Calibration Systems

Objective of Calibration

A calibrated measuring instrument is indispensable for:

  • Taking precise measurements with well-known measurement uncertainty
  • Taking measurements the results of which are commensurable
  • Granting legal security as the results of the measurements taken can be traced to the respective national calibration standards

Calibration Hierarchy

SPEKTRA Calibration Systems:

SPEKTRA CS18 Calibration Systems provides a means to cope with all requirements of traceable calibration and efficient laboratory operation in conformance with all applicable standards. Its performance, can be extended by means of optional extras and special accessories, such as possibility of integrating varied vibration or shock exciters.

Options and Accessories:

For sensor calibration and other vibrational investigation, versatile accessories for mechanical and electrical adaptation are required, e.g.

  • Small screws with diverse, metric and/or imperial threads for mounting the different sensor types onto the vibration exciter head.
  • Electrical adaptors, sensor supply, PR/bridge-amplifiers, charge amplifiers
  • Special sensor cables
  • Mechanical adapters for mounting small and large DUTs onto vibration exciter
  • Accessories for insertion of vibration into mechanical structures, e.g. stinger set

Detail

Seismic Calibration Systems

Seismic Secondary Calibration System

CS18 VLF (0.2 to 160 Hz)
  • Frequency Range: 0.2 Hz – 160 Hz (Optional Frequency Range: 0.1 Hz to 160 Hz)
  • Amplitude: Up to 50 mm
  • Sensor mass up to 900 gram
  • Secondary calibration according to ISO 16063-21 (comparison method) of charge type, ICP®, voltage, capacitive and piezo-resistive sensors for acceleration, velocity and distance, with Sine excitation with high accuracy
  • Secondary calibration of reference standards
Detail

Seismic Primary Calibration System

CS18P VLF (0.2 to 160 Hz)
  • Frequency Range: 0.2 Hz – 160 Hz possible
  • Max. Stroke: Up to 400 mm possible
  • Calibration of heavy sensors with up to 5 kg weight (for sensors up to 20 kg on request)
  • Primary calibration of vibration sensors, calibrators and measurement systems with very high quality and performance according to ISO 16063-11 (Primary Calibration, method 3)
  • Primary calibration of laser vibrometers and reference laser vibrometers performance to ISO 16063-41
  • Primary calibration of reference standards
Detail

Shock Calibration Systems

Shock Secondary Calibration System

Item Name: Pneumatic Shock Calibration System, CS18 LMS (50 m/s² to 100,000 m/s²)
  • Amplitude Range: 50 m/s² to 100,000 m/s²
  • Shock Duration: 0.1 ms to 5 ms
  • Secondary calibration of shock-sensors as well as complete measuring instruments in form of a measuring chain, with very high precision and efficiency, according to ISO 16063-22 (calibration by the comparison method)
  • Secondary calibration of accelerometer standards
Detail

Shock-Pendulum Calibration System, CS18 LS (100 m/s² to 2,000 m/s²)
  • Amplitude Range: 100 m/s² to 2,000 m/s²
  • Shock Duration: 1 ms to 10 ms
  • Secondary calibration of shock-sensors as well as complete measuring instruments in form of a measuring chain, with very high precision and efficiency, according to ISO 16063-22 (calibration by the comparison method)
  • Secondary calibration of accelerometer standards
Detail

Hopkinson-Bar Calibration System, CS18 (V)HS (Up to 2,000,000 m/s²)
  • Amplitude Range: 100,000 m/s² to 1,000,000 m/s² (CS18 HS)

100,000 m/s² to 2,000,000 m/s² (CS18 VHS)

  • Pulse Width (Full-Sine): 50 μs (CS18 HS),  40 μs (CS18 VHS)
  • Secondary calibration of shock transducers as well as complete measuring instruments in form of a measuring chain, with very high precision and efficiency, according to ISO 16063-22 (calibration by the comparison method)
  • Secondary calibration of shock accelerometer reference standards
Detail

Hopkinson-Bar Calibration System, CS18 MS (200 m/s² to 40,000 m/s²)
  • Amplitude Range: 200 m/s² to 40,000 m/s²
  • Pulse Width (Full-Sine): 80 μs – 360 μs
  • Secondary calibration of shock transducers as well as complete measuring instruments (measuring chain) with very high precision and efficiency, according to ISO 16063-22 (calibration by the comparison method)
  • Secondary calibration of shock accelerometer reference standards
Detail

