estimates in programmable software.

Artificial intelligence robots

AI is rapidly developing and has been implemented in various industries. Implementing AI and machine learning in robotics will improve many sectors of businesses, like agriculture, supply chain management, healthcare, automotive, etc.

Robot As a Service

Thanks to the emerging Everything-As-A-Service trend, that will help many companies and industries not just to afford the implementation of robotics but also to retain them. Enterprises can implement the RaaS model without the hassle of handling ownership, and it is determined to work similarly to the SaaS model. By using this model, maintaining, monitoring, and acquisition of goods and products become hassle-free.

Decrease in carbon footprint

The increased carbon footprint has more significant disadvantages to the earth than we can imagine. However, using robots in different industries can help reduce it significantly. Due to their precision and control, robots will help reduce machinery rejections and get work done effectively. They are also used to manufacture other renewable energy devices like Photo Voltaic cells and hydrogen fuel cells.

Autonomus Mobile robots

Autonomus Mobile robots

E-commerce shopping is rising, and many industries face setbacks like warehouse shortages, labor shortages, etc. Hence, the instruction of ARMs can help reduce their problems significantly and improve sales. In 2022, ARM is now a 6 billion dollar industry and is anticipated to grow further.


The COIV-19 pandemic has taught industries the easy way out. The need for robots is more significant than ever, and it has also improved the human ability to execute different tasks. While many robotic trends are already in use, many are still yet to join the party in the coming decades.