python系列007

//使用类进行设备控制
类文件内容

import pyvisa
import numpy as np
import time

class PiDevice:
    def __init__(self):
        self.device_id = None                   #默认无设备连接

    def find_device_address(self, device_id):
        rm = pyvisa.ResourceManager()  # 创建一个VISA资源管理对象rm;
        self.device_id = device_id
        self.goal_dev = rm.open_resource(self.device_id)     #找到设备，准备通信
        # return self.goal_dev

    def set_voltage(self, startVoltage, endVoltage, stepSize):
        # Send a command to the instrument
        for voltage in np.arange(startVoltage, endVoltage, stepSize):
            # voltage = voltage / 10
            self.goal_dev.write(f'VSET1:{voltage}')  # 设置电压输出
            time.sleep(1)

主文件内容

from pimi import PiDevice

powerDev = PiDevice()
powerAddress = powerDev.find_device_address("ASRL3::INSTR")       #手动写入设备地址参数，可以借助NI Max读取
test001 = powerDev.set_voltage(1, 1.9, 0.1)