Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
  • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
  • G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
  • G01P5/18—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the time taken to traverse a fixed distance

Definitions

• the present invention relates to a Signal Medium Motion Measurement Apparatus (SMA) and medium motion measurement methods for measuring relative motion of a given medium and the measurement apparatus by means of sending and detecting a measuring signal and analyzing its tracking parameters.
• SMA Signal Medium Motion Measurement Apparatus
• the method of measurement of an air-flow (or water-flow) speed by Pitot tubes includes observation of two tubes with different shapes put in the same flow. Pressure difference in those tubes makes induction of motion of the flow and its speed relative to Pitot tubes. That difference is equal to square of the flow's speed.
• the method uses mechanical interaction with the flow.
• Another method includes measurement of wave propagation through the medium to make measurement of relative motion of the apparatus and the medium.
• the best example of such method is the operation of acoustic log broadly used in modern ships.
• a modern log In ships, a modern log includes a pair of electro-acoustic transducers located below the water surface along the body of the ship. In the operation mode, one of them produces acoustic waves. Another device detects those waves and measures the time required for them to pass the given distance between two transducers. Motion of the ship changes this interval in a way directly related to the speed of relative motion of the ship and the water.
• the medium motion measurement methods according to the invention present universal methods of measurement of motion of the Signal Medium Motion Measurement Apparatus (SMA) relative to medium and vice versa (relative motion of the medium and the apparatus). Those methods are applicable for any signal and workable in any appropriate signal-medium combinations.
• SMA Signal Medium Motion Measurement Apparatus
• FIG. 2 shows step-by- step a physical process of signal propagation through the medium and relative motion of the points of measurement to the same medium.
• Fig. 2 shows motion of the signal between those points by the medium and motion of the rigid frame of measurement that carries the points of measurement at the same distance from each other during the measurement. That is a particular case. It general case, constant distance between the points of measurement is not obligatory.
• the signal should cover distance X1-X4 in the aim to reach point X4.
• the signal travel duration (D) can be calculated by dividing distance XI -X4 by the speed of the signal (V) in the medium. In that case (one way measurement), they need two measuring devices located at the points XI and X4 (the points of measurement) to make measurement of one-way signal travel duration between those points.
• the speed of the signal propagation through the medium can be calculated by dividing distance between those points by duration of signal travel between the same points.
• the signal travel duration (D) can be calculated by dividing doubled distance XI -X4 by the speed of the signal (V).
• the speed of the signal propagation through the medium (by two-way measurement) can be calculated by dividing doubled distance between the points of measurement by the sum of durations of signal travel back and forth between them.
• duration of the entire process of the signal propagation from the point XI to the point X4 has some extent.
• the signal spends the same duration of propagation in the moving water. It that case, it covers the same distance between the points XI -X4 like in the case of motionless water.
• the water craft and the rigid frame of measurement XI -X4 moves relative to the water. It moves forward for some duration (DE) and takes location at the points 202-205 (X2-X5). Therefore, the signal should spend some extra duration (DE - extended duration) to reach the point X5 as the point of destination for the signal propagation in the medium in one-way measurement. As a result, the duration of the entire process of the signal propagation increases for some extent (DE).
• the spatial displacement of the craft in that case can be found by multiplication of the speed of the measuring signal in the water on the extra duration. It can be written mathematically like this
• V V ⁇ DE (4.1)
• W the speed of the craft
• W means the speed of the craft relative to the water.
• the speed of the measuring signal depends on temperature, salinity and pressure. Combination of those factors makes an impact on precision of measurement of W (the speed of motion of a watercraft relative to water (the surrounding medium)) by means of one-way signal propagation measurement.
• the proposed method is able to make measurement regardless of any negative factor.
• the key aspect of the proposed method includes measurement of extra parameters (duration) of measuring signal moving back and forth between the points of measurement.
• Figure 2 shows the signal in backward propagation below the X axe. To reach the point of origin the measuring signal should go back from the point X5. Coming back for the same duration (D) equal to its forward motion, it covers the same distance in the medium (water). That is the distance X5-X2 which is equal to X1-X4 and also equal to the spatial extent of the rigid frame of measurement.
• the rigid frame moves to the location 203-206 (X3-X6) for some duration.
• the point of destination for the measuring signal in backward motion moves from the point X2 to the point of X3. Therefore, the measuring signal meets the point of origin of the rigid frame sooner than expected, at the point X3 instead of the meeting at the point X2. That process excludes some duration of the signal backward propagation (excluded duration DL) from the duration (D) obtained at motionless condition of the watercraft.
