Device for dynamic control of the geometric dimensions of the reservoir and the vibrations of the rotor of the electric motor
(57) Abstract:The invention relates to measuring equipment. The technical result is to increase the efficiency of quality control in the Assembly and state collector during operation of the motor in static and dynamic modes. The result is achieved that the device for the dynamic control of the geometric dimensions of the reservoir and the vibrations of the rotor of the motor includes a laser 1, is installed along the beam from the beam splitter 2, the unit photodetectors 6 and 7, the block pulse shaper 9, corresponding milameline intervals manifold of the motor, the rpm sensor 8, the input signal simultaneously with a pulse from the output of the pulse shaper block set of slats 10, forming the pulse, the opening unit of the electronic key 11, the signals from which are received at block summing signals 12 that generates the output pulse, the amplitude of which is proportional to the radial offset of the specified slats about an axis of rotation, block shaper output signal 13, the output voltage is equal in magnitude to the amplitude of the pulses coming from the block of addition 12, oscilloscope and data logger, recording the signal. Great is alsow milameline gaps, set of slats, forming the output signal, in addition, the optical axis of the beams are positioned so that one of them is partially overlapped with the collector plates, and the second axis of the rotor. 1 Il. The invention relates to measuring technique and can be used in the field of electrical engineering, quality control, Assembly and measuring the geometric dimensions of the reservoir and the vibrations of the rotor of the electric motor.A device for monitoring the diameters of the products containing the radiation source, a beam splitter, the two parts of the light flux, which is directed through the opening of the modulating disk and the diaphragm with the holes in the controlled item and then on the solar cells, the signals from which, depending on the ratio between the light flows cause changes on the amplifier and fed to the recording device /see Vorontsov L. F. Photovoltaic system of linear control values. Moscow, Mashinostroenie, 1965, S. 31/.The disadvantages are the lack of the possibility to measure the dimensional changes of a rotating body in a radial cross-section depending on speed.The closest in technical sushnost is s, containing emitters, photodetectors, representing a pair of optical elements, the measured object perpendicular to the optical axis plane pairs and overlying the light flux on the photodetector, the output of which is formed a signal passing through the shaper on the indicator, the output of which a signal is generated proportional to the size of the object 
The disadvantages of the prototype should include the inability to measure the dimensions of rotating parts in different radial sections that required for measuring the position of the collector plates /slats/ during its rotation, and the use of a large number of pairs of optical elements, which complicates the processing of the output signal.The technical result is to increase the efficiency of quality control in the Assembly and state collector during operation of the motor in static and dynamic modes.The result is achieved that the device for the dynamic control of the geometric dimensions of the reservoir and the vibrations of the rotor of the motor containing the laser light source, a two-beam optical system, photodetectors, electronic block key block pulse shaping milumil borochov, moreover, the optical axis of the beams are positioned so that one of them is partially overlapped with the collector plates, and the second axis of the rotor, and the output of the photodetector, configured on the first beam is connected to the input of the pulse shaping milameline gaps and the input unit of an electronic key, a second input connected to the output of the photodetector, configured on the second beam to the second input of the block pulse shaping milameline periods connected the rpm sensor, and its output connected with the control input of the electronic key, the outputs of which are connected to the unit of addition, the output of which is connected to the input of the block forming the output signal.The system can measure the geometric dimensions of the manifold in a given cross-section depending on the rotation frequency, and to control vibrations of the rotor of the electric motor. This allows measurement of the radial displacement of the plates of the collector depending on the motor rotation speed in the range from zero to 300 microns with a sensitivity of 0.5 micron.The drawing shows a block diagram of the device.The device comprises optically coupled to the laser 1, the beam of which is directed through svetista also contains the photodetectors 6 and 7, the sensor 8 of revolutions of the motor unit 9 of the pulse shaper, the output of which is connected to the block 10 set of slats, electrically connected with the electronic key 11, block 12 of the addition signal voltage which is supplied to the unit 13 to generate an output signal, the output of which is connected to the oscilloscope 14 or recorder 15. Frequency 16 controls the engine speed.The device operates as follows.The laser 1 and the beam splitter 2 create two parallel light flux, the first of which partially overlaps the blades /blades/ collector 3, and the second axis of flow 4, the signals from the photodetectors 6 and 7, is proportional to the radial displacement of these parts of the collector, proceed to block 11 of electronic keys that are opened by a pulse coming from the block set of the slats 10. During the rotation of the collector signal from the photodetector 6 contains, in addition to the useful signal, which carries information about the radial displacement of the slats in space, the pulses corresponding to the time of passage of the light flux milameline intervals. These pulses are pulse shaper 9 milameline gaps and together with the momentum from the rpm sensor pic and coincide with the passage of the light flux given lamella, the number which is entered in advance by the operator. As one beam after the beam splitter 2 is covered by the slats of the collector 3, and the second axis of rotation of the engine, the measurement signal that is the sum of the voltages from the two corresponding photodetectors, proportional to the radial displacement of the slats, so after passing through the block 11 electronic keys on the output unit 12 adding the signals are pulses, the amplitude of which is proportional to the offset specified slats about an axis of rotation. The block forming the output signal generates a constant voltage equal to the amplitude of the pulses coming from the block addition. The chart recorder and oscilloscope are used to register the output signal. Disabling blocks 7, 8, 9, 11, 12 and 13 and the signal from the photodetector 6 directly on the oscilloscope, the screen will be observed fluctuations collector motor.The proposed device can be used to control the displacement of the slats collector motor and measure the vibrations of the rotor of the electric motor during its operation, and to detect Assembly defects in the process of the acceptance test. Device for the light source of the laser, a two-beam optical system, photodetectors, characterized in that it is provided with a block of electronic keys, the unit pulse shaping milameline intervals, the block set of slats, block addition, the processing unit output signal and the rpm sensor, and the optical axis of the beams are positioned so that one of them is partially overlapped with the collector plates, and the other axis of the rotor, and the output of the photodetector, configured on the first beam connected to the first input of the pulse shaping milameline intervals and the first input unit of an electronic key, a second input connected to the output of the photodetector, configured on the second beam, to the second input of the pulse shaping milameline periods connected the rpm sensor, and its output connected with the control input of the electronic key, the outputs of which are connected to the unit of addition, the output of which is connected to the input of the block forming the output signal.
