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What is the signal span of an instrument with an output range of 4-20 mA and an input range of 0-200 psi?
This question is using two instrumentation terms which are often incorrectly used interchangeably. The range of an instrument is the measurement of which it is capable and the span is the measurement for which it is calibrated. The span can equal the range or be less than the range. Whatever span you have calibrated the transmitter to will be represented by the 4-20ma output.
In this case, if the instrument has a measurement range of 200psi, you could adjust the span for 200 psi, but it would corrspond with the maximum range of 200psi, possibly introducing inaccuracies when operating near the end of the range. It would be preferable to select a device with a range of 250psi and then adjust the span so that 200 psi causes a full scale output of 20ma. This is a span of 80% of the range. (200/250)
The output of the transmitter is selected during design of a certain range which will be compatible with the other equipment in the loop. Standards are 4-20ma, 10-50ma, 0-10v and many others.
Standard instrument design procedures will normally try to select an input range that will cause the majority of the normal operation measurements to fall within 20-80% of the range.
Absolutely correct !
Note concerning range and span:
The range of any type of measuring instrument or device is determined by its physical limitations and so the design and construction of it determines the operational application limits and the aimed accuracy. For latter reason the selection of an instrument depends on both factors. The range is limited by the lowest and highest value that a device is adjusted to measure while the adjusted span is equal or smaller than the range. Note that the accuracy is only established by the range, not the span !
What else can I help you with?
What is the range of the sine function?
The domain (input) is all possible angles. The range (output) is -1 to +1.
What is the domain and range of the sine function y is equal to 2 sin x?
Domain (input or 'x' values): -∞ < x < ∞.Range (output or 'y' values): -2 ≤ y ≤ 2.
What is function and domain and range and Derivatives?
A function is a mapping or relationship from a set of inputs to a set of outputs such that for each input there is at most one output. The set of inputs is the domain. The set of outputs is the codomain or range. Derivatives are a characteristic of continuous functions. The derivative of a function at any point measures the rate of change in the output for very tiny changes in input, measured at that point.
Could this ever be the rule of a function For input x the output is the number whose square is x If so what is its domain and range?
Yes, the domain(input) would be all natural numbers (numbers greater or equal to zero). The range (output) would be all real numbers. -- Not only natural numbers would be considered part of this domain, all negative numbers are also reasonable inputs to this function, as any negative number multiplied by itself would produce a positive number..... The output (range) would therefore be all positive real numbers......
What is the collection of all output values?
Collection of all output values is called the range.
What is an input or output of a continuosly variable signal within a designated range?
The input or output of a continuously variable signal within a designated range is a sampled data or a feedback system. This accepts limited analog signal and encodes.
Can you improve voltage level in the range of millivolt into a 15volt?
A voltage amplifier (high input and output impedances) with a gain of 83.5 dB will amplify a signal of 1 millivolt to an output of 15 volts.
What is quantization range?
Quantization range refers to the range of values that can be represented by a quantization process. In digital signal processing, quantization is the process of mapping input values to a discrete set of output values. The quantization range determines the precision and accuracy of the quantization process.
What is signal signal conditioning and why do you need it?
In electronics, signal conditioning means manipulating an analogue signal in such a way that it meets the requirements of the next stage for further processing. Most common use is in analog-to-digital converters.In control engineering applications, it is common to have a sensing stage (which consists of a sensor), a signal conditioning stage (where usually amplification of the signal is done) and a processing stage (normally carried out by an ADC and a micro-controller). Operational amplifiers (op-amps) are commonly employed to carry out the amplification of the signal in the signal conditioning stage.So, a signal conditioning circuit includes a logarithmic signal compression circuit for compressing wide dynamic range input signals to a dynamic range which is a predetermined portion of the dynamic range of an output utilization apparatus. There is provided, additionally, means for detecting the presence of the high level signals and superimposing a signal representative of the high level signals on the compressed signals to provide a combined output signal which, while compressed to the range of the output utilization apparatus, contains definable low level and high level signals from a wide dynamic range input signal.
What is a limiting circuit?
A limiting circuit is a circuit that restricts the output signal within a certain range by clamping or cutting off any signal that exceeds the set limit. It is commonly used in electronic devices to protect components from overvoltage or to control signal amplitudes.
What is the range of the sine function?
The domain (input) is all possible angles. The range (output) is -1 to +1.
How do you describe the domain and range of a function?
The domain is the set of values of the input while the range is the set of output values.
Why is the cascaded range called the cascade certain?
The term "cascade" refers to the process of connecting multiple ranges in series, where the output range of one stage becomes the input range of the next stage in a cascading fashion. This technique helps improve overall signal handling and dynamic range by distributing the gain across multiple stages instead of relying on a single stage to amplify the signal.
What is meant by the analytical working range of an instrument?
Each instrument used in analytical chemistry has a useful working range. This is the range of concentration (or mass) that can be adequately determined by the instrument, where the instrument provides a useful signal that can be related to the concentration of the analyte .All instruments have an upper and a lower working limit. Concentrations below the working limit do not provide enough signal to be useful, and concentrations above the working limit provide too much signal to be useful. When calibrating an instrument for use, the experimenter must be familiar with both the lower and upper working range of the chosen instrument.
What are the Input and output devices in CG?
Computer Graphics can use a wide range of input devices such as Digital Camera, Keyboard, multi button mouse. Output devices can include DVD, rendering software packages
Will any wireless head set work on this DVD player?
Most wireless headsets plug into a headset output connector for the input signal. On another point most of these headsets are range poor. A constant dependable signal might be as little as 10 to 20 feet, regardless of what is printed on the box.
What is the difference between range and sensitivity?
Sensitivity describes the smallest change an instrument can detect. Range describes the largest change an instrument can detect.
