135 results about "Mechanical counter" patented technology

This invention discloses a ultrasonic wave detector and detection method thereof, which contains ultrasonic wave probe and linkage device, transmitting/receiving circuit, control/process unit, display device and man-machine conversion interface, wherein the ultrasonic wave probe and linkage device having probe position equal displacement moving signal generator composed of mechanical counter or photoelectric mouse structure synchronous moved with probe, generating pulse displacement mark signal of horizontal scale and/or ordinate scale or grid mark signal, synchronous control transmission circuit generating high voltage excitation pulse to probe which generating ultrasonic wave and transmitting to tested object by coupling. Said invention overcomes the image distortion due to non uniform speed movement.

The invention discloses an adjustable-assembly parameter endurance testing device for electromagnetic relays and relates to an endurance testing device for the electromagnetic relays. The invention solves the problem that it is impossible to research the influences of the traditional endurance testing device for the electromagnetic relays on the matching relationship between an electromagnetic attraction force and a mechanical counter force and on the electrical endurance by changing an assembly parameter. Adjusting blocks are arranged on a first screw by threaded connection; the lower end of a vertical adjusting device is fixedly arranged on upper end faces of two vertical plates and is positioned on the same side of the two vertical plates; two fixing blocks are symmetrically arranged on the front side wall of the vertical adjusting device; two sensor supports are symmetrically fixed on the front side wall of the vertical adjusting device and are positioned between the two fixing blocks; and two pressure sensors are positioned on the two sensor supports and are in sliding connection with the sensor supports respectively. The device makes it is possible to research the influences of the device on the matching relationship between the electromagnetic attraction force and the mechanical counter force by changing the assembly parameter and on the electrical endurance of the electromagnetic relays.

An apparatus for the strengthening and rebuilding of the muscles of the pelvic floor includes a center generally flat main resistance spring that includes a generally U-shape. The main resistance spring supplies a force which urges separation between a first end and an opposite second end of the main resistance spring. A surrounding case provides a stop mechanism to limit further separation of the first end with respect to the second end. A secondary resistance spring is attached to an interior of the main resistance spring and is used to supply an increase in overall resistance as well as to actuate an optional mechanical counter. An optional pair of auxiliary resistance bands are provided and are urged within a longitudinal channel to vary the magnitude of overall resistance. An optional handle is included to aid in transportation.

A hydraulic pumping unit is composed of mechanical facilities, detecting controller and hydraulic controller. It features that the voltage conversion and frequency conversion are used to control the speed of motor and in turn the speed of pumping unit, and a mechanical counter weight is used to reduce the power needed by pumping unit itself and effectively use the potential energy of downward stroke. Its advantages include optimal speed curve and efficiency, stepless speed and stroke regulation, and overload, off-load, overcurrent and instantaneous stall protections.

Structure and method for counting a predetermined number of counts is provided. A count end value is identified which is greater than or equal to (not less than) the predetermined number of counts. The count end value is chosen such that it is representable by n symbols (designated n-1, n-2, . . . , m, m-1, . . . , 1, 0) where the most significant n-1 through m symbols are a first binary symbol and the least significant m-1 through 0 symbols are a different second binary symbol, for example "1"0 and "0". An n-symbol current count value (also representable by n-1, n-2, . . . , m, m-1, . . . , 1, 0 symbols) is initialized to a count start value which is equal to the count end value minus the predetermined number of counts, then as the counter counts, the current count value is incremented by one (or some other count increment) for each count or cycle of the counter. After each iteration (or before the next iteration of the counter cycle) each of the n-1, . . . , m symbols are compared with the first binary symbol. If the n-1, . . . , m symbols match, a count completed indicator is generated signifying that the desired count has been reached. Due to the manner in which the count values are chosen, it is not necessary to examine or compare the other m-1, . . . , 0 symbols. A counter structure, including an electronic counter, a mechanical counter, and a method for designing a counter are also provided.

A ternary non-clobber character wheel dial sensor includes a mechanical counter frame, a mechanical character wheel arranged on a shaft in the frame, flexile printed circuits inserted in the character wheel and a connecting bottom plate. The sensor is characterized in that the radial plane of the character wheel is zoned and coded according a ternary coding method. The left flexible printed circuit of the character wheel is equipped with three light emitting diodes for lighting. The relative position of the right flexible printed circuit is equipped with three receiving triodes for reading. The flexible printed circuit is electrically connected with a microprocessor through the connecting bottom plate bus. The beneficial effects of the invention are that binary code discs are substituted by ternary code discs. No clobber is on any position of a code disc. Compared with a present five bits binary code disc, the quantity of the photodiodes and photo triodes is reduced by two fifths. And the aims of simple structure, convenience, practicality and lowered cost are achieved. The invention can be applied various metering instruments using mechanical counter and absolute code angle displacement sensors.

The invention relate to a full-automatic step counting device based on upper arm swinging, and belongs to the technical field of human body motion information detection. The full-automatic step counting device comprises a casing, a swinging hammer, a fixing shaft, a limit post, an upper pawl, a lower pawl, a ratchet wheel, a transmission shaft, a drive gear, a mechanical counter and the like, wherein the casing is worn in the position of a wrist through a wrist strap; the swinging hammer is fixed on the casing through the fixing shaft; when an arm swings back and forth, the swinging hammer generates swinging opposite to an arm swinging direction under the action of inertia; bi-directional swinging of the swinging hammer is converted to unidirectional marching type rotation of the ratchet wheel by a ratchet-and-pawl mechanism; the rotation of the ratchet wheel is transmitted to the drive gear through the transmission shaft; the drive gear is meshed with last character wheel shifting teeth of the mechanical counter; and the mechanical counter counts and displays according to times of marching type rotation. The counting device provided by the invention can provide accurate fitness information for a user, has stronger interference resistance capacity, requires no power source and has unique advantages of energy conservation and environment protection.

