TY - JOUR AU - Singer, N AB - A cheap and extremely simple device is described for the sensing and keeping constant of the level of liquid nitrogen within an enclosed Dewar. TI - A sensing device for an automatic liquid nitrogen dispenser JF - Journal of Physics E: Scientific Instruments DO - 10.1088/0022-3735/3/6/415 DA - 1970-06-01 UR - https://www.deepdyve.com/lp/iop-publishing/a-sensing-device-for-an-automatic-liquid-nitrogen-dispenser-e03OU0PiuL SP - 463 VL - 3 IS - 6 DP - DeepDyve ER -