Seismometer/ Accelerometer Calibration Table

Vertical & Horizontal Single-Step Displacement Tool

  • Portable seismometer/ accelerometer calibration table that can be used in the field or the laboratory
  • Verify the gain for accelerometers, accelerographs, seismometers and seismographs
  • Compatible with all broadband and short-period seismometers and accelerometers
  • Verifies the entire instrumentation chain!
  • Micrometer precision
  • Easy to set up and use
  • People powered, NO motor and NO power supply required
  • Please note that the product listed here is for the Calibration Table only. The seismographs in the photos are for illustration purposes only.

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Description

Our professional-grade calibration table* accurately calibrates all types of  broadband and short period seismometers and accelerometers.

Designed after Erhard Wielandt’s Lennartz CT-EW1 calibration table, our calibration table is lighter and motor-free requiring no power to operate. It is a little larger than a shoebox so is easily portable allowing you to calibrate your equipment wherever you are located; in the field, in the vault and in the laboratory.

The days of calibrating your sensors with heavy immobile workshop equipment are gone.

The table has micrometer precision with a displacement range capable of calibrating the instrument of your choice, and verifying the entire instrumentation chain.

*Please note that the product listed here is for the Calibration Table only. The seismographs in the photos are for illustration purposes only.

Raspberry Shake, S.A. is an authorized reseller of OSOP products. For pricing and to find out more contact us to request a quote.

Additional Information

Design By Erhard Wielandt and modified by OSOP. Raspberry Shake, S.A. is an authorized reseller of OSOP products.
Precision Dial gauge has micrometer precision
Motors Not required. People powered.
Dimensions (estimated) Tabletop: 248 x 248 mm

Height: 171 mm

Bridge: 248 mm wide x 503 mm long

Weight (estimated) Table: ~6.9 kilograms

Bridge: ~4.2 kilograms

Displacement ~0.0025 – ~0.550 mm or more than enough to calibrate your instrument of choice
Accuracy 1%
Extension Bridge Included
Technical Specifications Full specs here
Manual Details here, including Youtube how-to videos guide you through the entire process.
Software OSOPCAL: Software for determining the gain from calibration table experiments.
Warranty One year.
Shipping All products are shipped by INCOTERM DAP. The buyer assumes all responsibility for import duties and taxes.

What's Included

  • 1x Calibration Table with horizontal extension bridge
  • 1x transport box
  • 1x osopcal software for data processing

FAQs

What is it?

A vertical single-step displacement tool.

Why is it useful?

A dial gauge with micrometer precision tells you exactly how much the sensor moved, a critical value when generating an instrument response file or confirming your existing instrument response file is still valid.

How does it work?

In the interest of improving the robustness and field readiness of the Wielandt calibration table, OSOP has removed all motorized parts, replacing the motor with a manual lever. NO gear boxes NO fuss and NO power supply.

Is it portable?

Yes, the OSOP Calibration Table was designed for the field and remote out-of-the-laboratory experiences.

Will it work with for my STS-2.5?

Yes, and your Nanometrics Trillium Compact, Nanometrics Trillium 120, STS-2, Metrozet, Reftek 151, Lennartz LE 3Dlite, Guralp CMG-3, … You name your favorite sensor and the calibration table will work.

Does it come with an extension bridge to calibrate the horizontal components?

Absolutely.

Is it complicated?

Using the table is EASY. All of the complicity lies in the design- getting true vertical motion is tricky. But we sorted that out, so your job is as simple as moving a lever.

Can I build my own?

Absolutely, and we encourage it- see these instructions by Erhard Wielandt to build your own table out of plywood. But when you want commercial-grade precision, go OSOP.

Can I send my instrumentation to Raspberry Shake to be calibrated?

Yes! We will generate a new, up-to-date response file for your instrumentation (poles zeros, gain- the complete transfer function) and deliver it to you in RESP, dataless or inventory-xml formats compatible with Earlybird, Earthworm, ObSpy, Seisan and SeisComP.  Please contact us for more information!

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