• the distance X2-X3 depends on the speed of the watercraft relative to the water (medium) and appears as changed location of the rigid frame of measurement. That change is exactly equal to the change of location of the frame in the first part of the measurement (X4-X5) in which the same signal moves in the forward direction. Durations of both processes are the same and equal to the duration of the measuring signal propagation along the same value of the rigid frame extent that appears because of the water craft motion relative to the water. That aspect increases the duration of the measuring signal propagation in the forward direction and decreases the duration of the measuring signal propagation in the backward direction to the same extent. There is a key aspect of motion that appears here. The source of the measuring signal and the measuring signal itself moves independently to each other because interaction between the signal source and the measuring signal cuts off as soon as the measuring signal left the signal source.
• Doubled duration (D + D 2D) of the signal back and forth propagation along the rigid frame of measurement in the case of motionless (static) medium (motionless water craft)
• the Extended Duration (DE) equals to the Excluded Duration (DL) because of
• value of duration of the measuring signal propagation in a round trip measurement in the case of moving rigid frame, is ever equal to the value of duration of the measuring signal propagation in the motionless condition of the rigid frame relative to the medium.
• estimation of round trip duration of the measuring signal is not applicable to the determination of rigid frame motion relative to the medium anyway. In other words, that method of measurement is not applicable to the task.
• the experiment used a light source and a mirror.
• the result of the experiment appears as duration of the light propagation through the medium in two opposite directions (to and from the mirror).
• the measuring device (known as the Michelson interferometer) used two orthogonal light beams which make interference pattern.
• motion of the device through the luminiferous ether should make some difference (detectable by interference pattern) in duration of the light beams propagation in different directions (orthogonal directions used in the experiment).
• the device shows the same duration for the round trip propagation of a light beam in every direction.
• the obtained result was not explainable for Mr. Michelson because of insufficient understanding of underlying physical aspects of the measurement method he used.
• Equation 5.2 shows the same result mathematically.
• That point of view caused prohibition (in the prior art) for any attempt to detect any information at any given point of space sooner that an electromagnetic radiation reaches the same point. That is correct for the most part of information but inappropriate for information about the condition of counting devices.
• Two or more counting devices which use the same type of oscillating devices (devices with the same duration of oscillations) previously synchronized locally by means of any signal ever show the same indications regardless of their further operation at a remote location.
• counting devices keep the same indications despite the remote location of devices.
• indications of counting devices changes simultaneously regardless the distance separating those devices and regardless the duration that an electromagnetic signal (as well as any other signal) spends to cover that distance. That is applicable for any sort of signal and signal-medium combination in the general case.
• the counting devices local synchronization and remote operation method becomes independent from duration of any signal propagation through any medium. The method is described below.
• the counting devices local synchronization and remote operation method is suitable to make measurement of the measuring signal parameters of one-way propagation through the medium between the points of measurement.
• the method comprising the steps of:
• the emitting unit emitting the measuring signal from one of them (the emitting unit) to other unit(s) (the detecting unit(s));
• emission of the next measuring signal uses the same delay and indications of both counting devices become the same at the physically different moments of the measuring signal emission and detection. That coincides the zero duration of propagation of the measuring signal between emitting and detecting units located next to each other (to the case of zero distance between them). Therefore, both counting devices set for true zero to mutual operation.
• the counting device of the detecting unit detects some duration that the measuring signal spends to cover the distance separating the units (when the distance becomes greater than zero).
• the one-way method of measurement of electromagnetic signal propagation through the medium (space) becomes possible and realizable at the modern technical level especially when the distance between the devices becomes significantly greater than physical size of the devices.
• the following method is a counterpart of the LSROM. It makes remote synchronization and local operation of the counting devices and becomes the counting devices remote synchronization and local operation method (RSLOM)
• the counting devices remote synchronization and local operation method is suitable to make measurement of difference of indications of the counting devices located at remote points during the operation of synchronization.
• the method comprising the steps of:
• the emitting unit emitting the measuring signal from one of them (the emitting unit) to other unit(s) (the detecting unit(s));
• each sequence of measurement shows the same difference in indications of each pair of the emitting and detecting units caused their remote synchronization.
• the One-Way Method of Measurement is suitable to make one-way measurements in both cases of static or dynamic medium. However, it is not enough to make a determination of key values of the process of propagation in case of the dynamic medium.
• the Two-Way Method of Measurement is proposed to avoid that limitation.
• the Two-Way Method of Measurement makes measurement of motion of the medium relative to the points of measurement by determination of the measuring signal parameters of one-way propagation through the medium between the points of measurement in forward and backward directions. Each measurement has its own result.
• the method comprising the steps of: emitting the measuring signal from the first point of measurement;
• the Two-Way Method of Measurement has a key difference from a round trip measurement.
• a round trip measurement uses only full duration of back and forth propagation of the measuring signal through the medium.
• the Two-Way Method of Measurement uses two different durations. Durations of forward and backward propagations of the measuring signal through the medium (by TWM) determine themselves separately in each direction.
