Engineering & Electronics
207 tools · page 4 of 4
- Nyquist Sampling Rate Calculator Find the minimum sampling rate for a signal frequency. Nyquist Sampling Rate Calculator gives you the result instantly from a simple input.
- Pipe Flow Rate Calculator Calculate the volumetric flow rate through a pipe from its inner diameter and flow velocity.
- Poisson's Ratio Calculator Calculate Poisson's ratio of a material from its measured lateral strain and axial strain during a tensile or compressive test.
- Power Bank Charge Calculator Find out how many full phone or device charges a power bank really delivers, accounting for conversion losses.
- Principal Stresses Calculator (Mohr’s Circle) Calculate the major and minor principal stresses and the maximum shear stress from a 2D stress state (σx, σy, τxy) using Mohr’s circle. A staple of mechanics of materials and structural design.
- Pump Specific Speed Calculator Calculates a pump's specific speed (US Ns and metric nq) from speed, flow and head to indicate the impeller type.
- PWM to Voltage Calculator Calculate the average voltage of a PWM signal from its duty cycle. PWM to Voltage Calculator gives you the result instantly from a simple input.
- Roof Load Limit Calculator Find the remaining roof load allowance after subtracting roof rack and cargo weight.
- Rule of Mixtures Modulus Calculator Estimate composite elastic modulus using the Voigt upper bound and Reuss lower bound from fiber and matrix properties.
- Schmitt Trigger Thresholds Calculator Calculate the upper and lower switching thresholds and hysteresis of a non-inverting Schmitt trigger: VT = ±(R1/R2)·Vsat.
- Screw Lead and Pitch Calculator Calculate the lead of a screw thread from its pitch and number of starts — the axial distance the screw travels in one full revolution.
- Seismic Base Shear Calculator Computes the static equivalent lateral force base shear V = Cs·W from the design spectral acceleration, response factor and importance factor.
- Slenderness Ratio Calculator Calculate the slenderness ratio of a structural column from its effective length factor, unsupported length, and radius of gyration to assess buckling risk.
- Solar Battery Autonomy Calculator Find out how many days your solar battery bank can power your daily load.
- Solar Inverter Sizing Calculator Works out the inverter kW rating you need for a given solar array size and DC/AC ratio.
- Solar Panel Payback Calculator Find out how many years a solar panel system needs to pay for itself from your electricity savings.
- Solar Panel Payback Period Calculator Calculate how many years it takes to pay back a solar panel system from annual savings and maintenance costs — payback period = system cost ÷ (annual savings − annual maintenance).
- Solar Panel Tilt Angle Calculator Estimate the best fixed tilt angle for solar panels from your latitude and the season you want to optimize for.
- SPT N60 Correction Calculator Correct a measured Standard Penetration Test blow count to N60 using energy ratio, borehole, sampler, and rod-length corrections (N60 = N × (ER/60) × Cb × Cs × Cr).
- Thread Engagement Length Calculator Estimates the minimum thread engagement length so the tapped hole carries the full tensile strength of the bolt.
- Torque-Tension Conversion Calculator Calculate the tightening torque required to achieve a target bolt preload (clamp force) using the nut factor (K) method: T = K × D × F.
- Truss Method of Joints Calculator At a simple truss joint with one unknown member at angle θ, find the member force = load / sin(θ) and its horizontal component.
- Vibration Transmissibility Calculator Computes the transmissibility of an undamped vibration isolator: TR = 1/|1 − r²| with frequency ratio r = forcing/natural, and flags whether the mount isolates.
- Void Ratio Calculator Calculate the void ratio of a soil sample from its void and solid volumes, plus the corresponding porosity — essential geotechnical properties for soil mechanics and foundation engineering.
- Whirling Speed Calculator Estimates the critical whirling (whipping) speed of a rotating shaft from its static deflection, in rpm, rad/s and Hz.
- Window Function Coefficient Calculator Computes the tapering coefficients of common DSP window functions plus their coherent gain and equivalent noise bandwidth.
- Yagi Element Spacing Calculator Calculate the physical spacing between Yagi antenna elements as a fraction of the wavelength for a given frequency.