The invention discloses an electronic counting method for mechanical counters and a counter therefore, wherein one character wheel of a mechanical counter is provided with an encoding structure to be a sampling character wheel; an electronic system reads codes via a sensor and an arc region corresponding to the codes, utilizes at least one arc region as counting characteristic position, compares the arc region sampled in this time with an arc region sampled in last time, judges if the sampling character wheel passes the characteristic position in rotation, if passes, counts and stores. The technical scheme is that: the electronic system realizes electronic counting and stores number via timely sampling, reading codes, judging counting and electronically storing, thus completely replacing prior pulse mechanical counters. The counter has the advantages of strong interference resistance, low measurement error, high reliability, low power consumption and long service life. Compared with direct read mechanical counters, the invention reduces manufacture cost significantly and obtains high performance price ratio.

A Bubble interference restraining method of a photoelectric direct reading water meter sensor is suitable for a water meter which conducts electric signal encoding output on reading displayed by a mechanical counter through a photoelectric technology. The photoelectric direct reading water meter sensor comprises a sing-chip microcomputer, a communication interface component, a direct current power supply component and multiple sets of photoelectric sensor encoder components of a photoelectric sensor composed of photosensitive receiving tubes and photoemissive tube geminate transistors, single-chip microcomputer I/O ports connected with the photosensitive receiving tubes have the programmable output function and the pull-up input function, and switching of the output function and the pull-up input function of the ports is conducted so as to finish different power supply connection of the photosensitive receiving tubes, so that the sampling resistor of each photosensitive receiving tube is switched between a single external connection sampling resistor (Rn-1), and a pull-up resistor (R) of the internal single-chip microcomputer I/O port connected with the external connection sampling resistor (Rn-1) in series, the sensing sensitivity of the photosensitive receiving tubes is adjusted by adjusting the sampling resistors of the photosensitive receiving tubes to achieve the function of restraining interference of the bubbles. The bubble interference restraining method of the photoelectric direct reading water meter sensor has the advantages of being strong in bubble interference resistance, low in cost and simple to implement.

The invention discloses a watch step-counting accuracy detection device capable of automatically leveling. The device comprises a driving motor, a mechanical counter, a vibration-reducing bottom column, a power indicator, a liquid crystal display, a speed control button, an emergency stop button, a device switching button, a control panel, non-slip supporting legs, a power connector, a detection device main body, a watch swing arm and a swing arm braking apparatus. The watch step-counting accuracy detection device disclosed by the invention is provided with the swing arm braking apparatus, during use of the watch step-counting accuracy detection device, after the driving motor is powered off to stop working, the watch swing arm simultaneously stops swinging, and the condition that the detection result is different from the accuracy value because the watch swing arm continuously swings due to inertia is avoided. According to the vibration-reducing bottom column arranged below the detection device main body, the device can be automatically adjusted to enable the detection device main body to be located in a horizontal state, and the detection result accuracy of the watch step-counting accuracy detection device is effectively improved.

The invention relates to an oil surface thermograph for a transformer, which is used for detecting and controlling oil temperature of the transformer and comprises a casing 1, a thermograph control module 2, terminals 3, a mechanical counter 4, a temperature sensor 5 and a synchronous pulley component 6, wherein the thermograph control module 2, the terminals 3, the mechanical counter 4, the temperature sensor 5 and the synchronous pulley component 6 are arranged in the casing 1. The thermograph control module 2 is arranged in a shell 7 and connected with the temperature sensor 5 and the synchronous pulley component 6 and comprises a temperature signal regulation and acquisition circuit, a single-chip microcomputer, a data transmission circuit, a temperature signal conversion circuit, a motor module, a relay and a watchdog. Complex temperature sensors and elastic transmission parts thereof are omitted, no complex fan control mechanism is adopted, and precision measuring, displaying and signal transferring of the oil surface temperature of the transformer and intelligent interaction with a secondary instrument or computer are realized by means of the simple and reliable structure and the mechatronic sensing and control technique. Further, since all control circuits are mounted in the closed casing of an electromagnetic interference resistant design, the oil surface thermograph is high in electromagnetic interference resistance and simple in maintenance, reliability is greatly improved while the service life is greatly prolonged, and manufacturing cost is greatly reduced.

The invention provides a miniature counter, which comprises a housing, a digital wheel, a gear set, a stepper motor and a circuit board, wherein a digital wheel arranging hole is arranged at the front face of the housing; the digital wheel is the digital wheel of a conventional mechanical counter and is arranged on the back face of a front panel of the housing, the front end face of the digital wheel is positioned in the digital wheel arranging hole on the housing, connected with an output shaft of the gear set and used for recording data and displaying the counting result; the gear set is the gear set for the conventional counter and is arranged in the housing, an input shaft of the gear set is connected with a main shaft of the stepper motor, and the output shaft of the gear set is connected with the digital wheel; the stepper motor is arranged in the housing, the main shaft of the stepper motor is connected with the digital wheel through the gear set; and the circuit board is the circuit part of the counter. On the premise of accurately recording the number of the pulse signals, the miniature counter provided by the invention can achieve low energy consumption, low self-heating effect and good anti-shocking performance.