| T.R | Title | User | Personal
Name | Date | Lines |
|---|
| 1545.1 | aeronaut Digimeter mc-memory | KBOMFG::KLINGENBERG | | Fri Jul 30 1993 06:04 | 38 |
|
The aeronaut Digimeter mc-memory is an on-board computer to measure
and store in-flight data. It can measure height, time, voltage and
current, and with additional sensors temperature (2x) and rpm.
Technical data:
Size: 75 x 36 x 14 mm (2.95 x 1.42 x 0.55")
Weight: 80 g (2.82 oz)
operating voltage: 4.8 - 6 V
max voltage to measure: 50 V (resolution: 200 mV)
max current to measure: 120 mA (probably typo, I assume it's
120 A, resolution is 200 mA)
max temperature to measure: 130�C (266�F, resolution 1�C)
max rpm 40000 rpm (resolution 1 rpm)
LCD display
RS232 interface
The unit costs DM 299.- (~$ 175). The catalog doesn't clearly say
whether this includes the additional sensors for rpm and temperature.
The device is connected to a free channel of the receiver and will be
operated through the TX. It can store up to 128 values (21 sets of
data). The first set of data (before start) resets the timer and the
height to 0. It has 4 functions: measure (set of data), lock
(measurement stop), readout, and reset/clear. On the bottom, it has 2
buttons to operate the RS232 interface and to reset the unit. You can
read the data either on the integrated LCD display or through the
RS232 interface.
In understand the device is not capable of checking the current your
receiver draws, but other than that, it does about all I can think
of. I think I did see test reports of it, so I assume it's readily
available. I can check if you're interested. In the US, you might
want to call Hobby Lobby since they import aeronaut stuff. Be aware
that the Digimeter - as far as the catalog says - only measures SI
units (meter, Centigrade). Since the unit does not transmit data,
FCC should not care about it (neither does the Deutsche Bundespost).
|
| 1545.2 | Teledream | KBOMFG::KLINGENBERG | | Fri Jul 30 1993 06:05 | 78 |
|
Now, if you are looking for a real telemetric system, here is what
you've been dreaming of:
T E L E D R E A M
This system was advertised in the June issue of FMT, was supposedly
delivered since July-1. They don't have a picture of the unit(s) in
their 2-page ad, though. Teledream can measure up to 7 parameters and
transmits them to the receiving station. It transmits with very low
power on 433 MHz and is certified by the Deutsche Bundespost to be
used in Germany. You can measure
- actual height [m]
- maximum height [m]
- rise/sink rate [m/sec]
- maximum rise/sink rate [m/sec]
- airspeed [m/sec]
- maximum airspeed [m/sec]
- prop rpm [turns/second (??)]
- maximum prop rpm [turns/second (??)]
- receiver voltage [V]
- receiver current [mA]
- motor battery Voltage [V]
- motor battery Current [A]
- maximum motor battery Current [A]
- error messages
- motor temperature [�C]
- motor run time
- accumulated motor run time (all flights)
- flight time [sec]
- accumulated flight time [all flights]
The TX module (on-board) is very small and comparable to a motor
controller. Size is 60 x 40 x 10 mm (2.36 x 1.57 x 0.39"), weight is
20 g (0.7 oz), antenna length (UHF!) 15 cm (6").
Of course, a lost-plane-beeper is included in the system. Seems the
receiving unit has a display and an earphone and you can put any two
signal on these outputs, say a vario to the earphone (you hear the
plane rising or sinking) and a flying height display on the LCD. You
can set up your own system. here is their list:
Teledream startset (TX, RX) DM 499.-
additional TX (2nd model) DM 249.-
Sensor group A (height, vario) DM 199.-
Sensor group A (airspeed) DM 199.-
Sensor group A (speed of boat) DM 199.-
Sensor group B (Prop rpm) DM 49.-
Sensor group B (motor temperature) DM 49.-
Sensor group B (receiver current) DM 49.-
Sensor group B (speed of car) DM 49.-
PC analyzing software DM 99.-
EProm updates DM 55.-
The PC software will not be available until first quarter of 1994.