FIELD: measurement technology.
SUBSTANCE: according to method of contact-free optical measurement the object is placed between laser radiation source and photoreceiver. Power of laser radiation P is measured and compared with preset level of power P0 . Laser radiation is optically scanned into beam of parallel rays at the area where object finds its place and size of object is found from size of shade of object onto photoreceiver while correcting time of exposure from value of difference (P0-P). Device for realizing the method has laser, beam-splitting plate, short-focused cylindrical lens, output cylindrical lens, collimating lens, CCD, data processing unit, photoreceiving threshold unit.
EFFECT: improved precision of measurement.
5 cl, 1 dwg
FIELD: physics; measurement.
SUBSTANCE: invention is related to method, and also to device for measurement of component amount coming from surrounding gas atmosphere and received by parts in process of thermochemical treatment of metal parts. Sample, lengthwise size of which considerably exceeds its cross size, is exposed to gas atmosphere impact. Change of sample length in time in lengthwise direction is measured, being the result of component transfer from gas atmosphere, and measured change of length is used for determination of component amount that was transferred from gas atmosphere to sample. Method is performed isothermally or at changing temperature, at that change of length resulted from temperature change is compensated in calculations. In order to realise the method, device is used that incorporates clamp for sample used in method, system of length measurement for registration of sample length change in time in longitudinal direction, and also computing unit. Method provides possibility to obtain much more accurate data on amount of component coming from gas atmosphere and received by parts.
EFFECT: obtainment of much more accurate data on amount of component coming from gas atmosphere and received by parts.
14 cl, 11 dwg, 1 ex
FIELD: measurement equipment.
SUBSTANCE: method for contactless measurement of small objects sizes is realised with the help of device, comprising zoom, which is arranged in the form of single fixed, and also the first and second movable components. Considered object is placed in back focal plane of zoom. In back focal plane of zoom fixed component there are two calibrated frames arranged. Object image is subsequently matched with images of two frames, and position of movable component is fixed in process of this matching. Calculation of object size is carried out by two fixed positions of movable component, by size of frames and structural parametres of zoom.
EFFECT: provision of high accuracy of small objects linear dimensions measurement.
3 cl, 2 dwg
FIELD: machine building.
SUBSTANCE: pulse heat source with action time of where R - piping radius, d - wall thickness, a -temperature conductivity is installed on pulse heat source piping according to the method for determining the thickness of deposits on inner surface of piping, and temperature change is determined at the distance l=(2.5-3.5)d from the heating source. The device for determining the thickness of deposits on inner surface of piping is equipped with generator of current radio pulses, amplifier, analogue-to-digital converter, computing device, indicator of deposit thickness and indicator of deposit heat conductivity; at that, output of current radio pulse generator is connected to induction coil; amplifier input is connected to temperature sensor output; amplifier output is connected to input of analogue-to-digital converter; output of analogue-to-digital converter is connected to input of computing device; outputs of computing device are connected to indicators.
EFFECT: possibility of monitoring the deposits of small thickness and possibility of monitoring the pipes during performance of preventive actions when the process is stopped and pipes are dehydrated.
2 cl, 7 dwg
SUBSTANCE: silicon monocrystalline microheater is used as a displacement sensor and the value of heat lost from the microheater to a heat receiver serves as the measuring signal. The microheater has the shape of a variable section beam, the wide part of which is a resistor and has a region of opposite conduction type, and the narrow part is form of current leads having low-resistivity silicon regions and a silicide coating, wherein the end of the current leads is in form of a platform for forming metal contacts. Displacements vary from 5 to 800 mcm and measurement accuracy is equal to ±20 nm.
EFFECT: high accuracy and stability of sensor readings.