LED indicator light control system, X-ray collimator is an important component of X-ray machine. Two sets of adjustable screen lead plates are used to define the X-ray exposure field in X-ray emission.Lies in its features, including PC and single chip microcomputer system, camera, motor drive circuit, two dc motors, camera installed in the led indicator light out of the mouth on the shell of light, and make your camera vision, camera to PC, PC output instruction transmitted by serial port to the single-chip microcomputer system, single chip microcomputer system after processing the data, the output through the motor drive circuit to control the led indicator light, and the longitudinal and transverse two dc motor are, inversion, two groups of driven by two dc motor regulation line lead plate movement.
Tag: working principle
Vacuum circuit breakers are used for switching purposes in high voltage (HV) applications. Vacuum circuit breakers are more efficient, smaller and less expensive. VCB breakers have a much longer lifespan than conventional circuit breakers and require little maintenance. VCB (Vacuum circuit breakers) are ideal for typical utility and industrial applications.
A sound level meter is a basic noise measuring instrument, which is an electronic instrument. But it is different from objective electronic instruments such as voltmeters. When converting an acoustic signal into an electrical signal, it can simulate the time characteristic of the human ear's response speed to the sound wave; the frequency characteristic with different sensitivity to high and low frequencies and the intensity characteristic of changing the frequency characteristic at different loudness. A sound level meter is a subjective electronic instrument.
A linear actuator is an electric drive device that converts the rotational movement of the motor into the linear reciprocating movement of the pushrod. It can be used as an executive machine in various simple or complex technological processes to realize remote control, centralized control or automatic control.
A Stepper motor is an open-loop control element stepper motor that converts electrical pulse signals into angular displacement or linear displacement. By controlling the sequence, frequency and number of electrical pulses applied to the motor coils, it can realize the steering, speed and rotation angle control.
Thermocouple temperature sensors are characterized by wide range, low cost, fast response and durability. They are widely used for temperature measurement in industry. R-type thermocouples can measure high temperatures of more than 1700 degrees, and are mainly used in high temperature measurement occasions. In today's article, let's talk about how thermocouples work.
Radiation sensor works by measuring the number of small units of light, known as photons that impact a physical or chemical device located within the instrument. Solar radiation sensors are typically not powered due to the fact that the components located in the device either are influenced by or react to solar radiation in a direct manner.
The realization of the overload protection function of the miniature circuit breaker is based on the principle that bimetals bend in a regular direction as the temperature rises. After the miniature circuit breaker is closed, it is in normal working condition. The inner bimetal is heated by a certain current passing through it. The two pieces of metal have different thermal expansion coefficients and cause bending.
Electric chain hoist is a hoisting and transporting machine that is used to lift or lower heavy loads and can move in the horizontal direction. It has the characteristics of small lifting weight, simple result and convenient operation, and is widely used in the installation, lifting and maintenance of small equipment in industrial and mining enterprises. Generally, electrical power chain hoists have only one constant running speed.
Centrifugal pump refers to a pump that transports liquid by the centrifugal force generated by the rotation of the impeller. Centrifugal pumps are widely used and are almost indispensable equipment in process systems. The small size, simple operation and long service life of the centrifugal pump are the outstanding advantages of the centrifugal pump. If the pipeline delivery system is regarded as the vascular circulation system of the human body, then the centrifugal pump is equivalent to the heart that transports blood.
The working principle of dosing pump is relatively simple, but because it involves highly corrosive liquid and high-precision flow, it has very high requirements for every part and every process of the machine. When the coil of the electromagnet is charged, the iron core pulls the electromagnetic push rod together, and at the same time, the corresponding five springs are compressed and the liquid is quantitatively sucked in. And when the coil of the electromagnet loses power, due to the disappearance of the electromagnetic force, the compressed 5 springs will be released, so that the liquid is quantitatively discharged.
The DC-DC converter is a voltage converter that effectively outputs a fixed voltage after converting the input voltage. DC to DC converters are divided into three categories: step up DC-DC converters, step down DC- DC converters, and buck-boost DC-DC converters. Three types of controls can be used according to requirements. At present, DC to DC converters are widely used in products such as mobile phones, MP3s, digital cameras, and portable media players.
