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What would one use a strain gauge for?
Like the name suggests, a strain gauge is a device used to measure the strain of an object. The devices electrical resistance varies in proportion to the amount of strain on the device.
What is the difference between transistor and transformer?
A transistor in the right circuit, contributes a POWER GAIN by taking energy from an external power supply. A transformer actually has losses but is primarily used for Impedance Matching. This is very useful in establishing the most efficient arrangements for transmitting power from the source to the load. Impedance matching is an important function of all power transfer systems.
The advantage of a semiconductor strain gauge over the normal strain gauge is that?
it is more sensitive small gauge size low hysteresis
What is electric strain energy?
Probably the commonest example of electrical strain energy, is the charge stored on a capacitor. This energy is stored by straining the dielectric, and this is how the energy is stored. Similarly, there are a family of natural materials in which an applied strain will result in an electrical charge manifesting on two of the surfaces. Ordinary quartz is the commonest material exhibiting this behavior to a significant level, but many synthetic materials have been developed to perform well. One application of these is as piezo-electric drivers for cutting tools. Another everyday application is in the 'piezo' crystal used in gas appliances as an igniter.
What sort of structure does the spectrum of a pulse train have?
A pulse strain has a structure called a frequency comb. This is a spectrum that has a series of discrete and equally spaced elements.
Is photo voltaic cell is an active transducer?
A photovoltaic cell is an active transducer. This is commonly referred to as a strain gauge or simply known as a solar panel.
Whether strain gauge is an active transducer?
Yes.it is an active transducer.
What is the difference between a passive transducer and an active transducer?
Passive transducers - require an external power to operate, and theoutput is a measure of some variation in passive components (e.g. resistance orcapacitance)Examples of passive transducer :-Slide-wire resistor▫ Resistance strain gauge▫ Differential transformerActive Transducers - Self generating type - do not require an external power,and produce an analog voltage or current when stimulated by some physical form of energy.▫ Thermocouple▫ Photovoltaic cell▫ Moving coil generator
What does the term load cell mean?
A load cell is a transducer which converts force into a measurable electrical output. Although there are many varieties of load cells, strain gage based load cells are the most commonly used type.
What is princple of trasducer?
Many force transducers employ an elastic load-bearing element or combination of elements. Application of force to the elastic element causes it to deflect and this deflection is then sensed by a secondary transducer which converts it into a measurable output. The output may be in the form of electrical signal as in strain gauge and linear variable differential transducer (LVDT) type load cells or mechanical indications as in proving rings and spring balances. Such transducers are known generically as elastic devices, and form the bulk of all commonly used force transducers. There are a number of different elastic transducer elements but generally they consist of circular rings, cylinders or beams.The fundamental nature of elastic devices is illustrated opposite where, in this case, the elastic element is a circular cylinder made of a metal such as steel. The force is applied to the end of the cylinder and the deformation is measured as the difference between the uncompressed and compressed length. The cylinder also expands outwards as it is compressed, the ratio of outward expansion to longitudinal compression being determined by the nature of the material (through Poisson's ratio). The force may also be applied such that the device is in tension, rather than compression, and in that case the distortion is simply reversed.All elastic devices share this common basis, but the method of measuring the distortion of the elastic element varies considerably. The most frequent method is to make measurements of the longitudinal and lateral strain, and when this is undertaken by electrical resistance strain gauges such a transducer is known as a strain gauge load cell. These are the most common commercially available type of force transducer and are described, with many others, under types of force transducer with a separate page summarising their
Difference between analog and digital transducer?
Analog transducers convert the input quantity into an analog output which is a continuous function of time. E.g.-L.V.D.T,Thermocouple, Strain guageDigital transducers convert the input quantity into an electrical output which is in the form of pulses.
Are passive 3D TV glasses the ones that are known for the bad side effects?
No, the active 3D glasses are very popular for flickering and causing eye strain.
What planets and moons have volcanism?
venus - active volcanos injecting sulfate into atmosphere, heat from radioactive decayearth - active volcanos, heat from radioactive decaymars - extinct volcanos, no activity in milllion of years, heat from radioactive decayio - active volcanos, heat from mechanical strain from orbit shapeThere are probably others.
Where are osteoclasts most active?
Osteoclasts are most active in areas of bone that are actively being remodeled, such as at sites of bone growth, repair, or remodeling due to stress or strain. They are particularly active in the regions of bone surfaces that require resorption to maintain bone structure and respond to mechanical loading.
What is the difference between the sensor and the transducer?
In the general case, a sensor is the complete assembly required to detect and communicate a particular event, while a transducer is the element within that assembly which accomplishes only the detection of the event. At the risk of getting too abstract, a transducer converts an input to an output that can be exploited to accomplish the sensing mission. For example, a pressure sensor may use a diaphragm and/or strain gage to "detect" pressure differential across the diaphragm, but he complete sensor will additionally consist of a display element and the electronics required to energize and condition the output of the detecting transducer, as well as the elements required to house and drive the display feature. A compass is a simple sensor of magnetic north, wherein the magnetic element in the compass is the transducer or "north detector" and the needle, housing and compass face comprise the remainder of the "north sensor". In special cases, a sensor and a transducer can be the same. For example, a bi-metallic spring element can both detect temperature change, and may well be the entire sensor if a pointer is attached to the bi-metalic spring.
The s strain and the r strain of S pneumoniae are different in that?
The S strain produces a capsule but the R strain does not
What are the three types of strain?
The three types of strain are tensile strain, compressive strain, and shear strain. Tensile strain occurs when an object is stretched, compressive strain occurs when an object is compressed, and shear strain occurs when two parts of an object slide past each other in opposite directions.
