def test():
    e=Experiment()
    e.ttl_pulse(length=1e-6, value=1)
    e.wait(1e-3)
    e.ttl_pulse(length=1e-6,value=1)
    e.record(samples=1024,frequency=1e6,sensitivity=1)
    return e

def experiment():
    for i in range(100):
        yield test()