• TWM Two-Way Method of Measurement
• TWEM Two-Way Extended Method of Measurement
• the Two-Way Extended Method of Measurement makes measurement of motion of the medium relative to the points of measurement by determination of the measuring signal parameters of one-way propagation through the medium between the points of measurement in forward and backward directions. Each measurement has its own result.
• the method uses a distance measuring device (DMD) configured to make measurement of distance between the points of measurement. The method comprising the steps of:
• TWM is suitable for measurements in any case when the points of measurement have locations far away from each other. Otherwise, TWEM becomes the preferable one because it gives more information from measurements by the extra device.
• FIG. 1 is a view schematically illustrating the internal composition of a Signal Medium Motion Measurement Apparatus (SMA) according to the embodiment of the present invention. The figure shows two identical apparatuses operating together.
• SMA Signal Medium Motion Measurement Apparatus
• FIG. 2 is a view schematically illustrating the process of signal propagation through a medium in forward and backward directions relative to medium and to the rigid frame of measurement
• FIG. 3 is a view schematically illustrating a TSVD Mode of operation of Signal Medium Motion Measurement Apparatuses (SMA) according to the embodiment of the present invention
• FIG. 4 is a view schematically illustrating the apparatus with extra unit located remotely
• An apparatus comprising:
• an oscillating device 111 configured to make oscillation with a given duration (of each oscillation) suitable for the measurement of the duration of the measuring signal propagation through the medium;
• a counting device 112 configured to count oscillations of the oscillating device
• TD transmitting device 113
• a detecting device 114 configured to make detection of tracking parameter(s) of the measuring signal 104;
• a registering device 115 configured to store number of counts of the counting device at the moment(s) of the measuring signal tracking parameter(s) change(s);
• a communication device 116 configured to send and receive the communication signal(s) by a communication channel 105;
• control device 117 configured to control the counting device 112, the transmitting device 113, the detecting device 114, the registering device 115 and the communication device 116;
• Any method of measurement mentioned above uses at least two apparatuses. Those are Signal Medium Motion Measurement Apparatuses (SMA). According to the aim of measurement the apparatuses use some different modes of operation described below in details.
• SMA Signal Medium Motion Measurement Apparatuses
• TWSPM TWO-WAY SIGNAL PROPAGATION MEASURMENT
• Two-way signal propagation measurement includes two one-way signal propagation measurements. Those measurements can be conducted consequently one-by-one. Moreover, in case of reflection (a sort of manipulation) of the measuring signal at the second point of measurement, two-way measurement becomes possible by the same measuring signal coming back and forth between the points of measurement.
• the counting devices of the apparatuses 112 and 122 used the counting devices local synchronization and remote operation method (LSROM) before switching to the operation mode.
• the apparatuses in the operation mode located at some remote points of measurement (A and B).
• the tracking parameters of the measuring signal are the beginning of the signal and the end of the signal.
• the rigid frame responsible for the measurement comprises both apparatuses and the distance measuring device 106 (DMD)
• each apparatus (112 and 122) counts oscillations of the local oscillating device and store counted number of oscillations between an oscillation and the next one.
• At least two apparatuses 101 and 102 are necessary to make measurement. Initially, the apparatuses positioned next to each other.
• the apparatus 101 makes the following steps:
• the control device 117 sends a control signal to the communication device 116.
• the signal carries the command Activate Synchronization Waiting Mode (ACTIVATE_SWM)
• the communication device makes transmission of the control signal to the communication device 126 of the apparatus 102 by a communication channel 105
• the communication device 126 sends the command (ACTIVATE_SWM) to the control device 127 4.
• the control device turns internal devices of the apparatus 102 to the Synchronization Waiting Mode (SWM)
• the control device 117 generates the control signal (command) of full reset (FULL_RESET) for the apparatus 101.
• the control device 117 prepares the counting device 115 to send a control signal (TRANSMISSION_START) to the measuring signal transmitting device 113 by a known value of indication (zero, in a particular case) of the counting device b.
• the control device 117 sets indications of the counting device 112 to a known value (to zero, in a particular case)
• the counting device 115 turns on the measuring signal transmitting device 113 as soon as it has a known indication (zero indication) from the counting device 112
• the control device 127 of the apparatus configures the counting device 122 to receive reset signal from the measuring signal detecting device 124.
• the apparatus 102 staying in the synchronization waiting mode makes the following steps to complete the task of synchronization by upcoming measuring signal:
• the measuring signal detecting device 124 makes detection of the upcoming measuring signal 103 coming from the apparatus 101.
