衛星アンテナ測位

The two primary considerations when pointing a satellite dish are the angle of elevation and azimuth. The angle of elevation is the angle where your satellite dish is pointed into the sky at a (typically) 90° angle to the signal from the satellite. 0° angle of elevation is considered parallel with the earth and 90° angle of elevation is considered pointing straight up into the sky. This means that your angle of elevation will be somewhere between those two. Note that there are also “offset” antennas where the goal is not to be at a 90° angle. This is most easily accomplished with a tilt sensor or inclinometer, which is where our products come into play.

方位角は、基本的にはコンパスの方位であり、衛星の方向に衛星アンテナを向ける必要があります。例えば、衛星が赤道上にあり、私が北半球にいる場合、衛星のアンテナは南の方向に向けなければなりません。逆に、私が南半球にいる場合は、衛星のアンテナを北の方向に向ける必要があります。

The goal of both of these positions for the satellite is to optimize the signal strength so that you have the best signal and can use the satellite service uninterrupted. If you have the GPS coordinates of your satellite dish you can easily calculate the azimuth and angle of elevation needed for an optimal signal. Higher-end satellites and mobile satellites often have an automatic angle of elevation and azimuth calculations by including a tilt sensor or inclinometer and a digital compass and include motors to automatically position the satellite dish.

The most common Fredericks tilt sensor for the angle of elevation calculations is the 0717-4318-99 tilt sensor which is our lowest cost tilt measurement option. This sensor has a ±60° range giving it a total operating range of 120°, which is more than enough for almost all satellite applications. It also has an accuracy of ±0.1°, which is again more than adequate for most satellite applications. If higher accuracy is needed, we also offer the 0717-4313-99 which has the same operating range with improved accuracy of ±0.05°.

フレデリックスのチルトセンサは、角度位置を出力するために信号調整用の電子機器が必要です。当社では、当社のセンサ用に様々なシグナルコンディショニングボードを提供しており、また、アナログ0~5V DC、RS-232、RS-485、またはSPI通信のような使いやすい出力を備えた、パッケージ済みで環境に配慮したソリューションを提供しています。

製品情報

電解式傾斜センサー回路 電子式傾斜センサー, 0717-4318-99, 0717-4319-99, フレデリックス社, +1 215 947 2500

±60°の動作範囲、±0.1°の精度

Dual-Axis Wide-Range Electrolytic Tilt Sensor

電解式傾斜センサー回路 電子式傾斜センサー, 0717-4313-99, 0717-4315-99, フレデリックス社, +1 215 947 2500

±60°動作範囲、±0.05°精度

Dual-Axis Wide-Range Electrolytic Tilt Sensor