# obspy.core.inventory.response.InstrumentSensitivity.__init__

`InstrumentSensitivity.``__init__`(value, frequency, input_units, output_units, input_units_description=None, output_units_description=None, frequency_range_start=None, frequency_range_end=None, frequency_range_db_variation=None)

  Parameters: | value (float) Complex type for sensitivity and frequency ranges. This complex type can be used to represent both overall sensitivities and individual stage gains. The FrequencyRangeGroup is an optional construct that defines a pass band in Hertz ( FrequencyStart and FrequencyEnd) in which the SensitivityValue is valid within the number of decibels specified in FrequencyDBVariation. frequency (float) Complex type for sensitivity and frequency ranges. This complex type can be used to represent both overall sensitivities and individual stage gains. The FrequencyRangeGroup is an optional construct that defines a pass band in Hertz ( FrequencyStart and FrequencyEnd) in which the SensitivityValue is valid within the number of decibels specified in FrequencyDBVariation. input_units string input_units The units of the data as input from the perspective of data acquisition. After correcting data for this response, these would be the resulting units. Name of units, e.g. “M/S”, “V”, “PA”. input_units_description string, optional input_units_description The units of the data as input from the perspective of data acquisition. After correcting data for this response, these would be the resulting units. Description of units, e.g. “Velocity in meters per second”, “Volts”, “Pascals”. output_units string output_units The units of the data as output from the perspective of data acquisition. These would be the units of the data prior to correcting for this response. Name of units, e.g. “M/S”, “V”, “PA”. output_units_description (str, optional) The units of the data as output from the perspective of data acquisition. These would be the units of the data prior to correcting for this response. Description of units, e.g. “Velocity in meters per second”, “Volts”, “Pascals”. frequency_range_start (float, optional) Start of the frequency range for which the SensitivityValue is valid within the dB variation specified. frequency_range_end (float, optional) End of the frequency range for which the SensitivityValue is valid within the dB variation specified. frequency_range_db_variation (float, optional) Variation in decibels within the specified range.

### Thank you!

We would like to thank our contributors, whose efforts make this software what it is. These people have helped by writing code and documentation, and by testing. They have created and maintained this product, its associated libraries and applications, our build tools and our web sites.

#### Contributors

- Ackerley, Nick
- Allgeyer, Sebastien
- Ammon, Charles J.
- Antunes, Emanuel
- Arnarsson, Ólafur St.
- Bank, Markus
- Barsch, Robert
- Behr, Yannik
- Bernardi, Fabrizio
- Bernauer, Felix
- Bes de Berc, Maxime
- Beyreuther, Moritz
- Boltz, Shawn
- Bonaimé, Sébastien
- Carothers, Lloyd
- Chamberlain, Calum
- Chambers, Derrick
- Chen, Zhao
- Clark, Adam
- Danecek, Peter
- Egdorf, Sven
- Engels, Fabian
- Ermert, Laura
- Eulenfeld, Tom

- Fabbri, Tommaso
- Falco, Nicholas
- Fee, Jeremy
- Grellier, Clément
- Grunberg, Marc
- Hammer, Conny
- Heimann, Sebastian
- Heiniger, Lukas
- Hope, Gaute
- Igel, Heiner
- Inza, Adolfo
- Isken, Marius
- Ketchum, David
- Koymans, Mathijs
- Kremers, Simon
- Kress, Victor
- Krieger, Lars
- Krischer, Lion
- Kula, Damian
- Käufl, Paul
- Köhler, Andreas
- Lecocq, Thomas
- Leeman, John
- Legovini, Paride

- Lesage, Philippe
- Li, Yulin
- Lomax, Anthony
- Lopes, Rui L.
- MacCarthy, Jonathan
- Maggi, Alessia
- Martin, Henri
- Medlin, Andrew
- Megies, Tobias
- Meschede, Matthias
- Michelini, Alberto
- Miller, Nathaniel C.
- Morgenstern, Bernhard
- Nof, Ran Novitsky
- Panning, Mark P.
- Parker, Tom
- Pestourie, Romain
- Rapagnani, Giovanni
- Reyes, Celso
- Ringler, Adam
- Rothenhäusler, Nicolas
- Russo, Emiliano
- Sales de Andrade, Elliott

- Satriano, Claudio
- Saul, Joachim
- Scheingraber, Chris
- Schneider, Simon
- Sippl, Christian
- Snoke, Arthur
- Stange, Stefan
- Stähler, Simon C.
- Sullivan, Benjamin
- Tian, Dongdong
- Trabant, Chad
- Trani, Luca
- Uieda, Leonardo
- Walker, Andrew
- Walther, Marcus
- Wassermann, Joachim
- Williams, Mark C.
- Winkelman, Andrew
- Zaccarelli, Riccardo
- Zad, Seyed Kasra Hosseini
- Zhu, Lijun
- van Driel, Martin
- van Wijk, Kasper

#### Funds

ObsPy was partially funded by the

- German Science Foundation (DFG) via grant DFG IG 16/9-1
- German Ministry for Education and Research (BMBF), GEOTECHNOLOGIEN grant 03G0646H.
- NERA project (Network of European Research Infrastructures for Earthquake Risk Assessment and Mitigation) under the European Community's Seventh Framework Programme (FP7/2007-2013) grant agreement n° 262330
- Leibniz Institute for Applied Geophysics (LIAG)
- VERCE EU-FP7 project (no. 283543)