Shock Primary Calibration System

Hopkinson-Bar Calibration System, CS18P HS (Up to 750,000 m/s²)
  • Amplitude Range: 10,000 m/s² to 750,000 m/s²
  • Pulse Width (Full-Sine): 50 μs
  • Primary calibration of shock sensor transducers as well as complete measuring instruments (measuring chain) with very high precision and efficiency, according to ISO 16063-13
  • Primary calibration of shock accelerometer reference standards

Detail

Hopkinson-Bar Calibration System, CS18P MS (Up to 50,000 m/s²)
  • Amplitude Range: 20 m/s² to 50,000 m/s²
  • Pulse Width (Full-Sine): 80 μs – 400 μs
  • Primary calibration of shock transducers as well as complete measuring instruments (measuring chain) with very high precision and efficiency, according to ISO 16063-13
  • Primary calibration of shock accelerometer reference standards
Detail

Vibration Calibration Systems

Vibration Secondary Calibration System

CS18 MF (3 Hz to 10 kHz)
  • Frequency Range: 3 Hz – 10 kHz
  • Acceleration Amplitude: Up to 500 m/s²
  • Secondary calibration according to ISO 16063-21 (comparison method) of charge type, IEPE, voltage, capacitive and piezo-resistive sensors for acceleration, velocity and displacement, with Sine excitation with high accuracy
  • Secondary calibration of reference standards
  • Also available as mobile system
Detail

CS18 HF (5 Hz to 20 kHz)
  • Frequency Range: 5 Hz – 20 kHz
  • Acceleration Amplitude: Up to 400 m/s²
  • Secondary calibration according to ISO 16063-21 (comparison method) of charge type, ICP®, voltage, capacitive and piezo-resistive sensors for acceleration, velocity and distance, with Sine excitation with high accuracy
  • Secondary calibration of reference standards
  • Also available as mobile system
Detail

Vibration Primary Calibration System

CS18P HF (5 Hz to 20 kHz)
  • Frequency Range: 5 Hz – 20 kHz
  • Acceleration Amplitude: Up to 400 m/s²
  • Primary calibration of vibration sensors, calibrators and meters with lowest measurement uncertainty according to ISO 16063-11 (Primary calibration using method 3)
  • Primary calibration of laser vibrometers and reference laser vibrometers according to ISO 16063-41
  • Primary calibration of reference standard transducers

Detail

Acoustic Calibration Systems

Free-Field Calibration 125 Hz to 20 kHz, CS18 FF
  • Frequency Range: 125 Hz – 20 kHz
  • Secondary calibration of measuring microphones, sound level meters and other acoustic sensors according to IEC 61094-8 and IEC 61672
  • Periodic single qualification according to IEC 61672-3
  • Calibration of calibrators according to IEC 60942
Detail

Pressure-Chamber Calibration 31.5 Hz to 16 kHz, CS18 SPL
  • Frequency Range: 31.5 Hz – 16 kHz
  • Pressure chamber secondary calibration of measuring microphones according to IEC 61094-5
  • Pressure chamber secondary calibration of sound level meters and sound level measuring chains according to IEC 61672
  • Calibration of acoustic calibrators and pistonphones according to IEC 60942
  • Can be combined with anechoic chamber (upgrade free field calibration)
Detail

Electro-Acoustic Coupler, SQ-4.2
  • Frequency Range: 31.5 Hz – 16 kHz
  • Sound Pressure Level: 64 dB – 124 dB
  • True pressure chamber calibration
  • Calibration for 1/2 and 1/4 inch microphones (1 inch microphones on request)

Detail

Infrasonic Calibration 0.1 Hz to 31.5 Hz, CS18 SPL-VLF
  • Frequency Range: 0.1 Hz – 31.5 Hz
  • Very low frequency calibration of pressure transducers and pressure measuring devices
  • Pressure chamber secondary calibration of measuring microphones and microphone measuring chains

Detail

Pressure Calibration Systems

Dynamic Pressure Exciter, DPE-02 (22 MPa to 420 MPa)
  • Amplitude: 22 MPa to 420 MPa
  • Realization of all automatic calibrations according to own test regime (up to 1 shock/s)
  • User-friendly and efficient
  • Upgradeable to a shock acceleration calibration device
  • Dynamic calibration of pressure sensors
  • Dynamic tests of pressure sensors

Detail 

Dynamic Pressure Exciter, DPE-01 (100 Pa to 16 kPa)
  • Frequency Range: 10 Hz – 2 kHz
  • Amplitude: 100 Pa to 16 kPa

Detail

Options and Accessories

CAL-Q-U-ICP
  • Calibration of signal conditioners (payload-, IEPE-, measuring amplifiers);

    In conjunction with the optional extra PHASE also applicable to PHASE calibration of signal conditioners

  • Optional extra CAL-Q-U-ICP is available for each of the CS18 calibration systems. This complementary set of hardware and software enables charge, voltage and IEPE amplifiers as well as microphone pre-amplifiers to be calibrated with respect to amplitude and phase.