• the measuring signal detecting device 124 sends the reset signal to the counting device 122 and sets its indication to a given value (to zero, in a particular case)
• the measuring signal detecting device 124 sends also the confirmation signal to the control device 127 that gives confirmation to the control device of completed synchronization
• the control device 127 sends confirmation signal (SYNCHRONIZATION_COMPLETED) to the apparatus 101 by means of the communication device 126
• the control device 117 of the apparatus 101 activates the measurement mode of the apparatus and sends a confirmation message (SYNCHRONIZATION_COMPLETED) to the apparatus 102.
• the control device of apparatus 102 turns the apparatus to the measurement mode. As a result, both apparatus turn to the measurement mode and become ready to make measurement.
• the control device of the apparatus 101 sends signal (MOVE_BACK) to the servo drive (not shown in the figure).
• the servo drive moves the apparatus 102 along the Distance Measuring Device 106 (DMD) away from the apparatus 101.
• the device 106 (DMD) sends some information to the apparatus 101 about location of the apparatus 102 (spatial distance that separates both apparatuses) by means of an interface device (not shown in the figure).
• the device 106 comprising:
• a number of wires that can make mechanical and electrical contact with the sliding contact of the apparatus at given points A soon as the apparatus 102 reaches a point of measurement, the sliding contact makes electrical contact between wires and the apparatus 101 takes information about location of the apparatus 102 (by the electrical signal from a wire) at the point of measurement (about the location of the apparatus 102 at a given point of measurement).
• the control device 117 of the apparatus 101 sends a control signal (FULL_STOP) to the servo drive as soon as the wire signal comes to the apparatus.
• the servo drive stops operation.
• the apparatus 102 stops its motion also at a given location and at a given distance from the apparatus 101. The apparatuses are ready to make measurements.
• control device 117 makes configuration of the apparatus 101. That operation comprises of:
• registering devices 115 receives information from the counting device 112. As soon as an indication of the counting device becomes equal to the value stored in the emission start register of the registering device, the registering device turns on the transmitting device 113 and the measuring signal 103 begin propagation through the medium.
• Emission of the measuring signal lasts for some duration. That duration is equal to the difference between values stored in the emission start and the emission stop registers of the registering device 115. As soon as an indication of the counting device becomes equal to the value stored in the emission stop register, the registering device stops operation of the transmitting device 113 and cuts off transmission of the measuring signal.
• the apparatus 102 operating in the reflection measurement mode waits for the upcoming measuring signal.
• the detecting device 124 makes detection of the measuring signal 103, it sends confirmation signal (DETECTION_START) to the registering device 125.
• the registering device 125 stores the indication of the counting device 122 in the detection start register (DSRB) at the moment when DETECTION_START signal comes to the device.
• the detecting device 124 As soon as the detecting device 124 loses detection of the measuring signal 103, it sends confirmation signal (DETECTION_STOP) to the registering device 125.
• the registering device 125 stores the indication of the counting device 122 in the detection stop register (DPRB) at the moment when DETECTION_STOP signal comes to the device.
• the registering device 125 sends confirmation signal (MEASURMENT_FINISHED) to the control device 127 about the completed circle of measurement at the point of measurement.
• the one-way measurement of the measuring signal propagation through the medium in the forward direction completed at this stage.
• the control device 127 uses the signal MEASURMENT_FINISHED as confirmation and reads indications of both registers (the detection start register (DSRB) and the detection stop register (DPRB)).
• the control device sends indications of both registers to the apparatus 101 by means of the communication device 126 that uses the communication channel 105. That is the key aspect of apparatus operation.
• the apparatus 102 makes measurement and sends results of the measurement asynchronously.
• the reflecting device of the apparatus 102 (not shown in the figure) makes reflection of the measuring signal 103 and sends it back to the apparatus 101 as a measuring signal 104. Operation of the apparatus 102 and the process of reflection of the measuring signal from the reflecting device are independent to each other. As a result, both processes physically independent from each other.
• the detecting device 124 sends also confirmation signals DETECTION_START and DETECTION_STOP to the transmitting device 123.
• the transmitting device 123 starts transmission of the measuring signal 104 back to the apparatus 101 at the moment when confirmation signals DETECTION_START comes from the detecting device 124 and cuts off transmission of the measuring signal at the moment when the confirmation signals DETECTION_STOP comes from the detecting device 124.
• the apparatus 101 waits for the measuring signal 104 coming back from the apparatus 102. A soon as the measuring signal 104 comes back to the apparatus 101 the measuring signal detecting device 114 begins detection of the measuring signal. It sends a confirmation signal DETECTION_START the registering device 115.
• the registering device 115 stores the indication of the counting device 112 in the detection start register (DSRA) at the moment when DETECTION_START signal comes to the device.
• the measuring signal detecting device 114 of the apparatus 101 loses the measuring signal, it sends a confirmation signal of the lost detection DETECTION_STOP to the registering device 115.
• the registering device 115 stores the indication of the counting device 112 in the detection stop register (DPRA) at the moment when DETECTION_STOP signal comes to the device.