The vacuum generator is a high efficiency and small vacuum component that uses a positive pressure air source to generate negative pressure. This makes it necessary to use both positive and negative pressure in places where there is compressed air or in a pneumatic system. It is very easy and convenient to obtain negative pressure in places. Vacuum ejectors are widely used in industrial automation in the fields of machinery, electronics, packaging, printing, plastics and robotics.
The hub motor (also called wheel motor, wheel hub drive, wheel hub motor, or in-wheel motor) is characterized by the integration of power, transmission and braking devices into the wheel hub, thus greatly simplifying the mechanical part of electric vehicles. Hub motor is not a new thing, as early as 1900, already manufactured the front wheel equipped with hub motor electric vehicles, in the 1970s, hub motor technology in the field of mining transport vehicles and other applications.
Slip-ring induction motors, also known as three-phase wound-rotor AC asynchronous motors, must be connected in series with a resistor or resistors in the motor rotor in order to reduce the starting current and increase the starting torque and power factor, effectively improving the motor starting performance. This article describes the principle and structure of slip-ring motors.
Laser distance sensor is a kind of sensor which uses laser technology to measure the distance. It is generally composed of laser, optical parts and photoelectric devices. It can convert the measured physical distance into optical signals, and then use photoelectric converter to convert the optical signals into electrical signals. Through the filtering, amplification and rectification of corresponding circuits, the output signals can be obtained, so as to calculate the measured quantity.
The pull rope switch is composed of pull rod, reset handle, cam, lock slot and micro switch. The pull rope switch is installed on the frame on both sides of the belt conveyor, and the switch is connected with the steel wire rope along both sides of the conveyor. When an emergency occurs in the conveyor belt equipment, the wire rope is pulled anywhere along the line at the site, and the wire rope pulls the drive arm to rotate, which drives the torque spring through the drive shaft to displace the precision cam and drive the control line, making the conveyor stop running.
The temperature controller is a kind of intelligent temperature control instrument. It has the functions of temperature curve programmable or fixed-point constant temperature control, multiple PID regulation, output power limiting curve programming, manual / automatic switching, soft start, alarm switch output, real-time data query, communication with computer, etc. It combines digital temperature meter and ZK thyristor voltage regulator into one, which integrates temperature measurement, regulation and driving. The meter directly outputs thyristor trigger signal, which can drive all kinds of thyristor loads. It is used in all kinds of high and low voltage switchgear, dry-type transformer, box type substation and other related temperature application fields. In addition to understanding what the temperature controller is, we also need to know its three "how": how to work, how to use, and how to choose the temperature controller for better use of ATO.
Vibration motor is installed at both ends of the rotor shaft each set of adjustable eccentric block, and then use the centrifugal force generated by high-speed rotation of shaft and eccentric block. Its purpose is to get the exciting force. It has a wide range of vibration frequencies. Only when the excitation force and power are properly matched can the mechanical noise be reduced. There are six types of vibration motors, which are classified according to starting and running mode and running speed.
Vibration motor is a power source and vibration source combined as one of the exciting source. Its exciting force is easy to use, and has the advantages of high utilization rate, low energy consumption, low noise, long life and so on. They can be applied to general vibration machinery, such as: vibration crusher, vibrating screen extension machine, vibration baler, vibration shakeout machine, vibration molding machine, vibration pile driver, vibration hoist, vibration filling machine, silo vibration arch broken anti-occlusion device and so on. They are widely used in hydropower construction, thermal power generation, construction, building materials, chemical industry, mining, coal, metallurgy, light industry and other industrial sectors.
Transformer is a device that transform AC voltage, current and impedance. It uses the principle of electromagnetic induction to transform AC power of one voltage level into AC power of another voltage level. When an AC current is passed through the primary coil, an AC magnetic flux is generated in the iron core, causing a voltage (or current) to be induced in the secondary coil. It is composed of an iron core and a coil. The coil has two or more windings. The winding connected to the power supply is called the primary winding, and the remaining windings are called the secondary winding.
Transformer mainly uses the principle of electromagnetic induction to work. The specific process is when an AC voltage U1 is applied to the primary side of the transformer, and the current flowing through the primary winding is I1, the current will generate alternating magnetic flux in the iron core, which makes the primary winding and the secondary winding electromagnetically connections.
