“Customers who use electric valves need to detect the switch control current of the electric valve. Generally, the current ranges from several hundred mA to several A. It is necessary to understand whether the current in the circuit is overloaded, to judge the advantages and disadvantages of the electric valve, and whether it will be used in the future. There will be no safety hazards for product optimization design. In addition, this time the capital investment is limited, I hope to use entry-level products, and the current accessories can meet the needs. Customers want to be able to achieve testing purposes within a limited budget.
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Test requirements:
Customers who use electric valves need to detect the switch control current of the electric valve. Generally, the current ranges from several hundred mA to several A. It is necessary to understand whether the current in the circuit is overloaded, to judge the advantages and disadvantages of the electric valve, and whether it will be used in the future. There will be no safety hazards for product optimization design. In addition, this time the capital investment is limited, I hope to use entry-level products, and the current accessories can meet the needs. Customers want to be able to achieve testing purposes within a limited budget.
The electric valve simply uses the electric actuator to control the valve, so as to realize the opening and closing of the valve. It can be divided into upper and lower parts, the upper part is the electric actuator, and the lower part is the valve. Also called air conditioning valve. Electric valves are usually connected by electric actuators and valves, and become electric valves after installation and debugging. The electric valve uses electric energy as power to connect the electric actuator to drive the valve to realize the opening and closing and adjustment of the valve. So as to achieve the purpose of switching or adjusting the pipeline medium.
Test program:
The solution of entry-level Tektronix oscilloscope TBS1102C + Tektronix current probe TCP2020 is configured according to the actual situation of customers. The customer mainly tests the control current, especially when switching, whether the startup or drop is within the normal range, and whether there is an overcurrent situation, so as to determine the quality of the electric valve. The frequency of the current signal itself is not high, and the bandwidth of 100M is sufficient. Considering the interface problem of the Tektronix oscilloscope TBS1000C series products, the configured TCP2020 current probe can be directly connected and used, and the range is also very suitable, which has been recognized by customers.
Through testing, it is found that entry-level TBS1000C series oscilloscopes and TCP2020 probes can also see better results:
Current test effect
Configuration requirements:
According to the actual characteristics of the current, the signal frequency is not very high, and the optional 100M bandwidth is sufficient. Because of the characteristics of the oscilloscope, the current probe is relatively small, and the TCP2020 probe is the best choice within the range that can be tolerated.
System configuration reference:
The above is the application of Tektronix oscilloscope and current probe in overcurrent test of electric valve introduced by Antai Test. If you want to know more test solutions of Tektronix oscilloscope, please visit www.agitek.com.cn.
The Links: EL640480-AA1 LT1763CS8-15 IGBTS