• the registering device 115 sends confirmation signal (MEASURMENT_FINISHED) to the control device 117 of the apparatus 101.
• confirmation signal MEASURMENT_FINISHED
• the one-way measurement of the measuring signal propagation through the medium in the backward direction completed at this stage.
• the control device of the apparatus 101 uses the confirmation (MEASURMENT_FINISHED) and waits for the information message of the measurement from the apparatus 102. As soon as the information of measurement comes from the apparatus 102 to the apparatus 101 by the communication channel 105, the apparatus 101 becomes ready for determination of searching values.
• the apparatus 101 makes some preliminary determinations including determination of one-way duration in both directions (DF and DB) and duration of round trip (DW). It determines the duration of the round trip of the measuring signal (DW) as a difference of data of the detection start register (DSRA) and transmission start register (TSRA) of the registering device 115 (apparatus 101):
• the apparatus 101 determines the duration of one-way measuring signal propagation in the forward direction (DF, propagation of the measuring signal from the apparatus 101 toward the apparatus 102) as the difference of indications of the detection start register (DSRB) of the registering device 125 (apparatus 102) and the transmission start register (TSRA) of the registering device 115 (apparatus 101):
• the apparatus 101 determines the duration of one-way measuring signal propagation in the backward direction (DB, propagation of the measuring signal from the apparatus 102 toward the apparatus 101) as the difference of indications of the detection start register (DSRA) of the apparatus 101 and detection start register (DSRB) of the apparatus 102:
• the apparatus Using obtained values, the apparatus begins determination of the main parameters.
• the proposed method there is not any difference between apparatuses in their capability to make measurements and determination of searching values. Therefore, all tasks described for the apparatus 101 is applicable to the apparatus 102 in determination of the searching values. Moreover, both apparatuses can make a determination of the searching values by themselves and compare the result. To do that the apparatus 101 sends an information message comprising of indications of registers of the registering device 115 to the apparatus 102.
• Doubled duration (D + D 2D) of the signal back and forth propagation along the rigid frame in the case of motionless medium relative to the frame
• the Extended Duration (DE) equals to the Excluded Duration (DL) because of relative motion of the rigid frame and the measuring signal.
• duration of the measuring signal propagation in two-way measurement is ever equal to the duration of the same signal propagation (back and forth) along the same rigid frame in the motionless condition of the medium.
• the duration of propagation of the measuring signal in the forward direction (DF) from point A (location of the apparatus 101) to the point B (the location of the apparatus 102) can be determined as a difference in readings of the counting devices at the moment of emission of the measuring signal from the point A and the moment of detection of the measuring signal at the point B. It can be written as:
• Duration of propagation of the measuring signal on the backward direction can be determined the same way using the readings of the measuring device at the moment of measuring signal detection at the point B (CB) and readings of the counting device located at the point A at the moment of detection of the measuring signal coming back (CC). It can be written as:
• duration of the measuring signal propagation in the forward direction is equal to the duration of the measuring signal propagation in the backward direction ONLY in the case of motionless condition of the medium RELATIVE to the points of measurement.
• the speed of motion of the medium relative to the measuring points can be estimated by the following way.
• Entire duration (DW) of the signal propagation in both directions equals to the sum of durations of the measuring signal propagation in each direction.
• DW DF + DB.
• duration of the measuring signal propagation in the medium along the rigid frame regardless of relative motion of the medium and the measuring points ever equals to half of the entire duration of the process of propagation of the measuring signal through the medium in opposite directions between measuring points of the rigid frame. It can be written as:
• extended duration of motion (DE) and excluded duration of motion (DL) can be also determined easily as a difference between duration of one-way motion of the measuring signal in static and dynamic medium. Therefore, extended duration (DE) can be determined as:
• the speed of the measuring signal propagation through the medium regardless of condition of the medium can be obtained by dividing the sum of distance that separates the points of measurement (SLA, Spatial Length A-B) and (SLB, Spatial Length B-A) on duration (DW) of back and forth propagation of the measuring signal through the medium. That can be written as:
• V (SLA + SLB) / DW (15.10)
• the value V becomes determined using any given distance separated the points of measurement SLA and SLB by information from the distance measuring device 106 (DMD).
• the spatial displacement of the medium relative to the measuring points (S) can be determined by multiplication of the speed of the measuring signal in the medium (V) on the extended duration (DE) (see 4.1). It can be written mathematically for the general case by the following way:
• the spatial displacement of the medium relative to the points of measurement can be determined also by multiplication of the speed of the measuring signal in the medium (V) on the excluded duration (DL). It can be written mathematically the following way:
• the speed of the medium motion relative to the points of measurement can be found as spatial displacement divided on the full duration of one-way signal propagation (D + DE)
• the apparatus 101 makes stability analysis. As long as both apparatuses have zero radial velocity of motion relative to each other the measuring signal has the same duration at both points of measurement. Otherwise, durations of the same measuring signal at both points become unequal to each other.