Detail

PR-Measurement
  • Signal conditioners and software for PR-sensors;

    PR signal conditioner power supply of piezo-resistive (bridge), variable capacitance and similar sensors used with the CS18 calibration system

Detail

Laser Vibrometers
  • Calibration of laser vibrometers

    Optical components and software for calibration according to ISO 16063-41

  • All primary calibration systems by SPEKTRA include a laser vibrometer standard traced back to PTB and so are suited to the calibration of laser vibrometers and digital laser vibrometer standards.

Detail

Sensor Supply Internal
  • Provides proper connection of several kinds of sensors to a voltage input of a measurement device (here: CS18 VCU). Sensor is plugged in at input. Signal output is connected to CS18 VCU input. Provides DC supply voltage(s) for sensor and performs signal preconditioning

Detail

TRANS for CS18 VLF (primary and secondary)
  • CS18 TRANS as an optional extra to a type CS18(P) VLF calibration system for determining the transversal transfer coefficient as a function of operating angle. It is intended for operation in conjunction with an APS 129 or APS 500 air bearing long stroke vibration exciter in the frequency range between 2 Hz and 50 Hz.

Detail

Accessories Case ZK-STD
  • This case is containing all important accessories which you may need for the calibration of accelerometers of the most well-known manufacturers.

Detail

Accessories Case ZK-HOP
  • This case is containing all important accessories which you may need for the calibration of shock accelerometers with the CS18(P) HS.

Detail

APS 0109
  • The APS 0109 Zero Position Controller automatically controls the zero position of a vibration exciter irrespective of its load. It is essential to employ a position controller of type APS 0109 especially when working with an air-bearing vibration shaker without any integrated automatic load-compensation

Detail

Attenuator, ATS-15
  • Part of electrical final test and calibration bench
  • Division Ratio: 1:1, 1:8, 1:64, 1:512
  • Frequency Range: 0 Hz – 100 kHz
  • Accuracy: Up to 0.015 %
Detail

Adapters and Cables:
  • Mounting & Adhesive Mounting Adapters
  • Adapter Sets and Plates
  • Cables
  • Connectors
  • Mounting Studs and Bushings
  • Other (Test Thread and Zero Position Spacer)

Detail

CS18 Calibration Software

Every good hardware needs to be complemented by software with the necessary high performance.

The CS18 software was created in close cooperation with the SPEKTRA Calibration laboratory accredited by DAkkS. It meets the demands of every efficiently operating calibration laboratory already in its basic configuration and can easily be adapted to the workflows of any company.
  • Simple to operate
  • Integrated sensor database
  • Data export to Word®, Excel®, …
  • Automation interface
  • Calibration database server (Optional)
  • Interface to foreign databases (Optional)
  • Calibration of digital sensors (e. g. DTI)

Modes for Vibration Calibration Systems include: 

  • Sine calibration: Calibration of acceleration sensors and velocity sensors with sinusoidal excitation at fixed frequencies
  • Sweep: Excitation with continuously varied sinusoidal signals – determination of transfer function of sensors (to detect any resonances and discontinuities)
  • Measurement: Calibration of vibration calibrators
  • Signal generation: Calibration of vibration measuring instruments with indicators of their own

Modes for Shock Calibration Systems include:

  • Shock calibration: Calibration of acceleration sensors with shock-type excitation. Enables automatic performance of calibration on SPEKTRA Shock exciter.

Modes for Acoustics Calibration Systems include:

  • Microphone calibration (free-field): Calibration of complete microphones andmicrophone cartridges with sinusoidal excitation in an anechoic chamber (freefield conditions)
  • Calibration of sound level meters (pressure): Calibration of sound level meters by means of a pressure chamber(pistonphone, acoustic calibrator, acoustic coupler)
  • Microphone calibration (pressure): Calibration of microphones by means of a pressure chamber (pistonphone, acoustic calibrator, acoustic coupler)
  • Calibration of sound level meters (freefield): Calibration of sound level meters with sinusoidal excitation in an anechoic chamber (free-field conditions)
  • Calibration of acoustical calibrators: Calibration of acoustical calibrators or pistonphones by means of a reference calibrator (substitution method)

Detail