Area measuring instrument related sensors and design

Area measuring instruments are available for simultaneous measurement or asynchronous measurement. The so-called synchronous measurement method (rotational speed detection) refers to the on-line detection of the speed of the motor, and based on the speed of the motor, the linear velocity of the measured object is calculated. The asynchronous measurement method is based on the rated speed of the motor to calculate the linear velocity of the measured object, but the fluctuation of the grid voltage will affect the measurement accuracy. Area measuring instrument for speed detection methods There are generally three kinds: First, the pulse disc angle digital converter, the characteristics of high precision, but the pulse disk is more wear; the second is the photoelectric encoder digital converter, the characteristics of high precision The encoder plate has no wear and the light source has a short life span. The third one is an electro-inductive proximity switch. It is mainly used to measure the distance. Its characteristics are simple structure, convenient installation and low price.

The measuring sensor is one of the key parts of the area measuring instrument. Its performance is directly related to the measuring accuracy. Optical sensors can be divided into two types: First, photoelectric sensors, which have the characteristics of small size, high speed, high cost, high installation requirements, suitable for relatively clean environment, and secondly, photosensitive sensors, which use fluorescent lamps as common light sources. The cost and the installation conditions and the use environment are relatively low. The interface circuit between the area measuring instrument and the measuring sensor can be selected according to the specific circumstances.

The area measuring instrument program adopts top-down design and module structure, including monitoring program, dynamic scanning display, printing, algorithm and other modules. T0 is a timed interruption mode, designing a perpetual calendar and clock program, sampling and important programs within the interrupt service routine. In order to ensure the brightness of the display, the programming process focuses on ensuring that the sampling and measuring modules work in order, and executes the display subroutine with as much time as possible, and calls the display subroutine for software delays. Such as the print program, keyboard shake, E2PROM write, etc. are called display subroutine methods. Setting or modifying important parameters requires password protection. Important parameters are stored in the E2PROM. Therefore, the operator's misoperation does not affect the normal operation of the measurement.

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pneumatic Two Component Sealant Extruder is one manual sealant spreadin machine for insulating glass.Machine is one economic type,but after finish job,need clean the glue gun and glue pipe avoid machine blocked.

Machine having the following feature:The machine`s main parts (including A and B component glue pump,gelatinize gun and safety valve) are imported from Korea, or made of high-tension and high-quality stainless steel with thermal treatment, the reliability and durability of the machine is greatly improved.The key parts of ST06 are original parts of world famous brand YLK brand in Korea,The curing agent hydraulic system is equipped with two filtering devices to improve the mixing uniformity and curing performance of the two components the basic pump, curing pump and proportional high-pressure valve port of the gluing machine are made of special alloy with zero leakage.

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