• the apparatus 101 uses that aspect to make a determination of relative motion of the apparatuses.
• the difference of durations (DD) at both points of measurement can be determined as deviation between duration of the same measuring signal.
• the apparatus 101 makes the determination of the duration of the measuring signal at the point A
• DDA transmission stop register
• the apparatus 101 makes the determination of the duration of the measuring signal at the point B
• DDB detection stop register
• DSRB detection start register
• the deviation of durations (DD) can be determined as the difference between durations of the same measuring signal at the point B (DDB) and at the point A (DDA) as:
• the radial velocity (VR) of the apparatus 102 relative to the apparatus 101 can be determined as spatial radial relocation (SR) divided by duration of the measuring signal (DDA) taken at the first point of measurement (the point A):
• the radial velocity unequal to zero means some instability of the frame of measurement. However, that means not any problem to the measurement itself giving one extra parameter that can be found by the proposed method of measurement.
• the apparatus 101 makes also determination of measurement errors. According to the section 5, value of extended duration (DE) should be ever equal to the value of excluded duration (DL) in any two-way measurement (5.1).
• the apparatus 101 keeps information of errors and makes comparison between errors coming from any given measurement and the first measurement taken after the last circle of synchronization. As long as the error keeps its value in any given range it appears as instrumental error (statistical error).
• error possesses some steady component that has either positive or negative trend. This case means that the oscillating devices of the apparatuses show some inaccuracy. As a result, indications of counting devices of both apparatuses show not the same indications simultaneously, and the apparatuses need the next circle of synchronization.
• Propagation of a signal in a medium creates one side effect.
• the signal makes equal propagation at every direction for any given duration because the speed of a signal in a medium depends only on the type of the signal and medium condition.
• ODSLM One-Way Signal Length Measurement
• OWSPM One-Way Signal propagation Measurement
• Determination of the measuring values in OWSLM Method comprises determination of the physical length of the measuring signal that it takes in forward and backward motion.
• Physical length of the measuring signal in the medium relative to the rigid frame of measurement can be determined by dividing one way propagation duration (DF or DB) by the speed of the measuring signal in the medium (V). It can be written mathematically the following way:
• the measuring signal has the same propagation in every direction from the point of the signal emission and the same speed in the medium, but different physical length in forward and backward motion detectable for (regarding to) the rigid frame of measurement moving relative to the medium because both determinations use the measuring signal going back and forth between the points of measurement.
• the measuring signal keeps the same physical length in every direction.
• the proposed method determines the difference in physical length on the measuring signal in every pairs of opposite directions (excerpt of directions positioned at the right angle to the medium velocity).
• the embodiment described above is useful to make measurement of component of medium motion or projection of the medium velocity on the straight hne connecting the points of measurement.
• the velocity of the medium does not match the direction of the straight line connecting the points of measurement.
• TSVD True Space Velocity Detector
• the embodiment for carrying out the invention mentioned above uses two apparatuses. It is enough to make measurement of the medium motion in one direction or component motion of the medium (projection of the medium motion vector on the straight line connecting the points of measurement).
• TSVD mode of operation (or the best mode of operation) is needed to make measurement of full velocity of the medium relative to the apparatuses located at the points of measurement.
• TSVD mode uses four apparatuses.
• Figure 3 shows their mutual location. According to the figure there are apparatuses 301 (O), 302 (X), 303 (Y) and 304 (Z). They make a reference frame (a rigid frame of measurement). Each arm of the frame (OX, OY, and OZ) presents an axe of reference mutually independent from other axes by right angle between each pair of arms.
• Apparatuses use the counting devices local synchronization and remote operation method (LSROM).
• LSROM local synchronization and remote operation method
• the embodiment that uses the mentioned method is described in details in the sections 13 and 14. Therefore, the embodiment that comprises four apparatuses has three measuring devices to make measurement of spatial distances between apparatuses O-X, O-Y and O-Z.
• Apparatuses X, Y and Z use servo drives controlled by the control device of the apparatus O like mentioned in the section 14.
• the apparatus O bring apparatuses X, Y and Z to the closest location with the apparatus O by means of servo drives.
• Apparatuses X, Y and Z turn to the synchronization waiting mode (SWM).
• apparatus O makes synchronization sequence in accordance with the counting devices local synchronization and remote operation method (LSROM) (described in the section 7).
• LSROM local synchronization and remote operation method
• the apparatus O waits for confirmation message (SYNCHRONIZATION_COMPLETED) from each other apparatus (X, Y and Z). As soon as those messages come from those apparatuses. All of them become ready to operation in TS VD Mode.
