The amount of radiation emitted by an object increases with temperature, therefore thermography allows one to see variations in temperature pattern. When it is observed by using thermography equipments like thermal imaging camera, warm objects can be detected easily against cooler environment. Humans and other worm blooded animals and other living beings become visible easily against the environment, day or night.so thermography is largely useful for military and other users of surveillance cameras etc. Thermogram of a cat The above figure shows the effect of infrared radiations produced by the Cat. physiological changes in living being and other warm-blooded animals can also be monitored with thermal imaging during clinical diagnostics.
Sensors Two sensors are used in this health monitoring system one is pulse rate sensor and other is temperature sensor. A pulse rate sensor is used in order to check the heart rate of patient as a clinical data by using TCRT 1000 sensor. This sensor is based on IR technology. IR (TRCT1000) sensors are used in this thesis work for detecting the pulses of at the tip of the finger. It is a reflective type IR sensor which is working on 950nm range of light.
They observe the temperature of patients perpetually and maintain a record of it. The record will be saved within the tablet within the laptop. Within the planned work includes a patient will management the room devices like fan, light and TV from the bed itself by using android primarily based portable through the
The concern towards human welfare has created the needs for a rapid, continuous, no invasive sensor arrangement of essential signs. Particularly non-invasive and non-restraining frameworks are required, since they could monitor health status over a long period. Pressure sensor & Heart beat sensors are used to measure the vital signs. 1.1 INTRODUCTION Blood pressure measurement is actually the force of blood against the walls of arteries. Blood pressure is shown as 2 numbers the systolic pressure (as the heart pulsates) over the diastolic pressure (as the heart relaxes between heart beats).
The thermocouples used in the experimental setup are T type thermocouples. The radiators wall temperature is measured using these thermocouples. Flow meter is also included in the setup to measure and control the motion. Here a vibrator heater is used to replicate the heat emission of any automotive engine. A DC power supply is used to run the fan instead of a car battery.
IR SENSORS An infrared sensor is an electronic instrument which is used to sense certain characteristics of its surroundings by either emitting and/or detecting infrared radiation. Infrared sensors are also capable of measuring the heat being emitted by an object and detecting motion. Infrared waves are not visible to the human eye. In the electromagnetic spectrum, infrared radiation can be found between the visible and microwave regions. The infrared waves typically have wavelengths between 0.75 and 1000µm.
Electronic senses to touch us all Dr. S. S. Verma, Department of Physics, S.L.I.E.T., Longowal, Distt.-Sangrur (Punjab)-148106. Development and use of electronic devices from day to day life activities of human to its industrial & business applications have already revolutionized our world. Besides, electronic devices/sensors are being developed to work at par with the functions of human sense organs. Human has in general five sense qualities like touch, taste, smell, hear, vision and the whole actions of human body are controlled on the basis of electric signals through their respective body parts as: skin, tongue, nose, ear and eye. Electronic development has progressed well to replicate these sense functions with electronic devices/sensors called: e-skin, e-tongue, e-nose, hearing aids and electronic-eye.
2.2.8 Pressure Sensor A pressure sensor also known as pressure transducer is used to measure pressure typically of gases or liquids. It converts pressure into an analog electrical signal such as a voltage output or current output which can easily be measured. Pressure sensors either convert the pressure into mechanical movement or into an electrical output. Complete gauges not only sense the pressure but indicate them on a dial or scale. Mechanical movement is produced with the following elements.
In our current time different techniques are used to analyse and improve the properties of different elements and materials in order to improve day to day uses that will help better the environment and the quality of life or to improve the economy. One of these techniques is thermo gravimetric analysis this analytical technique measures the rate of change in mass of a material as a function of time or temperature in a controlled environment, the measurements can be used to determine the composition of the material and its thermal properties as the endothermic and exothermic reactions occur when the material is heated therefore determining the mass loss or gain of the material due to oxidation, decomposition or dehydration. As the discovery
OBJECTIVE 1. To learn the ways to perform electrical safety test on medical devices. INTRODUCTION Medical devices are referred to a wide range of instrument which important for the diagnostic, monitoring and therapeutic of patients. Medical devices can be as simple as tongue depressors or as complicated as haemodialysis machines. Medical device also can be categorized in to electrical and non-electrical devices.