38results about How to "Oscillation effect is good" patented technology

The present invention proposes a new way of improving the phase stability and frequency selectivity of a phase shift oscillator (100). By introducing a filter-order enhancing feedback loop (124) in association with a phase shift filter (122) in the oscillator, higher-order phase shift filtering can be achieved without using inductive elements as in conventional higher-order LC phase shift filters. This is a great advantage, since a high Q-value can be obtained without limited by the relatively high internal losses of inductive elements (L).

The invention relates to a constant temperature vibrator which comprises a vibrator main body, a vibrator, a vibration platform and a controller, wherein the vibrator is arranged in the vibrator main body; the vibration platform is arranged at the upper part of the vibrator main body; the vibration platform is connected with the vibrator; the controller is arranged on the vibrator main body; and the vibrator is connected with the controller. The constant temperature vibrator has the beneficial effects that a temperature heater is arranged, so that the requirements of an experiment for temperature can be well met; and the vibrating effect is more remarkable, and expense of a user can be saved.

The invention relates to a thermostatic oscillator which comprises an oscillator main body, a vibrator, an oscillating platform and a controller, wherein the vibrator is arranged in the oscillator main body; the oscillating platform is arranged at the upper part of the oscillator main body; the oscillating platform is connected together with the vibrator; the controller is arranged on the oscillator main body; and the vibrator is connected with the controller. The thermostatic oscillator has advantages that requirement of experiments for temperature can be well met by arranging a temperature heater, and the thermostatic oscillator has a remarkable oscillating effect and saves expenditure for a user.

A test tube oscillator, a test tube placement box is fixedly connected by springs between the front and rear vertical plates, the test tube placement box is hollow and has an upward opening, a test tube positioning plate is fixedly connected to the test tube positioning box, and a test tube positioning plate is set There are multiple test tube perforations; the two vertical plates on the left and right sides of the test tube storage box are respectively fixedly connected with left and right corresponding baffles, and each baffle is provided with horizontal push grooves, and the push grooves are wavy. A push rod is plugged in the left and right push grooves, and the test tube placement box is erected on the push rod. A support plate is fixedly connected to the bottom of the test tube placement box, and the support plate is provided with a support groove along its length direction, and the push rod passes through the support groove. The outer transmission of the push rod in the support groove is connected with an inner bearing. Two support plates are fixedly connected to the bottom of the test tube placement box, and the push rod passes through the left and right support grooves. The lower side wall of the push groove is recessed downwards and provided with a plurality of connected pits, balls are rollingly arranged in the pits, and the push rod is in rolling contact with the balls.

A surface acoustic wave element includes a piezoelectric substrate, an IDT composed of a pair of first and second comb-like electrodes, formed around a center of the piezoelectric substrate, and formed on a surface of the surface acoustic wave element, and a pair of first and second terminals electrically connected to the IDT, formed at central and peripheral areas of the piezoelectric substrate, respectively, in which a package is bonded with an adhesive to a surface of the surface acoustic wave element, opposite to the surface formed with the IDT.

The invention discloses a pneumatic oscillatory type cell culture system which comprises a constant temperature water bath box, wherein a culture bottle is arranged in the constant temperature water bath box and the culture bottle is internally provided with an air pump device. According to the invention, since the air pump device is arranged in the culture bottle, after the culture bottle is full filled with culture liquid containing experiment cells, the constant temperature water bath box can provide constant temperature water bath, the air pump device can pump air in the culture liquid, the pumped air naturally drives the culture liquid to turn over and oscillate, and because the oscillation is not forced oscillation caused by a mechanical stirring device, the cells can not be damaged. The pneumatic oscillatory type cell culture system has the advantages of simple and ingenious structure and good oscillation effect, can be widely applied to experiments of cell culture, fermentation, hybridization, biochemistry, enzyme and cell tissue and the like.

The invention discloses an automatic wire embedding machine for electric brushes. A fixing assembly is installed on a mounting plate, an adjusting assembly is arranged on the front and rear sides of the fixing assembly. The cable fixed-length cutting assembly is arranged on the left or right side, and a fixed welding manipulator for fixing the cable on the brush sheet is also arranged on the mounting plate. The brush embedding machine of the present invention has fast processing speed and high automation for brush embedding, and can greatly improve the efficiency of brush embedding. Yes, the applicability of embedding wires is greatly improved. In addition, the blanking of the brush piece blanking assembly of the present invention is accurate, and the vibration effect of the oscillation component is good, which can ensure the blanking of each brush piece in the installation sequence, and reduce the occurrence of empty space or Many problems, the present invention is simple in structure, easy to use, can well reduce labor intensity and manufacturing cost.

A traction type oscillator for inspection comprises a supporting plate, one side of the supporting plate is fixedly connected with a vertical plate, and the other side of the supporting plate is fixedly connected with a support, the inner side of the vertical plate is fixedly connected with a transversely-arranged tension spring, and the other end of the tension spring is fixedly connected with atest tube containing box, the test tube containing box is placed on the supporting plate in a left-right sliding mode, and the test tube containing box is hollow and provided with an upward opening, the test tube containing box is internally and fixedly connected with a shelf, a plurality of test tube penetrating holes are formed in the shelf in a row and in the transverse mode, and a supporting frame is fixedly connected to the outer side of the support, a rotating shaft is rotationally connected to the supporting frame in a rotating mode, and a rocker is in transmission connection with one end of the rotating shaft, and the other end of the rotating shaft is in transmission connection with a rotating disc, a rope pulling pin is rotationally connected on the rotating disc, the rope pulling pin is connected with a soft rope, the other end of the soft rope is fixedly connected with the test tube containing box, and the soft rope and the tension spring are respectively positioned on opposite sides of the test tube containing box; protruding strips are fixedly connected on the supporting plate, and the lower surface of the bottom wall of the test tube containing box is sunken upwardsto form an arc-shaped groove corresponding to the protruding strip.

A lifting and swinging oscillator, the left and right brackets are fixedly connected with the front and rear corresponding beams, and the front and rear beams are connected with a plurality of non-circular turntables arranged side by side through the relative rotation of the rotating shaft, and the rotating shaft and the beam rotate relatively connection, the rotating shaft is fixedly connected with the turntable, and one end of the rotating shaft is connected with a rocker; the upper end of the beam is fixedly connected with a vertical spring, and the upper end of the spring is fixedly connected with a hollow test tube holding box with an upward opening. The box is erected on the turntable, and the test tube box is located between the left and right brackets. The test tube box is fixedly connected with a shelf, and a plurality of test tube perforations are arranged vertically and horizontally on the shelf. The turntable is one or more of ellipse, triangle or rectangle. The intersection point of the turntable and the rotating shaft deviates from the center of the turntable. A baffle is fixedly connected to the inner side of the support, and the test tube holding box is located in the area surrounded by the baffle. The baffle is triangular, rectangular or trapezoidal.