The current exchange rate is about DM 1.70/$ these days. Start
saving...
|
| 1545.3 | Amazing Stuff | UNYEM::BLUMJ | | Fri Jul 30 1993 09:41 | 15 |
| RE: -1
WOW!
I forgot to bring in the magazine that described the Robbe on board
monitoring unit. From memory, it weighs 22 grams, has 6 sensors
for current, rpm, altitude, temperature, airspeed, and one other.
The data is played back on the unit itself(LCD) or can be plugged
into the Futaba F-28 transmitter(Sold by Robbe) and played back
on the transmitters screen. No price mentioned.
Regards,
Jim
|
| 1545.4 | robbe unit = aeronaut Digimeter?? | KBOMFG::KLINGENBERG | | Fri Jul 30 1993 10:18 | 7 |
| RE: .3
Sounds pretty much like the aeronaut unit in .1 I would expect a VERY
similar price then, too.
Regards,
Hartmut
|
| 1545.5 | uses of telemetry | KAY::FISHER | The higher, the fewer | Fri Jul 30 1993 14:25 | 29 |
| Just peaked my interest.
Although I would not purchase one today at that price - perhaps
after they have been around and become popular they
will have sufficient volume to low the prices. Also
maybe they will get on US legal frequencies.
Of course I would be interested in the altitude vario (sniffler)
but wouldn't it be nice at a busy day (contest) to have
a sensor in your ear that indicated motor RPM. One of the problems
I have with quiet motors is I panic when the sky gets filled with
other planes and I can't hear mine any more.
How about a tone that represented RPM difference for twins!
It could give a hi tone if the Starboard engine dies or a low
tone if the Port engine dies.
How about a stall indicator - mine would be always on!
P.S. Since I will be attending the Submarine Regatta this weekend
please give the manufactures some feedback for me.
We also need depth sensors! Mine detectors! Passive Sonar!
GPS!!! Fish detectors! Pressure in main ballast tanks!
The mind boggles :-)
Bye --+--
Kay R. Fisher |
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| 1545.6 | Robbe on board computer details | GALVIA::ECULLEN | It will never fly, Wright ! | Wed Aug 04 1993 10:48 | 58 |
|
I found some information on the Robbe 'Bord computer' in the 93
Novelties catalog. Their english is a little off but this is what they
say...
----------------------------------------------------------------------
Bord computer No. 8323
Digital measuring unit for storing model data during flight. The
measured values can be stored in the bord computer to be read after
landing. Tension, voltage, battery capacity, temperature, height, rpm
and speed can be measured by means of the optional sensors.
Analog sensors and 1 digital sensor can be connected simultaneously to
the bord computer, 5 measured values and the time (altogether 15
measured values) can be stored per input. The basic unit measures and
indicates permanently and without a sensor the capacity used by the
receiver battery, by means of a measuring range adjustment.
Specifications:
Dimensions: 39x22x18mm
Weight: 22g
Display: LCD, 6 signs
Operatiing voltage: 4.8-6V
REV sensor: No. 8324
300-30000 rpm,digital
Tension sensor: No. 8235
Commutable 0-10, 0-50Volt, analogue
Temperature sensor: No. 8326
-20 -> 150, analogue
Speed sensor: No. 8327
0-400km/h, analogue
Height sensor: No. 8328
Commutable 0-1000, 0-2000m,analogue
Current sensors:
0-5A No. 8331
0-25A No. 8330
0-75A No. 8329
----------------------------------------------------------------------
No picture of the unit or sensors, unlike the rest of the catalog !
Also noticed upgrades for the FC series transmitters (FC-28 V3, FC-18
V3, FC-18 V3+). New F14-Navy tx.
Eric.
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