• the control device of the apparatus 0 changes locations of apparatuses X, Y and Z by means of servo drives and sets them at a given distance suitable for the measurement.
• the process of relocation is described in the section 14.
• the apparatus O emits the measuring signal.
• the measuring signal reaches apparatuses X, Y and Z.
• the apparatus O waits to the measuring signals come back from other apparatuses.
• the apparatus 0 makes detection of the measuring signals coming back from other apparatuses and collecting information from other apparatuses by the communication channel about indications of their counting devices regarding the circle of measurement. That sequence of operations is described in details in the section 14 (for a pair of apparatuses).
• the apparatus O makes a determination of each component of motion of the medium relative to the points of measurement. That sequence of operations of measurement in each direction is described in details in the section 14. As a result, the apparatus O makes a determination of extended duration of the measuring signal propagation in each direction. Those are extended duration in the direction OX (DEX), extended duration in the direction OY (DEY), extended duration in the direction OZ (DEZ).
• the apparatus O makes a determination of the component displacement of the medium relative to the measuring points (S) by multiplication of the speed of the measuring signal in the medium
• the apparatus O makes a determination of component velocity of the medium relative to the points of measurement 321 (W) by dividing spatial displacement on full duration of the measuring signal propagation on the same direction (shown in the fig.3 as vectors 322 (WX),
• IWI SQRT(WX'WX + WY'WY + WZ-WZ) (19.8)
• Apparatuses using the TSVD Mode make detection of medium motion regardless of any other motion around them.
• propagation of electromagnetic signals in the medium forms the Dynamic Reference Frame independent from any motion of any physical object in that reference frame (including the apparatuses). That is motion in the Zero Reference Frame (ZRF) or Absolute Motion (AM).
• ZRF Zero Reference Frame
• AM Absolute Motion
• the Zero Reference Frame itself is the absolute reference frame at rest.
• the motion of the rigid frame of measurement in case of usage of electromagnetic signals appears as absolute motion relative to the reference frame of absolute rest.
• the proposed method of motion determination is applicable to every possible location of the rigid frame of measurement in space and its orientation.
• apparatuses operating in TSVD Mode and mounted on any celestial body makes detection of motion of the medium (space, physical vacuum etc.) relative to the body by means of electromagnetic measuring signals involved in two-way measurement. Because the motion of the celestial body can be understood as motion in the opposite direction to the vector of medium motion, proper motion of the body in space can be determined as motion in the opposite direction to the vector of medium motion.
• ZRF Zero Reference Frame
• IWPI SQRT((-WX)-(-WX) + (-WY)-(-WY) + (-WZ)-(-WZ)) (19.7)
• the apparatus O makes a determination of its proper motion in space (WP vector not shown in the fig. 3) (in ZRF) relative to the points of measurement by summarizing negative values of orthogonal components of obtained velocities in each direction of measurement.
• WP vector not shown in the fig. 3
• ZRF ZRF
• the Zero Reference Frame is the absolute reference frame at rest in which all electromagnetic radiation makes propagation.
• the apparatuses in TSVD Mode can be mounted on the Earth. As a result, they make a determination of the medium motion relative to the apparatuses located at the points of measurement and the Earth's velocity (or motion through the medium, space, physical vacuum, luminiferous ether and etc.) as the vector opposite to the vector of medium motion.
• TSVD Mode gives solution of so called “closed laboratory measurement” because the apparatuses in that mode continue their operation and make measurements of the medium motion relative to the points of measurement in a location isolated from any interaction with anything else.
• TSVD Mode (number of apparatuses operating together) can be used to make One- Way Signal Deviation Measurement.
• That measurement is more suitable when apparatus O detect some trend of error steady component coming from any other apparatus (X, Y or Z). That means necessity of the next circle of synchronization. As mentioned above, that procedure needs all apparatuses to be brought back together again. Therefore, additional measurement becomes possible.
• the control device of the apparatus O sets them at a given distance (the same distance) from the apparatus O and makes synchronization circle. That way of synchronization means the counting devices remote synchronization and local operation method (RSLOM) because of the remote location of other apparatus from the apparatus O at the moment of synchronization.
• RLOM remote synchronization and local operation method
• the upcoming measuring signal sets counting devices of the apparatus X, Y and Z to a given value (to Zero value in a particular case) as soon as it reaches the apparatuses. Then, all apparatuses come back to the apparatus O by means of servo drives.
• Apparatus O makes a circle of measurement.
• Apparatuses X, Y and Z detect the measuring signal at the closest location to the apparatus O.
• the measuring signal duration of propagation through the medium between the apparatus O and other apparatuses drops to zero.
• apparatuses X, Y and Z detect the measuring signal without any delay and send information message to the apparatus O by the communication channel usual way.
• the measuring signal propagation duration at any given distance through the medium is independent of the direction of the measuring signal propagation.
