Document |
Document Title |
JPS644205Y2 |
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JPS644204Y2 |
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JPS644203Y2 |
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JPS644201Y2 |
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JPS644202Y2 |
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JPS645648B2 |
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JPS646535U |
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JPS63189332U |
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JPS63264833A |
PURPOSE: To prevent the erroneous detection by receiving the signal wave-form caused by the electric discharge occurring in the fixed region and obtained by an antenna as one wave-form and counting the number of them to judge the defecti...
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JPS6349845B2 |
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JPS6348014B2 |
The operating range of an ionization tube vacuum gauge is increased by applying at least two different bias voltages to the tube and measuring ion current for the two bias voltages. The ratio of the ion currents indicates vacuum pressure...
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JPS63141439U |
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JPS6345052B2 |
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JPS63135141U |
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JPS6330987Y2 |
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JPS63198840A |
PURPOSE:To improve a measurement limit by arranging an ion collector inside an anode approximately in a dot shape and also arranging a hot cathode outside the anode. CONSTITUTION:Two wire gauge materials are molded in a bowl shape of 24m...
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JPS63188732A |
PURPOSE:To measure the degree of vacuum of a flat matrix CRT with high accuracy by providing a power source which supplies an electron flow to between the cathode electrode and other electrodes of the flat matrix CRT and a current detect...
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JPS63176694A |
PURPOSE: To eliminate the necessity for providing a vacuum gage, by obtaining a degree of vacuum in a turbo molecular pump from a phase difference between a current and voltage in an induction motor, which drives a rotor, to be displayed...
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JPS6324422Y2 |
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JPS63151834A |
PURPOSE:To prevent the sudden lowering in the vacuum degree or contamination within a chamber due to the sudden discharge of gas, by allowing a vacuum gauge to automatically pass a reset state in a process altering a measuring state and ...
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JPS6322505Y2 |
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JPS63145935A |
PURPOSE:To measure pressure in a vacuum atmosphere regardless of the composition ratio of a gas contained therein, by connecting a vacuum chamber to a gas inlet of a compressor with the compression ratio confirmed for various gases and a...
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JPS63145934A |
PURPOSE:To enable measurement of pressure in an extra-high vacuum area, by connecting a vacuum chamber to a gas inlet of a compressor and an extra- high vacuum meter to a gas outlet thereof. CONSTITUTION:When pressure at a gas inlet 15 o...
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JPS63145936A |
PURPOSE:To enable precise measurement, by connecting a vacuum chamber to a gas inlet of a compressor while an extra-high vacuum meter is connected to a gas outlet thereof to make the compressor reversible so that exhaustion inside a vacu...
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JPS63115025A |
PURPOSE:To measure the gas pressure in a cathode-ray tube while the cathode- ray tube is in operation and to improve the measurement sensitivity by fitting an ion collector for the in-tube gas to a funnel part. CONSTITUTION:The ion colle...
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JPS63113332A |
PURPOSE:To measure an atmospheric pressure accurately, by measuring the atmospheric pressure depending on changes in the drag of gas molecules acting on a planar vibrator to prevent any aging in the detection value. CONSTITUTION:When a v...
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JPS6322249B2 |
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JPS6310773B2 |
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JPS6335936U |
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JPS6323629U |
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JPS6241233Y2 |
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JPS62161756U |
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JPS62218834A |
PURPOSE: To measure pressure consistently from atmospheric pressure to superhigh vacuum area with a small single type apparatus, by carrying a mechanical vibrator type manometer and an ionization type manometer on a single flange while a...
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JPS62211534A |
PURPOSE: To improve the reliability and to realize sufficiently practical use in terms of economy by providing a gas concentration switch with plural operation set values which differ stepwise and monitoring the operation time between re...
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JPS6239371B2 |
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JPS62185139A |
PURPOSE: To enable the monitoring of vacuum free from effecting influence on shut down performance by the start of discharge within a discharge tube, by connecting a discharge tube which starts a discharge at a higher vacuum than that wi...
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JPS62182636A |
PURPOSE: To extremely reduce a measuring error due to the change in the temp. of a diaphragm type vacuum gauge, by covering a gauge frame body with a shield frame body through a vacuum space. CONSTITUTION: A gauge frame body 1 is covered...
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JPS62144037A |
PURPOSE: To achieve a higher impact resistance, by providing a protective circuit adapted to protect a vibrating circuit from abnormally high voltage and large current by discharging between a vibrating electrode and the vibrating circui...
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JPS62137533A |
PURPOSE: To enable the measurement of vacuum pressure of 102W1-5Torr, by providing a driving means of a vibration body and a means of detecting the position thereof on a vibration plate of tuning fork type vibrator comprising a parallel ...
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JPS6295732U |
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JPS62129730A |
A measuring head for a vacuum gauge. An essentially cylindrical housing encloses a measuring cell which is sealed in a vacuum tight manner against the surrounding atmosphere and is connectable with an evacuatable cavity. A measuring fila...
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JPS6282561U |
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JPS6262945U |
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JPS6253331U |
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JPS6251252U |
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JPS6249743U |
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JPS6243436U |
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JPS6249232A |
PURPOSE: To enable the measurement of vacuum of a vacuum working chamber even during the bleeding of a gas from an ion collector, by arranging an introduction bar connected to a current introducing section outside the vacuum at both ends...
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JPS6243530A |
PURPOSE: To positively detect the lowering of a vacuum degree and to enable the detection at a point in time while the vacuum degree is still high, by detecting discharge light at the time of discharge in a first vacuum gap with the ligh...
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JPS6220344U |
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