class AKIP():

    def __init__(self, folder):
        self.folder = folder

    def getVoltageDC(self):
        self.instr = open(self.folder, 'w')
        self.instr.write('MEAS:VOLT:DC?\n')
        self.instr.flush()
        self.instr = open(self.folder, 'r')
        data = self.instr.readline()
        self.instr.close()
        return float(data)

    def getCurrentDC(self):
        self.instr = open(self.folder, 'w')
        self.instr.write('MEAS:AMP:DC?\n')
        self.instr.flush()
        self.instr = open(self.folder, 'r')
        data = self.instr.readline()
        self.instr.close()
        return float(data)

    def getVoltageAC(self):
        self.instr = open(self.folder, 'w')
        self.instr.write('MEAS:VOLT:AC?\n')
        self.instr.flush()
        self.instr = open(self.folder, 'r')
        data = self.instr.readline()
        self.instr.close()
        return float(data)

    def getCurrentAC(self):
        self.instr = open(self.folder, 'w')
        self.instr.write('MEAS:AMP:AC?\n')
        self.instr.flush()
        self.instr = open(self.folder, 'r')
        data = self.instr.readline()
        self.instr.close()
        return float(data)

# for i in range(5):
#     print(AKIP('/dev/usbtmc0').getVoltageDC())