• the dynamic medium medium has some motion relative to the points of measurement
• those durations become unequal.
• one-way synchronization by the measuring signal causes some deviation (difference) in readings of counting devices of the apparatuses (in case of the dynamic medium).
• the apparatus O determines the deviation of one-way measuring signal propagation in the forward direction (DF, propagation of the measuring signal from the apparatus O toward another apparatus) as a difference of indications of the detection start registers of registering devices of every pair of other apparatuses as:
• Values DSX, DSY and DSZ show rate of components of the medium motion at every direction of measurement (e.g. X, Y and Z). In other words, if that rate equal to 1 then the medium produces equal latency for the measuring signal propagation at every direction.
• the rate becomes unequal to 1 and some detectable difference appears as the measuring signal covers the same distance in different directions by different durations.
• One-way Signal Deviation Measurement makes the common idea of counting devices synchronization unproved because indications of any pair of counting devices depend on distance and their mutual locations at the moment of synchronization by an electromagnetic signal.
• TWO-WAY SIGNAL PROPAGATION NATIVE MEASURMENT TWNM METHOD OF OPERATION AND SUPPORTING APPARATUS
• TWSPM two-way signal propagation measurement
• That method is applicable to the same apparatus that has some extension positioned at a remote location (TWNM mode). Only one apparatus is needed to make operation in TWNM mode.
• the apparatus uses the value of distance between itself and the remote extension as a given constant distance.
• the extended version of embodiment of the apparatus comprising:
• an oscillating device 411 configured to make oscillation with a given duration (of each oscillation) suitable for the measurement of the duration of the measuring signal propagation through the medium;
• a counting 412 (CD) device configured to count oscillations of the counting device
• TDL local emitting device 413
• DDL local detecting device 414
• TDR remote emitting device 423
• DDR remote detecting device 424
• a registering device 415 configured to store number of counts of the counting device at the moment(s) of the measuring signal tracking parameter(s) change(s);
• a communication device(s) 416 configured to send and receive signal(s) to (from) the remote extension of the device by a communication channel;
• a control device 417 configured to control the counting device, the local and remote transmitting devices, the local and remote detecting devices, the registering device and the communication device;
• the apparatus uses the Two-Way Native Method (TWNM) of operation taking information from the local and remote points of measurement by local and remote emitting and detecting devices.
• TWNM Two-Way Native Method
• the apparatus makes registration of events of the measuring signal propagation by indication of the only one counting device 412. That is the key aspect of the method. Determination of other parameters of the measuring signal propagation through the medium coincides with the description given in the section 15.
• the same apparatus 401 takes information from the measuring signal at the point of its location (point A) and from a remote point (point B) where the extension 402 is installed.
• the apparatus is able to operate in any medium and in any condition of the medium. That aspect is highly useful in aerial and marine applications.
• the same embodiment of apparatus mounted onboard of a craft can be used to the determination of the craft motion relative to water or air by the same proposed method. As soon as the watercraft becomes submerged the apparatus continues its proper operation despite any physical changes of water like pressure, salinity, temperature and etc.
• Such stability of operation rests on the ability of the apparatus to make estimation of the measuring signal speed of propagation in the medium at the point of measurement (the location of the craft).
• the device makes a determination of the measuring signal speed of propagation at each measurement.
• the error of measurement of relative motion of the craft and the medium drops significantly in comparison with any other method based on tracking a measuring signal propagation through a medium.
• the way of operation of the apparatus is independent of a medium (and its physical condition) in which a measuring signal makes propagation. Therefore, the same apparatus is capable to make correct operation in different mediums.
• an apparatus mounted on board of a flying boat makes correct operation in water during takeoff and landing and in the air during flight.
• the apparatus makes a determination of the using medium (air or water) by the difference of the speed of the measuring signal propagation in this or that medium.
• the apparatus has one more significant advantage. Unlike Pitot Tubes, it makes only emission and detection of the measuring signal in the medium (air or water) in which the craft makes motion.
• the apparatus is free from all problems related to Petit Tubes like dependence on air (water) pressure (water salinity etc.), inability of operation under some condition (frozen petit tubes) and etc. That aspect makes the apparatus in two-way signal propagation native measurement (TWNM) mode the best device to conduct measurement of a craft motion relative to the native medium like air or water.
• TWNM signal propagation native measurement

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• 2014
  • 2014-05-08 WO PCT/IB2014/061286 patent/WO2015040505A2/fr not_active Ceased
  • 2014-05-08 EP EP14729725.3A patent/EP3198286A2/fr not_active Ceased
  • 2014-05-08 AU AU2014322789A patent/AU2014322789A1/en not_active Abandoned
• 2020
  • 2020-12-23 AU AU2020294273A patent/AU2020294273A1/en not_active Abandoned

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