# Shock Reponse Spectrum

For more information about SRS take a look at the SRS manual.

When you press the Setup button on SRS, the following setup window will open:

A shock response spectrum is a useful tool for estimating the damage potential of a shock pulse, as well as for test level specification.

## Calculation parameters

**Start frequency and End frequency**- define the calculation range for the frequency spectrum. The upper limit is set to 2000 Hz.**Velocity DC filter**- removes the DC component of the calculated time signal “InputChannel”/VelocityHistory.**Damping/Quality factor**- Different damping factors produce different SRSs for the same shock waveform.**Frequency division**- defines the resolution of the spectrum in frequency domain. Higher the number, better the resolution.**Remove DC offset**- removes the DC component of the input time signal.**Noise floor**- will calculate the noise floor of the input time signal.

## Results

- Acceleration
- Velocity
- Displacement

## Output channels

**Absolute max (whole measurement)**- composite/maximax (the worst-case extrema for both instances). The composite shock response for the absolute maxima is the maximax.**Max (whole measurement)**- composite/maximax (the worst-case extrema for both instances). The composite shock response for the absolute maxima is the maximax.**Min (whole measurement)**- composite/maximax (the worst-case extrema for both instances). The composite shock response for the absolute maxima is the maximax.**Absolute max during shock**- primary (forced response, computation during the shock).**Max during shock**- primary (forced response, computation during the shock).**Min during shock**- primary (forced response, computation during the shock).**Absolute max after shock**- residual (free vibration, computation after the shock).**Max after shock**- residual (free vibration, computation after the shock).**Min after shock**- residual (free vibration, computation after the shock).