Calculator catalog
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Found 39 calculators
Scale 4-20 mA signal to value
Converts a nominal 4-20 mA current signal to a process value over a minimum-maximum range.
Scale 0-10 V signal to value
Converts a nominal 0-10 V voltage signal to a process value over a minimum-maximum range.
Scale value to 4-20 mA
Converts a process value to a nominal 4-20 mA signal over a minimum-maximum range.
Scale value to 0-10 V
Converts a process value to a nominal 0-10 V signal over a minimum-maximum range.
Scale 0-20 mA signal to value
Converts a nominal 0-20 mA current signal to a process value over a minimum-maximum range.
Analog signal percent of range
Calculates signal position relative to a supplied range; values outside the nominal range are not blocked.
ADC voltage from counts
Calculates ADC input voltage from counts, bit resolution, and reference voltage.
ADC voltage resolution
Calculates the smallest ADC voltage step from reference voltage and bit count.
Measurement error percent
Calculates signed percent error from measured value and true value.
Encoder angle resolution
Calculates helper encoder angle resolution in degrees per pulse.
Encoder linear resolution
Calculates counts per output revolution and linear travel per count for a wheel diameter.
First-order response value
Calculates the exponential response value of a first-order process for a given time and time constant.
Time constant from the 63.2% point
Uses the practical approximation that the time to reach 63.2% of the response is the time constant tau.
Control gain
Calculates simple gain as output change divided by input change.
Simple parallel PID output
Calculates a helper parallel-form PID output from the supplied error terms.
ki from integral time
Calculates helper integral gain ki from kp and integral time.
kd from derivative time
Calculates helper derivative gain kd from kp and derivative time.
Overshoot from damping ratio
Estimates helper percent overshoot of a second-order system from damping ratio.
Second-order settling time
Estimates helper second-order settling time from damping ratio and natural frequency.
Ziegler-Nichols closed-loop tuning
Calculates indicative P, PI or PID settings from the closed-loop method using Ku and Pu.
Second-order parameters from overshoot and peak time
Calculates zeta and natural frequency from fractional overshoot and first peak time.
Sensor sensitivity
Calculates sensitivity as output signal change divided by input change.
Simple PT100 RTD temperature
Calculates temperature from RTD resistance using a simplified linear PT100 model.
Sensor span
Calculates span as upper range value minus lower range value.
Sensor accuracy percent of span
Calculates helper absolute error from accuracy given as percent of span.
Load cell force from mV/V
Calculates helper force from an mV/V signal using supplied rated signal and rated force.
Synchronous speed from frequency and poles
Calculates motor synchronous speed from supply frequency and pole count.
Motor slip speed
Calculates slip speed as synchronous speed minus rotor speed.
VFD frequency from speed
Calculates VFD command frequency from synchronous speed and pole count.
Stepper steps per mm
Calculates helper steps per millimeter from motor steps, microsteps, and screw lead.
Ball screw linear force from torque
Calculates helper idealized ball screw linear force from torque, efficiency, and lead.
Reflected inertia through gearbox
Calculates helper load inertia reflected through the square of the gear ratio.
Servo reflected inertia
Calculates load inertia reflected through gear ratio and the ratio to motor inertia.
Servo RMS torque
Calculates RMS torque from torque and segment-time arrays of the same length.
Motion required torque
Adds acceleration torque, load torque and friction torque for a simple axis balance.
Simple pneumatic cylinder force
Calculates ideal pneumatic cylinder force from pressure and effective area.
Pneumatic air volume per stroke
Calculates geometric air volume per stroke from piston area and stroke length.
Simple pneumatic cycle time
Calculates helper travel time for a given stroke at constant speed.
FFT and spectrum analyzer
Multi-channel one-sided peak-amplitude spectra with windows, detrending, coherent-gain correction and largest-bin ranking.