Vibration Sensor Output Scaling Worksheet
Calculate a nominal voltage-output sensor signal or a charge-output sensor plus charge-converter signal. The worksheet keeps pC and mV separate, requires the calibration context and does not invent dynamic range, clipping limits or usable bandwidth.
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Equations and dimensional boundary
These are general linear scaling relations, not calibration procedures or formulas issued by ISO 16063.
U is the exact mechanical unit written in the record. The calculation does not convert between g and m/s2, or between velocity/displacement/acceleration. It never treats pC as mV.
Published charge-path example: PCB documents 10 pC/g multiplied by a 10 mV/pC charge converter as 100 mV/g system sensitivity; at 14 g, the expected output is 1400 mV or 1.4 V. The charge before conversion is 140 pC.
Source and standards boundary
| ไอดี | แหล่งที่มา | Verified public information | Use on this page |
|---|---|---|---|
| S1 | ISO 16063-1:1998, Edition 1; Amd 1:2016; Amd 2:2025 | Published and confirmed in 2025. The public record identifies Part 1 as basic concepts for calibration of vibration and shock transducers and lists both amendments. | Calibration-context boundary only; not the source of the four public scaling equations. |
| S2 | ISO 16063-21:2003, Edition 1; Cor 1:2009; Amd 1:2016; Amd 2:2024 | Published and confirmed in 2025. Its public abstract covers comparison calibration of rectilinear vibration transducers, normally 0.4 Hz to 10 kHz, and evaluation of significant uncertainty sources. | Evidence for calibration frequency/uncertainty context; not an online sensor-range formula. |
| S3 | PCB, Introduction to Charge Mode Accelerometers | Official public guidance distinguishes pC/g sensor output from mV/pC conversion and gives 10 pC/g * 10 mV/pC * 14 g = 1400 mV. It states that charge-sensor range and conditioner settings are model-specific. | Public dimensional model and worked charge-chain example. |
| S4 | PCB, Introduction to ICP Accelerometers | Official public guidance describes constant-current powering, DC bias, AC output, model-specific frequency response/calibration and examples relating mV/g sensitivity to peak measurement range. | Voltage-output sensor context and evidence that range is a chain/model property. |
| S5 | PCB Model 699A07 User Manual, MAN-0192 Rev A, p. 30 | The official manual states that a 10 pC/g accelerometer with a 10 mV/pC charge amplifier has nominal system sensitivity 100 mV/g. | Independent manufacturer cross-check of the charge-to-voltage dimensional product. |
Corrections made in this audit
pC is no longer calculated as mV
The former pC/g option used the same S times A divided by 1000 voltage formula as mV/g. The replacement first reports charge in pC and requires a separate mV/pC converter sensitivity before calculating voltage.
Dynamic range and dBV inventions were removed
The former page assumed a 1 mV noise floor and computed dBV from peak voltage. Noise depends on the sensor/electronics and bandwidth, while dBV uses an RMS voltage reference. Neither number is inferred here.
Generic maximum output is no longer a sensor range
A user-entered voltage alone cannot establish sensor, conditioner and DAQ headroom. The replacement names the model-specific limits that must be checked outside the nominal sensitivity product.
Calibration and operating context are required
Sensor identity, certificate/datasheet, quantity/unit, amplitude convention, frequency, mounting, temperature, cable, conditioner and DAQ record are explicit.
Unsafe defaults and implicit persistence were removed
Generic presets, prefilled values, automatic calculation, local history and context-poor clipboard output were removed. Inputs start blank and changed results become stale.
Input and runtime integrity were rebuilt
Decimal point/comma are accepted separately; mixed separators, negative levels, zero/negative sensitivities, missing charge gain, non-finite and overflow results are rejected. Error states clear prior numbers.
