Development News

Technology news and its applications
  • 2019: R-sensors extends digital seismometers series
    2019: R-sensors extends digital seismometers series
    R-sensors launches two new models of digital seismometers which are CME-6011ND и CME-6111ND

    Key features of this series are mechanical durability, low power consumption, presence of force feedback - all these provide a notably improved time and temperature stability of the parameters as well as an easy operation. 

    R-sensors' digital seismometers can be used in various applications - from seismic observatories to microzoning.
  • 2018: tests on the Ladoga lake
    2018: tests on the Ladoga lake
    Our colleagues of The Center for Molecular Electronics (CME) in cooperation with The Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences carried out the field research tests of geohydroacoustic molecular-electronic measuring modules at the test site of Oceanpribor (Ocean Instruments) on one of the skerries of the Ladoga Lake which is east of Saint Petersburg.

    Ice-frozen modules in a predetermined arrangement conducted the 24-hour monitoring of seismic events on the ice of the lake. By means of the recorded data, the propagation of various types of waves in a complex structure (ice-water-bottom) has been studied. The received data allowed to perform the tomography of the place of measurement. The autonomous molecular-electronic geohydroacoustic modules provided the registration, storage and data transfer in relation to the location coordinates and the exact GPS time during one week. 

    In addition, the testing program included full-scale tests of a new development of CME – a prototype of a molecular-electronic hydrophone on a natural reservoir. The sensors' self-noise and comparison of the response to an external signal with foreign analogs have been studied.
  • 2017: presentation of seismometer for asteroid, NASA files
    2017: presentation of seismometer for asteroid, NASA files
    An amazing presentation titled 'APEX - Asteroid Probe Experiment' given at The Small Satellite Conference by our colleagues from Johns Hopkins University, University of Maryland and Arizona State University describing a possible placement of a molecular-electronic seismometer on the surface of Apophis asteroid.

    Watch the original presentation available on the NASA website.
  • 2017: NDAS data loggers launched
    2017: NDAS data loggers launched
    The data loggers' product line has been enriched with the products by NordLab LLC - a joint enterprise of R-sensors and MIPT. The new data loggers are named NDAS. They exploit the latest ARM architecture Texas Instruments' controller and a multichannel ADC by Analog Devices. Low power consumption and wireless Wi-Fi interface for setup and signal quality control are but two distinctive features of NDAS. A GPS/GloNass combined receiver provides coordinates and clock synchronization.

    The current product line is constituted by 4 channel low power autonomous data logger NDAS-8224 and 6 channel multi-purpose data logger NDAS-8226. The 12 and 48 channel versions are under development. The data loggers can be equipped by an accelerometer and a magnetic compass which allow determination of azimuthal orientation and tilt with respect to vertical direction as well as by temperature, pressure and humidity sensors for checking the working conditions and impermeability in case of a submerged deployment. All auxiliary information from sensors is available in telemetric transfer from the data logger as well as it is stored along with the registered signal. 

    The full compatibility with R-sensors' seismic sensors was of most importance during the development of the data loggers. A joint project of R-sensors and NordLab for the design of seismographs - seismic sensors with an integrated data logger - is now being developed jointly.
  • 2017: an article on self-contained seismic station NDAS-8224
    2017: an article on self-contained seismic station NDAS-8224

    This paper reports on a field testing of the self-contained seismic station NDAS-8224 which has a modular structure allowing for operations under different environmental conditions like onshore, offshore to a 500-meter depth and in transition zones. The station operation frequency band is 300 Hz which is wider than that of the majority of seismic stations based on standard (10 Hz) geophones.
  • 2017: an article on accelerometers MTSS-1033A
    2017: an article on accelerometers MTSS-1033A

    This paper reports on the development of the feedback system for a MET seismic accelerometer, a feedback stability analysis and optimization of the signal conditioning feedback electronics to get the highest dynamic range. The article is focused on the operation principles of the MTSS-1033A seismic accelerometer and contains the latest comprehensive analysis of the noise generation mechanisms which occur in molecular-electronic transducers.
  • 2016: two articles on the MET sensors
    2016: two articles on the MET sensors

    Both articles were written by our colleagues and are covering the latest results of the MET sensors studies gained in MIPT laboratories in 2015 - 2016.
  • 2016: strong motion modification of METR-01
    2016: strong motion modification of METR-01
    The modification of the one-component rotational sensor METR-01 was designed and successfully tested. 

    The modified sensor has a 1 rad/sec input signal range. To comply with the output voltage range, the sensitivity was reduced ten times down to 5 V/rad/sec. In order to do it, an additional thin ceramic paper was placed inside the sensing channel. Follow the link for a METR-01LS sensor tests presentation.
  • 2016: renewal of Baykal-CME seismic station
    2016: renewal of Baykal-CME seismic station
    The components of seismic station Baykal-CME were renewed. 

    The new DSP of Baykal-8 data logger allowed for recording the same signal at different sample rates simultaneously. The recording of signal with reduced sampling permits a quick amplitude analysis to be performed on a long-term recording, which is highly demanded by seismologists. Apart from this, the output for applying periodical test signals to sensors was introduced. 

    The modification of the CME-6211 seismic sensor allowed for wide power supply options to be offered, namely from +5 to +36V DC which were earlier available only for the CME-6111 seismic sensor. Besides, the self calibration circuits were modified so the response curves for all three channels can be obtained. The circuits were optimized for interaction with Baykal-8 data logger.
  • 2016:
    2016: 'Instrumentation in Earthquake Seismology' published
    Springer Publishing House published a second edition of 'Instrumentation in Earthquake Seismology'

    The chapter on 'Some New Trends in Seismic Sensors' covers a description of modern electrochemical transducers of linear and angular motion. The CME-6211 - a top model among the seismometers produced by R-sensors - is listed on the summary table of 'Overview of some active sensors available on the market'.