Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Nonquantitative
Patent
1978-05-01
1980-02-19
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Nonquantitative
324 725, G01R 1916, G01R 3102
Patent
active
041896734
ABSTRACT:
A pin-shaped handheld test probe particularly adapted to current mode logic levels indicates through a plurality of visual indicators HIGH, LOW, MIDRANGE, OPEN and SUPPLY VOLTAGE logic levels. Each visual indicator is controlled by the output of at least one comparator amplifier having one of two inputs resistively connected to a testing point and the other input resistively coupled to a stable reference voltage level generated by a zener stabilized precision resistor ladder network. The testing point is voltage biased to give an indication of OPEN when the test probe is attached to a pin or point which is unconnected.
REFERENCES:
patent: 3573614 (1971-04-01), Wittbrodt
patent: 3796951 (1974-03-01), Joseph
patent: 3838339 (1974-09-01), Brandt
patent: 3903470 (1975-09-01), Mirabile et al.
patent: 3927571 (1975-12-01), Athey
patent: 3959791 (1976-05-01), Takahashi et al.
patent: 3961256 (1976-06-01), Gaskell et al.
patent: 3969672 (1976-07-01), Wallander et al.
patent: 3979657 (1976-09-01), Yorksie
patent: 4004220 (1977-01-01), Kerber et al.
patent: 4020414 (1977-04-01), Paredes
Brenner Leonard C.
Burroughs Corporation
Chung Edmund M.
Peterson Kevin
Strecker Gerard R.
LandOfFree
Pen-shaped precision multi-level current mode logic test probe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pen-shaped precision multi-level current mode logic test probe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pen-shaped precision multi-level current mode logic test probe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-654932