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Laboratory centrifuge

A laboratory centrifuge and sensor technology, applied to centrifuges and other directions, can solve problems such as high adjustment costs, increased precession of gyroscopes, and reduced offsets

Active Publication Date: 2019-07-09
SIGMA LABORZENTRIFUGEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In DE 195 39 633 A1 it is considered problematic in this offset-based detection of an imbalance that the high-speed-based The unbalance does not lead to the formation of large deflections, so that detection of the unbalance by means of the control element actuated by the deflection is not possible at high rotational speeds
The reason for this is that the precession of the gyro from the rotor can increase and decrease the degree of excursion, resulting in premature or no unbalance detection
Furthermore, disadvantageously, known offset-based control elements require high adjustment effort

Method used

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Examples

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Embodiment Construction

[0066] figure 1 The components of the laboratory centrifuge 1 are shown in a horizontal view. The centrifugal train 2 has a drive 3 , a rotor 4 and a drive and / or rotor shaft 5 via which the drive 3 can rotate the rotor 4 about a longitudinal axis and / or an axis of rotation 6 .

[0067] The centrifuge train 2 is supported in a resilient and damped manner on the housing 8 of the laboratory centrifuge 1 via spring and / or damping devices 7a, 7b. The centrifugal train 2 and the spring and / or damping device 7 form an oscillating system 9 . In the vibration system 9 , the centrifugal train 2 forms the vibration mass, while the stiffness and damping of the vibration system 9 are predetermined by the spring and / or damping device 7 . The spring and / or damping devices 7a, 7b preferably implement an offset and thus a degree of freedom of possible vibrations of the vibration system 9 as follows:

[0068] a) deflection and vibration in the direction of the longitudinal axis and / or the a...

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Abstract

The invention relates to a laboratory centrifuge (1). The laboratory centrifuge has a centrifugal system (2). The centrifugal system has a drive device (3) and a rotor (4) driven by the drive device (3). The centrifugal train (2) is supported relative to the housing (8) by means of at least one spring and / or damping device (7). The laboratory centrifuge (1) has an inclination sensor for detectingthe orientation of the longitudinal axis and / or the rotational axis (6) of the centrifuge system (2). The tilt sensor may be a gyroscope sensor held by a housing of a centrifugal system (2), or may beprovided with a magnetic field sensor and a permanent magnet (31) that generates a magnetic field.

Description

technical field [0001] Laboratory centrifuges are used, for example, in biotechnology, the pharmaceutical industry, medical technology and environmental evaluation. The laboratory centrifuge then centrifuges the product, in particular a sample container with a sample or substance arranged in the sample container, or a plurality of such products. Since centrifugation should produce accelerations that act on the product, the mixture consisting of the sample or substance is thus broken down into components of different densities. Depending on the chemical and / or physical properties of the mixture, a targeted control of the pressure and / or temperature conditions can additionally be carried out during the centrifugation. To name but a few examples, laboratory centrifuges may be used in connection with the polymerase chain reaction (PCR), determination of hematocrit, cytology tests, or centrifugation of microtiters, blood bags, oil containers, or blood containers, etc. conduct. ...

Claims

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Application Information

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IPC IPC(8): B04B9/14B04B7/00
CPCB04B9/14B04B7/00B04B9/146
Inventor E·托特伯格M·赫歇
Owner SIGMA LABORZENTRIFUGEN
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