Types of pressure measurements[ edit ] silicon piezoresistive pressure sensors Pressure sensors can be classified in terms of pressure ranges they measure, temperature ranges of operation, and most importantly the type of pressure they measure. Pressure sensors are variously named according to their purpose, but the same technology may be used under different names. Absolute pressure sensor This sensor measures the pressure relative to perfect vacuum.
Instrumentation is the art and science of measuring and controlling different variables such as flow, level, temperature, angle, displacement etc. A basic instrumentation system consists of various devices.
One of these various devices is a transducer. A transducer plays a very important role in any instrumentation system. An electrical transducer is a device which is capable of converting the physical quantity into a proportional electrical quantity such as voltage or electric current.
Hence it converts any quantity to be measured into usable electrical signal. This physical quantity which is to be measured can be pressure, level, temperature, displacement etc. The output which is obtained from the transducer is in the electrical form and is equivalent to the measured quantity.
For example, a temperature transducer will convert temperature to an equivalent electrical potential.
This output signal can be used to control the physical quantity or display it. Note that any device which is able convert one form of energy into another form is called as a transducer.
For example, even a speaker can be called as a transducer as it converts electrical signal to pressure waves sound. But an electrical transducer will convert a physical quantity to an electrical one.
Types of Transducer There are of many different types of transducer, they can be classified based on various criteria as: Types of Transducer based on Quantity to be Measured Temperature transducers e.Industrial Instrumentation Questions & Answers for Freshers Measurement of Force, Torque & Speed What is a Stroboscope?
The stroboscope is a simple, portable manually operated device which may be used for measurement of periodic or rotary motions. A stroboscope having a scale that reads in flashes per minute or in revolutions per .
LORD MicroStrain® displacement/position sensors are known as DVRTs (Differential Variable Reluctance Transducers) which are half-bridge LVDTs (Linear Variable Differential Transformers). PRODUCT DESCRIPTION The AD is a complete, monolithic Linear Variable Differen-tial Transformer (LVDT) signal conditioning subsystem.
It is used in conjunction with LVDTs to convert transducer mechan-. To summarize, “The LVDT closely models an ideal zeroth-order displacement sensor structure at low frequency, where the output is a direct and linear function of the input.
A pressure sensor is a device for pressure measurement of gases or vetconnexx.comre is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area.
A pressure sensor usually acts as a transducer; it generates a signal as a function of the pressure imposed. For the purposes of this article, such a signal is electrical. The XLT (DC/DC LVDT - Linear Variable Displacement Transducer) is a compact long life linear position sensor housed in a stainless steel body.