| To get higher precision of data acquisition | | | | rating of isolation products, usually divided into |
| capability, Test And measurement equipment, | | | | functional, basic, double and reinforced so. |
| engineers, designers, high common-mode voltage | | | | Functional does not provide protection against |
| in the case of impact of the system to measure | | | | electrical shock isolators; basic model is only a |
| small signal change is a challenge. These high | | | | single basic insulation level, the user will not directly |
| voltage is mainly connected by two ground | | | | contact; double insulation above the increase in the |
| potential difference between, or as lightning or | | | | basic insulation in order to provide additional |
| motor / switching equipment caused by mutations | | | | support to electric shock protection; enhanced the |
| in the power surge generated by transient | | | | is to provide and double the same level of shock |
| overvoltage. The voltage will not only affect the | | | | protection, and ensure that invalid insurance model |
| measurement accuracy, and they may damage | | | | (failsafemode). |
| the system itself and the risk of electric shock | | | | Failure Insurance is detected when the system |
| caused by the user. | | | | failure or an error occurs, automatically stop |
| Isolators needed to provide physical separation | | | | running and to maintain the security status of |
| between the two systems and electrical isolation | | | | components of the system termination mode, |
| in order to avoid the circuit between the two | | | | which allows users to securely access. In addition |
| systems or two mutations in voltage surge | | | | to the work of insulation type and rated voltage, |
| damage. They need to provide both the lead and | | | | the standard also defines the different spacer |
| the common ground the two signals occurs | | | | devices space requirements, creepage distance |
| between the common-mode voltage range and | | | | (creepagedistance) and Clearance |
| higher, which is measured in series Battery | | | | (clearancedistance). Of these, creepage distance is |
| Examples of voltage between the groups is | | | | defined as two electrical isolation between |
| important. Electrical system ground loops is to use | | | | conductors of solid dielectric on the surface of the |
| the public path between two points in the extra | | | | shortest path, the external electrical isolation gap |
| current, and isolators for the cut is very | | | | is two electric conductors or the shortest distance |
| important to them, and has been widely applied in | | | | through the air, the visual range of their distance. |
| the detection system differential voltage | | | | Peak working voltage is 300V for example, the |
| measurement. In addition, the isolator can be used | | | | system required creepage distances to reach |
| as level converters to resolve the system or | | | | 3-4mm. |
| circuit voltage level between the different | | | | Isolator can also signal transmission technology |
| compatibility. | | | | according to different classification of, there are |
| Used in the measuring equipment can not only | | | | three types, divided into magnetic, capacitive, and |
| safeguard the isolator system security, and | | | | optical isolators. Using magnetic coupling |
| protection for the user also has a high importance | | | | transformer isolator is usually more efficient, |
| was, therefore, provides a high-voltage equipment | | | | widely used in long distance applications, it is |
| design safety standards. Currently there are two | | | | essentially not available to absorb the excess |
| main criteria in this respect, namely test and | | | | frequency of physical isolation, and vulnerability to |
| measurement instruments applicable to the | | | | magnetic interference. Capacitive isolators will be |
| IEC61010-1, and apply information technology | | | | in the oxide barrier layer on the transmission of |
| equipment, IEC60950-1. In this standard, 30Vrms | | | | data, however, because the device itself features |
| and 40.2V peak or 60VDC voltage is defined as | | | | a capacitor, so easy to work in high frequency by |
| hazardous. Therefore, in this user-friendly access | | | | high frequency noise, thereby reducing the |
| to the ultra-low-voltage circuits require isolators. | | | | resistance to voltage transients and to reduce |
| There are many markets with different insulation | | | | isolation. |